I did my work in visual studio 2010 c++ console , but now i am trying to convert my work into windows app (making interface of it) in visual studio c++ . For that i have to add some header files which i have to add manually in windows form application, like

and it show me some error's in it like

DetectRegions.h(10): error C2146: syntax error : missing ';' before identifier 'filename'
DetectRegions.h(10): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(10): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(11): error C2061: syntax error : identifier 'string'
DetectRegions.h(14): error C2143: syntax error : missing ';' before '<'
DetectRegions.h(14): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(14): error C2238: unexpected token(s) preceding ';'
DetectRegions.h(16): error C2143: syntax error : missing ';' before '<'
DetectRegions.h(16): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(16): error C2238: unexpected token(s) preceding ';'
DetectRegions.h(17): error C2061: syntax error : identifier 'RotatedRect'
DetectRegions.h(18): error C2653: 'cv' : is not a class or namespace name
DetectRegions.h(18): error C2146: syntax error : missing ';' before identifier 'histeq'
DetectRegions.h(18): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(18): error C2061: syntax error : identifier 'Mat'
DetectRegions.h(18): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
DetectRegions.h(18): warning C4183: 'histeq': missing return type; assumed to be a member function returning 'int'

Plate.h is same like DetectRegions.h

I add the other headers of opencv in Form1.h like

#include "opencv2/features2d/features2d.hpp"
#include <opencv/highgui.h>
#include "opencv2/opencv.hpp" .......