我在VB 6.0中動態加載OCX。在VB 6.0中動態加載OCX
下面是我使用的加載並調用該方法的代碼:
Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long
Private Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long
Private Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Long, ByVal lpProcName As String) As Long
Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hWnd As Long, ByVal Msg As Any, ByVal wParam As Any, ByVal lParam As Any) As Long
Private Sub Foo
On Error Resume Next
Dim lb As Long, pa As Long
Dim versionString As String
Dim retValue as Long
lb = LoadLibrary("D:\projects\other\VB_DLLs\TestDLL\TestDLL.dll")
'retrieve the address of getVersion'
pa = GetProcAddress(lb, "getVersion")
'Call the getVersion function'
retValue = CallWindowProc (pa, Me.hWnd, "I want my version", ByVal 0&, ByVal 0&)
'release the library'
FreeLibrary lb
End Sub
現在我要訪問OCX的公共屬性。我如何訪問(獲取/設置)OCX的屬性?
這裏您的目標是什麼?一個OCX通常是一個將被顯示爲表單上的可見控件的控件。你的代碼表明你正在加載一個DLL,沒有任何視覺表現,並且想以後期風格調用它。 – GTG 2012-03-30 07:47:37
@GTG,我想確定OCX的屬性後,我想設置OCX的屬性。沒有形式的視覺呈現,只是爲了計算。 – Siddiqui 2012-03-30 07:55:30
您是否嘗試了正常的後期綁定,如下所示:Dim myObject as object set myObject = createobject(「yourlib.yourclass」)versionString = myObject.TheVersionProperty – GTG 2012-03-30 08:05:10