从RGB整数转换为十六进制 [英] Converting from RGB ints to Hex

问题描述

我所拥有的是R:255 G:181 B:178，并且我正在C#中工作(更具体地说，对于WP8)

What I have is R:255 G:181 B:178, and I am working in C# (for WP8, to be more specific)

我想将其转换为十六进制数字以用作颜色(以设置WriteableBitmap的像素颜色).我正在做的事情如下:

I would like to convert this to a hex number to use as a color (to set the pixel color of a WriteableBitmap). What I am doing is the following:

int hex = (255 << 24) | ((byte)R << 16) | ((byte)G << 8) | ((Byte)B<<0);

但是当我这样做时，我只会变蓝.

But when I do this, I just get blue.

有任何想法我在做什么错吗?

Any ideas what I am doing wrong?

此外，要撤消此操作，要检查RGB值，我要进行以下操作:

Also, to undo this, to check the RGB values, I am going:

int r = ((byte)(hex >> 16)); // = 0
int g = ((byte)(hex >> 8)); // = 0
int b = ((byte)(hex >> 0)); // = 255

推荐答案

尝试以下操作:

using System.Drawing;
Color myColor = Color.FromArgb(255, 181, 178);
string hex = myColor.R.ToString("X2") + myColor.G.ToString("X2") + myColor.B.ToString("X2");

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