Using DirectShow , If i need to capture bitmap from Live video what is the interface i need to use..?? Also, Is there any interface thru which i can the id of the connected hardware ( webcam or handycam in my case..!! ) Thanks in advance, Pramod.

When am building my application using DirectX(DirectShow) components, am getting the following Linker errors: Linking... error LNK2001: unresolved external symbol _IID_IMediaEvent error LNK2001: unresolved external symbol _IID_IMediaControl error LNK2001: unresolved external symbol _CLSID_FilterGraph error LNK2001: unresolved external symbol _IID_IGraphBuilder Debug/trial_DShow.exe : fatal error LNK1120: 4 unresolved externals Can anyone help in what scenario does the above errors pitch in.?? Thanks, Pramod.

Thanks all, One more thing, when i tried to execute a sample application ( with Direct X ) am getting the following error especially with "strmif.h" stating at "typedef DWORD_PTR HSEMAPHORE; " as missing ;(semicolon) also, unexpected end of file... I have neither modified this file..nor did create this file..in VC 6 application., Can u guide me the root cause for this problem ? should i change/set any parameters for the same..?? Thanks in advance, Pramod.

Ahmed, Thanks for the info, I have a query ? Does the version of DIrectX (9.0c) which i have matter to run the VisSDK application bcoz, when i started compiling am getting errors in files "mmstream.h" and "strmif.h" ? for the SDK to compile - what is the version of Direct X i should use... Thanks, Pramod

Hi, we have an active x controls for webcam interface and i need to create a DLL with VC and use the same in a 3rd party application. i.e i need to control the webcam through DLL During creation of the DLL i dont have any issues, while calling the function from a console application - am getting windows assertion failed error..? Can anyone guide me the settings if i need to make any inorder to control the dll which has activex in it.. Thanks in advance, Pramod.