2006-11-25 09:33:55 -07:00
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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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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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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..
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.ny0
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.TH ImageByteOrder __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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ImageByteOrder, BitmapBitOrder, BitmapPad, BitmapUnit, DisplayHeight, DisplayHeightMM, DisplayWidth, DisplayWidthMM, XListPixmapFormats, XPixmapFormatValues \- image format functions and macros
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.SH SYNTAX
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.HP
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XPixmapFormatValues *XListPixmapFormats\^(\^Display *\fIdisplay\fP, int *\fIcount_return\fP\^);
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.HP
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int ImageByteOrder\^(\^Display *\fIdisplay\fP\^);
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.HP
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int BitmapBitOrder\^(\^Display *\fIdisplay\fP\^);
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.HP
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int BitmapPad\^(\^Display *\fIdisplay\fP\^);
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.HP
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int BitmapUnit\^(\^Display *\fIdisplay\fP\^);
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.HP
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int DisplayHeight\^(\^Display *\fIdisplay\fP\^, \^int \fIscreen_number\fP\^);
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.HP
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int DisplayHeightMM\^(\^Display *\fIdisplay\fP\^, \^int \fIscreen_number\fP\^);
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.HP
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int DisplayWidth\^(\^Display *\fIdisplay\fP\^, \^int \fIscreen_number\fP\^);
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.HP
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int DisplayWidthMM\^(\^Display *\fIdisplay\fP\^, \^int \fIscreen_number\fP\^);
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.SH ARGUMENTS
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.ds Cn pixmap formats that are supported by the display
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.IP \fIcount_return\fP 1i
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Returns the number of \*(Cn.
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.IP \fIscreen_number\fP 1i
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Specifies the appropriate screen number on the host server.
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.SH DESCRIPTION
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The
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.ZN XListPixmapFormats
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function returns an array of
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.ZN XPixmapFormatValues
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structures that describe the types of Z format images supported
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by the specified display.
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If insufficient memory is available,
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.ZN XListPixmapFormats
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returns NULL.
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To free the allocated storage for the
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.ZN XPixmapFormatValues
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structures, use
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.ZN XFree .
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.LP
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The
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.ZN ImageByteOrder
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macro specifies the required byte order for images for each scanline unit in
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XY format (bitmap) or for each pixel value in Z format.
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.LP
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The
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.ZN BitmapBitOrder
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macro returns
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.ZN LSBFirst
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or
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.ZN MSBFirst
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to indicate whether the leftmost bit in the bitmap as displayed
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on the screen is the least or most significant bit in the unit.
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.LP
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The
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.ZN BitmapPad
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macro returns the number of bits that each scanline must be padded.
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.LP
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The
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.ZN BitmapUnit
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macro returns the size of a bitmap's scanline unit in bits.
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.LP
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The
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.ZN DisplayHeight
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macro returns the height of the specified screen in pixels.
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.LP
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The
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.ZN DisplayHeightMM
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macro returns the height of the specified screen in millimeters.
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.LP
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The
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.ZN DisplayWidth
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macro returns the width of the screen in pixels.
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.LP
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The
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.ZN DisplayWidthMM
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macro returns the width of the specified screen in millimeters.
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.SH STRUCTURES
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The
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.ZN XPixmapFormatValues
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structure provides an interface to the pixmap format information
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that is returned at the time of a connection setup.
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It contains:
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.Ds 0
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.TA .5i 3i
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.ta .5i 3i
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typedef struct {
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int depth;
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int bits_per_pixel;
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int scanline_pad;
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} XPixmapFormatValues;
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.De
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.SH "SEE ALSO"
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2010-05-18 13:37:28 -06:00
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AllPlanes(__libmansuffix__),
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BlackPixelOfScreen(__libmansuffix__),
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IsCursorKey(__libmansuffix__),
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XFree(__libmansuffix__)
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2006-11-25 09:33:55 -07:00
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.br
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\fI\*(xL\fP
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