Table of Contents
ImageByteOrder, BitmapBitOrder,
BitmapPad, BitmapUnit, DisplayHeight, DisplayHeightMM, DisplayWidth, DisplayWidthMM,
XListPixmapFormats, XPixmapFormatValues - image format functions and macros
- XPixmapFormatValues *XListPixmapFormats(Display *display, int *count_return);
- 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); 
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 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. 
The XPixmapFormatValues
  structure provides an interface to the pixmap format information that
is returned at the time of a connection setup. It contains: 
0
0>=40 .vs 0u
0<=39 .vs 0p
typedef struct {
    int depth;
    int bits_per_pixel;
    int scanline_pad;
} XPixmapFormatValues;
 
AllPlanes(3X11)
, BlackPixelOfScreen(3X11)
, IsCursorKey(3X11)
,
XFree(3X11)
 
Xlib - C Language X Interface 
Table of Contents