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. Note that size constraints currently don't work on a docked window (when in 'docking' br

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 the use of "##" and "###" in identifiers to manipulate ID generation. This applies to all regular items as well. Read FAQ section "How can

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Helper

Helpers for internal use

Try to merge two last draw commands

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 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 initialize

API key: process a keyboard input

API paste: replace existing selection with passed-in text

returns number of contours

rects array must be big enough to accommodate all characters in the given ranges

note: this routine clips fills that extend off the edges... ideally this wouldn't happen, but it could happen if the truetype glyph bounding boxes are