TIEFillToolInteraction.ColorFillAlpha

Declaration

property ColorFillAlpha: Integer;

Description

Specifies the Alpha to apply when flood filling with a color.
By default, ColorFillAlpha is 255 so that flood fill makes all colored pixels fully opaque. Specify -1 to make no changes to the alpha channel.
Value is in the range 0: Fully Transparent - 255: Opaque, or -1 for no change.


Default: 255

Examples

// Fill clicked areas with blue (ensuring that painted pixels are made fully opaque)
ImageEnView1.FillTool.ColorFillValue := clBlue;
ImageEnView1.FillTool.ColorFillAlpha := 255;
ImageEnView1.FillTool.Tolerance      := 128;
ImageEnView1.MouseInteractGeneral    := [ miColorFill ];


// Fill clicked areas with white (without making any changes to the alpha channel)
ImageEnView1.FillTool.ColorFillValue := clWhite;
ImageEnView1.FillTool.ColorFillAlpha := -1;
ImageEnView1.FillTool.Tolerance      := 20;
ImageEnView1.MouseInteractGeneral    := [ miColorFill ];

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