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.

r_avoid = the rectangle to avoid (e.g. for tooltip it is a rectangle around the mouse cursor which we want to avoid. for popups it's a small point aro

Full version, ensure both points are fully clipped.

Moving window to front of display and set focus (which happens to be back of our sorted list)

Process TAB/Shift+TAB. Be mindful that this function may _clear_ the ActiveID when tabbing out.

FreeType memory allocation callbacks

GDescriptorHeap();