// dear imgui, v1.92.9 WIP

// (headers)

// Help:

// - Call and read ImGui::ShowDemoWindow() in imgui_demo.cpp. All applications in examples/ are doing that.

// - Read top of imgui.cpp for more details, links and comments.

// - Add '#define IMGUI_DEFINE_MATH_OPERATORS' before including imgui.h (or in imconfig.h) to access courtesy maths operators for ImVec2 and ImVec4.

// Resources:

// - FAQ ........................ https://dearimgui.com/faq (in repository as docs/FAQ.md)

// - Homepage ................... https://github.com/ocornut/imgui

// - Releases & Changelog ....... https://github.com/ocornut/imgui/releases

// - Gallery .................... https://github.com/ocornut/imgui/issues?q=label%3Agallery (please post your screenshots/video there!)

// - Wiki ....................... https://github.com/ocornut/imgui/wiki (lots of good stuff there)

//   - Getting Started            https://github.com/ocornut/imgui/wiki/Getting-Started (how to integrate in an existing app by adding ~25 lines of code)

//   - Third-party Extensions     https://github.com/ocornut/imgui/wiki/Useful-Extensions (ImPlot & many more)

//   - Bindings/Backends          https://github.com/ocornut/imgui/wiki/Bindings (language bindings + backends for various tech/engines)

//   - Debug Tools                https://github.com/ocornut/imgui/wiki/Debug-Tools

//   - Glossary                   https://github.com/ocornut/imgui/wiki/Glossary

//   - Software using Dear ImGui  https://github.com/ocornut/imgui/wiki/Software-using-dear-imgui

// - Issues & support ........... https://github.com/ocornut/imgui/issues

// - Test Engine & Automation ... https://github.com/ocornut/imgui_test_engine (test suite, test engine to automate your apps)

// - Web version of the Demo .... https://pthom.github.io/imgui_explorer (w/ source code browser)

// For FIRST-TIME users having issues compiling/linking/running:

// please post in https://github.com/ocornut/imgui/discussions if you cannot find a solution in resources above.

// EVERYTHING ELSE should be asked in 'Issues'! We are building a database of cross-linked knowledge there.

// Since 1.92, we encourage font loading questions to also be posted in 'Issues'.

// Library Version

// (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')

#define IMGUI_VERSION       "1.92.9 WIP"

#define IMGUI_VERSION_NUM   19284

#define IMGUI_HAS_TABLE             // Added BeginTable() - from IMGUI_VERSION_NUM >= 18000

#define IMGUI_HAS_TEXTURES          // Added ImGuiBackendFlags_RendererHasTextures - from IMGUI_VERSION_NUM >= 19198

#define IMGUI_HAS_VIEWPORT          // In 'docking' WIP branch.

#define IMGUI_HAS_DOCK              // In 'docking' WIP branch.

/*

Index of this file:

// [SECTION] Header mess

// [SECTION] Forward declarations and basic types

// [SECTION] Texture identifiers (ImTextureID, ImTextureRef)

// [SECTION] Dear ImGui end-user API functions

// [SECTION] Flags & Enumerations

// [SECTION] Tables API flags and structures (ImGuiTableFlags, ImGuiTableColumnFlags, ImGuiTableRowFlags, ImGuiTableBgTarget, ImGuiTableSortSpecs, ImGuiTableColumnSortSpecs)

// [SECTION] Helpers: Debug log, Memory allocations macros, ImVector<>

// [SECTION] ImGuiStyle

// [SECTION] ImGuiIO

// [SECTION] Misc data structures (ImGuiInputTextCallbackData, ImGuiSizeCallbackData, ImGuiWindowClass, ImGuiPayload)

// [SECTION] Helpers (ImGuiOnceUponAFrame, ImGuiTextFilter, ImGuiTextBuffer, ImGuiStorage, ImGuiListClipper, Math Operators, ImColor)

// [SECTION] Multi-Select API flags and structures (ImGuiMultiSelectFlags, ImGuiMultiSelectIO, ImGuiSelectionRequest, ImGuiSelectionBasicStorage, ImGuiSelectionExternalStorage)

// [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawFlags, ImDrawListFlags, ImDrawList, ImDrawData)

// [SECTION] Texture API (ImTextureFormat, ImTextureStatus, ImTextureRect, ImTextureData)

// [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFontBaked, ImFont)

// [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)

// [SECTION] ImGuiPlatformIO + other Platform Dependent Interfaces (ImGuiPlatformMonitor, ImGuiPlatformImeData)

// [SECTION] Obsolete functions and types

*/

#pragma once

// Configuration file with compile-time options

// (edit imconfig.h or '#define IMGUI_USER_CONFIG "myfilename.h" from your build system)

#ifdef IMGUI_USER_CONFIG

#include IMGUI_USER_CONFIG

#endif

#include "imconfig.h"

#ifndef IMGUI_DISABLE

//-----------------------------------------------------------------------------

// [SECTION] Header mess

//-----------------------------------------------------------------------------

// Includes

#include <float.h>                  // FLT_MIN, FLT_MAX

#include <stdarg.h>                 // va_list, va_start, va_end

#include <stddef.h>                 // ptrdiff_t, NULL

#include <string.h>                 // memset, memmove, memcpy, strlen, strchr, strcpy, strcmp

// Define attributes of all API symbols declarations (e.g. for DLL under Windows)

// IMGUI_API is used for core imgui functions, IMGUI_IMPL_API is used for the default backends files (imgui_impl_xxx.h)

// Using dear imgui via a shared library is not recommended: we don't guarantee backward nor forward ABI compatibility + this is a call-heavy library and function call overhead adds up.

#ifndef IMGUI_API

#define IMGUI_API

#endif

#ifndef IMGUI_IMPL_API

#define IMGUI_IMPL_API              IMGUI_API

#endif

// Helper Macros

// (note: compiling with NDEBUG will usually strip out assert() to nothing, which is NOT recommended because we use asserts to notify of programmer mistakes.)

#ifndef IM_ASSERT

#include <assert.h>

#define IM_ASSERT(_EXPR)            assert(_EXPR)                               // You can override the default assert handler by editing imconfig.h

#endif

#define IM_COUNTOF(_ARR)            ((int)(sizeof(_ARR) / sizeof(*(_ARR))))     // Size of a static C-style array. Don't use on pointers!

#define IM_UNUSED(_VAR)             ((void)(_VAR))                              // Used to silence "unused variable warnings". Often useful as asserts may be stripped out from final builds.

#define IM_STRINGIFY_HELPER(_EXPR)  #_EXPR

#define IM_STRINGIFY(_EXPR)         IM_STRINGIFY_HELPER(_EXPR)                  // Preprocessor idiom to stringify e.g. an integer or a macro.

// Check that version and structures layouts are matching between compiled imgui code and caller. Read comments above DebugCheckVersionAndDataLayout() for details.

#define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))

// Helper Macros - IM_FMTARGS, IM_FMTLIST: Apply printf-style warnings to our formatting functions.

// (MSVC provides an equivalent mechanism via SAL Annotations but it requires the macros in a different

//  location. e.g. #include <sal.h> + void myprintf(_Printf_format_string_ const char* format, ...),

//  and only works when using Code Analysis, rather than just normal compiling).

// (see https://github.com/ocornut/imgui/issues/8871 for a patch to enable this for MSVC's Code Analysis)

#if !defined(IMGUI_USE_STB_SPRINTF) && defined(__MINGW32__) && !defined(__clang__)

#define IM_FMTARGS(FMT)             __attribute__((format(gnu_printf, FMT, FMT+1)))

#define IM_FMTLIST(FMT)             __attribute__((format(gnu_printf, FMT, 0)))

#elif !defined(IMGUI_USE_STB_SPRINTF) && (defined(__clang__) || defined(__GNUC__))

#define IM_FMTARGS(FMT)             __attribute__((format(printf, FMT, FMT+1)))

#define IM_FMTLIST(FMT)             __attribute__((format(printf, FMT, 0)))

#else

#define IM_FMTARGS(FMT)

#define IM_FMTLIST(FMT)

#endif

// Disable some of MSVC most aggressive Debug runtime checks in function header/footer (used in some simple/low-level functions)

#if defined(_MSC_VER) && !defined(__clang__)  && !defined(__INTEL_COMPILER) && !defined(IMGUI_DEBUG_PARANOID)

#define IM_MSVC_RUNTIME_CHECKS_OFF      __pragma(runtime_checks("",off))     __pragma(check_stack(off)) __pragma(strict_gs_check(push,off))

#define IM_MSVC_RUNTIME_CHECKS_RESTORE  __pragma(runtime_checks("",restore)) __pragma(check_stack())    __pragma(strict_gs_check(pop))

#else

#define IM_MSVC_RUNTIME_CHECKS_OFF

#define IM_MSVC_RUNTIME_CHECKS_RESTORE

#endif

// Warnings

#ifdef _MSC_VER

#pragma warning (push)

#pragma warning (disable: 26495)    // [Static Analyzer] Variable 'XXX' is uninitialized. Always initialize a member variable (type.6).

#endif

#if defined(__clang__)

#pragma clang diagnostic push

#if __has_warning("-Wunknown-warning-option")

#pragma clang diagnostic ignored "-Wunknown-warning-option"         // warning: unknown warning group 'xxx'

#endif

#pragma clang diagnostic ignored "-Wunknown-pragmas"                // warning: unknown warning group 'xxx'

#pragma clang diagnostic ignored "-Wold-style-cast"                 // warning: use of old-style cast

#pragma clang diagnostic ignored "-Wfloat-equal"                    // warning: comparing floating point with == or != is unsafe

#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"  // warning: zero as null pointer constant

#pragma clang diagnostic ignored "-Wreserved-identifier"            // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter

#pragma clang diagnostic ignored "-Wunsafe-buffer-usage"            // warning: 'xxx' is an unsafe pointer used for buffer access

#pragma clang diagnostic ignored "-Wnontrivial-memaccess"           // warning: first argument in call to 'memset' is a pointer to non-trivially copyable type

#elif defined(__GNUC__)

#pragma GCC diagnostic push

#pragma GCC diagnostic ignored "-Wpragmas"                          // warning: unknown option after '#pragma GCC diagnostic' kind

#pragma GCC diagnostic ignored "-Wfloat-equal"                      // warning: comparing floating-point with '==' or '!=' is unsafe

#pragma GCC diagnostic ignored "-Wclass-memaccess"                  // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead

#endif

//-----------------------------------------------------------------------------

// [SECTION] Forward declarations and basic types

//-----------------------------------------------------------------------------

// Scalar data types

typedef unsigned int        ImGuiID;// A unique ID used by widgets (typically the result of hashing a stack of string)

typedef signed char         ImS8;   // 8-bit signed integer

typedef unsigned char       ImU8;   // 8-bit unsigned integer

typedef signed short        ImS16;  // 16-bit signed integer

typedef unsigned short      ImU16;  // 16-bit unsigned integer

typedef signed int          ImS32;  // 32-bit signed integer == int

typedef unsigned int        ImU32;  // 32-bit unsigned integer (often used to store packed colors)

typedef signed   long long  ImS64;  // 64-bit signed integer

typedef unsigned long long  ImU64;  // 64-bit unsigned integer

// Forward declarations: ImDrawList, ImFontAtlas layer

struct ImDrawChannel;               // Temporary storage to output draw commands out of order, used by ImDrawListSplitter and ImDrawList::ChannelsSplit()

struct ImDrawCmd;                   // A single draw command within a parent ImDrawList (generally maps to 1 GPU draw call, unless it is a callback)

struct ImDrawData;                  // All draw command lists required to render the frame + pos/size coordinates to use for the projection matrix.

struct ImDrawList;                  // A single draw command list (generally one per window, conceptually you may see this as a dynamic "mesh" builder)

struct ImDrawListSharedData;        // Data shared among multiple draw lists (typically owned by parent ImGui context, but you may create one yourself)

struct ImDrawListSplitter;          // Helper to split a draw list into different layers which can be drawn into out of order, then flattened back.

struct ImDrawVert;                  // A single vertex (pos + uv + col = 20 bytes by default. Override layout with IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT)

struct ImFont;                      // Runtime data for a single font within a parent ImFontAtlas

struct ImFontAtlas;                 // Runtime data for multiple fonts, bake multiple fonts into a single texture, TTF/OTF font loader

struct ImFontAtlasBuilder;          // Opaque storage for building a ImFontAtlas

struct ImFontAtlasRect;             // Output of ImFontAtlas::GetCustomRect() when using custom rectangles.

struct ImFontBaked;                 // Baked data for a ImFont at a given size.

struct ImFontConfig;                // Configuration data when adding a font or merging fonts

struct ImFontGlyph;                 // A single font glyph (code point + coordinates within in ImFontAtlas + offset)

struct ImFontGlyphRangesBuilder;    // Helper to build glyph ranges from text/string data

struct ImFontLoader;                // Opaque interface to a font loading backend (stb_truetype, FreeType etc.).

struct ImTextureData;               // Specs and pixel storage for a texture used by Dear ImGui.

struct ImTextureRect;               // Coordinates of a rectangle within a texture.

struct ImColor;                     // Helper functions to create a color that can be converted to either u32 or float4 (*OBSOLETE* please avoid using)

// Forward declarations: ImGui layer

struct ImGuiContext;                // Dear ImGui context (opaque structure, unless including imgui_internal.h)

struct ImGuiIO;                     // Main configuration and I/O between your application and ImGui (also see: ImGuiPlatformIO)

struct ImGuiInputTextCallbackData;  // Shared state of InputText() when using custom ImGuiInputTextCallback (rare/advanced use)

struct ImGuiKeyData;                // Storage for ImGuiIO and IsKeyDown(), IsKeyPressed() etc functions.

struct ImGuiListClipper;            // Helper to manually clip large list of items

struct ImGuiMultiSelectIO;          // Structure to interact with a BeginMultiSelect()/EndMultiSelect() block

struct ImGuiOnceUponAFrame;         // Helper for running a block of code not more than once a frame

struct ImGuiPayload;                // User data payload for drag and drop operations

struct ImGuiPlatformIO;             // Interface between platform/renderer backends and ImGui (e.g. Clipboard, IME, Multi-Viewport support). Extends ImGuiIO.

struct ImGuiPlatformImeData;        // Platform IME data for io.PlatformSetImeDataFn() function.

struct ImGuiPlatformMonitor;        // Multi-viewport support: user-provided bounds for each connected monitor/display. Used when positioning popups and tooltips to avoid them straddling monitors

struct ImGuiSelectionBasicStorage;  // Optional helper to store multi-selection state + apply multi-selection requests.

struct ImGuiSelectionExternalStorage;//Optional helper to apply multi-selection requests to existing randomly accessible storage.

struct ImGuiSelectionRequest;       // A selection request (stored in ImGuiMultiSelectIO)

struct ImGuiSizeCallbackData;       // Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)

struct ImGuiStorage;                // Helper for key->value storage (container sorted by key)

struct ImGuiStoragePair;            // Helper for key->value storage (pair)

struct ImGuiStyle;                  // Runtime data for styling/colors

struct ImGuiTableSortSpecs;         // Sorting specifications for a table (often handling sort specs for a single column, occasionally more)

struct ImGuiTableColumnSortSpecs;   // Sorting specification for one column of a table

struct ImGuiTextBuffer;             // Helper to hold and append into a text buffer (~string builder)

struct ImGuiTextFilter;             // Helper to parse and apply text filters (e.g. "aaaaa[,bbbbb][,ccccc]")

struct ImGuiViewport;               // A Platform Window (always 1 unless multi-viewport are enabled. One per platform window to output to). In the future may represent Platform Monitor

struct ImGuiWindowClass;            // Window class (rare/advanced uses: provide hints to the platform backend via altered viewport flags and parent/child info)

// Enumerations

// - We don't use strongly typed enums much because they add constraints (can't extend in private code, can't store typed in bit fields, extra casting on iteration)

// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!

//   - In Visual Studio: Ctrl+Comma ("Edit.GoToAll") can follow symbols inside comments, whereas Ctrl+F12 ("Edit.GoToImplementation") cannot.

//   - In Visual Studio w/ Visual Assist installed: Alt+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.

//   - In VS Code, CLion, etc.: Ctrl+Click can follow symbols inside comments.

enum ImGuiDir : int;                // -> enum ImGuiDir              // Enum: A cardinal direction (Left, Right, Up, Down)

enum ImGuiKey : int;                // -> enum ImGuiKey              // Enum: A key identifier (ImGuiKey_XXX or ImGuiMod_XXX value)

enum ImGuiMouseSource : int;        // -> enum ImGuiMouseSource      // Enum; A mouse input source identifier (Mouse, TouchScreen, Pen)

enum ImGuiSortDirection : ImU8;     // -> enum ImGuiSortDirection    // Enum: A sorting direction (ascending or descending)

typedef int ImGuiCol;               // -> enum ImGuiCol_             // Enum: A color identifier for styling

typedef int ImGuiCond;              // -> enum ImGuiCond_            // Enum: A condition for many Set*() functions

typedef int ImGuiDataType;          // -> enum ImGuiDataType_        // Enum: A primary data type

typedef int ImGuiMouseButton;       // -> enum ImGuiMouseButton_     // Enum: A mouse button identifier (0=left, 1=right, 2=middle)

typedef int ImGuiMouseCursor;       // -> enum ImGuiMouseCursor_     // Enum: A mouse cursor shape

typedef int ImGuiStyleVar;          // -> enum ImGuiStyleVar_        // Enum: A variable identifier for styling

typedef int ImGuiTableBgTarget;     // -> enum ImGuiTableBgTarget_   // Enum: A color target for TableSetBgColor()

// Flags (declared as int to allow using as flags without overhead, and to not pollute the top of this file)

// - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!

//   - In Visual Studio: Ctrl+Comma ("Edit.GoToAll") can follow symbols inside comments, whereas Ctrl+F12 ("Edit.GoToImplementation") cannot.

//   - In Visual Studio w/ Visual Assist installed: Alt+G ("VAssistX.GoToImplementation") can also follow symbols inside comments.

//   - In VS Code, CLion, etc.: Ctrl+Click can follow symbols inside comments.

typedef int ImDrawFlags;            // -> enum ImDrawFlags_          // Flags: for ImDrawList functions

typedef int ImDrawListFlags;        // -> enum ImDrawListFlags_      // Flags: for ImDrawList instance

typedef int ImDrawTextFlags;        // -> enum ImDrawTextFlags_      // Internal, do not use!

typedef int ImFontFlags;            // -> enum ImFontFlags_          // Flags: for ImFont

typedef int ImFontAtlasFlags;       // -> enum ImFontAtlasFlags_     // Flags: for ImFontAtlas

typedef int ImGuiBackendFlags;      // -> enum ImGuiBackendFlags_    // Flags: for io.BackendFlags

typedef int ImGuiButtonFlags;       // -> enum ImGuiButtonFlags_     // Flags: for InvisibleButton()

typedef int ImGuiChildFlags;        // -> enum ImGuiChildFlags_      // Flags: for BeginChild()

typedef int ImGuiColorEditFlags;    // -> enum ImGuiColorEditFlags_  // Flags: for ColorEdit4(), ColorPicker4() etc.

typedef int ImGuiConfigFlags;       // -> enum ImGuiConfigFlags_     // Flags: for io.ConfigFlags

typedef int ImGuiComboFlags;        // -> enum ImGuiComboFlags_      // Flags: for BeginCombo()

typedef int ImGuiDockNodeFlags;     // -> enum ImGuiDockNodeFlags_   // Flags: for DockSpace()

typedef int ImGuiDragDropFlags;     // -> enum ImGuiDragDropFlags_   // Flags: for BeginDragDropSource(), AcceptDragDropPayload()

typedef int ImGuiFocusedFlags;      // -> enum ImGuiFocusedFlags_    // Flags: for IsWindowFocused()

typedef int ImGuiHoveredFlags;      // -> enum ImGuiHoveredFlags_    // Flags: for IsItemHovered(), IsWindowHovered() etc.

typedef int ImGuiInputFlags;        // -> enum ImGuiInputFlags_      // Flags: for Shortcut(), SetNextItemShortcut()

typedef int ImGuiInputTextFlags;    // -> enum ImGuiInputTextFlags_  // Flags: for InputText(), InputTextMultiline()

typedef int ImGuiItemFlags;         // -> enum ImGuiItemFlags_       // Flags: for PushItemFlag(), shared by all items

typedef int ImGuiKeyChord;          // -> ImGuiKey | ImGuiMod_XXX    // Flags: for IsKeyChordPressed(), Shortcut() etc. an ImGuiKey optionally OR-ed with one or more ImGuiMod_XXX values.

typedef int ImGuiListClipperFlags;  // -> enum ImGuiListClipperFlags_// Flags: for ImGuiListClipper

typedef int ImGuiPopupFlags;        // -> enum ImGuiPopupFlags_      // Flags: for OpenPopup*(), BeginPopupContext*(), IsPopupOpen()

typedef int ImGuiMultiSelectFlags;  // -> enum ImGuiMultiSelectFlags_// Flags: for BeginMultiSelect()

typedef int ImGuiSelectableFlags;   // -> enum ImGuiSelectableFlags_ // Flags: for Selectable()

typedef int ImGuiSliderFlags;       // -> enum ImGuiSliderFlags_     // Flags: for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.

typedef int ImGuiTabBarFlags;       // -> enum ImGuiTabBarFlags_     // Flags: for BeginTabBar()

typedef int ImGuiTabItemFlags;      // -> enum ImGuiTabItemFlags_    // Flags: for BeginTabItem()

typedef int ImGuiTableFlags;        // -> enum ImGuiTableFlags_      // Flags: For BeginTable()

typedef int ImGuiTableColumnFlags;  // -> enum ImGuiTableColumnFlags_// Flags: For TableSetupColumn()

typedef int ImGuiTableRowFlags;     // -> enum ImGuiTableRowFlags_   // Flags: For TableNextRow()

typedef int ImGuiTreeNodeFlags;     // -> enum ImGuiTreeNodeFlags_   // Flags: for TreeNode(), TreeNodeEx(), CollapsingHeader()

typedef int ImGuiViewportFlags;     // -> enum ImGuiViewportFlags_   // Flags: for ImGuiViewport

typedef int ImGuiWindowFlags;       // -> enum ImGuiWindowFlags_     // Flags: for Begin(), BeginChild()

// Character types

// (we generally use UTF-8 encoded string in the API. This is storage specifically for a decoded character used for keyboard input and display)

typedef unsigned int ImWchar32;     // A single decoded U32 character/code point. We encode them as multi bytes UTF-8 when used in strings.

typedef unsigned short ImWchar16;   // A single decoded U16 character/code point. We encode them as multi bytes UTF-8 when used in strings.

#ifdef IMGUI_USE_WCHAR32            // ImWchar [configurable type: override in imconfig.h with '#define IMGUI_USE_WCHAR32' to support Unicode planes 1-16]

typedef ImWchar32 ImWchar;

#else

typedef ImWchar16 ImWchar;

#endif

// Multi-Selection item index or identifier when using BeginMultiSelect()

// - Used by SetNextItemSelectionUserData() + and inside ImGuiMultiSelectIO structure.

// - Most users are likely to use this store an item INDEX but this may be used to store a POINTER/ID as well. Read comments near ImGuiMultiSelectIO for details.

typedef ImS64 ImGuiSelectionUserData;

// Callback and functions types

typedef int     (*ImGuiInputTextCallback)(ImGuiInputTextCallbackData* data);    // Callback function for ImGui::InputText()

typedef void    (*ImGuiSizeCallback)(ImGuiSizeCallbackData* data);              // Callback function for ImGui::SetNextWindowSizeConstraints()

typedef void*   (*ImGuiMemAllocFunc)(size_t sz, void* user_data);               // Function signature for ImGui::SetAllocatorFunctions()

typedef void    (*ImGuiMemFreeFunc)(void* ptr, void* user_data);                // Function signature for ImGui::SetAllocatorFunctions()

// ImVec2: 2D vector used to store positions, sizes etc. [Compile-time configurable type]

// - This is a frequently used type in the API. Consider using IM_VEC2_CLASS_EXTRA to create implicit cast from/to our preferred type.

// - Add '#define IMGUI_DEFINE_MATH_OPERATORS' before including this file (or in imconfig.h) to access courtesy maths operators for ImVec2 and ImVec4.

IM_MSVC_RUNTIME_CHECKS_OFF

struct ImVec2

{

    float                                   x, y;

    constexpr ImVec2()                      : x(0.0f), y(0.0f) { }

    constexpr ImVec2(float _x, float _y)    : x(_x), y(_y) { }

    float& operator[] (size_t idx)          { IM_ASSERT(idx == 0 || idx == 1); return ((float*)(void*)(char*)this)[idx]; } // We very rarely use this [] operator, so the assert overhead is fine.

    float  operator[] (size_t idx) const    { IM_ASSERT(idx == 0 || idx == 1); return ((const float*)(const void*)(const char*)this)[idx]; }

#ifdef IM_VEC2_CLASS_EXTRA

    IM_VEC2_CLASS_EXTRA     // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec2.

#endif

};

// ImVec4: 4D vector used to store clipping rectangles, colors etc. [Compile-time configurable type]

struct ImVec4

{

    float                                                     x, y, z, w;

    constexpr ImVec4()                                        : x(0.0f), y(0.0f), z(0.0f), w(0.0f) { }

    constexpr ImVec4(float _x, float _y, float _z, float _w)  : x(_x), y(_y), z(_z), w(_w) { }

#ifdef IM_VEC4_CLASS_EXTRA

    IM_VEC4_CLASS_EXTRA     // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec4.

#endif

};

IM_MSVC_RUNTIME_CHECKS_RESTORE

//-----------------------------------------------------------------------------

// [SECTION] Texture identifiers (ImTextureID, ImTextureRef)

//-----------------------------------------------------------------------------

// ImTextureID = backend specific, low-level identifier for a texture uploaded in GPU/graphics system.

// [Compile-time configurable type]

// - When a Rendered Backend creates a texture, it store its native identifier into a ImTextureID value.

//   (e.g. Used by DX11 backend to a `ID3D11ShaderResourceView*`; Used by OpenGL backends to store `GLuint`;

//         Used by SDLGPU backend to store a `SDL_GPUTextureSamplerBinding*`, etc.).

// - User may submit their own textures to e.g. ImGui::Image() function by passing this value.

// - During the rendering loop, the Renderer Backend retrieve the ImTextureID, which stored inside a

//   ImTextureRef, which is stored inside a ImDrawCmd.

// - Compile-time type configuration:

//   - To use something other than a 64-bit value: add '#define ImTextureID MyTextureType*' in your imconfig.h file.

//   - This can be whatever to you want it to be! read the FAQ entry about textures for details.

//   - You may decide to store a higher-level structure containing texture, sampler, shader etc. with various

//     constructors if you like. You will need to implement ==/!= operators.

// History:

// - In v1.91.4 (2024/10/08): the default type for ImTextureID was changed from 'void*' to 'ImU64'. This allowed backends requiring 64-bit worth of data to build on 32-bit architectures. Use intermediary intptr_t cast and read FAQ if you have casting warnings.

// - In v1.92.0 (2025/06/11): added ImTextureRef which carry either a ImTextureID either a pointer to internal texture atlas. All user facing functions taking ImTextureID changed to ImTextureRef

#ifndef ImTextureID

typedef ImU64 ImTextureID;      // Default: store up to 64-bits (any pointer or integer). A majority of backends are ok with that.

#endif

// Define this if you need to change the invalid value for your backend.

// - If your backend is using ImTextureID to store an index/offset and you need 0 to be valid, You can add '#define ImTextureID_Invalid ((ImTextureID)-1)' in your imconfig.h file.

// - From 2026/03/12 to 2026/03/19 we experimented with changing to default to -1, but I worried it would cause too many issues in third-party code so it was reverted.

#ifndef ImTextureID_Invalid

#define ImTextureID_Invalid     ((ImTextureID)0)

#endif

// ImTextureRef = higher-level identifier for a texture. Store a ImTextureID _or_ a ImTextureData*.

// The identifier is valid even before the texture has been uploaded to the GPU/graphics system.

// This is what gets passed to functions such as `ImGui::Image()`, `ImDrawList::AddImage()`.

// This is what gets stored in draw commands (`ImDrawCmd`) to identify a texture during rendering.

// - When a texture is created by user code (e.g. custom images), we directly store the low-level ImTextureID.

//   Because of this, when displaying your own texture you are likely to ever only manage ImTextureID values on your side.

// - When a texture is created by the backend, we stores a ImTextureData* which becomes an indirection

//   to extract the ImTextureID value during rendering, after texture upload has happened.

// - To create a ImTextureRef from a ImTextureData you can use ImTextureData::GetTexRef().

//   We intentionally do not provide an ImTextureRef constructor for this: we don't expect this

//   to be frequently useful to the end-user, and it would be erroneously called by many legacy code.

// - If you want to bind the current atlas when using custom rectangle, you can use io.Fonts->TexRef.

// - Binding generators for languages such as C (which don't have constructors), should provide a helper, e.g.

//      inline ImTextureRef ImTextureRefFromID(ImTextureID tex_id) { ImTextureRef tex_ref = { ._TexData = NULL, .TexID = tex_id }; return tex_ref; }

// In 1.92 we changed most drawing functions using ImTextureID to use ImTextureRef.

// We intentionally do not provide an implicit ImTextureRef -> ImTextureID cast operator because it is technically lossy to convert ImTextureRef to ImTextureID before rendering.

IM_MSVC_RUNTIME_CHECKS_OFF

struct ImTextureRef

{

    ImTextureRef()                          { _TexData = NULL; _TexID = ImTextureID_Invalid; }

    ImTextureRef(ImTextureID tex_id)        { _TexData = NULL; _TexID = tex_id; }

#if !defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS) && !defined(ImTextureID)

    ImTextureRef(void* tex_id)              { _TexData = NULL; _TexID = (ImTextureID)(size_t)tex_id; }  // For legacy backends casting to ImTextureID

#endif

    inline ImTextureID  GetTexID() const;   // == (_TexData ? _TexData->TexID : _TexID) // Implemented below in the file.

    // Members (either are set, never both!)

    ImTextureData*      _TexData;           //      A texture, generally owned by a ImFontAtlas. Will convert to ImTextureID during render loop, after texture has been uploaded.

    ImTextureID         _TexID;             // _OR_ Low-level backend texture identifier, if already uploaded or created by user/app. Generally provided to e.g. ImGui::Image() calls.

};

IM_MSVC_RUNTIME_CHECKS_RESTORE

//-----------------------------------------------------------------------------

// [SECTION] Dear ImGui end-user API functions

// (Note that ImGui:: being a namespace, you can add extra ImGui:: functions in your own separate file. Please don't modify imgui source files!)

//-----------------------------------------------------------------------------

namespace ImGui

{

    // Context creation and access

    // - Each context create its own ImFontAtlas by default. You may instance one yourself and pass it to CreateContext() to share a font atlas between contexts.

    // - DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()

    //   for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for details.

    IMGUI_API ImGuiContext* CreateContext(ImFontAtlas* shared_font_atlas = NULL);

    IMGUI_API void          DestroyContext(ImGuiContext* ctx = NULL);   // NULL = destroy current context

    IMGUI_API ImGuiContext* GetCurrentContext();

    IMGUI_API void          SetCurrentContext(ImGuiContext* ctx);

    // Main

    IMGUI_API ImGuiIO&      GetIO();                                    // access the ImGuiIO structure (mouse/keyboard/gamepad inputs, time, various configuration options/flags)

    IMGUI_API ImGuiPlatformIO& GetPlatformIO();                         // access the ImGuiPlatformIO structure (mostly hooks/functions to connect to platform/renderer and OS Clipboard, IME etc.)

    IMGUI_API ImGuiStyle&   GetStyle();                                 // access the Style structure (colors, sizes). Always use PushStyleColor(), PushStyleVar() to modify style mid-frame!

    IMGUI_API void          NewFrame();                                 // start a new Dear ImGui frame, you can submit any command from this point until Render()/EndFrame().

    IMGUI_API void          EndFrame();                                 // ends the Dear ImGui frame. automatically called by Render(). If you don't need to render data (skipping rendering) you may call EndFrame() without Render()... but you'll have wasted CPU already! If you don't need to render, better to not create any windows and not call NewFrame() at all!

    IMGUI_API void          Render();                                   // ends the Dear ImGui frame, finalize the draw data. You can then get call GetDrawData().

    IMGUI_API ImDrawData*   GetDrawData();                              // valid after Render() and until the next call to NewFrame(). Call ImGui_ImplXXXX_RenderDrawData() function in your Renderer Backend to render.

    // Demo, Debug, Information

    IMGUI_API void          ShowDemoWindow(bool* p_open = NULL);        // create Demo window. demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!

    IMGUI_API void          ShowMetricsWindow(bool* p_open = NULL);     // create Metrics/Debugger window. display Dear ImGui internals: windows, draw commands, various internal state, etc.

    IMGUI_API void          ShowDebugLogWindow(bool* p_open = NULL);    // create Debug Log window. display a simplified log of important dear imgui events.

    IMGUI_API void          ShowIDStackToolWindow(bool* p_open = NULL); // create Stack Tool window. hover items with mouse to query information about the source of their unique ID.

    IMGUI_API void          ShowAboutWindow(bool* p_open = NULL);       // create About window. display Dear ImGui version, credits and build/system information.

    IMGUI_API void          ShowStyleEditor(ImGuiStyle* ref = NULL);    // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)

    IMGUI_API bool          ShowStyleSelector(const char* label);       // add style selector block (not a window), essentially a combo listing the default styles.

    IMGUI_API void          ShowFontSelector(const char* label);        // add font selector block (not a window), essentially a combo listing the loaded fonts.

    IMGUI_API void          ShowUserGuide();                            // add basic help/info block (not a window): how to manipulate ImGui as an end-user (mouse/keyboard controls).

    IMGUI_API const char*   GetVersion();                               // get the compiled version string e.g. "1.80 WIP" (essentially the value for IMGUI_VERSION from the compiled version of imgui.cpp)

    // Styles

    IMGUI_API void          StyleColorsDark(ImGuiStyle* dst = NULL);    // new, recommended style (default)

    IMGUI_API void          StyleColorsLight(ImGuiStyle* dst = NULL);   // best used with borders and a custom, thicker font

    IMGUI_API void          StyleColorsClassic(ImGuiStyle* dst = NULL); // classic imgui style

    // Windows

    // - Begin() = push window to the stack and start appending to it. End() = pop window from the stack.

    // - Passing 'bool* p_open != NULL' shows a window-closing widget in the upper-right corner of the window,

    //   which clicking will set the boolean to false when clicked.

    // - You may append multiple times to the same window during the same frame by calling Begin()/End() pairs multiple times.

    //   Some information such as 'flags' or 'p_open' will only be considered by the first call to Begin().

    // - Begin() return false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting

    //   anything to the window. Always call a matching End() for each Begin() call, regardless of its return value!

    //   [Important: due to legacy reason, Begin/End and BeginChild/EndChild are inconsistent with all other functions

    //    such as BeginMenu/EndMenu, BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding

    //    BeginXXX function returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]

    // - Note that the bottom of window stack always contains a window called "Debug".

    IMGUI_API bool          Begin(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);

    IMGUI_API void          End();

    // Child Windows

    // - Use child windows to begin into a self-contained independent scrolling/clipping regions within a host window. Child windows can embed their own child.

    // - Before 1.90 (November 2023), the "ImGuiChildFlags child_flags = 0" parameter was "bool border = false".

    //   This API is backward compatible with old code, as we guarantee that ImGuiChildFlags_Borders == true.

    //   Consider updating your old code:

    //      BeginChild("Name", size, false)   -> Begin("Name", size, 0); or Begin("Name", size, ImGuiChildFlags_None);

    //      BeginChild("Name", size, true)    -> Begin("Name", size, ImGuiChildFlags_Borders);

    // - Manual sizing (each axis can use a different setting e.g. ImVec2(0.0f, 400.0f)):

    //     == 0.0f: use remaining parent window size for this axis.

    //      > 0.0f: use specified size for this axis.

    //      < 0.0f: right/bottom-align to specified distance from available content boundaries.

    // - Specifying ImGuiChildFlags_AutoResizeX or ImGuiChildFlags_AutoResizeY makes the sizing automatic based on child contents.

    //   Combining both ImGuiChildFlags_AutoResizeX _and_ ImGuiChildFlags_AutoResizeY defeats purpose of a scrolling region and is NOT recommended.

    // - BeginChild() returns false to indicate the window is collapsed or fully clipped, so you may early out and omit submitting

    //   anything to the window. Always call a matching EndChild() for each BeginChild() call, regardless of its return value.

    //   [Important: due to legacy reason, Begin/End and BeginChild/EndChild are inconsistent with all other functions

    //    such as BeginMenu/EndMenu, BeginPopup/EndPopup, etc. where the EndXXX call should only be called if the corresponding

    //    BeginXXX function returned true. Begin and BeginChild are the only odd ones out. Will be fixed in a future update.]

    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0, 0), ImGuiChildFlags child_flags = 0, ImGuiWindowFlags window_flags = 0);

    IMGUI_API bool          BeginChild(ImGuiID id, const ImVec2& size = ImVec2(0, 0), ImGuiChildFlags child_flags = 0, ImGuiWindowFlags window_flags = 0);

    IMGUI_API void          EndChild();

    // Windows Utilities

    // - 'current window' = the window we are appending into while inside a Begin()/End() block. 'next window' = next window we will Begin() into.

    IMGUI_API bool          IsWindowAppearing();

    IMGUI_API bool          IsWindowCollapsed();

    IMGUI_API bool          IsWindowFocused(ImGuiFocusedFlags flags=0); // is current window focused? or its root/child, depending on flags. see flags for options.

    IMGUI_API bool          IsWindowHovered(ImGuiHoveredFlags flags=0); // is current window hovered and hoverable (e.g. not blocked by a popup/modal)? See ImGuiHoveredFlags_ for options. IMPORTANT: If you are trying to check whether your mouse should be dispatched to Dear ImGui or to your underlying app, you should not use this function! Use the 'io.WantCaptureMouse' boolean for that! Refer to FAQ entry "How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?" for details.

    IMGUI_API ImDrawList*   GetWindowDrawList();                        // get draw list associated to the current window, to append your own drawing primitives

    IMGUI_API float         GetWindowDpiScale();                        // get DPI scale currently associated to the current window's viewport.

    IMGUI_API ImVec2        GetWindowPos();                             // get current window position in screen space (IT IS UNLIKELY YOU EVER NEED TO USE THIS. Consider always using GetCursorScreenPos() and GetContentRegionAvail() instead)

    IMGUI_API ImVec2        GetWindowSize();                            // get current window size (IT IS UNLIKELY YOU EVER NEED TO USE THIS. Consider always using GetCursorScreenPos() and GetContentRegionAvail() instead)

    IMGUI_API float         GetWindowWidth();                           // get current window width (IT IS UNLIKELY YOU EVER NEED TO USE THIS). Shortcut for GetWindowSize().x.

    IMGUI_API float         GetWindowHeight();                          // get current window height (IT IS UNLIKELY YOU EVER NEED TO USE THIS). Shortcut for GetWindowSize().y.

    IMGUI_API ImGuiViewport*GetWindowViewport();                        // get viewport currently associated to the current window.

    // Window manipulation

    // - Prefer using SetNextXXX functions (before Begin) rather that SetXXX functions (after Begin).

    IMGUI_API void          SetNextWindowPos(const ImVec2& pos, ImGuiCond cond = 0, const ImVec2& pivot = ImVec2(0, 0)); // set next window position. call before Begin(). use pivot=(0.5f,0.5f) to center on given point, etc.

    IMGUI_API void          SetNextWindowSize(const ImVec2& size, ImGuiCond cond = 0);                  // set next window size. set axis to 0.0f to force an auto-fit on this axis. call before Begin()

    IMGUI_API void          SetNextWindowSizeConstraints(const ImVec2& size_min, const ImVec2& size_max, ImGuiSizeCallback custom_callback = NULL, void* custom_callback_data = NULL); // set next window size limits. use 0.0f or FLT_MAX if you don't want limits. Use -1 for both min and max of same axis to preserve current size (which itself is a constraint). Use callback to apply non-trivial programmatic constraints.

    IMGUI_API void          SetNextWindowContentSize(const ImVec2& size);                               // set next window content size (~ scrollable client area, which enforce the range of scrollbars). Not including window decorations (title bar, menu bar, etc.) nor WindowPadding. set an axis to 0.0f to leave it automatic. call before Begin()

    IMGUI_API void          SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                 // set next window collapsed state. call before Begin()

    IMGUI_API void          SetNextWindowFocus();                                                       // set next window to be focused / top-most. call before Begin()

    IMGUI_API void          SetNextWindowScroll(const ImVec2& scroll);                                  // set next window scrolling value (use < 0.0f to not affect a given axis).

    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily override the Alpha component of ImGuiCol_WindowBg/ChildBg/PopupBg. you may also use ImGuiWindowFlags_NoBackground.

    IMGUI_API void          SetNextWindowViewport(ImGuiID viewport_id);                                 // set next window viewport

    IMGUI_API void          SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0);                        // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.

    IMGUI_API void          SetWindowSize(const ImVec2& size, ImGuiCond cond = 0);                      // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0, 0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.

    IMGUI_API void          SetWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                     // (not recommended) set current window collapsed state. prefer using SetNextWindowCollapsed().

    IMGUI_API void          SetWindowFocus();                                                           // (not recommended) set current window to be focused / top-most. prefer using SetNextWindowFocus().

    IMGUI_API void          SetWindowPos(const char* name, const ImVec2& pos, ImGuiCond cond = 0);      // set named window position.

    IMGUI_API void          SetWindowSize(const char* name, const ImVec2& size, ImGuiCond cond = 0);    // set named window size. set axis to 0.0f to force an auto-fit on this axis.

    IMGUI_API void          SetWindowCollapsed(const char* name, bool collapsed, ImGuiCond cond = 0);   // set named window collapsed state

    IMGUI_API void          SetWindowFocus(const char* name);                                           // set named window to be focused / top-most. use NULL to remove focus.

    // Windows Scrolling

    // - Any change of Scroll will be applied at the beginning of next frame in the first call to Begin().

    // - You may instead use SetNextWindowScroll() prior to calling Begin() to avoid this delay, as an alternative to using SetScrollX()/SetScrollY().

    IMGUI_API float         GetScrollX();                                                   // get scrolling amount [0 .. GetScrollMaxX()]

    IMGUI_API float         GetScrollY();                                                   // get scrolling amount [0 .. GetScrollMaxY()]

    IMGUI_API void          SetScrollX(float scroll_x);                                     // set scrolling amount [0 .. GetScrollMaxX()]

    IMGUI_API void          SetScrollY(float scroll_y);                                     // set scrolling amount [0 .. GetScrollMaxY()]

    IMGUI_API float         GetScrollMaxX();                                                // get maximum scrolling amount ~~ ContentSize.x - WindowSize.x - DecorationsSize.x

    IMGUI_API float         GetScrollMaxY();                                                // get maximum scrolling amount ~~ ContentSize.y - WindowSize.y - DecorationsSize.y

    IMGUI_API void          SetScrollHereX(float center_x_ratio = 0.5f);                    // adjust scrolling amount to make current cursor position visible. center_x_ratio=0.0: left, 0.5: center, 1.0: right. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.

    IMGUI_API void          SetScrollHereY(float center_y_ratio = 0.5f);                    // adjust scrolling amount to make current cursor position visible. center_y_ratio=0.0: top, 0.5: center, 1.0: bottom. When using to make a "default/current item" visible, consider using SetItemDefaultFocus() instead.

    IMGUI_API void          SetScrollFromPosX(float local_x, float center_x_ratio = 0.5f);  // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.

    IMGUI_API void          SetScrollFromPosY(float local_y, float center_y_ratio = 0.5f);  // adjust scrolling amount to make given position visible. Generally GetCursorStartPos() + offset to compute a valid position.

    // Parameters stacks (font)

    //  - PushFont(font, 0.0f)                       // Change font and keep current size

    //  - PushFont(NULL, 20.0f)                      // Keep font and change current size

    //  - PushFont(font, 20.0f)                      // Change font and set size to 20.0f

    //  - PushFont(font, style.FontSizeBase * 2.0f)  // Change font and set size to be twice bigger than current size.

    //  - PushFont(font, font->LegacySize)           // Change font and set size to size passed to AddFontXXX() function. Same as pre-1.92 behavior.

    // *IMPORTANT* before 1.92, fonts had a single size. They can now be dynamically be adjusted.

    //  - In 1.92 we have REMOVED the single parameter version of PushFont() because it seems like the easiest way to provide an error-proof transition.

    //  - PushFont(font) before 1.92 = PushFont(font, font->LegacySize) after 1.92          // Use default font size as passed to AddFontXXX() function.

    // *IMPORTANT* global scale factors are applied over the provided size.

    //  - Global scale factors are: 'style.FontScaleMain', 'style.FontScaleDpi' and maybe more.

    // -  If you want to apply a factor to the _current_ font size:

    //  - CORRECT:   PushFont(NULL, style.FontSizeBase)         // use current unscaled size    == does nothing

    //  - CORRECT:   PushFont(NULL, style.FontSizeBase * 2.0f)  // use current unscaled size x2 == make text twice bigger

    //  - INCORRECT: PushFont(NULL, GetFontSize())              // INCORRECT! using size after global factors already applied == GLOBAL SCALING FACTORS WILL APPLY TWICE!

    //  - INCORRECT: PushFont(NULL, GetFontSize() * 2.0f)       // INCORRECT! using size after global factors already applied == GLOBAL SCALING FACTORS WILL APPLY TWICE!

    IMGUI_API void          PushFont(ImFont* font, float font_size_base_unscaled);          // Use NULL as a shortcut to keep current font. Use 0.0f to keep current size.

    IMGUI_API void          PopFont();

    IMGUI_API ImFont*       GetFont();                                                      // get current font

    IMGUI_API float         GetFontSize();                                                  // get current scaled font size (= height in pixels). AFTER global scale factors applied. *IMPORTANT* DO NOT PASS THIS VALUE TO PushFont()! Use ImGui::GetStyle().FontSizeBase to get value before global scale factors.

    IMGUI_API ImFontBaked*  GetFontBaked();                                                 // get current font bound at current size // == GetFont()->GetFontBaked(GetFontSize())

    // Parameters stacks (shared)

    IMGUI_API void          PushStyleColor(ImGuiCol idx, ImU32 col);                        // modify a style color. always use this if you modify the style after NewFrame().

    IMGUI_API void          PushStyleColor(ImGuiCol idx, const ImVec4& col);

    IMGUI_API void          PopStyleColor(int count = 1);

    IMGUI_API void          PushStyleVar(ImGuiStyleVar idx, float val);                     // modify a style float variable. always use this if you modify the style after NewFrame()!

    IMGUI_API void          PushStyleVar(ImGuiStyleVar idx, const ImVec2& val);             // modify a style ImVec2 variable. "

    IMGUI_API void          PushStyleVarX(ImGuiStyleVar idx, float val_x);                  // modify X component of a style ImVec2 variable. "

    IMGUI_API void          PushStyleVarY(ImGuiStyleVar idx, float val_y);                  // modify Y component of a style ImVec2 variable. "

    IMGUI_API void          PopStyleVar(int count = 1);

    IMGUI_API void          PushItemFlag(ImGuiItemFlags option, bool enabled);              // modify specified shared item flag, e.g. PushItemFlag(ImGuiItemFlags_NoTabStop, true)

    IMGUI_API void          PopItemFlag();

    // Parameters stacks (current window)

    IMGUI_API void          PushItemWidth(float item_width);                                // push width of items for common large "item+label" widgets. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side).

    IMGUI_API void          PopItemWidth();

    IMGUI_API void          SetNextItemWidth(float item_width);                             // set width of the _next_ common large "item+label" widget. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side)

    IMGUI_API float         CalcItemWidth();                                                // width of item given pushed settings and current cursor position. NOT necessarily the width of last item unlike most 'Item' functions.

    IMGUI_API void          PushTextWrapPos(float wrap_local_pos_x = 0.0f);                 // push word-wrapping position for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space

    IMGUI_API void          PopTextWrapPos();

    // Style read access

    // - Use the ShowStyleEditor() function to interactively see/edit the colors.

    IMGUI_API ImVec2        GetFontTexUvWhitePixel();                                       // get UV coordinate for a white pixel, useful to draw custom shapes via the ImDrawList API

    IMGUI_API ImU32         GetColorU32(ImGuiCol idx, float alpha_mul = 1.0f);              // retrieve given style color with style alpha applied and optional extra alpha multiplier, packed as a 32-bit value suitable for ImDrawList

    IMGUI_API ImU32         GetColorU32(const ImVec4& col);                                 // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList

    IMGUI_API ImU32         GetColorU32(ImU32 col, float alpha_mul = 1.0f);                 // retrieve given color with style alpha applied, packed as a 32-bit value suitable for ImDrawList

    IMGUI_API const ImVec4& GetStyleColorVec4(ImGuiCol idx);                                // retrieve style color as stored in ImGuiStyle structure. use to feed back into PushStyleColor(), otherwise use GetColorU32() to get style color with style alpha baked in.

    // Layout cursor positioning

    // - By "cursor" we mean the current output position.

    // - The typical widget behavior is to output themselves at the current cursor position, then move the cursor one line down.

    // - You can call SameLine() between widgets to undo the last carriage return and output at the right of the preceding widget.

    // - YOU CAN DO 99% OF WHAT YOU NEED WITH ONLY GetCursorScreenPos() and GetContentRegionAvail().

    // - Attention! We currently have inconsistencies between window-local and absolute positions we will aim to fix with future API:

    //    - Absolute coordinate:        GetCursorScreenPos(), SetCursorScreenPos(), all ImDrawList:: functions. -> this is the preferred way forward.

    //    - Window-local coordinates:   SameLine(offset), GetCursorPos(), SetCursorPos(), GetCursorStartPos(), PushTextWrapPos()

    //    - Window-local coordinates:   GetContentRegionMax(), GetWindowContentRegionMin(), GetWindowContentRegionMax() --> all obsoleted. YOU DON'T NEED THEM.

    // - GetCursorScreenPos() = GetCursorPos() + GetWindowPos(). GetWindowPos() is almost only ever useful to convert from window-local to absolute coordinates. Try not to use it.

    IMGUI_API ImVec2        GetCursorScreenPos();                                           // cursor position, absolute coordinates. THIS IS YOUR BEST FRIEND (prefer using this rather than GetCursorPos(), also more useful to work with ImDrawList API).

    IMGUI_API void          SetCursorScreenPos(const ImVec2& pos);                          // cursor position, absolute coordinates. THIS IS YOUR BEST FRIEND.

    IMGUI_API ImVec2        GetContentRegionAvail();                                        // available space from current position. THIS IS YOUR BEST FRIEND.

    IMGUI_API ImVec2        GetCursorPos();                                                 // [window-local] cursor position in window-local coordinates. This is not your best friend.

    IMGUI_API float         GetCursorPosX();                                                // [window-local] "

    IMGUI_API float         GetCursorPosY();                                                // [window-local] "

    IMGUI_API void          SetCursorPos(const ImVec2& local_pos);                          // [window-local] "

    IMGUI_API void          SetCursorPosX(float local_x);                                   // [window-local] "

    IMGUI_API void          SetCursorPosY(float local_y);                                   // [window-local] "

    IMGUI_API ImVec2        GetCursorStartPos();                                            // [window-local] initial cursor position, in window-local coordinates. Call GetCursorScreenPos() after Begin() to get the absolute coordinates version.

    // Other layout functions

    IMGUI_API void          Separator();                                                    // separator, generally horizontal. inside a menu bar or in horizontal layout mode, this becomes a vertical separator.

    IMGUI_API void          SameLine(float offset_from_start_x=0.0f, float spacing=-1.0f);  // call between widgets or groups to layout them horizontally. X position given in window coordinates.

    IMGUI_API void          NewLine();                                                      // undo a SameLine() or force a new line when in a horizontal-layout context.

    IMGUI_API void          Spacing();                                                      // add vertical spacing.

    IMGUI_API void          Dummy(const ImVec2& size);                                      // add a dummy item of given size. unlike InvisibleButton(), Dummy() won't take the mouse click or be navigable into.

    IMGUI_API void          Indent(float indent_w = 0.0f);                                  // move content position toward the right, by indent_w, or style.IndentSpacing if indent_w <= 0

    IMGUI_API void          Unindent(float indent_w = 0.0f);                                // move content position back to the left, by indent_w, or style.IndentSpacing if indent_w <= 0

    IMGUI_API void          BeginGroup();                                                   // lock horizontal starting position

    IMGUI_API void          EndGroup();                                                     // unlock horizontal starting position + capture the whole group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine() on whole group, etc.)

    IMGUI_API void          AlignTextToFramePadding();                                      // vertically align upcoming text baseline to FramePadding.y so that it will align properly to regularly framed items (call if you have text on a line before a framed item)

    IMGUI_API float         GetTextLineHeight();                                            // ~ FontSize

    IMGUI_API float         GetTextLineHeightWithSpacing();                                 // ~ FontSize + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of text)

    IMGUI_API float         GetFrameHeight();                                               // ~ FontSize + style.FramePadding.y * 2

    IMGUI_API float         GetFrameHeightWithSpacing();                                    // ~ FontSize + style.FramePadding.y * 2 + style.ItemSpacing.y (distance in pixels between 2 consecutive lines of framed widgets)

    // ID stack/scopes

    // Read the FAQ (docs/FAQ.md or http://dearimgui.com/faq) for more details about how ID are handled in dear imgui.

    // - Those questions are answered and impacted by understanding of the ID stack system:

    //   - "Q: Why is my widget not reacting when I click on it?"

    //   - "Q: How can I have widgets with an empty label?"

    //   - "Q: How can I have multiple widgets with the same label?"

    // - Short version: ID are hashes of the entire ID stack. If you are creating widgets in a loop you most likely

    //   want to push a unique identifier (e.g. object pointer, loop index) to uniquely differentiate them.

    // - You can also use the "Label##foobar" syntax within widget label to distinguish them from each others.

    // - In this header file we use the "label"/"name" terminology to denote a string that will be displayed + used as an ID,

    //   whereas "str_id" denote a string that is only used as an ID and not normally displayed.

    IMGUI_API void          PushID(const char* str_id);                                     // push string into the ID stack (will hash string).

    IMGUI_API void          PushID(const char* str_id_begin, const char* str_id_end);       // push string into the ID stack (will hash string).

    IMGUI_API void          PushID(const void* ptr_id);                                     // push pointer into the ID stack (will hash pointer).

    IMGUI_API void          PushID(int int_id);                                             // push integer into the ID stack (will hash integer).

    IMGUI_API void          PopID();                                                        // pop from the ID stack.

    IMGUI_API ImGuiID       GetID(const char* str_id);                                      // calculate unique ID (hash of whole ID stack + given parameter). e.g. if you want to query into ImGuiStorage yourself

    IMGUI_API ImGuiID       GetID(const char* str_id_begin, const char* str_id_end);

    IMGUI_API ImGuiID       GetID(const void* ptr_id);

    IMGUI_API ImGuiID       GetID(int int_id);

    // Widgets: Text

    // - Note that all functions taking format strings in the API may be passed ("%s", text) or ("%.*s", text_len, text): which will automatically bypass the formatter.

    IMGUI_API void          TextUnformatted(const char* text, const char* text_end = NULL); // raw text without formatting. Practically equivalent to 'Text("%s", text)' but doesn't require null terminated string if 'text_end' is specified.

    IMGUI_API void          Text(const char* fmt, ...)                                      IM_FMTARGS(1); // formatted text