form1.cs

150个经典的入门学习程序源代码

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace Example020_设计字型窗体
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		[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);

		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Name = "Form1";
			this.Text = "Form1";
			this.Load += new System.EventHandler(this.Form1_Load);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		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
		}
	}
}