SftTree/OCX 7.5 - ActiveX Tree Control

KeyDown Event, SftTree Object

A key is pressed.

Syntax

VB.NET	Private Sub object_KeyDownEvent(ByVal sender As Object, ByVal e As EventArgumentType) Handles object.KeyDownEvent
VB	Private Sub object_KeyDown(KeyCode As Integer, ByVal Shift As Integer)
C#.NET	void object_KeyDownEvent(object sender, EventArgumentType e);
VC++	void OnKeyDownobject(short* KeyCode, short Shift);
C	HRESULT OnKeyDownobject(short* KeyCode, short Shift);

object

A SftTree object.

KeyCode

The virtual key pressed. See your development environment documentation for available key code constants.

Shift

The state of the SHIFT, CONTROL and ALT keys during the event (see SftTreeKeyConstants). A bit is set if the key is down. The Shift argument is a bit field with bits corresponding to the SHIFT, CONTROL and ALT keys. The Shift variable indicates the state of these keys. Some, all, or none of the bits can be set, indicating which of the keys are pressed.

Shift	Value	Description
constSftTreeShiftMask	1	The SHIFT key was pressed.
constSftTreeCtrlMask	2	The CONTROL key was pressed.
constSftTreeAltMask	4	The ALT key was pressed.

Comments

The KeyDown event occurs when a key is pressed.

The KeyDown event is generated when the user presses a key while the tree control has the input focus. The KeyDown event is not generated during cell editing.

If the tree control is part of a parent window (form, dialog, etc.) which has a default button (OK, Cancel) and the user presses the ENTER or ESCAPE keys, this event is not generated.

The KeyDown event is never generated for the TAB key.

To interpret keyboard characters (ANSI characters) use the KeyPress event.

The key typed by the user can be suppressed by setting KeyCode to 0. It can be modified by assigning a new value to the variable.

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