Information.RGB Method (Int32, Int32, Int32)

 

Returns an Integer value representing an RGB color value from a set of red, green and blue color components.

Namespace:   Microsoft.VisualBasic
Assembly:  Microsoft.VisualBasic (in Microsoft.VisualBasic.dll)

public static int RGB(
	int Red,
	int Green,
	int Blue
)

Parameters

Red
Type: System.Int32

Required. Integer in the range 0–255, inclusive, that represents the intensity of the red component of the color.

Green
Type: System.Int32

Required. Integer in the range 0–255, inclusive, that represents the intensity of the green component of the color.

Blue
Type: System.Int32

Required. Integer in the range 0–255, inclusive, that represents the intensity of the blue component of the color.

Return Value

Type: System.Int32

Returns an Integer value representing an RGB color value from a set of red, green and blue color components.

Exception Condition
ArgumentException

Green, Blue, or Red is outside of range 0 to 255, inclusive.

Application methods and properties that accept a color specification expect that specification to be a number representing an RGB color value. An RGB color value specifies the relative intensity of red, green, and blue to cause a specific color to be displayed.

If the value for any argument to RGB is greater than 255, 255 is used.

The following table lists some standard colors and the red, green, and blue values they include.

Color

Red value

Green value

Blue value

Black

0

0

0

Blue

0

0

255

Green

0

255

0

Cyan

0

255

255

Red

255

0

0

Magenta

255

0

255

Yellow

255

255

0

White

255

255

255

This example shows how the RGB function is used to return a whole number representing an RGB color value.

Dim red, rgbValue As Integer
Dim i As Integer = 75
' Return the value for red.
red = RGB(255, 0, 0)
' Same as RGB(75, 139, 203).
rgbValue = RGB(i, 64 + i, 128 + i)

.NET Framework
Available since 1.1
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