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 VB 编程 - 几个API函数的应用问题
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Q :--怎样在我的程序中实现文件下载

Re:

  一个例子:一个Command,两个Text 代码如下:

   Private Declare Function DoFileDownload Lib "shdocvw.dll" (ByVal lpszFile As String) As Long

   Private Sub Command1_Click()
   Dim sDownload As String
   sDownload = StrConv(Text1.Text, vbUnicode)
   Call DoFileDownload(sDownload)
   End Sub

   Private Sub Form_Load()
   Text1.Text = "//www.chat.ru/~softdaily/fo-ag162.zip"
   Form1.Caption = "Audiograbber 1.62 Full"
   Text2.Text = "//www6.50megs.com/audiograbber/demos/cr-ag161.zip"
   End Sub

Q :--如何在vb中定义一个热键,使得当一个应用程序的窗口最小化后,可以通过热键来唤醒它

Re:

  先声明API函数SendMessage,然后添加一个按钮和如下代码;

   Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVa l hwnd As Long, ByVal_    wMsg As Long, ByVal wparam As Long, lparam As Any) As Long

   Private Sub Command1_Click()
   Dim wKey As Long
   wKey = 66
   X = SendMessage(Me.hwnd, WM_SETHOTKEY, wKey, 0)
   MsgBox "B 键将激活窗体!", 64, "定义快捷键"
   End Sub

enjoy it!

--转自水木清华BBS