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#pragma once 

#ifndef _WINDOWS_
#include <windows.h>
#endif

#ifndef _COMMDLG_H_
#include <commdlg.h>
#endif

#ifdef __cplusplus
extern "C"{
#endif

//------------------------------------------------------------------------
// undefine the macros defined in the shlobj.h file in order to avoid
// warnings because of multiple defines 
//------------------------------------------------------------------------

#ifdef GetOpenFileNameW
#undef GetOpenFileNameW
#endif

#ifdef GetSaveFileNameW
#undef GetSaveFileNameW
#endif

//------------------------------------------------------------------------
// set the compiler directives for the function pointer we declare below
// if we build sal or sal will be used as static library we define extern
// else sal exports the function pointers from a dll and we use __declspec
//------------------------------------------------------------------------

#define COMDLG9X_API extern

//------------------------------------------------------------------------
// declare function pointers to the appropriate comdlg functions
//------------------------------------------------------------------------

COMDLG9X_API BOOL ( WINAPI * lpfnGetOpenFileNameW ) ( LPOPENFILENAMEW lpofn );
COMDLG9X_API BOOL ( WINAPI * lpfnGetSaveFileNameW ) ( LPOPENFILENAMEW lpofn );

//------------------------------------------------------------------------
// redefine the above undefined macros so that the preprocessor replaces
// all occurrences of this macros with our function pointer
//------------------------------------------------------------------------

#define GetOpenFileNameW	lpfnGetOpenFileNameW
#define GetSaveFileNameW	lpfnGetSaveFileNameW

#ifdef __cplusplus
}
#endif