NAME

       XReadBitmapFile,   XReadBitmapFileData,   XWriteBitmapFile,   XCreatePixmapFromBitmapData,
       XCreateBitmapFromData - manipulate bitmaps

SYNTAX

       int XReadBitmapFile(Display *display, Drawable d, _Xconst  char  *filename,  unsigned  int
              *width_return,    unsigned   int   *height_return,   Pixmap   *bitmap_return,   int
              *x_hot_return, int *y_hot_return);

       int XReadBitmapFileData(_Xconst char *filename, unsigned int *width_return,  unsigned  int
              *height_return, unsigned char **data_return, int *x_hot_return, int *y_hot_return);

       int XWriteBitmapFile(Display *display, _Xconst char *filename, Pixmap bitmap, unsigned int
              width, unsigned int height, int x_hot, int y_hot);

       Pixmap XCreatePixmapFromBitmapData(Display *display, Drawable d, char *data, unsigned  int
              width,  unsigned  int  height,  unsigned  long  fg,  unsigned long bg, unsigned int
              depth);

       Pixmap XCreateBitmapFromData(Display *display, Drawable d, _Xconst  char  *data,  unsigned
              int width, unsigned int height);

ARGUMENTS

       bitmap    Specifies the bitmap.

       bitmap_return
                 Returns the bitmap that is created.

       d         Specifies the drawable that indicates the screen.

       data      Specifies the data in bitmap format.

       data      Specifies the location of the bitmap data.

       data_return
                 Returns the bitmap data.

       depth     Specifies the depth of the pixmap.

       display   Specifies the connection to the X server.

       fg
       bg        Specify the foreground and background pixel values to use.

       filename  Specifies the file name to use.  The format of the file name is operating-system
                 dependent.

       width
       height    Specify the width and height.

       width_return
       height_return
                 Return the width and height values of the read in bitmap file.

       x_hot
       y_hot     Specify where to place the hotspot coordinates (or -1,-1 if none are present) in
                 the file.

       x_hot_return
       y_hot_return
                 Return the hotspot coordinates.

DESCRIPTION

       The  XReadBitmapFile  function reads in a file containing a bitmap.  The file is parsed in
       the encoding of the current locale.  The ability to read other than the standard format is
       implementation-dependent.    If   the  file  cannot  be  opened,  XReadBitmapFile  returns
       BitmapOpenFailed.  If the file can be opened but does not contain valid  bitmap  data,  it
       returns  BitmapFileInvalid.   If  insufficient  working  storage  is allocated, it returns
       BitmapNoMemory.  If the file is readable and valid, it returns BitmapSuccess.

       XReadBitmapFile returns the  bitmap's  height  and  width,  as  read  from  the  file,  to
       width_return  and  height_return.  It then creates a pixmap of the appropriate size, reads
       the bitmap data from the file into the pixmap, and assigns  the  pixmap  to  the  caller's
       variable  bitmap.   The  caller  must free the bitmap using XFreePixmap when finished.  If
       name_x_hot  and  name_y_hot  exist,  XReadBitmapFile  returns  them  to  x_hot_return  and
       y_hot_return; otherwise, it returns -1,-1.

       XReadBitmapFile can generate BadAlloc and BadDrawable errors.

       The  XReadBitmapFileData  function reads in a file containing a bitmap, in the same manner
       as XReadBitmapFile, but returns the data directly rather than creating  a  pixmap  in  the
       server.   The  bitmap  data  is returned in data_return; the client must free this storage
       when finished with it by calling XFree.  The status and other return values are  the  same
       as for XReadBitmapFile.

       The  XWriteBitmapFile  function  writes a bitmap out to a file in the X Version 11 format.
       The name used in the output file is derived from the file name by deleting  the  directory
       prefix.  The file is written in the encoding of the current locale.  If the file cannot be
       opened for writing, it returns BitmapOpenFailed.  If  insufficient  memory  is  allocated,
       XWriteBitmapFile returns BitmapNoMemory; otherwise, on no error, it returns BitmapSuccess.
       If x_hot and y_hot are not -1,  -1,  XWriteBitmapFile  writes  them  out  as  the  hotspot
       coordinates for the bitmap.

       XWriteBitmapFile can generate BadDrawable and BadMatch errors.

       The XCreatePixmapFromBitmapData function creates a pixmap of the given depth and then does
       a bitmap-format XPutImage of the data into it.  The depth must be supported by the  screen
       of the specified drawable, or a BadMatch error results.

       XCreatePixmapFromBitmapData can generate BadAlloc and BadMatch errors.

       The  XCreateBitmapFromData  function  allows  you  to  include  in  your  C program (using
       #include) a bitmap file that was written out by  XWriteBitmapFile  (X  version  11  format
       only) without reading in the bitmap file.  The following example creates a gray bitmap:

       #include "gray.bitmap"
       Pixmap bitmap;
       bitmap = XCreateBitmapFromData(display, window, gray_bits, gray_width, gray_height);

       If  insufficient working storage was allocated, XCreateBitmapFromData returns None.  It is
       your responsibility to free the bitmap using XFreePixmap when finished.

       XCreateBitmapFromData can generate a BadAlloc error.

DIAGNOSTICS

       BadAlloc  The server failed to allocate the requested resource or server memory.

       BadDrawable
                 A value for a Drawable argument does not name a defined Window or Pixmap.

       BadMatch  An InputOnly window is used as a Drawable.

SEE ALSO

       XCreatePixmap(3), XPutImage(3)
       Xlib - C Language X Interface