#include <windows.h>
#include <stdio.h>
#include "add10.h"

const unsigned short int ADD_NUM = 10;
unsigned long int numAnswer = 0;

BOOL CALLBACK digAddEventListener (HWND hwnd, UINT event, WPARAM object, LPARAM lParam);

BOOL CALLBACK digAddEventListener (HWND hwnd, UINT event, WPARAM object, LPARAM lParam)
{

	if (event == WM_COMMAND)
	{
	
		int objectID = LOWORD(object);
		
		if (objectID == cmdAdd)
		{
			
			numAnswer += ADD_NUM;
			
			char buffer[10];
			sprintf(buffer, "%u", numAnswer);
			SetDlgItemText(hwnd, lblAnswer, buffer);
		
		}		 
		else if (objectID == cmdClose)
		{
			EndDialog(hwnd, objectID);
		}
		
		
	}
	else if (event == WM_CLOSE)
	{		
		EndDialog(hwnd, object);
	}
	else
	{
		return false;
	}
	
	return true;

}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR args, int nCmdShow)
{
	return DialogBox(hInstance, MAKEINTRESOURCE(digAdd), NULL, digAddEventListener);
}