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From: jw@SPAM.ISTC.SRI.COM (Julie Wong)
Newsgroups: comp.windows.x
Subject: X question
Message-ID: <8902080204.AA04728@aalps5>
Date: 8 Feb 89 02:04:22 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 69

Hello,

I have been trying to put up a black and white bit map on an X window
and without any luck.  Could someone help?

I declared an XImage structure of size 16x16.  Set the image data
pointer to an array of bits.  Then used the XPutImage command to put up
the image.  So far I have not been getting anything.

I think my graphics context is declared correctly because I am able to
put up rectangles and text using the XDrawRectangle and XDrawString
commands.  

The workstation I use is a Sun 140.  

Thanks,

Julie


-------------------------------

Segments of the program follows:

--------------------------------

static short icon_bitmap_bits[256]={
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x18, 0x30, 0x08,
   0x60, 0x0c, 0x80, 0x07, 0x00, 0x03, 0x80, 0x07, 0xc0, 0x0c, 0x60, 0x18,
   0x30, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

  /*create default graphic context for the window*/
  values.function = GXxor;
  values.plane_mask = AllPlanes;
  values.foreground = BlackPixel(dpy,screen);
  values.background = WhitePixel(dpy,screen);
  values.graphics_exposures = 0;

  mask = 0;
  mask |= GCFunction;
  mask |= GCPlaneMask;
  mask |= GCForeground;
  mask |= GCBackground;
  mask |= GCGraphicsExposures;

  gc = XCreateGC(dpy,window,mask,&values);

  /*define the type of image data*/
  icon_image.width = 16;
  icon_image.height = 16;
  icon_image.xoffset = 0;
  icon_image.format = XYBitmap;
  icon_image.data = (char *) icon_bitmap_bits;
  icon_image.byte_order = LSBFirst;
  icon_image.bitmap_unit = 8;
  icon_image.bitmap_bit_order = LSBFirst;
  icon_image.bitmap_pad = 0;
  icon_image.depth = 1;
  icon_image.bytes_per_line = 2;
  icon_image.bits_per_pixel = 1;

  /*put up image on window*/
  XPutImage(dpy,
	    (Drawable) window,
	    gc,
	    &icon_image,
	    0,0,
	    0,0,
	    16,16);