次のコードを使用して、別のウィンドウのリストビューの内容を評価しようとしています。
Private Declare Function SendMessage Lib "user32.dll" Alias "SendMessageA" (ByVal hWnd As IntPtr, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam As IntPtr) As IntPtr
Private Function SendMessageString(ByVal hWnd As IntPtr, ByVal Msg As Integer, ByVal wParam As IntPtr, ByRef lParam As String) As IntPtr
End Function
Public Const LB_GETCOUNT = &H18B
Public Const LB_GETTEXT = &H189
Public Const LB_GETTEXTLEN = &H18A
hwnd = FindWindow(vbNullString, "Virtual CDRom Control Panel")
x = FindWindowEx(hwnd, 0, vbNullString, "List1")
Dim listCount As String = SendMessage(x, LB_GETCOUNT, CLng(0), CLng(0))
Dim textLen As String = SendMessage(x, LB_GETTEXTLEN, 30, CLng(0))
Dim itemText As String = New String(" ", textLen)
Dim theText As String = SendMessageString(x, LB_GETTEXT, 30, itemText)
MessageBox.Show(theText)
しかし、私が常に取得する値は0です。
http://img153.imageshack.us/img153/8892/vcdprog.jpg
どんな助けでも素晴らしいでしょう!:o)
デビッド