TImageEnView.LayersCropBackground

Declaration

procedure TImageEnView.LayersCropBackground(SelectedOnly: Boolean = False; FillAlpha: Integer = 255; AllowReduce: Boolean = True; AllowEnlarge : Boolean = True);

Description

Resize the background (layer 0) to fit all layers (the image is sized, but its content is not stretched).

Parameter	Description
SelectedOnly	The background will be cropped to fit selected layers only
FillAlpha	Alpha value used to fill added regions (0: Fully Transparent - 255: Opaque)
AllowReduce	Parts of the image can be cut so layers will align with image edges
AllowEnlarge	Parts will be added to the image so layers are not beyond hte image area

Note: The color of added background is specified by Background

Example

// Crop the background so that it matches the size of all layers
ImageEnView1.LayersCropBackground();

// Crop the background so that it matches the size of selected layers
ImageEnView1.LayersCropBackground( True );

// Crop the background to match layers, but do not cut any part of the image (new border area may be added)
ImageEnView1.LayersCropBackground( True, 255, False, True );

// Crop the background to match layers, but do not add to the image (some layers may be outside the image area)
ImageEnView1.LayersCropBackground( True, 255, True, False );

TImageEnView.LayersCropBackground