Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.

Button to close a window

Close the popup we have begin-ed into.

CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag). This

A little colored square. Return true when clicked. FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the tool

Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593 also http://en.wikipedia.org/wiki/HSL_and_HSV

Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592 Optimized http://lolengine.net/blog/2013/01/13/fas

Edit colors components (each component in 0.0f..1.0f range). See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiCo

Note: ColorPicker4() only accesses 3 floats if ImGuiColorEditFlags_NoAlpha flag is set. (In C++ the 'float col[4]' notation for a function argument is

Note: only access 3 floats if ImGuiColorEditFlags_NoAlpha flag is set.

[2018-03: This is currently the only public API, while we are working on making BeginColumns/EndColumns user-facing]

Old API, prefer using BeginCombo() nowadays if you can.

User can input math operators (e.g. +100) to edit a numerical values. NB: This is _not_ a full expression evaluator. We should probably add one and re

For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a wa

Helper function to verify ABI compatibility between caller code and compiled version of Dear ImGui. Verify that the type sizes are matching between th

Debug Tools

Display dummy contents for the Document

Display context menu for the Document

NB: v_speed is float to allow adjusting the drag speed with more precision

Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a Drag widget, p_min and p_max are optional. Read code of e.g.

Demonstrate creating a simple console window, with scrolling, filtering, completion and history. For the console example, here we are using a more C++

We don't really use/need this now, but added it for the sake of consistency and because we might need it later.

This is normally called by Render(). You may want to call it directly if you want to avoid calling Render() but the gain will be very minimal.

Save and compare stack sizes on Begin()/End() to detect usage errors Begin() calls this with write=true End() calls this with write=false