how to save somtihing drawed on QPaiter to an image?

[cxl2253]

I draw something like line, arc ,eclipse etc on QPaiter ,NOw I want to save them in an image.But how to do it? can anybody help me ?

[munna]

You will need to specify the paint device for the QPainter

Something like

QPixmap pm(width,height);
QPainter painter(&pm);
....
....
//Your drawing code
....
pm.save(filename,format);

QPixmap pm(width,height);
QPainter painter(&pm);
....
....
//Your drawing code
....
pm.save(filename,format);

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[cxl2253]

thanks for reply soon. YES, what you said can pait them to an image .but there comes another problem, which will not show on paiter widget . I Want to show them on a widget, but at the same ,i can save to an image file.

why QPAINTER not provide the save function ? just like delphi TCANVAS ?

[jpn]

QPainter can paint on a single QPaintDevice at time. You can use QPainter::setRedirected() to redirect the painting to another device. But maybe QPixmap::grabWidget() is more like what you're after?