Leadtools.Twain Send comments on this topic. | Back to Introduction - All Topics | Help Version 15.8.31
Startup Method
See Also  Example
Leadtools.Twain Namespace > TwainSession Class : Startup Method




owner
The parent window, this may not be NULL.
manufacturer
Optional name of the application's manufacturer.
productFamily
Optional product family name.
version
Version information.
application
Optional application name.
flags
Flag determines the Startup method behavior
Initializes the TWAIN session.

Syntax

Visual Basic (Declaration) 
Public Sub Startup( _
   ByVal owner As IWin32Window, _
   ByVal manufacturer As String, _
   ByVal productFamily As String, _
   ByVal version As String, _
   ByVal application As String, _
   ByVal flags As TwainStartupFlags _
)
Visual Basic (Usage)Copy Code
Dim instance As TwainSession
Dim owner As IWin32Window
Dim manufacturer As String
Dim productFamily As String
Dim version As String
Dim application As String
Dim flags As TwainStartupFlags
 
instance.Startup(owner, manufacturer, productFamily, version, application, flags)
C# 
public void Startup( 
   IWin32Window owner,
   string manufacturer,
   string productFamily,
   string version,
   string application,
   TwainStartupFlags flags
)
Managed Extensions for C++ 
public: void Startup( 
   IWin32Window owner,
   string* manufacturer,
   string* productFamily,
   string* version,
   string* application,
   TwainStartupFlags flags
)
C++/CLI 
public:
void Startup( 
   IWin32Window owner,
   String^ manufacturer,
   String^ productFamily,
   String^ version,
   String^ application,
   TwainStartupFlags flags
)

Parameters

owner
The parent window, this may not be NULL.
manufacturer
Optional name of the application's manufacturer.
productFamily
Optional product family name.
version
Version information.
application
Optional application name.
flags
Flag determines the Startup method behavior

Example

Visual BasicCopy Code
Public Sub StartupExample(ByVal parent As IWin32Window)
   Dim session As TwainSession = New TwainSession()
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None)

   Try
      session.Startup(parent, "LEAD Technologies, Inc.", "LEAD Twain .NET", "Version 14", "LEADTools Twain test sample", TwainStartupFlags.None)
   Catch ex As Exception
      MessageBox.Show(ex.Message)
   End Try

   session.Shutdown()
End Sub
C#Copy Code
public void StartupExample(IWin32Window parent) 
{ 
   TwainSession session = new TwainSession(); 
   session.Startup(parent, "manufacturer", "productFamily", "version", "application", TwainStartupFlags.None); 
 
   try 
   { 
      session.Startup(parent, "LEAD Technologies, Inc.", "LEAD Twain .NET", "Version 14", "LEADTools Twain test sample", TwainStartupFlags.None); 
   } 
   catch (Exception ex) 
   { 
      MessageBox.Show(ex.Message); 
   } 
 
   session.Shutdown(); 
}

Remarks

Please note that a TWAIN session is a communication session between Leadtools TWAIN and your TWAIN sources. The internal TWAIN session handle that is created provides the user access to this TWAIN session. This method must be called before calling any other methods that require a TWAIN session.
When the TWAIN session is no longer needed, it should be end by calling the Shutdown method. For every call to the Startup method there must be a call to the Shutdown method.
For more information, refer to Initializing a TWAIN Source.
For more information, refer to Freeing the TWAIN Session.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also