QWSServer : Changing background color

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Hello,

I'm using Qt4.8 on an embedded platform and I would like to change the background color of the QWSServer to set it as transparent.
I tried to change the QWSServer's brush using the function qwsServer->setBackground(QBrush(Qt::transparent)); but it doesn't work.
I also tried Qt::red, Qt::white but the background color remains unchanged.

Does anyone have an idea ?

Thanks.

Here is my initialization code...
@int main(int argc, char *argv[])
{
QApplication a(argc, argv, QApplication::GuiServer);
qwsServer->setBackground(QBrush(Qt::transparent));

CustomWindow w;
w.setGeometry(50, 50, 500, 300);
w.show();
return a.exec();
}
@

blaroche

try this

@#include <QWSServer>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);

#ifdef Q_WS_QWS
app.setOverrideCursor( QCursor( Qt::BlankCursor ) );
QWSServer::setCursorVisible( false );
QWSServer::setBackground(QBrush(Qt::black));
//QWSServer::setBackground(QBrush(Qt::transparent));  // have not tested  
#endif

}@

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Still doesn't work.

Does it work on your side?

Does your background change to black?

blaroche

yes, setting it to white works as well

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What Qt version do you use?

PS : I use Direct FB display driver.

blaroche

Sorry, I'm using 4.8. And not using Direct FB, using QWS_DISPLAY=LinuxFB.

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I have same issue, and figured out it using /etc/directfbrc config. I added option bg-none or bg-color=000000 in config for transparent background. http://directfb.org/docs/directfbrc.5.html

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Thanks all,

The solution of timon works.