262 lines
8.1 KiB
Groff
262 lines
8.1 KiB
Groff
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
|
|
.\"
|
|
.\" Permission is hereby granted, free of charge, to any person obtaining
|
|
.\" a copy of this software and associated documentation files (the
|
|
.\" "Software"), to deal in the Software without restriction, including
|
|
.\" without limitation the rights to use, copy, modify, merge, publish,
|
|
.\" distribute, sublicense, and/or sell copies of the Software, and to
|
|
.\" permit persons to whom the Software is furnished to do so, subject to
|
|
.\" the following conditions:
|
|
.\"
|
|
.\" The above copyright notice and this permission notice shall be included
|
|
.\" in all copies or substantial portions of the Software.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
.\" OTHER DEALINGS IN THE SOFTWARE.
|
|
.\"
|
|
.\" Except as contained in this notice, the name of the X Consortium shall
|
|
.\" not be used in advertising or otherwise to promote the sale, use or
|
|
.\" other dealings in this Software without prior written authorization
|
|
.\" from the X Consortium.
|
|
.\"
|
|
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
|
|
.\" Digital Equipment Corporation
|
|
.\"
|
|
.\" Portions Copyright \(co 1990, 1991 by
|
|
.\" Tektronix, Inc.
|
|
.\"
|
|
.\" Permission to use, copy, modify and distribute this documentation for
|
|
.\" any purpose and without fee is hereby granted, provided that the above
|
|
.\" copyright notice appears in all copies and that both that copyright notice
|
|
.\" and this permission notice appear in all copies, and that the names of
|
|
.\" Digital and Tektronix not be used in in advertising or publicity pertaining
|
|
.\" to this documentation without specific, written prior permission.
|
|
.\" Digital and Tektronix makes no representations about the suitability
|
|
.\" of this documentation for any purpose.
|
|
.\" It is provided "as is" without express or implied warranty.
|
|
.\"
|
|
.\"
|
|
.ds xT X Toolkit Intrinsics \- C Language Interface
|
|
.ds xW Athena X Widgets \- C Language X Toolkit Interface
|
|
.ds xL Xlib \- C Language X Interface
|
|
.ds xC Inter-Client Communication Conventions Manual
|
|
.TH XReadBitmapFile __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
|
|
.SH NAME
|
|
XReadBitmapFile, XReadBitmapFileData, XWriteBitmapFile, XCreatePixmapFromBitmapData, XCreateBitmapFromData \- manipulate bitmaps
|
|
.SH SYNTAX
|
|
.HP
|
|
int XReadBitmapFile(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, char
|
|
*\fIfilename\fP\^, unsigned int *\fIwidth_return\fP, unsigned int
|
|
*\fIheight_return\fP\^, Pixmap *\fIbitmap_return\fP\^, int
|
|
*\fIx_hot_return\fP, int *\fIy_hot_return\fP\^);
|
|
.HP
|
|
int XReadBitmapFileData(\^char *\fIfilename\fP\^, unsigned int
|
|
*\fIwidth_return\fP, unsigned int *\fIheight_return\fP\^, unsigned char
|
|
*\fIdata_return\fP\^, int *\fIx_hot_return\fP, int *\fIy_hot_return\fP\^);
|
|
.HP
|
|
int XWriteBitmapFile(\^Display *\fIdisplay\fP\^, char *\fIfilename\fP\^,
|
|
Pixmap \fIbitmap\fP\^, unsigned int \fIwidth\fP, unsigned int \fIheight\fP\^,
|
|
int \fIx_hot\fP, int \fIy_hot\fP\^);
|
|
.HP
|
|
Pixmap XCreatePixmapFromBitmapData\^(\^Display *\fIdisplay\fP\^, Drawable
|
|
\fId\fP\^, char *\fIdata\fP\^, unsigned int \fIwidth\fP, unsigned int
|
|
\fIheight\fP\^, unsigned long \fIfg\fP, unsigned long \fIbg\fP\^, unsigned int
|
|
\fIdepth\fP\^);
|
|
.HP
|
|
Pixmap XCreateBitmapFromData(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^,
|
|
char *\fIdata\fP\^, unsigned int \fIwidth\fP, unsigned int \fIheight\fP\^);
|
|
.SH ARGUMENTS
|
|
.IP \fIbitmap\fP 1i
|
|
Specifies the bitmap.
|
|
.IP \fIbitmap_return\fP 1i
|
|
Returns the bitmap that is created.
|
|
.IP \fId\fP 1i
|
|
Specifies the drawable that indicates the screen.
|
|
.IP \fIdata\fP 1i
|
|
Specifies the data in bitmap format.
|
|
.IP \fIdata\fP 1i
|
|
Specifies the location of the bitmap data.
|
|
.IP \fIdata_return\fP 1i
|
|
Returns the bitmap data.
|
|
.IP \fIdepth\fP 1i
|
|
Specifies the depth of the pixmap.
|
|
.IP \fIdisplay\fP 1i
|
|
Specifies the connection to the X server.
|
|
.IP \fIfg\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIbg\fP 1i
|
|
Specify the foreground and background pixel values to use.
|
|
.IP \fIfilename\fP 1i
|
|
Specifies the file name to use.
|
|
The format of the file name is operating-system dependent.
|
|
.IP \fIwidth\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIheight\fP 1i
|
|
Specify the width and height.
|
|
.IP \fIwidth_return\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIheight_return\fP 1i
|
|
Return the width and height values of the read in bitmap file.
|
|
.IP \fIx_hot\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIy_hot\fP 1i
|
|
Specify where to place the hotspot coordinates (or \-1,\-1 if none are present)
|
|
in the file.
|
|
.IP \fIx_hot_return\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIy_hot_return\fP 1i
|
|
Return the hotspot coordinates.
|
|
.SH DESCRIPTION
|
|
The
|
|
.B 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,
|
|
.B XReadBitmapFile
|
|
returns
|
|
.BR BitmapOpenFailed .
|
|
If the file can be opened but does not contain valid bitmap data,
|
|
it returns
|
|
.BR BitmapFileInvalid .
|
|
If insufficient working storage is allocated,
|
|
it returns
|
|
.BR BitmapNoMemory .
|
|
If the file is readable and valid,
|
|
it returns
|
|
.BR BitmapSuccess .
|
|
.LP
|
|
.B 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
|
|
.B XFreePixmap
|
|
when finished.
|
|
If \fIname\fP_x_hot and \fIname\fP_y_hot exist,
|
|
.B XReadBitmapFile
|
|
returns them to x_hot_return and y_hot_return;
|
|
otherwise, it returns \-1,\-1.
|
|
.LP
|
|
.B XReadBitmapFile
|
|
can generate
|
|
.B BadAlloc
|
|
and
|
|
.B BadDrawable
|
|
errors.
|
|
.LP
|
|
The
|
|
.B XReadBitmapFileData
|
|
function reads in a file containing a bitmap, in the same manner as
|
|
.BR 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
|
|
.BR XFree .
|
|
The status and other return values are the same as for
|
|
.BR XReadBitmapFile .
|
|
.LP
|
|
The
|
|
.B 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
|
|
.BR BitmapOpenFailed .
|
|
If insufficient memory is allocated,
|
|
.B XWriteBitmapFile
|
|
returns
|
|
.BR BitmapNoMemory ;
|
|
otherwise, on no error,
|
|
it returns
|
|
.BR BitmapSuccess .
|
|
If x_hot and y_hot are not \-1, \-1,
|
|
.B XWriteBitmapFile
|
|
writes them out as the hotspot coordinates for the bitmap.
|
|
.LP
|
|
.B XWriteBitmapFile
|
|
can generate
|
|
.B BadDrawable
|
|
and
|
|
.B BadMatch
|
|
errors.
|
|
.LP
|
|
The
|
|
.B XCreatePixmapFromBitmapData
|
|
function creates a pixmap of the given depth and then does a bitmap-format
|
|
.B XPutImage
|
|
of the data into it.
|
|
The depth must be supported by the screen of the specified drawable,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
.LP
|
|
.B XCreatePixmapFromBitmapData
|
|
can generate
|
|
.B BadAlloc
|
|
and
|
|
.B BadMatch
|
|
errors.
|
|
.LP
|
|
The
|
|
.B XCreateBitmapFromData
|
|
function allows you to include in your C program (using
|
|
.BR #include )
|
|
a bitmap file that was written out by
|
|
.B XWriteBitmapFile
|
|
(X version 11 format only) without reading in the bitmap file.
|
|
The following example creates a gray bitmap:
|
|
.LP
|
|
.EX
|
|
\&#include "gray.bitmap"
|
|
.sp 6p
|
|
Pixmap bitmap;
|
|
bitmap = XCreateBitmapFromData(display, window, gray_bits, gray_width, gray_height);
|
|
.EE
|
|
.LP
|
|
If insufficient working storage was allocated,
|
|
.B XCreateBitmapFromData
|
|
returns
|
|
.BR None .
|
|
It is your responsibility to free the
|
|
bitmap using
|
|
.B XFreePixmap
|
|
when finished.
|
|
.LP
|
|
.B XCreateBitmapFromData
|
|
can generate a
|
|
.B BadAlloc
|
|
error.
|
|
.SH DIAGNOSTICS
|
|
.TP 1i
|
|
.B BadAlloc
|
|
The server failed to allocate the requested resource or server memory.
|
|
.TP 1i
|
|
.B BadDrawable
|
|
A value for a Drawable argument does not name a defined Window or Pixmap.
|
|
.TP 1i
|
|
.B BadMatch
|
|
An
|
|
.B InputOnly
|
|
window is used as a Drawable.
|
|
.SH "SEE ALSO"
|
|
XCreatePixmap(__libmansuffix__),
|
|
XPutImage(__libmansuffix__)
|
|
.br
|
|
\fI\*(xL\fP
|