digital camera - TWAIN?

Hi,

I'm using the capCreateCaptureWindowA API to display video from a digital camera (works fine). A customer sent me an email asking me "does your program uses twain drivers, VFW or WMD to load images from the camera?".

I am 'thinking' the answer is TWAIN, but I have no clue what VFW or WMD is. Is there anyone out there that can answer this question for me??

Thanks in advance!

Possibly:

Video For Windows (VFW)
Windows Driver Model (WDM)

Industry standard software interface such as Multimedia Control Interface (MCI), Video for Window (VFW), and Windows Driver Model (WDM).


Edit: Is it WMD or WDM?




More:
Microsoft Windows VFW Video Capture
Microsoft Windows WDM Video Capture




Bruce.

Do you know which one that API uses though? That is the important question. I found it on planet-source-code a long time ago. I really don't understand any of this stuff...

here is the 'connect' function, which might help answer the question for someone who knows what they are talking about.

VB Code:

Private Function Connect() As Boolean
    Dim lpszName As String * 100
    Dim lpszVer As String * 100
    Dim Caps As CAPDRIVERCAPS
        
    '//Create Capture Window
    capGetDriverDescriptionA 0, lpszName, 100, lpszVer, 100  '// Retrieves driver info
    lwndC = capCreateCaptureWindowA(lpszName, WS_CAPTION Or WS_THICKFRAME Or WS_VISIBLE Or WS_CHILD, _
                                    ScaleX(2000, vbTwips, vbPixels), _
                                    ScaleX(100, vbTwips, vbPixels), _
                                    100, _
                                    120, _
                                    Me.hWnd, 0)
 
    '// Set title of window to name of driver
    SetWindowText lwndC, lpszName
    
    '// Set the video stream callback function
    capSetCallbackOnStatus lwndC, AddressOf MyStatusCallback
    capSetCallbackOnError lwndC, AddressOf MyErrorCallback
    
    '// Connect the capture window to the driver
    If capDriverConnect(lwndC, 0) Then
        '/////
        '// Only do the following if the connect was successful.
        '// if it fails, the error will be reported in the call
        '// back function.
        '/////
        '// Get the capabilities of the capture driver
        capDriverGetCaps lwndC, VarPtr(Caps), Len(Caps)
        
        '// If the capture driver does not support a dialog, grey it out
        '// in the menu bar.
'        If Caps.fHasDlgVideoSource = 0 Then mnuSource.Enabled = False
'        If Caps.fHasDlgVideoFormat = 0 Then mnuFormat.Enabled = False
'        If Caps.fHasDlgVideoDisplay = 0 Then mnuDisplay.Enabled = False
        
        '// Turn Scale on
        capPreviewScale lwndC, True
            
        '// Set the preview rate in milliseconds
        capPreviewRate lwndC, 66
        
        '// Start previewing the image from the camera
        capPreview lwndC, True
            
        '// Resize the capture window to show the whole image
        ResizeCaptureWindow lwndC
        
        Connect = True
    Else
        Connect = False
    End If
 
End Function