On Wed, 23 Jan 2002, Andy Isaacson wrote:
> On Wed, Jan 23, 2002 at 11:24:11AM -0800, Mark Vojkovich wrote:
> > int main()
> > {
> > Display *dpy;
> > dpy = XOpenDisplay('\0'); /* $DISPLAY connection */
>
> That can't be right. Make it XOpenDisplay(""); instead.
>
You are mistaken. From the man page on XOpenDisplay.
display_name
Specifies the hardware display name, which
determines the display and communications domain
to be used. On a POSIX-conformant system, if
the display_name is NULL, it defaults to the
value of the DISPLAY environment variable.
'\0' is NULL. So is 0. I'm not sure about "".
Mark.
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