Man Linux: Main Page and Category List


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


       XPixmapFormatValues *XListPixmapFormats(Display *display, int

       int ImageByteOrder(Display *display);

       int BitmapBitOrder(Display *display);

       int BitmapPad(Display *display);

       int BitmapUnit(Display *display);

       int DisplayHeight(Display *display, int screen_number);

       int DisplayHeightMM(Display *display, int screen_number);

       int DisplayWidth(Display *display, int screen_number);

       int DisplayWidthMM(Display *display, int screen_number);


       display   Specifies the connection to the X server.

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

                 Specifies the appropriate screen number on the host server.


       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.

       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

       The DisplayHeight macro returns the height of the specified screen in

       The DisplayHeightMM macro returns the height of the specified screen in

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

       The DisplayWidthMM macro returns the width of the specified screen in


       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;


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