howto get Xlibs to display pixmap?

SciYro · 07-31-2004, 07:11 AM

erm, this ones been killing me for the last few days: does anyone know how to get a pixmap to be displayed as a background to a window? (whenever i try to do it, it just errors out, some BadMatch error in XCreateWindow ), when i try to copy the pixmap to the window (XCopyPlane) it doesn't display anything (at least not a pixmap i told it to draw)

heres the code I'm using to draw the pixmap

Code:

Pixmap exitpic;
switch (XReadBitmapFile (display, win, "/home/ME/pixmap", &rw, &rh, &exitpic, &rhx, &rhy)) {
			case BitmapSuccess:
				fprintf (stderr, "bitmap in place");
				break;
case BitmapOpenFailed:
        fprintf(stderr, "XReadBitmapFile - could not open file 'icon.bmp'.\n");
        break;
    case BitmapFileInvalid:
        fprintf(stderr,
                "XReadBitmapFile - file  doesn't contain a valid bitmap.\n");
        break;
    case BitmapNoMemory:
        fprintf(stderr, "XReadBitmapFile - not enough memory.\n");
        break;
		}
switch (XCopyPlane (display, exitpic, testwin, gc, 0, 0, 20, 20, 0, 0, 1)) {
		case BadDrawable:
			fprintf (stderr, "drawable");
			break;
		case BadGC:
			fprintf (stderr, "gc");
			break;

		case BadMatch:
			fprintf (stderr, "match");
			break;

		case BadValue:
			fprintf (stderr, "value");
			break;
		default: 
			fprintf (stderr, "hi");
			break;
		}
XFlush(display);

anyways.. heres the part i use when i tried to get it to display as a background (just the needed parts, the rest is the same as at top)

Code:

XSetWindowAttributes swmatt;

swmatt.background_pixmap = exitpic;

Window testwin = XCreateWindow (display, parentwin, 3, 72, 20, 20, 1, CopyFromParent, InputOutput, CopyFromParent, CWBorderPixel|CWEventMask|CWBackPixmap, &swmatt);

anyone here know how to get pixmaps to properly display? (i looked thru every tutorial for Xlibs i could find, none i found showed fully how to get a pixmap to display (at least for the background), and nothing in anything i found helped out so far