JUCE/modules/juce_core/misc/juce_WindowsRegistry.h

/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-11 by Raw Material Software Ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the GNU General
   Public License (Version 2), as published by the Free Software Foundation.
   A copy of the license is included in the JUCE distribution, or can be found
   online at www.gnu.org/licenses.

   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

  ------------------------------------------------------------------------------

   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.rawmaterialsoftware.com/juce for more information.

  ==============================================================================
*/

#ifndef __JUCE_WINDOWSREGISTRY_JUCEHEADER__
#define __JUCE_WINDOWSREGISTRY_JUCEHEADER__

#if JUCE_WINDOWS || DOXYGEN

/**
    Contains some static helper functions for manipulating the MS Windows registry
    (Only available on Windows, of course!)
*/
class WindowsRegistry
{
public:
    //==============================================================================
    /** Returns a string from the registry.
        The path is a string for the entire path of a value in the registry,
        e.g. "HKEY_CURRENT_USER\Software\foo\bar"
    */
    static String getValue (const String& regValuePath,
                            const String& defaultValue = String::empty);

    /** Returns a string from the WOW64 registry.
        The path is a string for the entire path of a value in the registry,
        e.g. "HKEY_CURRENT_USER\Software\foo\bar"
    */
    static String getValueWow64 (const String& regValuePath,
                                 const String& defaultValue = String::empty);

    /** Reads a binary block from the registry.
        The path is a string for the entire path of a value in the registry,
        e.g. "HKEY_CURRENT_USER\Software\foo\bar"
        @returns a DWORD indicating the type of the key.
    */
    static uint32 getBinaryValue (const String& regValuePath, MemoryBlock& resultData);

    /** Sets a registry value as a string.
        This will take care of creating any groups needed to get to the given registry value.
    */
    static bool setValue (const String& regValuePath, const String& value);

    /** Sets a registry value as a DWORD.
        This will take care of creating any groups needed to get to the given registry value.
    */
    static bool setValue (const String& regValuePath, uint32 value);

    /** Sets a registry value as a QWORD.
        This will take care of creating any groups needed to get to the given registry value.
    */
    static bool setValue (const String& regValuePath, uint64 value);

    /** Sets a registry value as a binary block.
        This will take care of creating any groups needed to get to the given registry value.
    */
    static bool setValue (const String& regValuePath, const MemoryBlock& value);

    /** Returns true if the given value exists in the registry. */
    static bool valueExists (const String& regValuePath);

    /** Returns true if the given value exists in the registry. */
    static bool valueExistsWow64 (const String& regValuePath);

    /** Deletes a registry value. */
    static void deleteValue (const String& regValuePath);

    /** Deletes a registry key (which is registry-talk for 'folder'). */
    static void deleteKey (const String& regKeyPath);

    /** Creates a file association in the registry.

        This lets you set the executable that should be launched by a given file extension.
        @param fileExtension        the file extension to associate, including the
                                    initial dot, e.g. ".txt"
        @param symbolicDescription  a space-free short token to identify the file type
        @param fullDescription      a human-readable description of the file type
        @param targetExecutable     the executable that should be launched
        @param iconResourceNumber   the icon that gets displayed for the file type will be
                                    found by looking up this resource number in the
                                    executable. Pass 0 here to not use an icon
        @param registerForCurrentUserOnly   if false, this will try to register the association
                                    for all users (you might not have permission to do this
                                    unless running in an installer). If true, it will register the
                                    association in HKEY_CURRENT_USER.
    */
    static bool registerFileAssociation (const String& fileExtension,
                                         const String& symbolicDescription,
                                         const String& fullDescription,
                                         const File& targetExecutable,
                                         int iconResourceNumber,
                                         bool registerForCurrentUserOnly);

private:
    WindowsRegistry();
    JUCE_DECLARE_NON_COPYABLE (WindowsRegistry)
};

#endif
#endif   // __JUCE_WINDOWSREGISTRY_JUCEHEADER__