CWnd::GetSafeHwnd() "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow cheers, Alok Gupta

Please do not crosspost things like this.  Start by opening the file and searching for keywords, ones with consistent formatting will be easy to spot.    Try opening the file in an editor and see what you can find.  Have you even tried running strings on it?    Peace! -=- James If you think it costs a lot to do it right, just wait until you find out how much it costs to do it wrong! Tip for new SUV drivers: Professional Driver on Closed Course does not mean your Dumb Ass on a Public Road! DeleteFXPFiles & CheckFavorites (Please rate this post!)

Jack.Fu wrote: Thanks, but where can I find the class??? here http://www.codeproject.com/dialog/findfiledlg.asp[^] "Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow cheers, Alok Gupta

Sorry, I don't know. If it's possible it will probably be a DirectShow function. Most likely a property of the video renderer you are using. You may even be able to acheive it by simply using a different video renderer in your filtergraph. Steve T

Jack.Fu wrote: Is there anyone who knows Trojans??? Yes, Google[^] does. /ravi My new year's resolution: 2048 x 1536 Home | Articles | Freeware | Music ravib@ravib.com