Help Create In Game Commands

[Rapid0]

Im trying to make code for __INFO_DROP cause i leech __INFO_DROP in dragoncross but i got problem with appearance when i try to press F12 theres no applet appears now im trying to make in game command with __INFO_DROP and i got this error:

 Spoiler

D:\flyff\Source\Program\_Interface\FuncApplet.cpp( 274): error C2061: syntax error : identifier 'CWndDropInformation'

btw this is my entries:
FuncApplet.cpp

#ifdef __INFO_DROP
#include "WndDropInfo.h"
#endif //INFO_DROP

#ifdef __INFO_DROP
DECLAREAPPLET( AppMain_DropInformation, new CWndDropInformation );
#endif

#ifdef __INFO_DROP
	AddAppletFunc( AppMain_DropInformation, APP_DROPINFO, "WndDropInformation", "Icon_Applet.dds", "drop", 0, "info", AUTH_GENERAL );
#endif

FuncTextCmd.cpp

#ifdef __INFO_DROP
BOOL TextCmd_DropInformation( CScanner & scanner )
{
#ifdef __CLIENT
	if( !g_WndMng.GetApplet(APP_DROPINFO) )
		g_WndMng.CreateApplet(APP_DROPINFO);
#endif
	return TRUE;
}
#endif

#ifdef __INFO_DROP
	ON_TEXTCMDFUNC( TextCmd_DropInformation, "drop", "info", "", "", TCM_CLIENT, AUTH_GENERAL, "" )
#endif

help please thanks!