ImageByteOrder(3) XLIB FUNCTIONS ImageByteOrder(3)

NAME

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

SYNTAX

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);

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.

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

X Version 11 libX11 1.8.10 ImageByteOrder(3)