KeyEvent Class

Provide information about a KeyEvent, used to encapsulate information about the key that was pressed.

Inheritance Hierarchy

Object
Event
KeyEvent

Namespace: VO
Assembly: VOGUIClasses (in VOGUIClasses.dll) Version: 2.21

Syntax

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 CLASS KeyEvent INHERIT Event

public class KeyEvent : Event

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The KeyEvent type exposes the following members.

Constructors

	Name	Description
	KeyEvent	Initializes a new instance of the KeyEvent class

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Properties

	Name	Description
	ASCIIChar	A numeric value representing the normal ASCII code for the key that caused this KeyEvent.
	Handle	The pointer to the window where the event occurred (Inherited from Event.)
	KeyCode	A constant, indicating the code for the key that was pressed:
	Message	A dword representing the Windows API message associated with the given event. (Inherited from Event.)
	RepeatCount	A numeric value determining whether a user depressed a key repeatedly or held it down for an extended period of time.
	System	A logical value determining whether the Alt key was pressed at the same time as another key (TRUE if yes, FALSE if no).
	Window	An object indicating the window or control in which the event occurred. This is helpful, for example, for distinguishing between similar menu events coming from the same context menu attached to different controls. (Inherited from Event.)

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Fields

	Name	Description
	hWnd	(Inherited from Event.)
	lParam	(Inherited from Event.)
	oWindow	(Inherited from Event.)
	uMsg	(Inherited from Event.)
	wParam	(Inherited from Event.)

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Remarks

KeyEvent events occur when the keyboard is used and are sent to Window:KeyDown() and Window:KeyUp().

Examples

This example moves the text cursor down one line when the user presses the Enter key. oCursorPoint defines the current location of the text cursor.

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1METHOD KeyDown(aKeyEvt) CLASS TopAppWindow
2IF(aKeyEvt:KeyCode() = KeyEnter)
3ts := SELF:TextSize('A'):Height() + 2
4oCursorPoint := Point{10,oCursorPoint:Y() - ts}
5ENDIF

Reference

VO Namespace