| Value | Description |
|---|---|
| ieMemory | Uses standard memory. Canvas not available. Used for fast and smaller images |
| ieFile | Uses memory mapped files. Canvas not available. Used for very large images |
| ieTBitmap | Uses a TBitmap VCL object. Canvas available. Used for drawing and compatibility. Location can be assigned before or after Allocate. Assigning Location on an existing image converts the image to the new location |