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);

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

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

The StatusCode indicating the result of the operation.

This can be one of the following values:

Status code	Description
WHLLOK	The specified field length was found.
WHLLNOTCONNECTED	Your application is not currently connected to a host session.
WHLLPARAMETERERROR	One or more of the call parameters are invalid.
WHLLPOSITIONERROR	The specified presentation space position is invalid.
WHLLSYSERROR	The method failed due to a system error.
WHLLNOFIELD	The specified field was not found, or the session presentation space is unformatted.
WHLLZEROLENFIELD	The specified field has a length of zero.

Remarks

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