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api:dk11:net:tatukgis.ndk.tgis_layervector.drawselectedex_tgis_extent

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TGIS_LayerVector.DrawSelectedEx method

DK11 for .NET | TatukGIS.NDK.TGIS_LayerVector.DrawSelectedEx | Constructors | Fields | Methods | Properties | Events

Draw only selected item of a layer.

Available also on: Delphi | Java.

Overrides TGIS_Layer.DrawSelectedEx.

Syntax

// C#
public bool DrawSelectedEx(
  TGIS_Extent _extent
);
' VisualBasic
Public Function DrawSelectedEx(
  ByVal _extent As TGIS_Extent
) As Boolean
// Oxygene
public
  function DrawSelectedEx(
    _extent : TGIS_Extent
  ) : Boolean; override;

Parameters

Name Type Description
_extent TGIS_Extent extent to be drawn

Result

Type Description
bool
Boolean
True, if something is drawn.

Remarks

Use this method to draw a layer. Normally called by Paint.

When using this operation, never call any function which uses FindFirst..FindNext (any function which iterates through the shapes using it - so never use inside an operation like Locate, PaintScope etc.).

See Paint for example.

2019/11/22 18:06