Mark popup as open (toggle toward open state). Popups are closed when user click outside, or activate a pressable item, or CloseCurrentPopup() is call

Helper to open a popup if mouse button is released over the item - This is essentially the same as BeginPopupContextItem() but without the trailing Be

OBSOLETED in 1.80 (Jan 2021)

Stateful path API, add points then finish with PathFillConvex() or PathStroke() - Filled shapes must always use clockwise winding order. The anti-alia

Fully unrolled with inline call to keep our debug builds decently fast.

Release the a number of reserved vertices/indices from the end of the last reservation made with PrimReserve().

size_arg (for each axis) < 0.0f: align to end, 0.0f: auto, > 0.0f: specified size

FIXME: Look into renaming this once we have settled the new Focus/Activation/TabStop system.

Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushC

Get into the columns background draw command (which is generally the same draw command as before we called BeginColumns)