C#字型窗体

实现：

[System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern IntPtr CreateFont(int H,int W,int E,int O,int FW,int I,int u,int S,int C,int OP,int CP,int Q,int PAF,string F);  [System.Runtime.InteropServices.DllImport("user32")]
   private static extern IntPtr GetDC(IntPtr hwnd);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern IntPtr BeginPath(IntPtr hdc);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern IntPtr EndPath(IntPtr hdc);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern IntPtr PathToRegion(IntPtr hdc);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern int SetBkMode(IntPtr hdc,int nBkMode);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern IntPtr SelectObject(IntPtr hdc,IntPtr hObject);  [System.Runtime.InteropServices.DllImport("gdi32")]
   private static extern int TextOut(IntPtr hdc,int x,int y,string lpString, int nCount);
                                           
   [System.Runtime.InteropServices.DllImport("user32")]
   private static extern IntPtr SetWindowRgn(IntPtr hwnd,IntPtr hRgn,bool bRedraw);
  
  
  
  
   const int FW_HEAVY = 900;
   const int ANSI_CHARSET = 0;
   const int OUT_DEFAULT_PRECIS = 0;
   const int CLIP_DEFAULT_PRECIS = 0;
   const int DEFAULT_QUALITY = 0;
   const int DEFAULT_PITCH = 0;
   const int FF_SWISS = 32;
   const int TRANSPARENT = 1;
   
  
  
    private void Form1_Load(object sender, System.EventArgs e)
   {
    IntPtr dc=GetDC(this.Handle);
    IntPtr m_Font=CreateFont(200, 100, 0, 0, FW_HEAVY, 1, 0,
                     0, ANSI_CHARSET, OUT_DEFAULT_PRECIS,
                     CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY,
                     DEFAULT_PITCH | FF_SWISS, "宋体");
    //创建字体   BeginPath(dc);
    //开始记录窗体轮廓路径   SetBkMode(dc,TRANSPARENT);
    //设置背景为透明模式,这是必须有的   IntPtr m_OldFont=SelectObject(dc,m_Font);
    TextOut(dc,0, 0, "C#",2);
    SelectObject(dc,m_OldFont);   EndPath(dc);   //结束记录窗体轮廓路径
   IntPtr m_wndRgn=PathToRegion(dc);
    //把所记录的路径转化为窗体轮廓句柄   SetWindowRgn(this.Handle,m_wndRgn,true);
    //赋予窗体指定的轮廓形状
    }