Location:
chferror.h
const TInt KErrCHFProxyObjectAlreadyExists;
CHF Error code: A proxy object with the same identifier already exists.
const TInt KErrCHFDataSupplierConstructionFailed;
CHF Error code: Data supplier construction failed.
const TInt KErrCHFContentHandlerConstructionFailed;
CHF Error code: Content handler construction failed.
const TInt KErrCHFDataSupplierSetPositionFailed;
CHF Error code: Failed to set position in data supplier.