More Registry Crap

This is a discussion on More Registry Crap within the Windows Programming forums, part of the Platform Specific Boards category; I'm busy writing a tool, but things aren't really going as expected in the windows registry area, I'm trying to ...

  1. #1
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    More Registry Crap

    I'm busy writing a tool, but things aren't really going as expected in the windows registry area, I'm trying to read a value from the registry. So if there was a key HKEY_CURRENT_USER\Software\Brian\ and a value Mega which contained the string "Rad" I would expect this code to extract the value Rad for me.

    Code:
    #include <windows.h>
    
    int WINAPI WinMain (HINSTANCE hi, HINSTANCE hpi, LPSTR arg, int nfs)
    {
      HKEY fdkey;
      
      char dir[250];
      DWORD cbData = 7;
      RegOpenKey(HKEY_CURRENT_USER, "Software\\Brian", &fdkey);
       
      RegQueryValue(fdkey, "Mega", dir, NULL);
      RegCloseKey(fdkey);
      MessageBox(0,dir,"value",0);
      return 0;
    }

  2. #2
    C++ Developer XSquared's Avatar
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    The fourth parameter to RegQueryValue is the size of the buffer denoted in the third parameter.
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