一個ICON圖標的轉換程序

抽空寫了一個ICON圖標的轉換程序，支持pngjpemp格式到ico的轉換。具體的程序就在下面，如果看的人多，過兩天再把思路寫一下。廢話不說，見代碼。

                                      

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace IconMaker
{
    public partial class Form1 : Form
    {
        Bitmap srcBitmap = null;//用於保存原圖
        Size size;//用於保存目標圖標的大小

        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 選擇源文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void browseBtn_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();

            dlg.Filter = "圖片(*.jpg,*.png,*.bmp)|*.jpg;*.png;*.bmp";//篩選文件格式
            dlg.ValidateNames = true;//文件有效性驗證ValidateNames，驗證用戶輸入是否是一個有效的Windows文件名
            dlg.CheckFileExists = true;///驗證文件有效性
            dlg.CheckPathExists = true;//驗證路徑有效性

            if (dlg.ShowDialog() == DialogResult.OK)
            {
                pathTb.Text = dlg.FileName;
                srcBitmap = new Bitmap(dlg.FileName);

                this.srcPanel.Refresh();
            }
        }

        /// <summary>
        /// 禁止用戶在此TextBox中輸入
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void textBox_KeyPress(object sender, KeyPressEventArgs e)
        {
            //禁止用戶輸入
            e.Handled = true;
        }

        /// <summary>
        /// 繪制原圖
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void srcPanel_Paint(object sender, PaintEventArgs e)
        {
            if (srcBitmap != null)
            {
                Graphics g = e.Graphics;

                //原圖的繪制區域
                Rectangle rect = new Rectangle(0, 0, this.srcPanel.Width, this.srcPanel.Height);
                //在規定區域縮放繪制原圖
                g.DrawImage(srcBitmap, rect);
            }
        }

        /// <summary>
        /// 實現bitmap到ico的轉換
        /// </summary>
        /// <param name="bitmap">原圖</param>
        /// <returns>轉換後的指定大小的圖標</returns>
        private Icon ConvertBitmap2Ico(Bitmap bitmap)
        {
            Bitmap icoBitmap = new Bitmap(bitmap, size);//創建制定大小的原位圖

            //獲得原位圖的圖標句柄
            IntPtr hIco = icoBitmap.GetHicon();
            //從圖標的指定WINDOWS句柄創建Icon
            Icon icon = Icon.FromHandle(hIco);

            return icon;
        }

        /// <summary>
        /// 生成並保存圖標
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void makeBtn_Click(object sender, EventArgs e)
        {
            if (pathTb.Text != "" && sizeComb.Text != "")
            {
                SaveFileDialog dlg = new SaveFileDialog();
              &n