How to use BypassedPostmessage.dll in c#

[rozanec99]

Hello guys, I am wondering if anyone or joostp knows how to use BypassedPostmessage.dll in c#.

Its declaration and calling keystroke?

I tried on my own already and no luck :P w/o it i can get my Sendkeys keystroke working on anything but Flyff :S

Declaration should be like:
[DllImport("BypassedPostmessage.dll")]
static extern void myPostMessageA(
int hWnd,
int wMsg,
int wParam,
UIntPtr lParam
);

or something like that?
What about call of this function? u can't use &H100 for example? and same goes for others <- idk what to put in so dll would work.

Thanks in advance