颜色绘制在PictureBox？ [英] Drawing Colors in a picturebox?

问题描述

在C＃中，我有一个图片。我想提请4种颜色。默认将白，红，绿，蓝。我如何得出这个picbox stritched这4种颜色？或者我应该有4个picbox？在这种情况下如何设置RGB颜色？

In C# i have a picturebox. i would like to draw 4 colors. The default will be white, red, green, blue. How do i draw these 4 colors stritched in this picbox? or should i have 4 picbox? in that case how do i set the rgb color?

推荐答案

您需要指定它是什么，你会特别喜欢画画。你不能画一个红色的 - 这是没有意义的。你可以，但是，战平位置（0,0）一个红色矩形为100像素高，100宽。我会回答，这只是我所能，

You need to specify what it is you would specifically like to draw. You can't draw a red - that makes no sense. You can, however, draw a red rectangle at location (0,0) which is 100 pixels tall and 100 wide. I will answer what I can, however.

如果你想要的形状的轮廓设置为特定的颜色，你可以创建一个的Pen 对象。如果你想填充形状与颜色，但是，那么你可以使用一个Brush对象。下面是你如何画用红色填充的矩形的例子，一个矩形绿色概述：

If you want to set the outline of a shape to a specific color, you would create a Pen object. If you want to fill a shape with a color, however, then you would use a Brush object. Here's an example of how you would draw a rectangle filled with red, and a rectangle outlined in green:

private void pictureBox_Paint(object sender, PaintEventArgs e)
{
	Graphics graphics = e.Graphics;

	Brush brush = new SolidBrush(Color.Red);
	graphics.FillRectangle(brush, new Rectangle(10, 10, 100, 100));

	Pen pen = new Pen(Color.Green);
	graphics.DrawRectangle(pen, new Rectangle(5, 5, 100, 100));
}

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