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IM_ALLOC() == ImGui::MemAlloc()

IM_FREE() == ImGui::MemFree()

Note: Because ImGui:: is a namespace you would typically add your own function into the namespace. For example, you code may declare a function 'ImGui

This needs to be called before we submit any widget (aka in or before Begin)

We get there when either NavId == id, or when g.NavAnyRequest is set (which is updated by NavUpdateAnyRequestFlag above)

Restore the last focused child. Call when we are expected to land on the Main Layer (0) after FocusWindow()

FIXME: This could be replaced by updating a frame number in each window when (window == NavWindow) and (NavLayer == 0). This way we could find the las

Scoring function for gamepad/keyboard directional navigation. Based on https://gist.github.com/rygorous/6981057

Apply result from previous frame navigation directional move request

Handle PageUp/PageDown/Home/End keys

Windowing management mode Keyboard: CTRL+Tab (change focus/move/resize), Alt (toggle menu layer) Gamepad: Hold Menu/Square (change focus/move/resize)

Overlay displayed when using CTRL+TAB. Called by EndFrame().

OBSOLETED in 1.79 (from August 2020)

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

Stateful path API, add points then finish with PathFillConvex() or PathStroke()

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)

FIXME: Remove the == 0.0f behavior?

Push a given id value ignoring the ID stack as a seed.

FIXME: This may incur a round-trip (if the end user got their data from a float4) but eventually we aim to store the in-flight colors as ImU32

We don't use g.FontSize because the window may be != g.CurrentWidow.