Object Model Reference : Classes : C : Color : Properties : Color.LabComponentA
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| Object Model Reference : Classes : C : Color : Properties : Color.LabComponentA |
Property LabComponentA As Long
The LabComponentA property returns or specifies the A component for the LAB color model in CorelDRAW. This property sets one of two chromatic components in the LAB color model. “A” refers to a range of colors between green and red.
A color is an effect applied to an object that alters the object’s appearance by the way it reflects light. A color model is a system that defines the number and type of colors that make up an image and that is used to organize and define colors according to a set of basic properties that can be reproduced. Black-and-white, grayscale, RGB, CMYK, and paletted are examples of popular color modes.
The LAB color model is a color model created by the Commission Internationale de l’Eclairage (CIE). It contains a luminance (or lightness) component (L) and two chromatic components: “a” (green to red) and “b” (blue to yellow). The LAB color mode is based on the LAB color model.
Values range from (-128) to 127.
The following VBA example fills all shape objects with the LAB gray color and displays the LAB component A value in a message box.
Sub Test() |
Dim s As Shape |
For Each s In ActivePage.Shapes |
If s.Fill.Type = cdrUniformFill Then |
s.Fill.UniformColor.LabAssign 128, 0, 0 |
End If |
Next s |
MsgBox s.Fill.UniformColor.LabComponentA |
End Sub |
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