How to compare a System.Drawing.Color and a System.Windows.Media.Color?

Question

How to test whether a System.Drawing.Color and a System.Windows.Media.Color describe the same colour?

I tried

colour1 == colour2

but I get an error

Operator '==' cannot be applied to operands of type 'System.Drawing.Color' and 'System.Windows.Media.Color

Hi Ani. The question you suggest is a duplicate is nonsense - it doesn't even contain any words! — Colonel Panic, Feb 25 '13 at 10:34
@ColonelPanic, using the suggested duplicate as a reference this would be pretty easy to solve. It seem like you have put any effort in yourself. — Ash Burlaczenko, Feb 25 '13 at 10:44

score 2 · Answer 1 · edited May 23 '17 at 11:49

2

You have 2 options:

Convert from one type to the other, which is covered here, and then use the '==' operator.

Compare the individual components. Since both of them have the R, G, B, A properties as bytes, you can simply do:

bool ColorsEqual (System.Drawing.Color c1, System.Windows.Media.Color c2)
{
    return c1.R == c2.R && c1.G == c2.G 
        && c1.B == c2.B && c1.A == c2.A;
}

edited May 23 '17 at 11:49

Community

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answered Feb 25 '13 at 10:39

Tibi

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score 0 · Answer 2 · answered Feb 25 '13 at 10:38

As there is no operator== overloaded for these two types, you could acquire the string-values of the color or the ARGB-values.

System.Drawing.Color c1 = System.Drawing.Color.FromArgb(255,0,0,0);
System.Windows.Media.Color c2 = System.Windows.Media.Color(255,0,0,0);
if(c1.A == c2.A && c1.R == c2.R && ...

Look here and here.

score 0 · Answer 3 · answered Feb 25 '13 at 10:40

You can make an extension method to the System.Drawing.Color that converts to a System.Windows.Media.Color and then compare on the System.Windows.Media.Color type:

public static System.Windows.Media.Color ToMediaColor(this System.Drawing.Color color)
{
    return System.Windows.Media.Color.FromArgb(color.A, color.R, color.G, color.B);
}

How to compare a System.Drawing.Color and a System.Windows.Media.Color?

3 Answers3