'Declaration
<SRCategoryAttribute("CatKey")> <SRDescriptionAttribute("PreviewKeyDownDescr")> Public Event PreviewKeyDown As System.Windows.Forms.PreviewKeyDownEventHandler
'Usage
Dim instance As LicenseDialog Dim handler As System.Windows.Forms.PreviewKeyDownEventHandler AddHandler instance.PreviewKeyDown, handler
[SRCategory("CatKey")] [SRDescription("PreviewKeyDownDescr")] public event System.Windows.Forms.PreviewKeyDownEventHandler PreviewKeyDown
public event PreviewKeyDown: System.Windows.Forms.PreviewKeyDownEventHandler;
In JScript, you can handle the events defined by another class, but you cannot define your own.
[SRCategory("CatKey")] [SRDescription("PreviewKeyDownDescr")] public: __event System.Windows.Forms.PreviewKeyDownEventHandler* PreviewKeyDown
[SRCategory("CatKey")] [SRDescription("PreviewKeyDownDescr")] public: event System.Windows.Forms.PreviewKeyDownEventHandler^ PreviewKeyDown
Event Data
The event handler receives an argument of type System.Windows.Forms.PreviewKeyDownEventArgs containing data related to this event. The following PreviewKeyDownEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Alt | Gets a value indicating whether the ALT key was pressed. |
Control | Gets a value indicating whether the CTRL key was pressed. |
IsInputKey | Gets or sets a value indicating whether a key is a regular input key. |
KeyCode | Gets the keyboard code for a System.Windows.Forms.Control.KeyDown or System.Windows.Forms.Control.KeyUp event. |
KeyData | Gets the key code combined with key modifiers such as the SHIFT, CONTROL, and ALT keys for a System.Windows.Forms.Control.KeyDown or System.Windows.Forms.Control.KeyUp event. |
KeyValue | Gets the keyboard value for a System.Windows.Forms.Control.KeyDown or System.Windows.Forms.Control.KeyUp event. |
Modifiers | Gets the modifier flags for a System.Windows.Forms.Control.KeyDown or System.Windows.Forms.Control.KeyUp event. |
Shift | Gets a value indicating whether the SHIFT key was pressed. |
Requirements