www.pudn.com > ComEmulDrv3.zip > PropPage.h

 
// The following ifdef block is the standard way of creating macros which make exporting  
// from a DLL simpler. All files within this DLL are compiled with the PROPPAGE_EXPORTS 
// symbol defined on the command line. this symbol should not be defined on any project 
// that uses this DLL. This way any other project whose source files include this file see  
// PROPPAGE_API functions as being imported from a DLL, wheras this DLL sees symbols 
// defined with this macro as being exported. 
#ifdef PROPPAGE_EXPORTS 
#define PROPPAGE_API __declspec(dllexport) 
#else 
#define PROPPAGE_API __declspec(dllimport) 
#endif