QT 4.2 widget setmask problem

**PiXeL16** · 28th February 2007, 03:09

Sure, this is basically my code.

Qt Code:

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QPixmap pixmap("transparentImage.png");
	    QImage image("transparentImage.png");
	    QBitmap bt();
 
 
 
		//Create the mask
		 image = image.createAlphaMask(Qt::AutoColor);
 
 
	     bt= QBitmap::fromImage(image,Qt::AutoColor);
	     pixmap.setMask(bt);
 
 
 
		//Aply the mask to the widget
		_mainWidget->setMask(pixmap.mask());

QPixmap pixmap("transparentImage.png");
	    QImage image("transparentImage.png");
	    QBitmap bt();
		


		//Create the mask
		 image = image.createAlphaMask(Qt::AutoColor);
		 
		 
	     bt= QBitmap::fromImage(image,Qt::AutoColor);
	     pixmap.setMask(bt);

		 

		//Aply the mask to the widget
		_mainWidget->setMask(pixmap.mask());

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The result in qt 4.1 is that the mask is applied to the mainwidget and the transparent pixel in the image come clipped.
The result in qt 4.2 is that the transparent pixels in the image are black, and looks like the mask is not been applied

Any help plz

THanks
CJC