Assembly: System.Drawing (in System.Drawing.dll)
A predefined color is also called a known color and is represented by an element of the KnownColor enumeration. When the method is applied to a Color structure that is created by using the FromArgb method, returns 0, even if the ARGB value matches the ARGB value of a predefined color. also returns 0 when it is applied to a Color structure that is created by using the FromName method with a string name that is not valid.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.