Global_variable. H file 
# # ifndef global_variable_H 
# define global_variable_H 

Struct _declspec (dllexport) testDllVar {int _test; }; 

Extern "C" _declspec (dllexport) testDllVar var. 

# endif//global_variable_H 


Global_variable. 
 in the CPPTestDllVar var. 

After encapsulation in the main. CPP is called 

# pragma comment (lib, "global_variable. Lib") 

Extern "C" _declspec (dllimport) testDllVar var;//column number 

Int main () 
{
Var. _test; 
return 0; 
}