TIEDBBitmap.LayerMode
Declaration
property LayerMode: TIEDBLayerMode;Description
Allows you to load and save layers.| Value | Description |
|---|---|
| ielmDisabled | Layers are ignored (not loaded or saved) |
| ielmSaveLayers | Layers are saved and loaded as IEN files |
| ielmSavePSD | Layers are saved and loaded as PhotoShop files (Image layers only) |
| ielmImageEnAnnot | Layers are saved and loaded as JPEG images with ImageEn annotations |
| ielmImagingAnnot | Layers are saved and loaded as TIFF images with Wang annotations (not all layer types are supported) |
Note:
◼ Has no effect unless the TIEDBBitmap is specified as the external bitmap for a TImageEnView.
◼ If this property is not ielmDisabled, it will override the value set for TIEDBBitmap.ImageFormat (with either ioIEN, ioPSD, ioJPEG, ioTIFF)
◼ If you call SetExternalBitmap after setting LayerMode, you will need to reload the image to see the layers
Default: ielmDisabled
Demo
 | Demos\Database\DBDemo_Layers\DBDemoLayers.dpr |
Example
procedure Tfmain.FormShow(Sender: TObject);begin
... Open a database table ...
fDBBitmap := TIEDBBitmap.create( dsImages, 'Image', 'Filename' );
// Store layers in database too
fDBBitmap.LayerMode := ielmSaveLayers;
ImageEnView1.SetExternalBitmap( fDBBitmap );
end;