How to get window handle

[2gud4u]

I have been trying to get a handle of the current window because i want to draw from a Dinamic or Shared Library in Linux with Raylib so far i have done this but it doesnt recognize IntPtr

IntPtr windowHandle; //And in main function windowHandle = GetWindowHandle();
How can i get a window handle without errors ?

[jamesl-github]

are you using C# ?
IntPtr is for C#
found this code example
https://gist.github.com/ChrisDill/c2ca6a0ccf592c073a8d2aaeaa4adb7f
otherwise the cheatsheet shows it as a void * in C
https://www.raylib.com/cheatsheet/cheatsheet.html

[2gud4u]

Hello @jamesl-github !!

That example was the same i found
Based on the cheatsheet then it would be like this ?
void *windowhandle;
windowhandle = GetWindowHandle();
But how do i use then the windowhandle to draw if i want to draw from a shared library for example ? I only do
BeginDrawing(); etc as normal ? I ask because i had already done it that way and it freezes the window, sorry i wish there could be more examples about this, i think its important to know this. Thank you in advance !!!

[2gud4u]

One other thing, when i try to compile the examples from the repository i get a error in the first person camera example, the error is this.-
error: ‘CameraYaw’ was not declared in this scope; AND error: ‘CameraPitch’ was not declared in this scope;
And because of that i cant implement a first person camera, @raysan5 could you help me with this ?

[raysan5]

Hi! I just tried the core_3d_camera_first_person example and it works ok for me. Are you using latest raylib version? Are you including rcamera.h?

[raysan5]

About the window handle, are you on Windows? In what platform are you trying to get it?

// Get native window handle
void *GetWindowHandle(void)
{
#if defined(PLATFORM_DESKTOP) && defined(_WIN32)
    // NOTE: Returned handle is: void *HWND (windows.h)
    return glfwGetWin32Window(CORE.Window.handle);
#endif
#if defined(PLATFORM_DESKTOP) && defined(__linux__)
    // NOTE: Returned handle is: unsigned long Window (X.h)
    // typedef unsigned long XID;
    // typedef XID Window;
    //unsigned long id = (unsigned long)glfwGetX11Window(CORE.Window.handle);
    //return NULL;    // TODO: Find a way to return value... cast to void *?
    return (void *)CORE.Window.handle;
#endif
#if defined(__APPLE__)
    // NOTE: Returned handle is: (objc_object *)
    return (void *)glfwGetCocoaWindow(CORE.Window.handle);
#endif

    return NULL;
}

On Linux platforms, the returned window handle is probably not the expected one.

[2gud4u]

No way you dont disappont me at all i have never said that

[2gud4u]

I will close this discussion because i dont want you to feel bad, not my intention at all, you do a great job with raylib

[raysan5]

GLFW, the library used internally by raylib to manage windows exposes glfwGetX11Window(GLFWwindow *window) but that function requires defining GLFW_EXPOSE_NATIVE_X11 that is unfortunately incompatible with raylib due to symbol collisions. So, I'm afraid I don't know how to get the Linux native window properly. It requires investigation and testing.

[weskerfoot]

don't mean to revive an old issue but the value being returned is an XID value which means you can pass it into Xlib or XCB functions. That works perfectly for my use case. Although if you are running Wayland it would probably return something else (not really sure what)

[weskerfoot]

actually I guess it would return NULL if you are on Wayland

[2gud4u]

Linux its complex, but it should be considered in development