da/d32/qtbase_2src_2widgets_2doc_2snippets_2widget-mask_2main_8cpp_source.html

// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause


#include <QtGui>


int main(int argc, char *argv[])

{

    QApplication app(argc, argv);

    QLabel topLevelLabel;

    QPixmap pixmap(":/images/tux.png");

    topLevelLabel.setPixmap(pixmap);

    topLevelLabel.setMask(pixmap.mask());

    topLevelLabel.show();

    return app.exec();

}


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:2560

QLabel
The QLabel widget provides a text or image display.
Definition qlabel.h:20

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.

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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