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api:dk11:activex:tatukgis_xdk11.tgis_color

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TGIS_Color class

DK for ActiveX | TatukGIS_XDK11.TGIS_Color | Classes | Methods | Properties

Platform independent color type with ARGB storage, channel accessors, predefined colors, and color-space conversion helpers.

Available also on: Delphi | .NET | Java | Python.

Syntax

// C#
public class TGIS_Color : ITGIS_Color 
{
}
' VisualBasic
Public Class TGIS_Color
  Implements ITGIS_Color
End Class
// Oxygene
type
  TGIS_Color = public class
  end;

Implements

ITGIS_Color

Methods

Inherited Overrides Protected
Name Visibility Description
AttachDelphiObj public Only for internal use of TatukGIS.
(Inherited from ITBaseObject)
DelphiObj public Only for internal use of TatukGIS.
(Inherited from ITBaseObject)
FromABGR public Creates a transparent color using the ABGR color model.
FromACMYK public Creates a transparent color using the CMYK color model.
FromAHCL public Creates a transparent color using the HCL color model.
FromAHSL public Creates a transparent color using the HSL (Hue, Saturation, Lightness) color model.
FromAHSV public Creates a transparent color using the HSV color model.
FromARGB public Creates a transparent color using the RGB color model.
FromARGB_2 public Creates a transparent color using the ARGB color model.
FromBGR public Creates a color using the BGR color model.
FromBGR_2 public Creates a color using the BGR color model.
FromCMYK public Creates a color using the CMYK color model.
FromHCL public Creates a color using the HCL color model.
FromHSL public Creates a color using the HSL (Hue, Saturation, Lightness) color model.
FromHSV public Creates a color using the HSV color model.
FromRGB public Creates a color using the RGB color model.
FromRGB_2 public Creates a color using the RGB color model.
FromString public Creates a color from a CSS-style string representation.
ToABGR public Converts a color to an integer in the ABGR form.
ToACMYK public Retrieves the alpha (A), cyan (C), magenta (M), yellow (Y), and black (K) components of the current color.
ToAHCL public Retrieves the alpha (A), hue (H), chroma (C) and luminance (L) components of the current color.
ToAHSL public Retrieves the alpha (A), hue (H), saturation (S) and lightness (L) components of the current color.
ToAHSV public Retrieves the alpha (A), hue (H), saturation (S) and value (V) components of the current color.
ToARGB public Converts a color to an integer in the ARGB form.
ToBGR public Converts the color to a packed integer in BGR format.
ToCMYK public Retrieves the cyan (C), magenta (M), yellow (Y), and black (K) components of the current color.
ToHCL public Retrieves the hue (H), chroma (C), and luminance (L) components of the current color.
ToHSL public Retrieves the hue (H), saturation (S) and lightness (L) components of the current color.
ToHSV public Retrieves the hue (H), saturation (S) and value (V) components of the current color.
ToRGB public Converts the color to a packed integer in RGB format.
ToString public Converts the color to a hexadecimal string.
TryFromString public Tries to create a color from a CSS-style string representation.

Properties

Inherited Protected
Name Visibility Description
A public Gets the alpha channel from the ARGB color value.
Aqua public Constructs the standard Aqua color ($ff00ffff).
ARGB public Internal color value stored as a little endian ARGB integer.
B public Gets the blue channel from the ARGB color value.
Black public Constructs the standard Black color ($ff000000).
Blue public Constructs the standard Blue color ($ff0000ff).
Crazy public Constructs the standard Crazy color ($00010816).
DimGray public Constructs the standard DimGray color ($ff696969).
Fuchsia public Constructs the standard Fuchsia color ($ffff00ff).
G public Gets the green channel from the ARGB color value.
Gray public Constructs the standard Gray color ($ff808080).
Green public Constructs the standard Green color ($ff008000).
H public Gets the hue component from the HSL color representation.
L public Gets the lightness component from the HSL color representation.
LightGray public Constructs the standard LightGray color ($ffd3d3d3).
Lime public Constructs the standard Lime color ($ff00ff00).
Maroon public Constructs the standard Maroon color ($ff800000).
Navy public Constructs the standard Navy color ($ff000080).
None public Constructs the standard None color.
Olive public Constructs the standard Olive color ($ff808000).
Purple public Constructs the standard Purple color ($ff800080).
R public Gets the red channel from the ARGB color value.
Red public Constructs the standard Red color ($ffff0000).
RenderColor public Constructs a standard color - $00ff9933.
S public Gets the saturation component from the HSL color representation.
Silver public Constructs the standard Silver color ($ffc0c0c0).
Teal public Constructs the standard Teal color ($ff008080).
White public Constructs the standard White color ($ffffffff).
Yellow public Constructs the standard Yellow color ($ffffff00).

Remarks

TGIS_Color is a platform independent color definition used by TatukGIS Developer Kernel. It is defined as little endian ARGB.

DWORD
bits 31..24 bits 23..16 bits 15..8 bits 7..0
A R G B

Where:

Symbol Name Min Max Comments
A Alpha 0 255 0 means fully transparent; 255 means solid
R Red 0 255
G Green 0 255
B Blue 0 255

Sample colors:

Hex color Comments
$00000000 Black
$00FFFFFF Pure Red
$00FF0000 Pure Red
$0000FF00 Pure Green
$000000FF Pure Blue
$FF000000 Fully transparent; color has no meaning
$80000000 50% transparent black

Read more at http://en.wikipedia.org/wiki/RGBA_color_space.

Each platform has defined conversion functions to convert to/from the actual platform-specific color definition. See GisFramework for VCL or FMX.

References

2026/07/11 00:03

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