API is designed this way to avoid exposing the 4K page size e.g. use with IsGlyphRangeUnused(0, 255)

Avoid naming collision with imgui_demo.cpp's HelpMarker() for unity builds.

[Optional] Notify the system of Tabs/Windows closure that happened outside the regular tab interface. If a tab has been closed programmatically (aka c

Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp

Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.

Sanitize format - Zero terminate so extra characters after format (e.g. "%f123") don't confuse atof/atoi - stb_sprintf.h supports several new modifier

Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than draw_data->DisplaySize, or if there

Save current stack sizes for later compare

Demonstrate old/legacy Columns API! [2020: Columns are under-featured and not maintained. Prefer using the more flexible and powerful BeginTable() API

Demonstrate creating a window which gets auto-resized according to its content.

Demonstrate creating a window with custom resize constraints.

Demonstrate using the low-level ImDrawList to draw custom shapes.

Demonstrate creating a window covering the entire screen/viewport

Demonstrate create a window with multiple child windows.

Demonstrate creating a simple log window with basic filtering.

Demonstrate/test rendering huge amount of text, and the incidence of clipping.

Demonstrate creating a "main" fullscreen menu bar and populating it. Note the difference between BeginMainMenuBar() and BeginMenuBar(): - BeginMenuBar

Demonstrate create a simple property editor.

Demonstrate creating a simple static window with no decoration + a context-menu to choose which corner of the screen to use.

Demonstrate using "##" and "###" in identifiers to manipulate ID generation. This apply to all regular items as well. Read FAQ section "How can I have

[Internal] Display details for a single font, called by ShowStyleEditor().

Helper

Helpers for internal use

FIXME: Move setting to IO structure

NB: It is illegal to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.

reset the state to default

API click: on mouse down, move the cursor to the clicked location, and reset the selection

API cut: delete selection

discard the oldest entry in the redo list--it's bad if this ever happens, but because undo & redo have to store the actual characters in different cas

API drag: on mouse drag, move the cursor and selection endpoint to the clicked location

API initialize

API key: process a keyboard input

API paste: replace existing selection with passed-in text

stb_textedit internally allows for a single undo record to do addition and deletion, but somehow, calling the stb_textedit_paste() function creates tw