Colors and Brushes
<Window x:Class="WpfApplication1.ColorExample"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Color Example" Height="300" Width="300">
<StackPanel>
<TextBlock Text="Select Color"/>
<ListBox Name="listBox1" SelectionChanged="listBox1SelectionChanged"/>
<TextBlock Text="Show selected color:" Margin="5,5,5,0" />
<Rectangle x:Name="rect1" Stroke="Blue" Fill="AliceBlue"/>
<TextBlock Text="Opacity:" Margin="5,5,5,0" />
<TextBox x:Name="textBox" HorizontalAlignment="Left" TextAlignment="Center" Text="1" Width="50" Margin="5,5,5,8" />
<TextBlock FontWeight="Bold" Text="sRGB Information:" Margin="5,5,5,2" />
<TextBlock FontWeight="Bold" Text="ScRGB Information:" Margin="5,5,5,2" />
</StackPanel>
</Window>
//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Reflection;
using System.Collections.Generic;
namespace WpfApplication1
{
public partial class ColorExample : Window
{
private Color color;
SolidColorBrush colorBrush = new SolidColorBrush();
public ColorExample()
{
InitializeComponent();
Type colorsType = typeof(Colors);
foreach (PropertyInfo property in colorsType.GetProperties())
{
listBox1.Items.Add(property.Name);
color = Colors.AliceBlue;
listBox1.SelectedIndex = 0;
ColorInfo();
}
}
private void listBox1SelectionChanged(object sender, EventArgs e)
{
string colorString = listBox1.SelectedItem.ToString();
color = (Color)ColorConverter.ConvertFromString(colorString);
float opacity = Convert.ToSingle(textBox.Text);
if (opacity > 1.0f)
opacity = 1.0f;
else if (opacity < 0.0f)
opacity = 0.0f;
color.ScA = opacity;
ColorInfo();
}
private void ColorInfo()
{
rect1.Fill = new SolidColorBrush(color);
Console.WriteLine("Alpha = " + color.A.ToString());
Console.WriteLine("Red = " + color.R.ToString());
Console.WriteLine("Green = " + color.G.ToString());
Console.WriteLine("Blue = " + color.B.ToString());
string rgbHex = string.Format("{0:X2}{1:X2}{2:X2}{3:X2}",
color.A, color.R, color.G, color.B);
Console.WriteLine("ARGB = #" + rgbHex);
Console.WriteLine("ScA = " + color.ScA.ToString());
Console.WriteLine("ScR = " + color.ScR.ToString());
Console.WriteLine("ScG = " + color.ScG.ToString());
Console.WriteLine("ScB = " + color.ScB.ToString());
}
}
}
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