qscreencursor.3qt

Linux 下的图形编程环境。

'\" t
.TH QScreenCursor 3qt "5 March 2001" "Trolltech AS" \" -*- nroff -*-
.\" Copyright 1992-2001 Trolltech AS.  All rights reserved.  See the
.\" license file included in the distribution for a complete license
.\" statement.
.\"
.ad l
.nh
.SH NAME
QScreenCursor \- Manages the onscreen mouse cursor in Qt/Embedded. It provides an implementation of a software mouse cursor and can be subclassed by hardware drivers which support a hardware mouse cursor. There may only be one QScreenCursor at a time; it is constructed by
.br
.PP
\fC#include <qgfx_qws.h>\fR
.PP
.SS "Public Members"
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.BI "\fBQScreenCursor\fR () "
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.BI "virtual \fB~QScreenCursor\fR () "
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.BI "virtual void \fBinit\fR ( SWCursorData * " "da" ", bool " "init" " = FALSE ) "
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.BI "virtual void \fBset\fR ( const QImage & " "image" ", int " "hotx" ", int hoty ) "
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.BI "virtual void \fBmove\fR ( int " "x" ", int y ) "
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.BI "virtual void \fBshow\fR () "
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.BI "virtual void \fBhide\fR () "
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.BI "virtual bool \fBrestoreUnder\fR ( const QRect & " "r" ", QGfxRasterBase * " "g" " = 0 ) "
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.BI "virtual void \fBsaveUnder\fR () "
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.BI "virtual void \fBdrawCursor\fR () "
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.BI "void \fBdraw\fR () "
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.BI "virtual bool \fBsupportsAlphaCursor\fR () "
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.SS "Static Public Members"
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.BI "bool \fBenabled\fR () "
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.SH DESCRIPTION
The QScreenCursor class manages the onscreen mouse cursor in Qt/Embedded. It provides an implementation of a software mouse cursor and can be subclassed by hardware drivers which support a hardware mouse cursor. There may only be one QScreenCursor at a time; it is constructed by QScreen or one of its descendants.
.PP
This class is non-portable. It is available \fIonly\fR in Qt/Embedded. It is also internal - this documentation is intended for those subclassing it in hardware drivers, not for application developers.
.SH MEMBER FUNCTION DOCUMENTATION
.SH "QScreenCursor::QScreenCursor ()"
Constructs a screen cursor.
.SH "QScreenCursor::~QScreenCursor () \fC[virtual]\fR"
Destructs a screen cursor, deleting its gfxes, cursor image and under-cursor storage.
.SH "void QScreenCursor::move ( int x, int y ) \fC[virtual]\fR"
Move the mouse cursor to point x,y on the screen. This should be done in such a way that the hotspot of the cursor is at x,y - e.g. if the hotspot is at 5,5 within the image then the top left of the image should be at x-5,y-5.
.SH "bool QScreenCursor::restoreUnder ( const QRect & r, QGfxRasterBase * g = 0 ) \fC[virtual]\fR"
This is relevant to only the software mouse cursor and should be
reimplemented as a null method in hardware cursor drivers. It redraws
what was under the mouse cursor when the cursor is moved.
.SH "SEE ALSO"
.BR http://doc.trolltech.com/qscreencursor.html
.BR http://www.trolltech.com/faq/tech.html
.SH COPYRIGHT
Copyright 1992-2001 Trolltech AS, 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 make our job much simpler. Thank you.
.P
In case of content or formattting problems with this manual page, please
report them to
.BR [e-mail] .
Please include the name of the manual page (qscreencursor.3qt) and the Qt
version (2.3.0).