Provides access to members that control a PixelBlock.
Product Availability
Members
| Description | ||
|---|---|---|
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BytesPerPixel | The number of bytes per pixel for the PixelBlock. |
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GetVal | The value for a specified pixel. |
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Height | The height of the PixelBlock in pixels. |
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PixelType | The pixel type of the PixelBlock. |
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Planes | The number of pixel arrays contained in the PixelBlock. |
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SafeArray | A variant SafeArray of pixels for a specified plane. |
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Width | The width of the PixelBlock in pixels. |
CoClasses that implement IPixelBlock
| CoClasses and Classes | Description |
|---|---|
| PixelBlock (esriDataSourcesRaster) | Esri PixelBlock, a container of pixel data. |
Remarks
The Height and Width properties return the number of rows and columns in the PixelBlock.
The Planes argument returns the number of bands in the PixelBlock.
The PixelType property specifies the data type and bit depth of the pixels in the specified band.The SafeArray property specifies the variant SafeArray for the specified band. At ArcGIS 9.0 and later, this property returns SafeArray by value, not by reference like it does in ArcGIS 8.x. Your application, if only reads pixel values from SafeArray, will not be affected by this change. However, if your application involves modifying and writing pixel block to the band, you might experience a different behavior. The recommended fix is to use IPixelBlock3::PixelDataByRef method.
The GetVal method returns an individual value for the pixel specified by the band and pixel location input.