Color Structure


Color Structure

Represents a 32-bit ARGB color (alpha + red + green + blue, each 0–255). Used throughout the SelectPdf public API.

Inheritance Hierarchy

SystemObject
SystemValueType
SelectPdf.Universal.DrawingColor

Namespace: SelectPdf.Universal.Drawing
Assembly: SelectPdf.Universal (in SelectPdf.Universal.dll) Version: 26.4

Syntax

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public struct Color : IEquatable<Color>

Public Structure Color
	Implements IEquatable(Of Color)

The Color type exposes the following members.

Properties

	Name	Description
	A	The alpha component (0 = fully transparent, 255 = fully opaque).
	B	The blue component (0–255).
	Black	Pure black (#000000).
	Blue	Pure blue (#0000FF).
	Cyan	Pure cyan (#00FFFF).
	DarkGray	DarkGray (#A9A9A9).
	G	The green component (0–255).
	Gray	Standard gray (#808080).
	Green	Pure green (#008000).
	IsEmpty	True if this is the default (uninitialized) value of Color.
	LightGray	LightGray (#D3D3D3).
	Magenta	Pure magenta (#FF00FF).
	Orange	Orange (#FFA500).
	R	The red component (0–255).
	Red	Pure red (#FF0000).
	Transparent	A fully transparent color (A=0).
	White	Pure white (#FFFFFF).
	Yellow	Pure yellow (#FFFF00).

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Methods

	Name	Description
	Equals(Color)	Indicates whether this color and the specified Color have the same ARGB value.
	Equals(Object)	Indicates whether this color and the specified object have the same value. (Overrides ValueTypeEquals(Object))
	FromArgb(Int32)	Constructs a color from a raw 32-bit ARGB value (layout: AARRGGBB).
	FromArgb(Int32, Color)	Constructs a color by replacing the alpha component of an existing color.
	FromArgb(Int32, Int32, Int32)	Constructs a fully-opaque color from the given red/green/blue components.
	FromArgb(Int32, Int32, Int32, Int32)	Constructs a color with the given alpha/red/green/blue components. Each value is clamped to 0–255.
	GetHashCode	Returns the hash code for this color. (Overrides ValueTypeGetHashCode)
	ToArgb	Gets the raw 32-bit ARGB value (layout: AARRGGBB).
	ToString	Returns a string representation of this Color (its A, R, G and B components). (Overrides ValueTypeToString)

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Operators

	Name	Description
	Equality(Color, Color)	Returns true if the two colors have identical ARGB values.
	Inequality(Color, Color)	Returns true if the two colors have different ARGB values.

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Fields

	Name	Description
	Empty	Represents the uninitialized color (all components zero, including alpha). Distinct from fully-transparent black, which is the same bit pattern but created explicitly. Callers check IsEmpty before use if the color might not have been set.

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Remarks

The struct is deliberately minimal — enough to construct common colors, compare values, and round-trip via PdfColor. For richer helpers (HSL conversions, named-color lookups, etc.), build those on top of FromArgb(Int32, Int32, Int32, Int32) / the R/G/B/A accessors.

Example

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SelectPdf.Universal.Drawing.Color navy =
    SelectPdf.Universal.Drawing.Color.FromArgb(0, 0, 128);
SelectPdf.Universal.Drawing.Color faded =
    SelectPdf.Universal.Drawing.Color.FromArgb(128, navy);
int argb = navy.ToArgb();
byte red = navy.R;

Dim navy As SelectPdf.Universal.Drawing.Color =
    SelectPdf.Universal.Drawing.Color.FromArgb(0, 0, 128)
Dim faded As SelectPdf.Universal.Drawing.Color =
    SelectPdf.Universal.Drawing.Color.FromArgb(128, navy)
Dim argb As Integer = navy.ToArgb()
Dim red As Byte = navy.R

Reference

SelectPdf.Universal.Drawing Namespace