Public Declare Function ExtractIcon Lib "shell32.dll" Alias "ExtractIconA" (ByVal hInst As Long, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As Long
前面是比较好理解,但后面的参数是怎么出来的
(ByVal hInst As Long, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As Long
这个是自己自定义的,还是系统自带的,如果自己写api函数这个参数也要自己写出来吗。