No rendering on child windows created by SetParent native api method

[dougbinks]

Hi PrashantSaxena ,

Welcome to the GLFW forum.

I don’t know enough about child windows and OpenGL since when I’ve needed this behaviour I’ve simply closed the second window and rendered the window content to a region of the main window directly - this is also how the popular Dear ImGui docking branch works.

I did find a bit of code on Github using GLFW and SetParent, which I can’t find again (sorry). However it appeared to be resting some style attributes similar to the post below:

Attach A GLFWwindow To Windows Window Client Area?

I know this is old but will explain how I did it for those who also had issues. BEFORE you #include your glfw includes, define the native win32 glfw exposure such as: #define GLFW_EXPOSE_NATIVE_WIN32 #include <GLFW/glfw3.h> #include <GLFW/glfw3native.h> Next, make sure to include the glfw3native.h as shown above. Clean and rebuild and you should then have access to the function “HWND glfwGetWin32Window(GLFWwindow *window)” which returns a HWND handle from your GLFWwindow Next, create a sta…

Perhaps that might work for you?

Good luck,
Doug.