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Gets the length of the previous field of the specified FieldType, starting at the specified screen position.

Namespace:  JollyGiant.Emulation
Assembly:  JGSComdotNet (in JGSComdotNet.dll) Version: 1.0.0.0 (1.0.0.0)

Syntax


C#
public StatusCode GetPreviousLength(
	ScreenPosition position,
	ref int length,
	FieldType fieldType
)


Visual Basic (Declaration)
Public Function GetPreviousLength ( _
	position As ScreenPosition, _
	ByRef length As Integer, _
	fieldType As FieldType _
) As StatusCode


Visual C++
public:
virtual StatusCode GetPreviousLength(
	ScreenPosition position, 
	int% length, 
	FieldType fieldType
) sealed


JavaScript
function GetPreviousLength(position, length, fieldType);


Parameters

position
Type: JollyGiant.Emulation..::.ScreenPositionCurrent ScreenPosition.

length Type: System..::.Int32 %Will on return contain the length of the IField.

fieldType Type: JollyGiant.Emulation..::.FieldTypeFieldType of field to get the length for.

Return Value

The StatusCode indicating the result of the operation.

This can be one of the following values:


Status codeDescription
WHLLOKThe specified field length was found.
WHLLNOTCONNECTEDYour application is not currently connected to a host session.
WHLLPARAMETERERROROne or more of the call parameters are invalid.
WHLLPOSITIONERRORThe specified presentation space position is invalid.
WHLLSYSERRORThe method failed due to a system error.
WHLLNOFIELDThe specified field was not found, or the session presentation space is unformatted.
WHLLZEROLENFIELDThe specified field has a length of zero.


Implements

IField...GetPreviousLength(ScreenPosition, Int32, FieldType)

Remarks

The attribute byte of a IField is not included in it's length.

See Also


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Copyright 2009 by Jolly Giant Software, Inc.