如下声明: Public Declare Function DrawIcon Lib "user32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long) As Long 必须知道dll动态连接库中(如上位User32.dll)的函数名(如上位DrawIcon),以及该函数的入口参数(如上位ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long)在声明中必须正确地申明函数入口参数的数据类型,和返回值得数据类型
如果该DLL是普通的DLL,必须要知道接口,然后在DECLARE
声明一下就可以了
和启动VB中同一个开始菜单里,有一个API文本浏览器
打开它,你再在这个软件中,去加载API文件,
以后,你就可以把API函数COPY到VB程序中去
Public Declare Function DrawIcon Lib "user32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long) As Long
必须知道dll动态连接库中(如上位User32.dll)的函数名(如上位DrawIcon),以及该函数的入口参数(如上位ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal hIcon As Long)在声明中必须正确地申明函数入口参数的数据类型,和返回值得数据类型