Hi!
Ich möchte ein Formular subclassen, in etwa so:
Option Explicit
Private Declare Function SetWindowLong Lib "user32" _
Alias "SetWindowLongA" (ByVal hWnd As Long, _
ByVal nIndex As Long, ByVal dwNewLong As Long) _
As Long
Private Declare Function CallWindowProc Lib "user32" _
Alias "CallWindowProcA" (ByVal lpPrevWndFunc _
As Long, ByVal hWnd As Long, ByVal Msg As _
Long, ByVal wParam As Long, ByVal lParam As _
Long) As Long
Private Const WM_NCLBUTTONDBLCLK = &HA3
Private Const WM_NCLBUTTONDOWN = &HA1
Private Const WM_NCLBUTTONUP = &HA2
Const GWL_WNDPROC = (-4&)
Dim PrevWndProc&
Public Sub Init(hWnd As Long)
PrevWndProc = SetWindowLong(hWnd, GWL_WNDPROC, AddressOf SubWndProc)
End Sub
Public Sub Terminate(hWnd As Long)
Call SetWindowLong(hWnd, GWL_WNDPROC, PrevWndProc)
End Sub
Private Function SubWndProc(ByVal hWnd As Long, _
ByVal Msg As Long, _
ByVal wParam As Long, _
ByVal lParam As Long) As Long
If Msg = WM_NCLBUTTONDBLCLK Then
MsgBox ("DoubleClick")
End If
SubWndProc = CallWindowProc(PrevWndProc, hWnd, Msg, wParam, lParam)
End Function
Nun habe ich folgendes Problem: Das Doppelklickereignis wird in den Non-Client-Bereichen mit der Message-Box quittiert, in den Client-Bereichen aber nicht! Hängt die Varieble Msg von dem Bereich ab, auf den ich klicke?
Ich hoffe, einer von Euch kann mir helfen.
cu, frankos