LOpenGLCreateContext

function LOpenGLCreateContext(

  AWinControl: TWinControl;

  WSPrivate: TWSPrivateClass;

  SharedControl: TWinControl;

  DoubleBuffered: Boolean;

  RGBA: Boolean;

  DebugContext: Boolean;

  const RedBits: Cardinal;

  const GreenBits: Cardinal;

  const BlueBits: Cardinal;

  const MajorVersion: Cardinal;

  const MinorVersion: Cardinal;

  const MultiSampling: Cardinal;

  const AlphaBits: Cardinal;

  const DepthBits: Cardinal;

  const StencilBits: Cardinal;

  const AUXBuffers: Cardinal;

  const AParams: TCreateParams

):HWND;