崩溃办公室应用程序的VBA地址
我想运行一个简单的代码段,但每次Access和Excel都会崩溃 我正在运行CallbackTest2,你能帮我吗。谢谢你崩溃办公室应用程序的VBA地址,vba,ms-access,excel,addressof,Vba,Ms Access,Excel,Addressof,我想运行一个简单的代码段,但每次Access和Excel都会崩溃 我正在运行CallbackTest2,你能帮我吗。谢谢你 Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" ( _ ByVal lpPrevWndFunc As Long, _ ByVal hwnd As Long, _ ByVal msg As Long, _ ByVal wParam As L
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
Sub CallbackTest2()
CallWindowProc AddressOf CallbackMsg, 0, 0, 0, 0
End Sub
Public Function CallbackMsg _
(msg As String, _
ByVal nUnused1 As Long, _
ByVal nUnused2 As Long, _
ByVal nUnused3 As Long)
MsgBox "CallBack Work :)" & msg
End Function
找到了解决办法
我改变的事情:
从函数到子函数的回调消息
字符串参数填充了数据VarPtrHallo-Welt
运行版本:
您使用的是64位Access/Excel版本吗?您正在将4个参数传递给一个预期为5的例程。
Private Declare Function CallWindowProc _
Lib "user32.dll" 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 Sub CallbackTest2()
CallWindowProc AddressOf CallbackMsg, VarPtr("Hallo Welt"), 0, 0, 0
End Sub
Private Sub CallbackMsg( _
msg As String, _
ByVal nUnused1 As Long, _
ByVal nUnused2 As Long, _
ByVal nUnused3 As Long)
MsgBox msg
End Sub