C# Constants:

static readonly int GWL_WNDPROC =(-4);

static readonly int GWL_HINSTANCE =(-6);

static readonly int GWL_HWNDPARENT =(-8);

static readonly int GWL_STYLE =(-16);

static readonly int GWL_EXSTYLE =(-20);

static readonly int GWL_USERDATA =(-21);

static readonly int GWL_ID =(-12);

VB Constants:

TODO

Notes:

None.