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Visual studio provides tools to make forms in C++ but, starting with VS2012, they have made it difficult - they want you to make forms in C#, or VB not in C++.

A good tutorial on how to make a windows forms application using Visual C++ 2013 is given here

Basically you need your application to be a CLR application, rather than a console. You can then add GUI forms to it and call OpenCV from them. I have written several such applications and can help if you have more specific questions on interfacing OpenCV with CLR forms.

guy

Visual studio provides tools to make forms in C++ but, starting with VS2012, they have made it difficult - they want you to make forms in C#, or VB not in C++.

A good tutorial on how to make a windows forms application using Visual C++ 2013 is given here

guy

Edit

Here is an example. The form frmImaging has a buttons called cmdLoad and cmdSave and a textbox txtFileName. In the associated cpp file I have:

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

cv::Mat image //global mat file for storing the image. It is accessible by all GUI callbacks in this file. 

//callback for cmdLoad button - loads image into Mat
System::Void frmImaging::cmdLoad_Click(System::Object^  sender, System::EventArgs^  e) 
{
//Get filename
    if(System::String::IsNullOrEmpty(openFileDialog1->InitialDirectory))
        openFileDialog1->InitialDirectory=txtDir->Text;

    if( openFileDialog1->ShowDialog()!=::DialogResult::OK)
        return;

    txtFilename->Text=openFileDialog1->FileName;
    char FileName[200];
    sprintf(FileName,"%s",openFileDialog1->FileName);

//load image    
    image=imread(FileName,CV_LOAD_IMAGE_ANYDEPTH);
//display image 
        imshow("Display Window",image);
 }

//callback of cmdSave button - save image
System::Void frmImaging::cmdSave_Click(System::Object^  sender, System::EventArgs^  e) 
{
        // get filename from GUI
    char FileName[200];
    sprintf(FileName,"%s",txtFilename->Text);


    imwrite(FileName, image);

}