Form.Hwnd Property (Access)
You can use the hWnd property to determine the handle (a unique Long Integer value) assigned by Microsoft Windows to the current window. Read/write Long.
Syntax
expression .Hwnd
expression A variable that represents a Form object.
Remarks
You can use this property in Visual Basic when making calls to Windows application programming interface (API) functions or other external routines that require the hWnd property as an argument. Many Windows functions require the hWnd property value of the current window as one of the arguments.
Note
Because the value of this property can change while a program is running, don't store the hWnd property value in a public variable.
Example
The following example uses the hWnd property with the Windows API IsZoomed function to determine if a window is maximized.
' Enter on single line in Declarations section of Module window.
Declare Function IsZoomed Lib "user32" (ByVal hWnd As Long) As Long
Sub Form_Activate()
Dim intWindowHandle As Long
intWindowHandle = Screen.ActiveForm.hWnd
If Not IsZoomed(intWindowHandle) Then
DoCmd.Maximize
End If
End Sub