SharePoint workflow staus codes

The enum SPWorkflowStatus in the namespace "Microsoft.SharePoint.Workflow" in the library "Microsoft.SharePoint" is what we have to use for these status codes.

0	NotStarted	Not Started
1	FailedOnStart	Failed On Start
2	InProgress	In Progress
3	ErrorOccurred	Error Occurred
4	StoppedByUser	Cancelled
5	Completed	Completed
6	FailedOnStartRetrying	Failed on Start (retrying)
7	ErrorOccurredRetrying	Error Occurred (retrying)
8	ViewQueryOverflow	--
9-14	Unknown	Unknown
15	Cancelled	Cancelled
16	Approved	Approved
17	Rejected	Rejected