char *XDisplayName(string)
      char *string;


string Specifies the character string.


The XDisplayName() function returns the name of the display that XOpenDisplay() would attempt to use. If a NULL string is specified, XDisplayName() looks in the environment for the display and returns the display name that XOpenDisplay() would attempt to use. This makes it easier to report to the user precisely which display the program attempted to open when the initial connection attempt failed.

See also

XGetErrorDatabaseText(), XGetErrorText(), XOpenDisplay(), XSetErrorHandler(), XSetIOErrorHandler(), XSynchronize(), "Using the Default Error Handlers".
Christophe Tronche, ch@tronche.com