grabwindow.cpp

这是使用Qt编写的一个程序

/***************************************************************************
 *   Copyright (C) 2008 by 蔡火胜   *
 *   [e-mail]   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#include "GrabWindow.h"
#include <QtGui>

GrabWindow::GrabWindow()
{
	setupUi(this);

	//设置各个SpinBox的范围及初始值：
	XSpinBox->setRange(0,width());
	YSpinBox->setRange(0,height());
	WidthSpinBox->setRange(0,width());
	HeightSpinBox->setRange(0,height());
	WidthSpinBox->setValue(width());
	HeightSpinBox->setValue(height());

	return;
}; //GrabWindow::GrabWindow()

void GrabWindow::Grab()
{
	//截图。

	setCursor(Qt::WaitCursor); //鼠标变为忙。

	ThePictureLabel->setPixmap(QPixmap::grabWindow(QApplication::desktop()->winId(),XSpinBox->value(),YSpinBox->value(),WidthSpinBox->value(),HeightSpinBox->value())); //截图。

	setCursor(Qt::ArrowCursor); //鼠标变为正常。

	return;
} //void GrabWindow::Grab()