controlpaint.cs

语音视频功能 里面实现了基本的QQ与语音对话

using System;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.Collections;
using System.Drawing;

namespace gowk.controls
{
	/// <summary>
	/// ControlPaint 的摘要说明。
	/// </summary>
	public class ControlPaint
	{
		public static void SetImageAlpha(Image img,int alpha)
		{
			Bitmap bm=new Bitmap(img);
		}
		public static Bitmap GetImage(Image img,int hue)
		{
			Bitmap bm=new Bitmap(img);
			for(int i=0;i<bm.Width;i++)
			{
				for(int j=0;j<bm.Height;j++)
				{

					Color c=bm.GetPixel(i,j);
					bm.SetPixel(i,j,GetNewColor(c,hue));
				}
			}
			return bm;
		}
		public static Color GetNewColor(Color c,int hue)
		{
			if(hue>360)
				hue=360;
			else if(hue<0)
				hue=0;
			float r,g,b;
			ConvertHSBToRGB(hue,c.GetSaturation(),c.GetBrightness(),out r,out g,out b);
			r=r*255;
			g=g*255;b=b*255;
			return Color.FromArgb(c.A,(int)r,(int)g,(int)b);
		}
		public static void ConvertHSBToRGB(float h, float s, float v, out float r, out float g, out float b) 
 
		{ 
 
			if (s == 0f) 
 
			{ 
 
				// if s = 0 then h is undefined 
 
				r = v; 
 
				g = v; 
 
				b = v; 
 
			} 
 
			else 
 
			{ 
 
				float hue = (float)h; 
 
				if (h == 360.0f) 
 
				{ 
 
					hue = 0.0f; 
 
				} 
 
				hue /= 60.0f; 
 
				int i = (int)Math.Floor((double)hue); 
 
				float f = hue - i; 
 
				float p = v * (1.0f - s); 
 
				float q = v * (1.0f - (s * f)); 
 
				float t = v * (1.0f - (s * (1 - f))); 
 

 
				switch(i) 
 
				{ 
 
					case 0: r = v; g = t; b = p; break; 
 
					case 1: r = q; g = v; b = p; break; 
 
					case 2: r = p; g = v; b = t; break; 
 
					case 3: r = p; g = q; b = v; break; 
 
					case 4: r = t; g = p; b = v; break; 
 
					case 5: r = v; g = p; b = q; break; 
 

 
					default: r = 0.0f; g = 0.0f; b = 0.0f; break; /*Trace.Assert(false);*/ // hue out of range 
 
				} 
 
			} 
		}

	}
}