The mouse will penetrate front-most window and interact one behind it

[LOWRUI]

Version/Branch of Dear ImGui:

v1.92.3-docking

Back-ends:

imgui_impl_glfw.cpp + imgui_impl_opengl3.cpp

Compiler, OS:

Windows11 + MSVC 2022

Full config/build information:

Dear ImGui 1.92.3 (19230)
--------------------------------
sizeof(size_t): 8, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20
define: __cplusplus=199711
define: _WIN32
define: _WIN64
define: _MSC_VER=1944
define: _MSVC_LANG=201402
define: IMGUI_HAS_VIEWPORT
define: IMGUI_HAS_DOCK
--------------------------------
io.BackendPlatformName: imgui_impl_glfw (3200)
io.BackendRendererName: imgui_impl_opengl3
io.ConfigFlags: 0x00000483
 NavEnableKeyboard
 NavEnableGamepad
 DockingEnable
 ViewportsEnable
io.ConfigViewportsNoDecoration
io.ConfigNavCaptureKeyboard
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigMemoryCompactTimer = 60.0
io.BackendFlags: 0x0000141E
 HasMouseCursors
 HasSetMousePos
 PlatformHasViewports
 RendererHasVtxOffset
 RendererHasTextures
 RendererHasViewports
--------------------------------
io.Fonts: 1 fonts, Flags: 0x00000000, TexSize: 512,128
io.Fonts->FontLoaderName: stb_truetype
io.DisplaySize: 1280.00,800.00
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

Details:

The operation logic between the sub-window and the main window is abnormal Open the sub-window, move it to the edge, and then perform a "CTRL+left mouse button" click operation on the window bar. At this point, the sub-window appears behind the main window. Now, there will be a situation where the mouse interaction is triggered on the main window but is displayed on the sub-window

The video is in the zip file. I'm not sure why uploading the video directly to github.com shows a failure

Screenshots/Video:

20251029.zip

Minimal, Complete and Verifiable Example code:

[ocornut]

This was fixed in dear imgui 1.92.4 (see #8948) or if you update to GLFW 3.4.

[LOWRUI]

This was fixed in dear imgui 1.92.4 (see #8948) or if you update to GLFW 3.4.

This issue still exists in version 1.92.4, where the mouse can control the lower-level child windows. However, updating to GLFW 3.4 resolves the problem