C#+Winform : Aero 特效的快速搜索框 X

平时上网都会用到搜索引擎，但是每次都要去打开浏览器，然后打开百度或谷歌。。。   这样做总觉得很烦 ！ 为了不让自己能快点搜出东西，我就做了小工具  QuickSearch         

其实实现原理很简单：

就是先去找到那些搜索引擎的搜索字符串，例如百度的 http://www.baidu.com/s?wd= ，我们只需要在=后面加想搜的关键字就能搜到我们想要的内容，不过百度的关键字是utf-8编码的，所以我们就要进行编码转换 应为我是用C#开发 默认的是Unicode编码 

 转换方法：先添加应用 System.Web，

   string result = System.Web.HttpUtility.UrlEncode(word, System.Text.Encoding.GetEncoding("utf-8"));

为了方便我还添加了快捷键：Ctrl+Q 实现快速显示窗体

Code:

    [System.Runtime.InteropServices.DllImport("user32.dll")] //申明API函数
　     public static extern bool RegisterHotKey(
         IntPtr hWnd, // handle to window 
         int id, // hot key identifier 
         uint fsModifiers, // key-modifier options 
         Keys vk // virtual-key code 
        );
        [System.Runtime.InteropServices.DllImport("user32.dll")] //申明API函数
        public static extern bool UnregisterHotKey(
         IntPtr hWnd, // handle to window 
         int id // hot key identifier 
        );


        protected override void WndProc(ref Message m)
        {
            const int WM_HOTKEY = 0x0312;

            if (WM_HOTKEY == m.Msg)
            {
                if (m.WParam.ToInt32() == 101)
                { 
                    hidWindows(); 
                }
            }
            base.WndProc(ref m);
        }


     //显示 or 隐藏
     private void hidWindows()
        {
            if (this.Visible == false)
            {
                this.Visible = true;
                this.TopMost = true;
            }
            else
            {
                this.Visible = false;
            }
        }

注册快捷键：
/*        None = 0,   
            Alt = 1,   
            Ctrl = 2,   
            Shift = 4,   
            WindowsKey = 8  */
       RegisterHotKey(Handle, 101, 2, Keys.Q);

为了好看还加入Aero特效 这是Windows7自带的效果 ，直接写了类

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace QuickSearch
{
    public partial class AeroForm
    {
        [DllImport("dwmapi.dll")]
        private static extern void DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMargins);

        [StructLayout(LayoutKind.Sequential)]
        private struct MARGINS
        {
            public int left, right, top, bottom;
        }

        public static  void AeroEffect(Form f1)
        {
            MARGINS m = new MARGINS()
            {
                left = -1
            };
            DwmExtendFrameIntoClientArea(f1.Handle, ref m);
            Color aeroColor = Color.FromArgb(164, 212, 211);
            f1.TransparencyKey = aeroColor;
            f1.BackColor = aeroColor;
        }
    }
}

搜索代码：

            string result = System.Web.HttpUtility.UrlEncode(word, System.Text.Encoding.GetEncoding("utf-8"));
           
            switch (btnSearch.ButtonText)
            {
                case "百度一下":
                    Process.Start(@"http://www.baidu.com/s?wd=" + result);
                    this.TopMost = false;
                    break;
                case "Google":
                    Process.Start(@"http://www.google.com.hk/search?q=" + result);
                    this.TopMost = false;
                    break;
                case "有道搜索":
                    string youdao = HttpUtility.UrlEncode(word, Encoding.GetEncoding("gbk"));
                    Process.Start(@"http://www.youdao.com/search?q=" +youdao);
                    this.TopMost = false;
                    break;
                case"搜搜":
                     string soso=HttpUtility.UrlEncode(word,Encoding.GetEncoding("gbk"));
                    Process.Start(@"http://www.soso.com/q?pid=s.idx&w="+soso);
                    this.TopMost = false;
                    break;
                    case "MSDN":
                    this.TopMost = false;
                    Process.Start(@"http://social.msdn.microsoft.com/Search/zh-cn?query=" + result + "+");
                    break;
            }
            this.Visible = false;
            txtKeyWord.Text = "";
        }

搜索演示截图：