ImageByteOrder(3X11)        X Version 11(Release 5)        ImageByteOrder(3X11)


NAME
      ImageByteOrder, BitmapBitOrder, BitmapPad, BitmapUnit, DisplayHeight,
      DisplayHeightMM, DisplayWidth, DisplayWidthMM, XListPixmapFormats,
      XPixmapFormatValues - image format functions and macros

SYNTAX
      XPixmapFormatValues *XListPixmapFormats(display, count_return)
            Display *display;
            int *count_return;

      ImageByteOrder(display)

      BitmapBitOrder(display)

      BitmapPad(display)

      BitmapUnit(display)

      DisplayHeight(display, screen_number)

      DisplayHeightMM(display, screen_number)

      DisplayWidth(display, screen_number)

      DisplayWidthMM(display, screen_number)

ARGUMENTS
      display   Specifies the connection to the X server.

      count_return
                Returns the number of pixmap formats that are supported by the
                display.

      screen_number
                Specifies the appropriate screen number on the host server.

DESCRIPTION
      The XListPixmapFormats function returns an array of XPixmapFormatValues
      structures that describe the types of Z format images supported by the
      specified display.  If insufficient memory is available,
      XListPixmapFormats returns NULL.  To free the allocated storage for the
      XPixmapFormatValues structures, use XFree.

      The ImageByteOrder macro specifies the required byte order for images for
      each scanline unit in XY format (bitmap) or for each pixel value in Z
      format.

      The BitmapBitOrder macro returns LSBFirst or MSBFirst to indicate whether
      the leftmost bit in the bitmap as displayed on the screen is the least or
      most significant bit in the unit.




10/89                                                                    Page 1

ImageByteOrder(3X11)        X Version 11(Release 5)        ImageByteOrder(3X11)


      The BitmapPad macro returns the number of bits that each scanline must be
      padded.

      The BitmapUnit macro returns the size of a bitmap's scanline unit in
      bits.

      The DisplayHeight macro returns the height of the specified screen in
      pixels.

      The DisplayHeightMM macro returns the height of the specified screen in
      millimeters.

      The DisplayWidth macro returns the width of the screen in pixels.

      The DisplayWidthMM macro returns the width of the specified screen in
      millimeters.

STRUCTURES
      The XPixmapFormatValues structure provides an interface to the pixmap
      format information that is returned at the time of a connection setup.
      It contains:
      typedef struct {
           int depth;
           int bits_per_pixel;
           int scanline_pad;
      } XPixmapFormatValues;

SEE ALSO
      AllPlanes(3X11), BlackPixelOfScreen(3X11), IsCursorKey(3X11), XFree(3X11)
      Xlib - C Language X Interface
























Page 2                                                                    10/89