void XLockDisplay(display)
      Display *display;


display Specifies the connection to the X server.


The XLockDisplay() function locks out all other threads from using the specified display. Other threads attempting to use the display will block until the display is unlocked by this thread. Nested calls to XLockDisplay() work correctly; the display will not actually be unlocked until XUnlockDisplay() has been called the same number of times as XLockDisplay(). This function has no effect unless Xlib was successfully initialized for threads using XInitThreads().

See also

XInitThreads(), XUnlockDisplay(), "Using Xlib With Threads"
Christophe Tronche, [email protected]