Docking: how to figure out if a docked tab becomes active/visible? #4177
Description
Version/Branch of Dear ImGui:
Dear ImGui 1.84 WIP (18302)
--------------------------------
sizeof(size_t): 8, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20
define: __cplusplus=201703
define: _WIN32
define: _WIN64
define: _MSC_VER=1928
define: _MSVC_LANG=201703
define: IMGUI_HAS_VIEWPORT
define: IMGUI_HAS_DOCK
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io.BackendPlatformName: imgui_impl_glfw
io.BackendRendererName: imgui_impl_opengl3
io.ConfigFlags: 0x00000440
DockingEnable
ViewportsEnable
io.ConfigViewportsNoAutoMerge
io.ConfigViewportsNoDecoration
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigMemoryCompactTimer = 60,0
io.BackendFlags: 0x00001C06
HasMouseCursors
HasSetMousePos
PlatformHasViewports
HasMouseHoveredViewport
RendererHasViewports
--------------------------------
io.Fonts: 7 fonts, Flags: 0x00000000, TexSize: 4096,4096
io.DisplaySize: 2560,00,1377,00
io.DisplayFramebufferScale: 1,00,1,00
--------------------------------
style.WindowPadding: 8,00,8,00
style.WindowBorderSize: 1,00
style.FramePadding: 4,00,3,00
style.FrameRounding: 0,00
style.FrameBorderSize: 0,00
style.ItemSpacing: 8,00,4,00
style.ItemInnerSpacing: 4,00,4,00
My Issue/Question:
In the docking branch, is there a way to figure out if a docked window (i.e. a tab) became active/visible? ImGui::IsWindowAppearing() does not seem to work for that.