Backends+Examples: QNX Screen: added initial QNX support to backends and examples. (#9492)

docs/BACKENDS.md

@@ -79,6 +79,7 @@ List of Platforms Backends:
     imgui_impl_osx.mm           ; macOS native API (not as feature complete as glfw/sdl backends)
     imgui_impl_sdl2.cpp         ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
     imgui_impl_sdl3.cpp         ; SDL3 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
+    imgui_impl_qnx.cpp          ; QNX Screen
     imgui_impl_win32.cpp        ; Win32 native API (Windows)
     imgui_impl_glut.cpp         ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
 

docs/CHANGELOG.txt

@@ -56,6 +56,10 @@ Other Changes:
   - Per-viewport FramebufferScale for Apple/Retina screen is applied to draw lists:
     - AA Fringe is scaled accordingly.
     - Circle and Curves tessellation error are scaled accordingly.
+- Backends:
+  - QNX: added QNX Screen backend. (#9492) [@mgorchak-blackberry]
+- Examples:
+  - QNX+OpenGL3, QNX+Vulkan: added QNX Screen examples. (#9492) [@mgorchak-blackberry]
 
 
 -----------------------------------------------------------------------

docs/EXAMPLES.md

@@ -117,6 +117,16 @@ Because this application doesn't create a window nor a graphic context, there's
 Please note that imgui_impl_null itself is a rather empty backend. We provide it for consistency but
 it is similarly easy to create a skeleton application without the null backend.
 
+[example_qnx_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_qnx_opengl3/) <BR>
+QNX Screen + OpenGL ES 3 example. <BR>
+= main.cpp + imgui_impl_qnx.cpp + imgui_impl_opengl3.cpp <BR>
+Uses the QNX recursive make build system and compiles the OpenGL3 renderer with `IMGUI_IMPL_OPENGL_ES3`.
+
+[example_qnx_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_qnx_vulkan/) <BR>
+QNX Screen + Vulkan example using `VK_QNX_screen_surface`. <BR>
+= main.cpp + imgui_impl_qnx.cpp + imgui_impl_vulkan.cpp <BR>
+Uses the QNX recursive make build system and the Vulkan backend's example helper structures.
+
 [example_sdl2_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_directx11/) <BR>
 SDL2 + DirectX11 example, Windows only. <BR>
 = main.cpp + imgui_impl_sdl2.cpp + imgui_impl_dx11.cpp <BR>