GdPicture.NET.14.API~GdPicture14.GdPictureImaging~TwainOpenDefaultSource(Int32)

public bool TwainOpenDefaultSource( 
   int HANDLE
)

public function TwainOpenDefaultSource( 
    HANDLE: Integer
): Boolean;

public function TwainOpenDefaultSource( 
   HANDLE : int
) : boolean;

public: bool TwainOpenDefaultSource( 
   int HANDLE
)

public:
bool TwainOpenDefaultSource( 
   int HANDLE
)

'Declaration
 
Public Overloads Function TwainOpenDefaultSource( _
   ByVal HANDLE As Integer _
) As Boolean

Parameters

HANDLE: A window handle, that will act as the Source's parent, means Me.Handle or this.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.

Return Value

true if the method has been followed successfully, otherwise false. It is recommend to use the GdPictureImaging.TwainGetLastResultCode and the GdPictureImaging.TwainGetLastConditionCode methods to identify the specific reason for the method's failure, if any.

Just to inform you, that the current TWAIN state is TwainStatus.TWAIN_SOURCE_OPEN (State 4) after successfully following this method. Use the GdPictureImaging.TwainGetState method to find out the current TWAIN state within the on-going session.

This method requires the Document Capture (TWAIN / WIA) component to run.

Reference

GdPictureImaging Class
GdPictureImaging Members
Overload List
TwainGetState Method
TwainSelectSource(Int32) Method
TwainGetCurrentSourceName(Int32) Method
TwainGetDefaultSourceName(Int32) Method
TwainGetLastResultCode Method
TwainGetLastConditionCode Method
TwainCloseSource Method