Closing MS Word in VB application

[Venkrishna]

My project opens multiple instances of MSWord. All I want is to close
all those windows when I close my window.

Will any one help me out?

Cheers,
Venkat.

[Nucleus]

Sure thing, enjoy :

Option Explicit

Private Declare Function FindWindow Lib "user32" Alias _
"FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long

Private Declare Function PostMessage Lib "user32" Alias _
"PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, ByVal lParam As Long) As Long

Private Const WM_CLOSE = &H10
Private Const WM_DESTROY = &H2
Private Const WM_NCDESTROY = &H82
Private Const WM_QUIT = &H12

Private Sub Command1_Click()
 Call CloseApplication("opusapp") 
End Sub

Sub CloseApplication(ByVal sClassName As String)
 Dim happ As Long
 
 happ = FindWindow(sClassName, vbNullString)
 
 Do While happ
    PostMessage happ, WM_CLOSE, 0, 0
    PostMessage happ, WM_DESTROY, 0, 0
    PostMessage happ, WM_NCDESTROY, 0, 0
    PostMessage happ, WM_QUIT, 0, 0
    happ = FindWindow(sClassName, vbNullString)
 Loop
 
End Sub

[HeSaidJoe]

If you are using the word object and
know the name(s) of the objects you open

'close objects [document and word]
objDoc.Close
objWord.Quit

'clear memory of the objects [documnent and word]
Set objDoc = Nothing
Set objWord = Nothing