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ActiveX DDraw Surface Blt too Slow on Internet Explorer 6
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yigi...@gmail.com
May 9, 2007, 4:59:33 AM5/9/07
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Hi all, I have implemented an ActiveX control for rendering video. I
use DDraw for blitting images from an offscreen surface to a primary
surface. Everything works fine (Blt's are very fast 0-5msecs) when I
test my ActiveX on a dialog application or on Microsoft ActiveX Test
Container. However, when I test the ActiveX on Internet Explorer by
embedding it on an HTML page, the Blt from offscreen to primary
surface takes too much time (45-70 msecs). I log all the error return
cases from DDraw, I don't get any error though.
use DDraw for blitting images from an offscreen surface to a primary
surface. Everything works fine (Blt's are very fast 0-5msecs) when I
test my ActiveX on a dialog application or on Microsoft ActiveX Test
Container. However, when I test the ActiveX on Internet Explorer by
embedding it on an HTML page, the Blt from offscreen to primary
surface takes too much time (45-70 msecs). I log all the error return
cases from DDraw, I don't get any error though.
If anyone has an idea why this could happen, it is more than
appreciated. Thanks.
Yigithan
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