Comments on: Calling VC-made DLL from VB http://www.jeffhung.net/blog/articles/jeffhung/291/ (My smile insists of having nose. :-) Wed, 20 Aug 2008 17:58:15 +0000 http://wordpress.org/?v=2.6.1-alpha By: 布丁 http://www.jeffhung.net/blog/articles/jeffhung/291/#comment-1548 布丁 Sun, 12 Mar 2006 15:05:50 +0000 http://www.jeffhung.idv.tw/blog/?p=291#comment-1548 我是VC++新手,對製作DLL FOR VB 有興趣 但是一直試不出來,不知道是否方便指導一下呢 列如VB呼叫端引用方式為 Public Declare Sub mytest Lib "test.dll" (ByVal InputStr as String,ByRef MyRtn as String) Private Sub Command1_Click() Dim a as String, b as String a = "123456" Call mytest(a,b) MsgBox b End Sub InputStr 為輸入的字串 ,MyRtn 為回傳回來的字串 問題來了~~在C++ 這邊該如何寫呢? 我是VC++新手,對製作DLL FOR VB 有興趣
但是一直試不出來,不知道是否方便指導一下呢

列如VB呼叫端引用方式為
Public Declare Sub mytest Lib "test.dll" (ByVal InputStr as String,ByRef MyRtn as String)

Private Sub Command1_Click()
Dim a as String, b as String
a = "123456"
Call mytest(a,b)
MsgBox b
End Sub

InputStr 為輸入的字串 ,MyRtn 為回傳回來的字串

問題來了~~在C++ 這邊該如何寫呢?

]]>