103 lines
3.3 KiB
Groff
103 lines
3.3 KiB
Groff
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.\" $XFree86$
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.\"
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.\" Copyright 2004 Red Hat Inc., Durham, North Carolina.
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.\" All Rights Reserved.
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation on the rights to use, copy, modify, merge,
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.\" publish, distribute, sublicense, and/or sell copies of the Software,
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.\" and to permit persons to whom the Software is furnished to do so,
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.\" subject to the following conditions:
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.\"
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.\" he above copyright notice and this permission notice (including the
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.\" next paragraph) shall be included in all copies or substantial
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.\" portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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.\" NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
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.\" BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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.\" ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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.\" CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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.\" SOFTWARE.
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.TH DMXChangeDesktopAttributes 3X __vendorversion__
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.SH NAME
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DMXChangeDesktopAttributes \- change global bounding box
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.SH SYNOPSIS
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.B #include <X11/extensions/dmxext.h>
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.sp
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.nf
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.BI "int DMXChangeDesktopAttributes(Display " *dpy ,
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.BI " unsigned int " mask ,
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.BI " DMXDesktopAttributes " *attr );
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.fi
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.SH DESCRIPTION
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.B DMXChangeDesktopAttributes()
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resizes the bounding box of the whole screen when using the Xinerama
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extension. Otherwise, it has no effect on the screen layout.
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An attribute mask is placed in
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.I mask
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and the attributes to change are placed in
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.IR attr .
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.PP
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The values that are used to compute
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.I mask
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are as follows:
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.sp
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.nf
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DMXDesktopWidth
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DMXDesktopHeight
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DMXDesktopShiftX
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DMXDesktopShiftY
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.fi
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.PP
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The
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.B DMXDesktopAttributes
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structure is:
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.sp
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.nf
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typedef struct {
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unsigned int width;
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unsigned int height;
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int shiftX;
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int shiftY;
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} DMXDesktopAttributes;
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.fi
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.PP
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.I width " and " height
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specify the new width and height for the bounding box.
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.I shiftX " and " shiftY
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specify where the Xinerama origin will be placed with respect to the
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origin of the new bounding box. This allows the left and upper edges of
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the bounding box to be changed without changing the visual position of
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the windows on the desktop. If
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.I width " or " height
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is not specified, the current values will be used. If
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.I shiftX " or " shiftY
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is not specified, 0 will be used.
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.PP
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All coordinants are in the global DMX coordinant system. If Xinerama is
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not active, an error will be generated.
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.SH "RETURN VALUE"
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.B DMXChangeDesktopAttributes()
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will return 0 on success,
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.B DmxBadXinerama
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if Xinerama is not active,
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.B DmxBadValue
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if the size of the bounding box is too large, and
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.B DmxBadReply
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if there was a protocol error.
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.PP
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.B DMXChangeDesktopAttributes()
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can generate
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.B BadLength
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(if the request is malformed, which should never happen when using this
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library interface), and
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.B BadValue
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(if any values are out of range).
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.SH "SEE ALSO"
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.BR DMXGetDesktopAttributes "(3X), " DMX "(3X), " Xdmx (1)
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