How to get hex string of brush after changing opacity?

[gubbar924]

hello,

Does anybody know how to retrieve the 8 digit hex string of a brush after changing its opacity?

for example:

Brush OpaceBrush              = this.Stroke.Brush.Clone();
Print(OpaceBrush.ToString());
OpaceBrush.Opacity           = 0.1;
Print(OpaceBrush.ToString());

Both print outs return the exact same value. The 2nd print out does not reflect any change in opacity/alpha.


Thanks!

[NinjaTrader_ChelseaB]

Hello gubbar924,

From my understanding using System.Windows.Media.Brush.ToString() would print the solid color brush color which is a solid fill color.

If you print the .Opacity property, are you finding this is not changing to the set value?

Print(OpaceBrush.Opacity);

[gubbar924]

Chelsea,

I ran the following code

Brush OpaceBrush              = this.Stroke.Brush.Clone();
                    Print(OpaceBrush.ToString());
                    OpaceBrush.Opacity              = 0.05;
                    Print(OpaceBrush.Opacity);
                    Print(OpaceBrush.ToString());
                    OpaceBrush                      = null;

and it resulted in

#FF1E90FF
0.05
#FF1E90FF

However, I do know that after changing the Opacity property, if I set the color of something like:

Something.Background = OpaceBrush;

It does in fact use the changed opacity correctly, but it still wont give me the new hex value.

[NinjaTrader_ChelseaB]

Hello gubbar924,

From my understanding, in C# the Brush.ToString() prints the solid fill color hexadecimal. This would not include opacity.

[gubbar924]

Hi Chelsea,

I think I've figured out what I'm looking for.


Just in case anybody else needs it, here is an example code:

                    Brush OpaceBrush              = this.Stroke.Brush.Clone();
                    Print(OpaceBrush.ToString());
                    OpaceBrush.Opacity              = 0.05;
                    Print(OpaceBrush.Opacity);
                    Print(Environment.NewLine);
                    
                    Color nw  = ((SolidColorBrush)OpaceBrush).Color;
                    Print(nw.ToString());
                    nw.A = (byte)(OpaceBrush.Opacity * 255);
                    Print(nw.A);
                    Print(nw.ToString());
                    
                    OpaceBrush                      = null;

Now, I get a new hex code value:

#FF1E90FF
0.05

#FF1E90FF
12
#0C1E90FF

Thanks!