Thread: AnimateWindow

I found out about this function on msdn.com and used the function according to their syntax and specifications. When I tried to compile it (In Dev-C++, on a Windows 98 system) it gave me errors telling me the flags I used were undeclared and that there is an implicit declaration of the AnimateWindow function. I don't know why it would not work at all, because all the info I used for the function came off MSDN.
Here are the errors:

Code:

30 c:\windows\desktop\animat~1.cpp
 `AW_ACTIVATE' undeclared (first use this function)
30 c:\windows\desktop\animat~1.cpp
 `AW_CENTER' undeclared (first use this function)
30 c:\windows\desktop\animat~1.cpp
 implicit declaration of function `int AnimateWindow(...)'

Thanks.