How do I handle numeric types

[naiking]

in Main.h file ,I defined EDITDATA
LONG secretId;

in Edittime.cpp file ,the function GetPropValue() is follow:
case PROPID_SECRET_ID:
return new CPropDWordValue(edPtr->secretId);

and then compile get a mfx.

but ,if i use this extension.the CF crashed when i create a extension of mine.
that's why?