ImageGear .NET v25.2 - Updated
ImageGear.Twain Assembly / ImageGear.TWAIN Namespace / ImGearTWAIN Class / BeforePage Event




In This Topic
    BeforePage Event
    In This Topic
    This event is fired before each page is scanned using any of the scanning methods of ImGearTWAIN.
    Syntax
    'Declaration
     
    Public Event BeforePage As ImGearTWAINBeforePageEventHandler
    'Usage
     
    Dim instance As ImGearTWAIN
    Dim handler As ImGearTWAINBeforePageEventHandler
     
    AddHandler instance.BeforePage, handler
    public event ImGearTWAINBeforePageEventHandler BeforePage
    public: __event ImGearTWAINBeforePageEventHandler* BeforePage
    public:
    event ImGearTWAINBeforePageEventHandler^ BeforePage
    Event Data

    The event handler receives an argument of type ImGearTWAINBeforePageEventArgs containing data related to this event. The following ImGearTWAINBeforePageEventArgs properties provide information specific to this event.

    PropertyDescription
    Gets or sets a value indicating whether to cancel scanning.  
    Gets number of page about to be scanned. The first page is number 1.  
    Remarks

    NOTE: Methods and properties of ImGearTWAIN should not be accessed in the event handler for this event.

    This event can be used by an application to monitor scanning progress (on a per-page basis).

    It can also be used to cancel scanning before scanning the next page, if the application's event handler sets the ImGearTWAINAfterPageEventArgs.CancelScanning property to TRUE.

    See ImGearTWAINBeforePageEventHandler for an example of how to use this event.

    See Also