Regular Rep: 6 Joined: 20 Nov 2004 Posts: 1,286 | You can only use DirectDraw on one device at the time. DirectDraw basically sends video data straight to the output device (monitor/tv/whatever) without going through the video buffer (in the video card i presume) (so as to speed up performance). (That’s why when you hit print screen for directdraw surfaces you get a black area - print screen only gets data from the video buffer).
OK enough about the intro. As I said I think you can only use one device at the time for DirectDraw. What you’d have to do is switch main display device. Right click on your desktop, go to properties, then go to the settings tab. If you click on the drop-down menu for your display you should have two devices. If you select the other one it will make it the default device.
If this doesn’t work, or you want the video to be displayed on both devices, you can turn off directdraw. Right click your desktop, choose properties. Go to the settings tab, then click advanced. Then click on the troubleshooting tab. Drag the tab all the way to the left (or far enough left to see video on both devices).
Note: Disabling DirectDraw globally can take a big hit on video performance, so i would avoid that method unless there is no other choice. |