Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!columbia!cs!shamash
From: shamash@cs.columbia.edu (Ari Shamash)
Newsgroups: comp.windows.x
Subject: problems with XGetStandardColorMap()..
Keywords: color maps xgetstandardcolormap
Message-ID: <319@cs.columbia.edu>
Date: 28 Aug 89 16:23:24 GMT
Reply-To: shamash@cs.columbia.edu (Ari Shamash)
Followup-To: comp.windows.x
Organization: Columbia University Computer Science Dept
Lines: 66

Can somebody please help me with allocating a standard color map?
From what I gathered by reading The XLib manual, the following program
should work..  I'm using X11 R.3, TWM, and SunOS 4.0 on a Sun 3/60.
I've tried this with UWM, too, to no avail.

Here is my program:

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>

main (argc, argv)
int argc;
char **argv;
{
    Display *display;
    int screen;
    Window window;
    unsigned long foreground;
    XSizeHints hint;
    XStandardColormap mystd;
    GC gc;
    
    display = XOpenDisplay("");
    screen = DefaultScreen(display);

    hint.x = 200; hint.y = 300;
    hint.width = 300; hint.height = 300;
    hint.flags = PPosition | PSize;

    window = XCreateSimpleWindow(display, DefaultRootWindow(display),
				 hint.x, hint.y, hint.width, hint.height,
				 5,
				 WhitePixel(display, screen),
				 BlackPixel(display, screen) );

    XSelectInput(display, window,  ExposureMask);

    gc = XCreateGC (display, window, 0, 0);
    
    XSetBackground(display, gc, WhitePixel(display, screen));
    XSetForeground(display, gc, BlackPixel(display, screen));

    XMapRaised(display, window);
    XFlush(display);

    if (XGetStandardColormap(display,
			     RootWindow(display, DefaultScreen(display)), 
			     &mystd, XA_RGB_DEFAULT_MAP) == 0) 
    {
	printf("XGetStandardColormap failed.\n");
    }

    XFreeGC(display, gc);
    XDestroyWindow(display, window);
    XCloseDisplay(display);
    exit(0);    
}

Thanks in advance,
Ari
-- 
shamash@cs.columbia.edu
shamash@gollum.cs.columbia.edu
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