Opens the default display specified by command line arguments or
environment variables, sets it as the default display, and returns
it. gdk_parse_args() must have been called first. If the default
display has previously been set, simply returns that. An internal
function that should not be used by applications.
Return: the default display, if it
could be opened, otherwise %NULL.
Opens the default display specified by command line arguments or environment variables, sets it as the default display, and returns it. gdk_parse_args() must have been called first. If the default display has previously been set, simply returns that. An internal function that should not be used by applications.
Return: the default display, if it could be opened, otherwise %NULL.