Registry Problems

This is a discussion on Registry Problems within the Windows Programming forums, part of the Platform Specific Boards category; Ok, this isn't creating a key or a value =/ Code: HKEY tmpKey = NULL; const char * REG_KEY_NAME = ...

  1. #1
    30 Helens Agree neandrake's Avatar
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    Registry Problems

    Ok, this isn't creating a key or a value =/

    Code:
    	HKEY tmpKey = NULL;
    	const char * REG_KEY_NAME = "\\*\\shellex\\ContextMenuHandler\\SHA1-Hash";
    	const char * REG_VALUE_NAME = "command";
    
    	char key[512];
    	ZeroMemory(key, 512);
    	strcat(key, "\"");
    	strcat(key, GetCommandLine());
    	strcat(key, "\" \"%1\"");
    
    	if (RegCreateKeyEx(HKEY_CLASSES_ROOT, REG_KEY_NAME, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &tmpKey, NULL) == ERROR_SUCCESS)
    		if (RegSetValueEx(tmpKey, REG_VALUE_NAME, 0, REG_SZ, (const BYTE *)key, (DWORD)strlen(key)) != ERROR_SUCCESS)
    			MessageBox(NULL, "Can't create registry thing", "shyte", MB_OK);
    Meh, know what's wrong?
    Environment: OS X, GCC / G++
    Codes: Java, C#, C/C++
    AOL IM: neandrake, Email: neandrake (at) gmail (dot) com

  2. #2
    Yes, my avatar is stolen anonytmouse's Avatar
    Join Date
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    Posts
    2,544
    You need to master the art of scanning the documentation looking for parameters that don't meet the requirements.

    RegCreateKeyEx:
    The subkey name specified by lpSubKey must not begin with the backslash character ('\\'). If it does, ERROR_BAD_PATHNAME is returned.

    RegSetValueEx:
    Size of the information pointed to by the lpData parameter, in bytes. If the data is of type REG_SZ, REG_EXPAND_SZ, or REG_MULTI_SZ, cbData must include the size of the terminating null character or characters.
    Also verify that you are calling RegCloseKey when you are done.

    Of course, I should have picked these up the first time!

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