Display an error tooltip when same ID as HoveredId was submitted multiple times. See code in ItemHoverable() for an explanation of why we associate th

Until 1.89 (August 2022, IMGUI_VERSION_NUM < 18814) it was legal to use SetCursorPos()/SetCursorScreenPos() to extend contents size of our parent cont

Save current stack sizes. Called e.g. by NewFrame() and by Begin() but may be called for manual recovery.

Chosen name "Try to recover" over e.g. "Restore" to suggest this is not a 100% guaranteed recovery. Called by e.g. EndFrame() but may be called for ma

Called by e.g. End() but may be called for manual recovery. Read '// Error Handling [BETA]' block in imgui_internal.h for details. Attempt to recover

Functions

Modify character input by altering 'data->Eventchar' (ImGuiInputTextFlags_CallbackCharFilter callback)

Return 0 (pass) if the character is 'i' or 'm' or 'g' or 'u' or 'i', otherwise return 1 (filter out)

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

When a modal popup is open, newly created windows that want focus (i.e. are not popups and do not specify ImGuiWindowFlags_NoFocusOnAppearing) should

If the backend doesn't support ImGuiBackendFlags_HasMouseHoveredViewport or doesn't honor ImGuiViewportFlags_NoInputs for it, we do a search ourselves

Find window given position, search front-to-back - Typically write output back to g.HoveredWindow and g.HoveredWindowUnderMovingWindow. - FIXME: Note

Search for the monitor with the largest intersection area with the given rectangle We generally try to avoid searching loops but the monitor count sho

FIXME: This leaks access to viewports not listed in PlatformIO.Viewports[]. Problematic? (#4236)

We don't provide a FindWindowSettingsByName() because Docking system doesn't always hold on names. This is called once per window .ini entry + once pe

This is faster if you are holding on a Window already as we don't need to perform a search.

Focus = move navigation cursor, set scrolling, set focus window.

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

FreeType memory allocation callbacks

Free up/compact internal window buffers, we can use this when a window becomes unused. Not freed: - ImGuiWindow, ImGuiWindowSettings, Name, StateStora

This is provided to facilitate copying allocators from one static/DLL boundary to another (e.g. retrieve default allocator of your executable address

Top-right

Bottom-left

Number of active/alive items in the pool (for display purpose)

A conformant backend should return NULL on failure (e.g. clipboard data is not text).

You should never need those functions. Always use GetCursorScreenPos() and GetContentRegionAvail()! They are bizarre local-coordinates which don't pla

Internal state access - if you want to share Dear ImGui state between modules (e.g. DLL) or allocate it yourself Note that we still point to some stat

Tab Bars

Tables: Internals

User generally sees positions in window coordinates. Internally we store CursorPos in absolute screen coordinates because it is more convenient. Conve