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