310 lines
10 KiB
Groff
310 lines
10 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 XPutImage __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
|
|
.SH NAME
|
|
XPutImage, XGetImage, XGetSubImage \- transfer images
|
|
.SH SYNTAX
|
|
.HP
|
|
int XPutImage\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, GC \fIgc\fP\^,
|
|
XImage *\fIimage\fP\^, int \fIsrc_x\fP\^, int \fIsrc_y\fP\^, int
|
|
\fIdest_x\fP\^, int \fIdest_y\fP\^, unsigned int \fIwidth\fP\^, unsigned int
|
|
\fIheight\fP\^);
|
|
.HP
|
|
XImage *XGetImage\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, int
|
|
\fIx\fP\^, int \fIy\fP\^, unsigned int \fIwidth\fP\^, unsigned int
|
|
\fIheight\fP\^, unsigned long \fIplane_mask\fP\^, int \fIformat\fP\^);
|
|
.HP
|
|
XImage *XGetSubImage\^(\^Display *\fIdisplay\fP\^, Drawable \fId\fP\^, int
|
|
\fIx\fP\^, int \fIy\fP\^, unsigned int \fIwidth\fP\^, unsigned int
|
|
\fIheight\fP\^, unsigned long \fIplane_mask\fP\^, int \fIformat\fP\^, XImage
|
|
*\fIdest_image\fP\^, int \fIdest_x\fP\^, \fIdest_y\fP\^);
|
|
.SH ARGUMENTS
|
|
.IP \fId\fP 1i
|
|
Specifies the drawable.
|
|
.IP \fIdest_image\fP 1i
|
|
Specifies the destination image.
|
|
.ds Dx
|
|
.IP \fIdest_x\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIdest_y\fP 1i
|
|
Specify the x and y coordinates, which are relative to the origin of the drawable
|
|
and are the coordinates of the subimage
|
|
or which are relative to the origin of the destination rectangle,
|
|
specify its upper-left corner, and determine where the subimage
|
|
is placed in the destination image.
|
|
.IP \fIdisplay\fP 1i
|
|
Specifies the connection to the X server.
|
|
.IP \fIformat\fP 1i
|
|
Specifies the format for the image.
|
|
You can pass
|
|
.B XYPixmap
|
|
or
|
|
.BR ZPixmap .
|
|
.IP \fIgc\fP 1i
|
|
Specifies the GC.
|
|
.IP \fIimage\fP 1i
|
|
Specifies the image you want combined with the rectangle.
|
|
.IP \fIplane_mask\fP 1i
|
|
Specifies the plane mask.
|
|
.\" *** JIM: NEED MORE INFO FOR THIS. ***
|
|
.IP \fIsrc_x\fP 1i
|
|
Specifies the offset in X from the left edge of the image defined
|
|
by the
|
|
.B XImage
|
|
structure.
|
|
.IP \fIsrc_y\fP 1i
|
|
Specifies the offset in Y from the top edge of the image defined
|
|
by the
|
|
.B XImage
|
|
structure.
|
|
.IP \fIwidth\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIheight\fP 1i
|
|
Specify the width and height of the subimage, which define
|
|
the dimensions of the rectangle.
|
|
.IP \fIx\fP 1i
|
|
.br
|
|
.ns
|
|
.IP \fIy\fP 1i
|
|
Specify the x and y coordinates, which are relative to the origin of the drawable
|
|
and define the upper-left corner of the rectangle.
|
|
.SH DESCRIPTION
|
|
The
|
|
.B XPutImage
|
|
function
|
|
combines an image with a rectangle of the specified drawable.
|
|
The section of the image defined by the src_x, src_y, width, and height
|
|
arguments is drawn on the specified part of the drawable.
|
|
If
|
|
.B XYBitmap
|
|
format is used, the depth of the image must be one,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
The foreground pixel in the GC defines the source for the one bits in the image,
|
|
and the background pixel defines the source for the zero bits.
|
|
For
|
|
.B XYPixmap
|
|
and
|
|
.BR ZPixmap ,
|
|
the depth of the image must match the depth of the drawable,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
.LP
|
|
If the characteristics of the image (for example, byte_order and bitmap_unit)
|
|
differ from what the server requires,
|
|
.B XPutImage
|
|
automatically makes the appropriate
|
|
conversions.
|
|
.LP
|
|
This function uses these GC components:
|
|
function, plane-mask, subwindow-mode, clip-x-origin, clip-y-origin,
|
|
and clip-mask.
|
|
It also uses these GC mode-dependent components:
|
|
foreground and background.
|
|
.LP
|
|
.B XPutImage
|
|
can generate
|
|
.BR BadDrawable ,
|
|
.BR BadGC ,
|
|
.BR BadMatch ,
|
|
and
|
|
.B BadValue
|
|
errors.
|
|
.LP
|
|
The
|
|
.B XGetImage
|
|
function returns a pointer to an
|
|
.B XImage
|
|
structure.
|
|
This structure provides you with the contents of the specified rectangle of
|
|
the drawable in the format you specify.
|
|
If the format argument is
|
|
.BR XYPixmap ,
|
|
the image contains only the bit planes you passed to the plane_mask argument.
|
|
If the plane_mask argument only requests a subset of the planes of the
|
|
display, the depth of the returned image will be the number of planes
|
|
requested.
|
|
If the format argument is
|
|
.BR ZPixmap ,
|
|
.B XGetImage
|
|
returns as zero the bits in all planes not
|
|
specified in the plane_mask argument.
|
|
The function performs no range checking on the values in plane_mask and ignores
|
|
extraneous bits.
|
|
.LP
|
|
.B XGetImage
|
|
returns the depth of the image to the depth member of the
|
|
.B XImage
|
|
structure.
|
|
The depth of the image is as specified when the drawable was created,
|
|
except when getting a subset of the planes in
|
|
.B XYPixmap
|
|
format, when the depth is given by the number of bits set to 1 in plane_mask.
|
|
.LP
|
|
If the drawable is a pixmap,
|
|
the given rectangle must be wholly contained within the pixmap,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
If the drawable is a window,
|
|
the window must be viewable,
|
|
and it must be the case that if there were no inferiors or overlapping windows,
|
|
the specified rectangle of the window would be fully visible on the screen
|
|
and wholly contained within the outside edges of the window,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
Note that the borders of the window can be included and read with
|
|
this request.
|
|
If the window has backing-store, the backing-store contents are
|
|
returned for regions of the window that are obscured by noninferior
|
|
windows.
|
|
If the window does not have backing-store,
|
|
the returned contents of such obscured regions are undefined.
|
|
The returned contents of visible regions of inferiors
|
|
of a different depth than the specified window's depth are also undefined.
|
|
The pointer cursor image is not included in the returned contents.
|
|
If a problem occurs,
|
|
.B XGetImage
|
|
returns NULL.
|
|
.LP
|
|
.B XGetImage
|
|
can generate
|
|
.BR BadDrawable ,
|
|
.BR BadMatch ,
|
|
and
|
|
.B BadValue
|
|
errors.
|
|
.LP
|
|
The
|
|
.B XGetSubImage
|
|
function updates dest_image with the specified subimage in the same manner as
|
|
.BR XGetImage .
|
|
If the format argument is
|
|
.BR XYPixmap ,
|
|
the image contains only the bit planes you passed to the plane_mask argument.
|
|
If the format argument is
|
|
.BR ZPixmap ,
|
|
.B XGetSubImage
|
|
returns as zero the bits in all planes not
|
|
specified in the plane_mask argument.
|
|
The function performs no range checking on the values in plane_mask and ignores
|
|
extraneous bits.
|
|
As a convenience,
|
|
.B XGetSubImage
|
|
returns a pointer to the same
|
|
.B XImage
|
|
structure specified by dest_image.
|
|
.LP
|
|
The depth of the destination
|
|
.B XImage
|
|
structure must be the same as that of the drawable.
|
|
If the specified subimage does not fit at the specified location
|
|
on the destination image, the right and bottom edges are clipped.
|
|
If the drawable is a pixmap,
|
|
the given rectangle must be wholly contained within the pixmap,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
If the drawable is a window,
|
|
the window must be viewable,
|
|
and it must be the case that if there were no inferiors or overlapping windows,
|
|
the specified rectangle of the window would be fully visible on the screen
|
|
and wholly contained within the outside edges of the window,
|
|
or a
|
|
.B BadMatch
|
|
error results.
|
|
If the window has backing-store,
|
|
then the backing-store contents are returned for regions of the window
|
|
that are obscured by noninferior windows.
|
|
If the window does not have backing-store,
|
|
the returned contents of such obscured regions are undefined.
|
|
The returned contents of visible regions of inferiors
|
|
of a different depth than the specified window's depth are also undefined.
|
|
If a problem occurs,
|
|
.B XGetSubImage
|
|
returns NULL.
|
|
.LP
|
|
.B XGetSubImage
|
|
can generate
|
|
.BR BadDrawable ,
|
|
.BR BadGC ,
|
|
.BR BadMatch ,
|
|
and
|
|
.B BadValue
|
|
errors.
|
|
.SH DIAGNOSTICS
|
|
.TP 1i
|
|
.B BadDrawable
|
|
A value for a Drawable argument does not name a defined Window or Pixmap.
|
|
.TP 1i
|
|
.B BadGC
|
|
A value for a GContext argument does not name a defined GContext.
|
|
.TP 1i
|
|
.B BadMatch
|
|
An
|
|
.B InputOnly
|
|
window is used as a Drawable.
|
|
.TP 1i
|
|
.B BadMatch
|
|
Some argument or pair of arguments has the correct type and range but fails
|
|
to match in some other way required by the request.
|
|
.TP 1i
|
|
.B BadValue
|
|
Some numeric value falls outside the range of values accepted by the request.
|
|
Unless a specific range is specified for an argument, the full range defined
|
|
by the argument's type is accepted.
|
|
Any argument defined as a set of
|
|
alternatives can generate this error.
|
|
.SH "SEE ALSO"
|
|
\fI\*(xL\fP
|