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GdPictureImaging.TwainGetSourceCount Method
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Returns the number of sources available.

C#
public int TwainGetSourceCount(
    IntPtr HANDLE
);
Visual Basic
Public Function TwainGetSourceCount(
    ByVal HANDLE As IntPtr
) As Integer
Parameters
Parameters 
Description 
HANDLE 
A Window Handle IE: Me.Handle. In most applications you can use nothing but on Citrix and WTS, this must be a top-level window or a child of a top level window.  
Returns

Number of sources available.

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