Private Type OPENFILENAME lStructSize As Long hwndOwner As Long hInstance As Long lpstrFilter As String lpstrCustomFilter As String nMaxCustFilter As Long nFilterIndex As Long lpstrFile As String nMaxFile As Long lpstrFileTitle As String nMaxFileTitle As Long lpstrInitialDir As String lpstrTitle As String flags As Long nFileOffset As Integer nFileExtension As Integer lpstrDefExt As String lCustData As Long lpfnHook As Long lpTemplateName As String End Type Private Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (pOpenfilename As OPENFILENAME) As Long
将以下代码置于某一事件中
Dim ofn As OPENFILENAME ofn.lStructSize = Len(ofn) ofn.hwndOwner = Form1.hWnd ofn.hInstance = App.hInstance ofn.lpstrFilter = "Text Files (*.txt)" + Chr$(0) + "*.txt" + Chr$(0) + "Rich Text Files (*.rtf)" + Chr$(0) + "*.rtf" + Chr$(0) ofn.lpstrFile = Space$(254) ofn.nMaxFile = 255 ofn.lpstrFileTitle = Space$(254) ofn.nMaxFileTitle = 255 ofn.lpstrInitialDir = curdir ofn.lpstrTitle = "Our File Open Title" ofn.flags = 0 Dim a a = GetOpenFileName(ofn) If (a) Then MsgBox "File to Open: " + Trim$(ofn.lpstrFile) Else MsgBox "Cancel was pressed" End If