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The transparency states for rendering raster.
| Constant | Value | Description | 
|---|---|---|
| esriRasterTransparencyStateOpaque | 0 | Raster transparency state is opaque. | 
| esriRasterTransparencyStateAlpha | 1 | Raster transparency state is alpha. | 
| esriRasterTransparencyStateMask | 2 | Raster transparency state is mask. |