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Raises the KeyDown event.
Namespace: Microsoft.VisualBasic.PowerPacks
Assembly: Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)
Syntax
'Declaration
Protected Overrides Sub OnKeyDown ( _
e As KeyEventArgs _
)
protected override void OnKeyDown(
KeyEventArgs e
)
protected:
virtual void OnKeyDown(
KeyEventArgs^ e
) override
abstract OnKeyDown :
e:KeyEventArgs -> unit
override OnKeyDown :
e:KeyEventArgs -> unit
protected override function OnKeyDown(
e : KeyEventArgs
)
Parameters
e
Type: System.Windows.Forms.KeyEventArgsAn object that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The OnKeyDown method also enables derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When you override OnKeyDown in a derived class, make sure to call the OnKeyDown method of the base class so that registered delegates receive the event.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
See Also
Reference
Microsoft.VisualBasic.PowerPacks Namespace