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GLCanvas does not receive paint events [message #989526]

Thu, 06 December 2012 10:58

hortiz Mising name
Messages: 77
Registered: July 2009

Member

Hi!!!

We are using a glCanvas to display some data. A PaintListener is attached to this glCanvas and is in charge to update the image when necessary. Sometimes, we are interested in forcing the paint event. After realizing that doing a shell.layout() does not generate the paint event (when it includes a glCanvas) we decided to use the methods redraw() and update(). None of these methods generate the paint event.

However, this process (redraw() + update()) works perfectly when using a Canvas. We do not understand why as glCanvas inherits from Canvas...

Helene

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