关于enumdesktops地用法？

[Huaraco]

Private Declare Function EnumDesktops Lib "user32" Alias "EnumDesktopsA" (ByVal hwinsta As Long, ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long

我该怎么用，第二个参数该怎么传.

[Huaraco]

在问一下，例子里面的addressof 不行啊，应该怎么用？

[TechnoFantasy]

说明：
http://www.mentalis.org/apilist/EnumDesktops.shtml

范例：
http://www.mentalis.org/apilist/61D8353D4B6B7827D7F7BE22007AC256.html

[orcale]

Declare Function EnumDesktops Lib "user32" Alias "EnumDesktopsA" (ByVal hwinsta As Long, ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long
hwinsta
Specifies the handle to the window station whose desktops are to be enumerated. The CreateWindowStation, GetProcessWindowStation, and OpenWindowStation functions return a window station handle.

lpEnumFunc
Points to an application-defined EnumDesktopProc callback function.

dwDesiredAccess
Specifies a 32-bit application-defined value to be passed to the callback function.

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.