89 lines
3.3 KiB
C#
89 lines
3.3 KiB
C#
using anjianjingling.Common;
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using anjianjingling.Native;
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using System.Runtime.InteropServices;
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namespace anjianjingling.Input
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{
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/// <summary>
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/// 系统级键盘模拟（SendInput）：单键、组合键、Unicode 文本。
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/// </summary>
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public sealed class KeyboardInput
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{
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private static void SendKey(Win32.KEYBDINPUT ki)
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{
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var input = new Win32.INPUT
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{
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type = Win32.INPUT_KEYBOARD,
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u = new Win32.INPUTUNION { ki = ki }
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};
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Win32.SendInput(1, new[] { input }, Marshal.SizeOf<Win32.INPUT>());
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}
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/// <summary>发送一次按键（按下并弹起）。</summary>
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public void KeyPress(string keyName)
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{
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ushort vk = ResolveOrThrow(keyName);
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KeyDownVk(vk);
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Thread.Sleep(30);
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KeyUpVk(vk);
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}
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public void KeyDown(string keyName) => KeyDownVk(ResolveOrThrow(keyName));
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public void KeyUp(string keyName) => KeyUpVk(ResolveOrThrow(keyName));
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private static void KeyDownVk(ushort vk)
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{
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ushort scan = (ushort)Win32.MapVirtualKey(vk, Win32.MAPVK_VK_TO_VSC);
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uint flags = Win32.KEYEVENTF_SCANCODE;
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if (VirtualKeys.IsExtended(vk)) flags |= Win32.KEYEVENTF_EXTENDEDKEY;
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SendKey(new Win32.KEYBDINPUT { wVk = vk, wScan = scan, dwFlags = flags });
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}
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private static void KeyUpVk(ushort vk)
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{
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ushort scan = (ushort)Win32.MapVirtualKey(vk, Win32.MAPVK_VK_TO_VSC);
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uint flags = Win32.KEYEVENTF_SCANCODE | Win32.KEYEVENTF_KEYUP;
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if (VirtualKeys.IsExtended(vk)) flags |= Win32.KEYEVENTF_EXTENDEDKEY;
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SendKey(new Win32.KEYBDINPUT { wVk = vk, wScan = scan, dwFlags = flags });
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}
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/// <summary>
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/// 组合键，如 "Ctrl+A"、"Ctrl+Shift+Esc"：修饰键依次按下，主键按下弹起，修饰键逆序弹起。
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/// </summary>
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public void HotKey(string expression)
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{
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var parts = expression.Split('+', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries);
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if (parts.Length == 0) throw new ArgumentException($"无法解析组合键：{expression}");
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var vks = parts.Select(ResolveOrThrow).ToArray();
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for (int i = 0; i < vks.Length - 1; i++) KeyDownVk(vks[i]);
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Thread.Sleep(40);
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KeyDownVk(vks[^1]);
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Thread.Sleep(40);
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KeyUpVk(vks[^1]);
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for (int i = vks.Length - 2; i >= 0; i--)
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{
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Thread.Sleep(20);
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KeyUpVk(vks[i]);
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}
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}
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/// <summary>
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/// 输入整段文本（含中文），使用 KEYEVENTF_UNICODE，不依赖键盘布局。
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/// </summary>
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public void TypeText(string text)
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{
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foreach (char c in text)
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{
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SendKey(new Win32.KEYBDINPUT { wScan = c, dwFlags = Win32.KEYEVENTF_UNICODE });
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SendKey(new Win32.KEYBDINPUT { wScan = c, dwFlags = Win32.KEYEVENTF_UNICODE | Win32.KEYEVENTF_KEYUP });
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}
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}
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private static ushort ResolveOrThrow(string name)
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=> VirtualKeys.Resolve(name)
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?? throw new ArgumentException($"未知按键名：\"{name}\"（可用如 A、F5、ENTER、SPACE、方向键等）");
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}
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}
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