#include <windows.h>
#include <iostream>
 
int main () {
 
	HKEY hKey;				// Declare a key to store the result
	DWORD buffersize = 1024;	// Declare the size of the data buffer
	char* lpData = new char[buffersize];// Declare the buffer
 
	/* Open the Registry Key at the location 
	HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
	with read only access
	*/
 
	RegOpenKeyEx (HKEY_CURRENT_USER, 
	"Software\\Microsoft\\Internet Explorer\\Main",NULL,KEY_READ,&hKey);
 
	// Query the registry value
	RegQueryValueEx(hKey,"Start Page",NULL,NULL,(LPBYTE) lpData,&buffersize);
 
	// Print out the registry value
	std::cout << "Registry Key Open: memory location=" << hKey << "\n";
	std::cout << "Your Internet Start Page is " << lpData << "\n\n";
 
	// Close the Registry Key
	RegCloseKey (hKey);
 
	// Pause the system so there is time to read what is going on
	system("Pause");
 
	delete lpData;
}

LONG WINAPI RegQueryValueEx( HKEY hKey, LPCTSTR lpValueName, 
            LPDWORD lpReserved,
            LPDWORD lpType, // will be set to the type of data 
                  // (eg. REG_BINARY if value was binary) 
            LPBYTE lpData, LPDWORD lpcbData );