ImageGear .NET v25.2 - Updated
ImGearTWAINBeforePageEventHandler Delegate
ExampleExample 




ImageGear.Twain Assembly > ImageGear.TWAIN Namespace : ImGearTWAINBeforePageEventHandler Delegate
Object which triggered the event.
Data about the event.
This is the delegate used to pass ImGearTWAIN.BeforePage events on to an application event handler.
Syntax
'Declaration
 
Public Delegate Sub ImGearTWAINBeforePageEventHandler( _
   ByVal sender As Object, _
   ByVal e As ImGearTWAINBeforePageEventArgs _
) 
'Usage
 
Dim instance As New ImGearTWAINBeforePageEventHandler(AddressOf HandlerMethod)
public delegate void ImGearTWAINBeforePageEventHandler( 
   object sender,
   ImGearTWAINBeforePageEventArgs e
)
public: __gc __delegate void ImGearTWAINBeforePageEventHandler( 
   Object* sender,
   ImGearTWAINBeforePageEventArgs* e
)
public delegate void ImGearTWAINBeforePageEventHandler( 
   Object^ sender,
   ImGearTWAINBeforePageEventArgs^ e
)

Parameters

sender
Object which triggered the event.
e
Data about the event.
Remarks

The delegate follows the standard .NET event model. The ImGearTWAIN.BeforePage event occurs before scanning a page. It provides the page number to be scanned and gives an opportunity to cancel scanning.

Here's an example of typical ImGearTWAIN.BeforePage event registration and declaration:

Example
// Event Registration
ImGearTWAIN imGearTWAIN = new ImGearTWAIN();
imGearTWAIN.BeforePage += new ImGearTWAINBeforePageEventHandler(imGearTWAIN_BeforePage);
// Event Declaration
void imGearTWAIN_BeforePage(object sender, ImGearTWAINBeforePageEventArgs e)
{
    // Access event arguments via ImGearTWAINBeforePageEventArgs e 
}
See Also

Reference

ImGearTWAINBeforePageEventHandler Members
ImageGear.TWAIN Namespace
ImGearTWAINBeforePageEventArgs Class

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