type fptrFF = (proc(lpFileName: string, lpFindFileData: LPWIN32_FIND_DATA))
var FFHook: fptrFF = findFirstFileW()

Error: type mismatch: got ()

but expected one of:

winlean.findFirstFileW(lpFileName: WideCString, lpFindFileData: var TWIN32_FIND_DATA): THandle

> Process terminated with exit code 1