Application.KeyUp event (Visio)
Occurs when a keyboard key is released.
Syntax
expression.KeyUp (KeyCode, KeyButtonState, CancelDefault)
expression A variable that represents an Application object.
Parameters
| Name | Required/Optional | Data type | Description |
|---|---|---|---|
| KeyCode | Required | Long | The key that was released. Possible values are declared in Keycode constants. |
| KeyButtonState | Required | Long | The state of the Shift and Ctrl keys for the event. Can be a combination of the values declared in VisKeyButtonFlags. For example, if KeyButtonState returns 12, it indicates that the user held down both Shift and Ctrl. |
| CancelDefault | Required | Boolean | False if Microsoft Visio should process the message it receives from this event; otherwise, True. |
Remarks
If you set CancelDefault to True, Visio will not process the message received when the mouse button is clicked.
Unlike some other Visio events, KeyUp does not have the prefix Query, but it is nevertheless a query event. That is, you can cancel processing the message sent by KeyUp, either by setting CancelDefault to True, or, if you are using the VisEventProc method to handle the event, by returning True. For more information, see the topics for the VisEventProc method and for any of the query events (for example, the QueryCancelSuspend event) in this reference.
If you are using Microsoft Visual Basic or VBA, the syntax in this topic describes a common, efficient way to handle events.
If you want to create your own Event objects, use the Add or AddAdvise method.
To create an Event object that runs an add-on, use the Add method as it applies to the EventList collection.
To create an Event object that receives notification, use the AddAdvise method.
To find an event code for the event that you want to create, see Event codes.
Example
This class module shows how to define a sync class called KeyboardListener that listens for events fired by keyboard actions in the active window. It declares the object variable vsoWindow by using the WithEvents keyword. The class module also contains event handlers for the KeyDown, KeyPress, and KeyUp events.
To run this example, insert a new class module in your VBA project, name it KeyboardListener, and insert the following code in the module.
Dim WithEvents vsoWindow As Visio.Window
Private Sub Class_Initialize()
Set vsoWindow = ActiveWindow
End Sub
Private Sub Class_Terminate()
Set vsoWindow = Nothing
End Sub
Private Sub vsoWindow_KeyDown(ByVal KeyCode As Long, ByVal KeyButtonState As Long, CancelDefault As Boolean)
Debug.Print "KeyCode is "; KeyCode
Debug.Print "KeyButtonState is" ; KeyButtonState
End Sub
Private Sub vsoWindow_KeyPress(ByVal KeyAscii As Long, CancelDefault As Boolean)
Debug.Print "KeyAscii value is "; KeyAscii
End Sub
Private Sub vsoWindow_KeyUp(ByVal KeyCode As Long, ByVal KeyButtonState As Long, CancelDefault As Boolean)
Debug.Print "KeyCode is "; KeyCode
Debug.Print "KeyButtonState is" ; KeyButtonState
End Sub
Then, insert the following code in the ThisDocument project.
Dim myKeyboardListener As KeyboardListener
Private Sub Document_DocumentSaved(ByVal doc As IVDocument)
Set myKeyboardListener = New KeyboardListener
End Sub
Private Sub Document_BeforeDocumentClose(ByVal doc As IVDocument)
Set myKeyboardListener = Nothing
End Sub
Save the document to initialize the class, press any key, and then release it to fire a KeyUp event. In the Immediate window, the handler prints the code of the key that was released to fire the event and the state of the Shift and Ctrl keys at the time the event fired.
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