OpenGL and DragImage
lazarus / 70-OpenGL

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Ocye · 2013-11-05 13:57

I want to use OpenGLContext together with a self made dragimage. That
works perfectly with Gtk2 but not on Windows. The dragimage flickers,
ie. it shows only when moved (and thereby gets repainted) and is
overridden by the OpenGL canvas. What can I do?

PS: DoubleBuffered is active.

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User137 · 2013-11-05 19:45

It's expected to flicker, no idea why it works with Gtk2. You can
always put your image in a texture and show it with OpenGL.

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Ocye · 2013-11-05 20:08

Ugh! Second step before the first... ;-)
(Thanks for the reply)