129 lines
4.4 KiB
C#
129 lines
4.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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namespace _29WxOrder
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{
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public class MyClip
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{
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[DllImport("user32.dll", CharSet = CharSet.Auto)]
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static public extern IntPtr SetClipboardData(uint Format, IntPtr hData);
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[DllImport("user32.dll", SetLastError = true)]
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static extern uint EnumClipboardFormats(uint format); //枚举剪贴板内数据类型
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[DllImport("user32.dll", SetLastError = true)]
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private static extern Int32 OpenClipboard(IntPtr hWndNewOwner);
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[DllImport("user32.dll", SetLastError = true)]
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private static extern IntPtr GetClipboardData(uint uFormat);
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[DllImport("user32.dll", SetLastError = true)]
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private static extern Int32 CloseClipboard();
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern Int32 GlobalLock(IntPtr hMem);
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[DllImport("kernel32.dll", SetLastError = true)]
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private static extern Int32 GlobalUnlock(IntPtr hMem);
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[DllImport("kernel32.dll")]
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public static extern uint GlobalSize(IntPtr hMem);
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/// <summary>
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/// 剪贴板数据保存目标数据列表
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/// </summary>
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private static List<byte[]> bytes = new List<byte[]>();
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/// <summary>
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/// 剪贴板数据类型列表
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/// </summary>
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private static List<uint> formats = new List<uint>();
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/// <summary>
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/// 保存剪贴板内容，返回真为成功，false为失败。
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/// </summary>
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/// <returns></returns>
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public static bool saveClip()
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{
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try
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{
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bool fi = true;
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if (OpenClipboard((IntPtr)0) < 1)
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{
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fi = false;
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return false;
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}
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else
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{
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bytes.Clear();
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formats.Clear();
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}
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IntPtr hMem = IntPtr.Zero;
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IntPtr lpStr = IntPtr.Zero;
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uint uFormat = 0;
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while (fi)
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{
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uFormat = EnumClipboardFormats(uFormat);//枚举剪贴板所有数据类型
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if (uFormat > 0)
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{
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formats.Add(uFormat);
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hMem = GetClipboardData(uFormat);
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lpStr = (IntPtr)GlobalLock(hMem);
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if (hMem != (IntPtr)0)
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{
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uint size = GlobalSize(hMem);
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IntPtr s = (IntPtr)GlobalLock(hMem);
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byte[] buffer = new byte[(int)size];
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if (size > 0)
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{
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Marshal.Copy(s, buffer, 0, (int)size);//将剪贴板数据保存到自定义字节数组
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}
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GlobalUnlock(hMem);
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bytes.Add(buffer);
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}
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}
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else
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{
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fi = false;
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}
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}
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CloseClipboard();
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if (formats.Count > 0)
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{ return true; }
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else { return false; }
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}
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catch (Exception)
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{
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}
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return false;
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}
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/// <summary>
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/// 恢复保存的数据
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/// </summary>
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/// <returns></returns>
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public static bool restoreClip()
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{
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bool fi = true;
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if (formats.Count <= 0) { return false; }
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if (OpenClipboard((IntPtr)0) < 1)
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{
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fi = false;
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return false;
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}
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if (fi)
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{
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for (int i = 0; i < formats.Count; i++)
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{
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int size = bytes[i].Length;
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IntPtr si = Marshal.AllocHGlobal(size);
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if (size > 0)
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{
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Marshal.Copy(bytes[i], 0, si, size);
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}
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else { }
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SetClipboardData(formats[i], si);
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}
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}
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CloseClipboard();
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if (formats.Count > 0)
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{ return true; }
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else { return false; }
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}
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}
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}
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