Editing Windows Registry
 

I want to create a C++ Program to edit the Windows Registry. For example to change the home page of internet explorer. But I don't know how to read or edit the help.

I am doing this program just for my own self and is not a part of homework.

Re: Editing Windows Registry
 

I got the following source from the internet... but I don't know how to manipulate it for my convience

#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;

}

Re: Editing Windows Registry
 

but the thing is it edits reads only strings... I want to read a value which has binary values.... How do I do that?

Re: Editing Windows Registry
 

you still use RegQueryValueEx.

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 );

see http://msdn2.microsoft.com/en-us/library/ms724884.aspx for the registry value types.