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i am working on camera capturte project.
i have to connect two camera simultaneously.
hMyWindow1 = capCreateCaptureWindow("", WS_CHILD | WS_VISIBLE, rect1.left,,rect1.right,rect1.bottom, hw_video1, 0);

hMyWindow2 = capCreateCaptureWindow("", WS_CHILD | WS_VISIBLE, rect2.left,,rect2.right,rect2.bottom, hw_video2, 0);

Now second window is also get connected to first web cam for changing it to second webcam i have to use

but i want to perform this task programmatic so that two web cams got connected on two different window n user need not to select videosource via dialog (created by using
Updated 17-Jan-12 19:06pm
Member 12193780 9-Mar-16 5:11am    
Hey, ever get the chance to solve this?

1 solution


While Sending the WM_CAP_DRIVER_CONNECT message , the third parameter refers to the DriverIndex, since you are using two webcams, you have to send two messages ,one with DriverIndex as 0, and other with DriverIndex as 1.

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pranav_30 18-Jan-12 1:50am    
i dont think so because i have already try this thing after setting that value to "1" WM_CAP_DRIVER_CONNECT returns 0 that means driver not connected.
Satheesh1546 18-Jan-12 2:43am    
Are you using the same driver for both webcams?
pranav_30 18-Jan-12 3:30am    
its normal web cam. i dont know much about drivers but its microsoft wdm .
Satheesh1546 18-Jan-12 6:57am    
Since, most of the Webcam's use Microsoft WDM driver. So i think connecting to two camera's simultaneously is not possible with VFW. Better to use DirectX.
pranav_30 18-Jan-12 7:36am    
i am able to connect two camera simultaneously. even i have recorded video from both camera simultaneously.
i just want to do the work of "SendMessage(hMyWindow2,WM_CAP_DLG_VIDEOSOURCE,0,0);" by me itself. so that user need not to choose camera.

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