Redigera

Dela via


PrintDocument.OnBeginPrint(PrintEventArgs) Method

Definition

Raises the BeginPrint event. It is called after the Print() method is called and before the first page of the document prints.

protected public:
 virtual void OnBeginPrint(System::Drawing::Printing::PrintEventArgs ^ e);
protected:
 virtual void OnBeginPrint(System::Drawing::Printing::PrintEventArgs ^ e);
protected internal virtual void OnBeginPrint (System.Drawing.Printing.PrintEventArgs e);
protected virtual void OnBeginPrint (System.Drawing.Printing.PrintEventArgs e);
abstract member OnBeginPrint : System.Drawing.Printing.PrintEventArgs -> unit
override this.OnBeginPrint : System.Drawing.Printing.PrintEventArgs -> unit
Protected Friend Overridable Sub OnBeginPrint (e As PrintEventArgs)
Protected Overridable Sub OnBeginPrint (e As PrintEventArgs)

Parameters

e
PrintEventArgs

A PrintEventArgs that contains the event data.

Remarks

The OnBeginPrint method allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

When a derived class calls the OnBeginPrint method, it raises the BeginPrint event by invoking the event handler through a delegate. For more information, see Handling and Raising Events.

Notes to Inheritors

When overriding OnBeginPrint(PrintEventArgs) in a derived class, be sure to call the base class's OnBeginPrint(PrintEventArgs) method so that registered delegates receive the event. This method is a good place for initialization.

Applies to

See also