Qt4.1 Transparent Widget

[jpn]

Override QWidget::resizeEvent(). Here's a pseudo algo:

resizeEvent
{
   // include title and frames
   region = frameGeometry // frameGeometry relative to the widget (not global)
 
   // exclude the area inside frames
   region -= geometry // geometry relative to the widget (not global)
 
   // include children
   region += childrenRegion
 
   // apply mask
   setMask region
}

resizeEvent
{
   // include title and frames
   region = frameGeometry // frameGeometry relative to the widget (not global)

   // exclude the area inside frames
   region -= geometry // geometry relative to the widget (not global)

   // include children
   region += childrenRegion

   // apply mask
   setMask region
}

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PS. The indexing feature in Qt Assistant is powerful. Try entering "keywords" used in above pseudo code..