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.

[raysan5]

Also note that I'm not a Linux expert, I always work on Windows and the few times I tried using Linux my experience was quite bad. Learning how to get that Linux window handle would imply way more time for me than for a Linux experienced developer. And kind reminder that raylib is an open and collaborative project, contributions are welcome. I'm sorry if it disapoints you.

[2gud4u]

As i said above in this thread i want to draw some 3d stuff from a shared library or dinamic library in Linux that would be the equivalent to a winows Dll but for drawing 3d stuff, yes now i understand the problem maybe its a advanced topic, and im a newbie and im asking for too much, and more for Linux, or could you tell me how can i acheive this in Linux ? please my friend ?

[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.

[2gud4u]

Linux its complex, but it should be considered in development