Private Declare Function ReleaseCapture Lib "user32" () As Long Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Long) As Long Const WM_NCLBUTTONDOWN = &HA1 Const HTCAPTION = 2Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) Dim ReturnVal As Long X = ReleaseCapture() ReturnVal = SendMessage(Me.hwnd, WM_NCLBUTTONDOWN, HTCAPTION, 0) End Sub
http://topic.csdn.net/t/20040102/21/2628060.html
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Long) As Long
Const WM_NCLBUTTONDOWN = &HA1
Const HTCAPTION = 2Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim ReturnVal As Long
X = ReleaseCapture()
ReturnVal = SendMessage(Me.hwnd, WM_NCLBUTTONDOWN, HTCAPTION, 0)
End Sub