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main.cpp
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1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
3
4#include <QtGui>
5
6int main(int argc, char *argv[])
7{
8 QApplication app(argc, argv);
10 QLabel topLevelLabel;
11 QPixmap pixmap(":/images/tux.png");
12 topLevelLabel.setPixmap(pixmap);
13 topLevelLabel.setMask(pixmap.mask());
15 topLevelLabel.show();
16 return app.exec();
17}
QApplication
The QApplication class manages the GUI application's control flow and main settings.
Definition qapplication.h:32
QApplication::exec
static int exec()
Enters the main event loop and waits until exit() is called, then returns the value that was set to e...
Definition qapplication.cpp:2564
QLabel
The QLabel widget provides a text or image display.
Definition qlabel.h:20
QLabel::setPixmap
void setPixmap(const QPixmap &)
Definition qlabel.cpp:339
QPixmap
Returns a copy of the pixmap that is transformed using the given transformation transform and transfo...
Definition qpixmap.h:27
QPixmap::mask
QBitmap mask() const
Returns true if this pixmap has an alpha channel, or has a mask, otherwise returns false.
QWidget::setMask
void setMask(const QBitmap &)
Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible.
Definition qwidget.cpp:13065
QWidget::show
void show()
Shows the widget and its child widgets.
Definition qwidget.cpp:7956
main
int main()
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Definition doc_src_objecttrees.cpp:5
pixmap
QPixmap pixmap(":/splash.png")
app
QApplication app(argc, argv)
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