static PropertyKey s_pkDateEncoded = new PropertyKey("2e4b640d-5019-46d8-8881-55414cc5caa0", 100); // System.Media.DateEncoded
#endif
/// <summary>
/// Open the property store for a file.
/// </summary>
/// <param name="filename">Path or filename of file on which to open the property store.</param>
/// <param name="writeAccess">True if write access is desired. Defaults to false.</param>
/// <returns>A <see cref="PropertyStore"/> instance.</returns>
public static PropertyStore Open(string filename, bool writeAccess = false)
{
PropertyStoreInterop.IPropertyStore store;
Guid iPropertyStoreGuid = typeof(PropertyStoreInterop.IPropertyStore).GUID;
PropertyStoreInterop.SHGetPropertyStoreFromParsingName(filename, IntPtr.Zero,
writeAccess ? PropertyStoreInterop.GETPROPERTYSTOREFLAGS.GPS_READWRITE : PropertyStoreInterop.GETPROPERTYSTOREFLAGS.GPS_BESTEFFORT,
ref iPropertyStoreGuid, out store);
return(new PropertyStore(store));
}
/// <summary>
/// Constructs an instance of the PropertySytem object. PropertySystem has no
/// state so one instance can be shared across the whole application if that is
/// convenient.
/// </summary>
/// <remarks>
/// PropertySystem should be disposed before going out of scope in order to free
/// associated system resources.
/// </remarks>
public PropertySystem()
{
Guid IID_IPropertySystem = typeof(PropertyStoreInterop.IPropertySystem).GUID;
PropertyStoreInterop.PSGetPropertySystem(ref IID_IPropertySystem, out m_IPropertySystem);
}