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-'\" t
-.TH QBitmap 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
-.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the
-.\" license file included in the distribution for a complete license
-.\" statement.
-.\"
-.ad l
-.nh
-.SH NAME
-QBitmap \- Monochrome (1-bit depth) pixmaps
-.SH SYNOPSIS
-\fC#include <ntqbitmap.h>\fR
-.PP
-Inherits QPixmap.
-.PP
-.SS "Public Members"
-.in +1c
-.ti -1c
-.BI "\fBQBitmap\fR ()"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( int w, int h, bool clear = FALSE, QPixmap::Optimization optimization = QPixmap::DefaultOptim )"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( const QSize & size, bool clear = FALSE, QPixmap::Optimization optimization = QPixmap::DefaultOptim )"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( int w, int h, const uchar * bits, bool isXbitmap = FALSE )"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( const QSize & size, const uchar * bits, bool isXbitmap = FALSE )"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( const QBitmap & bitmap )"
-.br
-.ti -1c
-.BI "\fBQBitmap\fR ( const QString & fileName, const char * format = 0 )"
-.br
-.ti -1c
-.BI "QBitmap & \fBoperator=\fR ( const QBitmap & bitmap )"
-.br
-.ti -1c
-.BI "QBitmap & \fBoperator=\fR ( const QPixmap & pixmap )"
-.br
-.ti -1c
-.BI "QBitmap & \fBoperator=\fR ( const QImage & image )"
-.br
-.ti -1c
-.BI "QBitmap \fBxForm\fR ( const QWMatrix & matrix ) const"
-.br
-.in -1c
-.SH DESCRIPTION
-The QBitmap class provides monochrome (1-bit depth) pixmaps.
-.PP
-The QBitmap class is a monochrome off-screen paint device used mainly for creating custom QCursor and QBrush objects, in QPixmap::setMask() and for QRegion.
-.PP
-A QBitmap is a QPixmap with a depth of 1. If a pixmap with a depth greater than 1 is assigned to a bitmap, the bitmap will be dithered automatically. A QBitmap is guaranteed to always have the depth 1, unless it is QPixmap::isNull() which has depth 0.
-.PP
-When drawing in a QBitmap (or QPixmap with depth 1), we recommend using the QColor objects \fCQt::color0\fR and \fCQt::color1\fR. Painting with \fCcolor0\fR sets the bitmap bits to 0, and painting with \fCcolor1\fR sets the bits to 1. For a bitmap, 0-bits indicate background (or transparent) and 1-bits indicate foreground (or opaque). Using the \fCblack\fR and \fCwhite\fR QColor objects make no sense because the QColor::pixel() value is not necessarily 0 for black and 1 for white.
-.PP
-The QBitmap can be transformed (translated, scaled, sheared or rotated) using xForm().
-.PP
-Just like the QPixmap class, QBitmap is optimized by the use of implicit sharing, so it is very efficient to pass QBitmap objects as arguments.
-.PP
-See also QPixmap, QPainter::drawPixmap(), bitBlt(), Shared Classes, Graphics Classes, Image Processing Classes, and Implicitly and Explicitly Shared Classes.
-.SH MEMBER FUNCTION DOCUMENTATION
-.SH "QBitmap::QBitmap ()"
-Constructs a null bitmap.
-.PP
-See also QPixmap::isNull().
-.SH "QBitmap::QBitmap ( int w, int h, bool clear = FALSE, QPixmap::Optimization optimization = QPixmap::DefaultOptim )"
-Constructs a bitmap with width \fIw\fR and height \fIh\fR.
-.PP
-The contents of the bitmap is uninitialized if \fIclear\fR is FALSE; otherwise it is filled with pixel value 0 (the QColor \fCQt::color0\fR).
-.PP
-The optional \fIoptimization\fR argument specifies the optimization setting for the bitmap. The default optimization should be used in most cases. Games and other pixmap-intensive applications may benefit from setting this argument; see QPixmap::Optimization.
-.PP
-See also QPixmap::setOptimization() and QPixmap::setDefaultOptimization().
-.SH "QBitmap::QBitmap ( const QSize & size, bool clear = FALSE, QPixmap::Optimization optimization = QPixmap::DefaultOptim )"
-This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
-.PP
-Constructs a bitmap with the size \fIsize\fR.
-.PP
-The contents of the bitmap is uninitialized if \fIclear\fR is FALSE; otherwise it is filled with pixel value 0 (the QColor \fCQt::color0\fR).
-.PP
-The optional \fIoptimization\fR argument specifies the optimization setting for the bitmap. The default optimization should be used in most cases. Games and other pixmap-intensive applications may benefit from setting this argument; see QPixmap::Optimization.
-.SH "QBitmap::QBitmap ( int w, int h, const uchar * bits, bool isXbitmap = FALSE )"
-Constructs a bitmap with width \fIw\fR and height \fIh\fR and sets the contents to \fIbits\fR.
-.PP
-The \fIisXbitmap\fR flag should be TRUE if \fIbits\fR was generated by the X11 bitmap program. The X bitmap bit order is little endian. The QImage documentation discusses bit order of monochrome images.
-.PP
-Example (creates an arrow bitmap):
-.PP
-.nf
-.br
- uchar arrow_bits[] = { 0x3f, 0x1f, 0x0f, 0x1f, 0x3b, 0x71, 0xe0, 0xc0 };
-.br
- QBitmap bm( 8, 8, arrow_bits, TRUE );
-.br
-.fi
-.SH "QBitmap::QBitmap ( const QSize & size, const uchar * bits, bool isXbitmap = FALSE )"
-This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
-.PP
-Constructs a bitmap with the size \fIsize\fR and sets the contents to \fIbits\fR.
-.PP
-The \fIisXbitmap\fR flag should be TRUE if \fIbits\fR was generated by the X11 bitmap program. The X bitmap bit order is little endian. The QImage documentation discusses bit order of monochrome images.
-.SH "QBitmap::QBitmap ( const QBitmap & bitmap )"
-Constructs a bitmap that is a copy of \fIbitmap\fR.
-.SH "QBitmap::QBitmap ( const QString & fileName, const char * format = 0 )"
-Constructs a bitmap from the file \fIfileName\fR. If the file does not exist or is of an unknown format, the bitmap becomes a null bitmap.
-.PP
-The parameters \fIfileName\fR and \fIformat\fR are passed on to QPixmap::load(). Dithering will be performed if the file format uses more than 1 bit per pixel.
-.PP
-See also QPixmap::isNull(), QPixmap::load(), QPixmap::loadFromData(), QPixmap::save(), and QPixmap::imageFormat().
-.SH "QBitmap & QBitmap::operator= ( const QBitmap & bitmap )"
-Assigns the bitmap \fIbitmap\fR to this bitmap and returns a reference to this bitmap.
-.SH "QBitmap & QBitmap::operator= ( const QPixmap & pixmap )"
-This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
-.PP
-Assigns the pixmap \fIpixmap\fR to this bitmap and returns a reference to this bitmap.
-.PP
-Dithering will be performed if the pixmap has a QPixmap::depth() greater than 1.
-.SH "QBitmap & QBitmap::operator= ( const QImage & image )"
-This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
-.PP
-Converts the image \fIimage\fR to a bitmap and assigns the result to this bitmap. Returns a reference to the bitmap.
-.PP
-Dithering will be performed if the image has a QImage::depth() greater than 1.
-.SH "QBitmap QBitmap::xForm ( const QWMatrix & matrix ) const"
-Returns a transformed copy of this bitmap by using \fImatrix\fR.
-.PP
-This function does exactly the same as QPixmap::xForm(), except that it returns a QBitmap instead of a QPixmap.
-.PP
-See also QPixmap::xForm().
-
-.SH "SEE ALSO"
-.BR http://doc.trolltech.com/ntqbitmap.html
-.BR http://www.trolltech.com/faq/tech.html
-.SH COPYRIGHT
-Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
-license file included in the distribution for a complete license
-statement.
-.SH AUTHOR
-Generated automatically from the source code.
-.SH BUGS
-If you find a bug in Qt, please report it as described in
-.BR http://doc.trolltech.com/bughowto.html .
-Good bug reports help us to help you. Thank you.
-.P
-The definitive Qt documentation is provided in HTML format; it is
-located at $QTDIR/doc/html and can be read using Qt Assistant or with
-a web browser. This man page is provided as a convenience for those
-users who prefer man pages, although this format is not officially
-supported by Trolltech.
-.P
-If you find errors in this manual page, please report them to
-.BR qt-bugs@trolltech.com .
-Please include the name of the manual page (qbitmap.3qt) and the Qt
-version (3.3.8).