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clinuxx11xlib

Getting a pointer to my XDisplay (Linux) (X)?


I need to be able to access the X Event Loop to add clipboard support for a game API. The problem is the game API does not know which API it will use for display (It could use SDL or other). As a result, I do not have direct access to the X event loop. Is there a function in XLib to get a pointer to my display so that I can process messages and add clipboard support?

Thanks


Solution

  • If it runs on X11, there has to be a Display pointer in the graphics object somewhere. You can allocate a new one with XOpenDisplay(NULL); but that's not likely to achieve what you want. You'd still have to find the Windows and other info which is tricky enough when a program does it once.

    You really need to dig through the existing code to find the X11 module. There's likely to be a single function that performs on iteration of the "Event Loop" as a subroutine of the real "main Processing Loop". If you can't simply add your new code there, you can at least see how the program already accesses this information.