Public Function SelectDeviceDlg( _
   ByVal owner As IWin32Window, _
   ByVal deviceType As WiaDeviceType, _
   ByVal flags As WiaSelectSourceFlags _
) As DialogResult

Visual Basic (Usage)	Copy Code
Dim instance As WiaSession Dim owner As IWin32Window Dim deviceType As WiaDeviceType Dim flags As WiaSelectSourceFlags Dim value As DialogResult   value = instance.SelectDeviceDlg(owner, deviceType, flags)

public DialogResult SelectDeviceDlg( 
   IWin32Window owner,
   WiaDeviceType deviceType,
   WiaSelectSourceFlags flags
)

public:
DialogResult SelectDeviceDlg( 
   IWin32Window^ owner,
   WiaDeviceType deviceType,
   WiaSelectSourceFlags flags
) 

Parameters

owner

Window handle of your application window.

deviceType

Specifies which type of WIA device to use. Possible values are:

Value	Meaning
WiaDeviceType.Default	Generic WIA device. During device enumerations, this constant is used to enumerate all WIA devices. This is the default value.
WiaDeviceType.Scanner	The device is a scanner.
WiaDeviceType.DigitalCamera	The device is a camera. Note that this type of device is not supported by Windows Vista and later.
WiaDeviceType.StreamingVideo	The device contains streaming video. Note that this type of device is not supported by Windows Server 2003, Windows Vista, or later.

flags

Flag that determines certain actions of the WIA image acquisition selection dialog box. Possible values are:

Value	Meaning
WiaSelectSourceFlags.None	Default behavior for the device image acquisition dialog box.
WiaSelectSourceFlags.NoDefault	Display the dialog box even if there is only one matching device.

Return Value

This function creates and displays the Select Device dialog box so the user can select a WIA device for image acquisition.

Particular types of devices may be displayed to the user by specifying the device types through the deviceType parameter.

If only one device meets the specification, the SelectDeviceDlg does not display the Select Device dialog box. Override this behavior and force the SelectDeviceDlg to display the Select Device dialog box by passing NoDefault as the value for the flags parameter.

For more information, refer to How to Acquire from the WIA Source.

For more information, refer to Managing WIA Sources.

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

Reference