在弹出模态对话框(消息框)的同时设置他的位置

Select Case iMsg
Case WM_SYSCOMMAND
If wParam = IDM_ABOUT Then
MsgBox "VB Move Messagebox demo", vbInformation, "About"
Exit Function
End If
Case WM_COMMAND
If wParam = IDM_ABOUT Then
MsgBox "VB Move Messagebox demo", vbInformation, "About"
Exit Function
Else
CallWindowProc ProcOld, hwnd, WM_SYSCOMMAND, wParam, lParam
WindowProc = 0
Exit Function
End If
Case WM_ACTIVATE
If wParam = WA_INACTIVE Then
Dim mywnd As Long
Dim buf As String * 64
Dim oldrect As RECT
GetWindowRect hwnd, oldrect
mywnd = lParam
GetClassName mywnd, buf, 64
If Mid(buf, 1, 6) = "#32770" Then
Dim processid As Long
GetWindowThreadProcessId mywnd, processid
If processid = GetCurrentProcessId() Then
SetWindowPos mywnd, 0, oldrect.Left, oldrect.Top, oldrect.Right - oldrect.Left, oldrect.Bottom - oldrect.Top, 0
End If
End If
End If
End Select
WindowProc = CallWindowProc(ProcOld, hwnd, iMsg, wParam, lParam)
End Function

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