api:dk11:activex:tatukgis_xdk11.itgis_layerpixel.lockpixels_5_itrect_wordbool
Table of Contents
ITGIS_LayerPixel.LockPixels_5 method
DK11 for ActiveX | TatukGIS_XDK11.ITGIS_LayerPixel.LockPixels_5 | Methods | Properties
Locks a fragment of the pixel layer for updating.
Syntax
// C# public ITGIS_LayerPixelLock LockPixels_5( ITRect _rct, WordBool _writable );
' VisualBasic Public Function LockPixels_5( ByVal _rct As ITRect, ByVal _writable As WordBool ) As ITGIS_LayerPixelLock
// Oxygene public function LockPixels_5( _rct : ITRect; _writable : WordBool ) : ITGIS_LayerPixelLock;
Parameters
| Name | Type | Description |
|---|---|---|
| _rct | ITRect | rectangle on raster to be locked; if bigger then raster size then will be truncated |
| _writable | WordBool | if true than layer will post back any changes in locked area; if write is not possible then TGIS_LayerPixelLock.Writable will be set accordingly |
Result
| Type | Description |
|---|---|
| ITGIS_LayerPixelLock | locked area |
Remarks
Must be paired with UnlockPixels.
To speed-up operation, the function can return a larger area than requested. Use Bounds property of result value to obtain actual scope.
2020/05/07 01:04