从 Brush/Pens 转换为颜色

Question

我正在制作一个绘图程序，PictureBox Graphics 的颜色支持 FillShape 中的 Brushes 和 DrawShape 中的 Pens。

如果您有任何解决方案，请告诉我如何将 Brush/Pens 转换为颜色？所以我也可以使用 ColorDialog 来自定义颜色。

Answer 1

我想你想要的是能够从一种颜色中创建画笔或钢笔。在那种情况下，应该这样做：

        'create a brush from a known colour
        Dim brush = New SolidBrush(Color.AliceBlue)
        'create a brush from a user defined colour
        Dim brush2 = New SolidBrush(Color.FromArgb(128, 128, 128))
        'create a pen from a known colour
        Dim pen = New Pen(Color.Red)
        'create a pen from a custom colour
        Dim pen2 = New Pen(Color.FromArgb(0, 128, 255))
        'create a pen from a brush
        Dim pen3 = New Pen(brush)

        'don't forget to dispose of your brushes/pens when finished
        brush.Dispose()
        brush2.Dispose()
        pen.Dispose()
        pen2.Dispose()
        pen3.Dispose()

从 Brush/Pens 转换为颜色

Converting From Brush/Pens To Color

.net

vb.net

gdi+

brush

pen