ImageAttributes.SetColorMatrix Method (ColorMatrix)
Sets the color-adjustment matrix for the default category.
Assembly: System.Drawing (in System.Drawing.dll)
An ImageAttributes object maintains color and grayscale settings for five adjustment categories: default, bitmap, brush, pen, and text. For example, you can specify a color-adjustment matrix for the default category, a different color-adjustment matrix for the bitmap category, and still a different color-adjustment matrix for the pen category.
The default color-adjustment and grayscale-adjustment settings apply to all categories that do not have adjustment settings of their own. For example, if you never specify any adjustment settings for the pen category, the default settings apply to the pen category.
Calling the method is equivalent to calling the ImageAttributes.SetColorMatrix(ColorMatrix, ColorMatrixFlag) method and passing ColorMatrixFlag.Default for the flags parameter. ColorMatrixFlag.Default specifies that all colors (including grays) are adjusted by the color-adjustment matrix
Creates a rectangle image that has all the color values set to 128, producing a rectangle that is filled with a solid medium-gray color. The code then draws this rectangle image to the screen.
Note that the second rectangle has the color red emphasized.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.