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This commit is contained in:
Frank Skare
299
mpv.net/WPF/LearnWindow.xaml.cs
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299
mpv.net/WPF/LearnWindow.xaml.cs
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using System;
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using System.Runtime.InteropServices;
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Interop;
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using WF = System.Windows.Forms;
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namespace mpvnet
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{
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public partial class LearnWindow : Window
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{
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public CommandItem InputItem { get; set; }
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public string NewKey { get; set; } = "";
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public LearnWindow()
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{
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InitializeComponent();
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}
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private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
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{
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WF.Message m = new WF.Message();
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m.HWnd = hwnd;
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m.Msg = msg;
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m.WParam = wParam;
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m.LParam = lParam;
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ProcessKeyEventArgs(ref m);
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return m.Result;
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}
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void OnKeyUp(WF.KeyEventArgs e)
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{
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if (e.KeyCode == WF.Keys.ControlKey || e.KeyCode == WF.Keys.ShiftKey ||
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e.KeyCode == WF.Keys.Menu || e.KeyCode == WF.Keys.None)
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return;
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string text = "";
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uint charValue = MapVirtualKey((uint)e.KeyCode, 2);
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if (charValue == 0 || (charValue & 1 << 31) == 1 << 31)
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text = e.KeyCode.ToString().Trim();
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else
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try {
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text = Convert.ToChar(charValue).ToString().ToLower().Trim();
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}
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catch {}
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for (int i = 0; i < 13; i++)
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if ("D" + i.ToString() == text)
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text = text.Substring(1);
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switch (e.KeyCode)
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{
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case WF.Keys.NumPad0:
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case WF.Keys.NumPad1:
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case WF.Keys.NumPad2:
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case WF.Keys.NumPad3:
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case WF.Keys.NumPad4:
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case WF.Keys.NumPad5:
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case WF.Keys.NumPad6:
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case WF.Keys.NumPad7:
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case WF.Keys.NumPad8:
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case WF.Keys.NumPad9:
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text = "KP" + e.KeyCode.ToString()[6].ToString(); break;
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case WF.Keys.Space:
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text = "Space"; break;
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case WF.Keys.Enter:
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text = "Enter"; break;
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case WF.Keys.Tab:
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text = "Tab"; break;
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case WF.Keys.Back:
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text = "BS"; break;
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case WF.Keys.Delete:
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text = "Del"; break;
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case WF.Keys.Insert:
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text = "Ins"; break;
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case WF.Keys.Home:
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text = "Home"; break;
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case WF.Keys.End:
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text = "End"; break;
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case WF.Keys.PageUp:
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text = "PGUP"; break;
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case WF.Keys.PageDown:
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text = "PGDWN"; break;
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case WF.Keys.Escape:
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text = "Esc"; break;
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case WF.Keys.PrintScreen:
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text = "Print"; break;
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case WF.Keys.Play:
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text = "Play"; break;
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case WF.Keys.Pause:
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text = "Pause"; break;
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case WF.Keys.MediaPlayPause:
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text = "PlayPause"; break;
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case WF.Keys.MediaStop:
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text = "Stop"; break;
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case WF.Keys.MediaNextTrack:
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text = "Next"; break;
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case WF.Keys.MediaPreviousTrack:
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text = "Prev"; break;
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case WF.Keys.VolumeUp:
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text = "Volume_Up"; break;
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case WF.Keys.VolumeDown:
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text = "Volume_Down"; break;
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case WF.Keys.VolumeMute:
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text = "Mute"; break;
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case WF.Keys.BrowserHome:
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text = "Homepage"; break;
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case WF.Keys.LaunchMail:
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text = "Mail"; break;
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case WF.Keys.BrowserFavorites:
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text = "Favorites"; break;
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case WF.Keys.BrowserSearch:
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text = "Search"; break;
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case WF.Keys.Sleep:
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text = "Sleep"; break;
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case WF.Keys.Cancel:
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text = "Cancel"; break;
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}
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bool shiftWasHandled = false;
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bool isAlt = GetKeyState(18) < (short)0;
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bool isShift = GetKeyState(16) < (short)0;
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bool isCtrl = GetKeyState(17) < (short)0;
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if (text.Length == 1 && isShift && text[0] != GetModifiedKey(text[0]))
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{
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text = GetModifiedKey(text[0]).ToString();
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shiftWasHandled = true;
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}
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if (text == "#") text = "Sharp";
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if (isAlt) text = "Alt+" + text;
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if (isShift && !shiftWasHandled) text = "Shift+" + text;
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if (isCtrl) text = "Ctrl+" + text;
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if (!string.IsNullOrEmpty(text))
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SetKey(text);
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}
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void SetKey(string key)
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{
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NewKey = key;
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MenuLabel.Content = InputItem.Path;
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KeyLabel.Content = key;
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}
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[DllImport("user32.dll")]
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static extern uint MapVirtualKey(uint uCode, uint uMapType);
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public static WF.Keys ModifierKeys {
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get {
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WF.Keys keys = WF.Keys.None;
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if (GetKeyState(17) < (short)0)
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keys |= WF.Keys.Control;
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if (GetKeyState(16) < (short)0)
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keys |= WF.Keys.Shift;
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if (GetKeyState(18) < (short)0)
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keys |= WF.Keys.Alt;
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return keys;
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}
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}
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public static char GetModifiedKey(char c)
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{
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short vkKeyScanResult = VkKeyScan(c);
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if (vkKeyScanResult == -1)
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return c;
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uint code = (uint)vkKeyScanResult & 0xff;
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byte[] b = new byte[256];
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b[0x10] = 0x80;
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uint r;
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if (1 != ToAscii(code, code, b, out r, 0))
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return c;
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return (char)r;
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}
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void ProcessKeyEventArgs(ref WF.Message m)
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{
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int WM_KEYUP = 0x0101, WM_SYSKEYUP = 0x0105, WM_APPCOMMAND = 0x0319;
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if (m.Msg == WM_KEYUP || m.Msg == WM_SYSKEYUP)
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OnKeyUp(new WF.KeyEventArgs((WF.Keys)(unchecked((int)(long)m.WParam)) | ModifierKeys));
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else if (m.Msg == WM_APPCOMMAND)
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{
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switch ((AppCommand)(m.LParam.ToInt32() >> 16))
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{
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case AppCommand.MEDIA_CHANNEL_DOWN:
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SetKey("Channel_Down");
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break;
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case AppCommand.MEDIA_CHANNEL_UP:
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SetKey("Channel_Up");
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break;
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case AppCommand.MEDIA_FAST_FORWARD:
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SetKey("Forward");
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break;
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case AppCommand.MEDIA_REWIND:
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SetKey("Rewind");
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break;
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case AppCommand.MEDIA_PAUSE:
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SetKey("Pause");
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break;
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case AppCommand.MEDIA_PLAY:
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SetKey("Play");
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break;
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case AppCommand.MEDIA_PLAY_PAUSE:
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SetKey("PlayPause");
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break;
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case AppCommand.MEDIA_NEXTTRACK:
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SetKey("Next");
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break;
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case AppCommand.MEDIA_PREVIOUSTRACK:
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SetKey("Prev");
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break;
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case AppCommand.MEDIA_RECORD:
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SetKey("Record");
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break;
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case AppCommand.MEDIA_STOP:
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SetKey("Stop");
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break;
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case AppCommand.VolumeUp:
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SetKey("Volume_Up");
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break;
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case AppCommand.VolumeDown:
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SetKey("Volume_Down");
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break;
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case AppCommand.VolumeMute:
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SetKey("Mute");
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break;
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}
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}
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}
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internal enum AppCommand
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{
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MEDIA_CHANNEL_DOWN = 52,
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MEDIA_CHANNEL_UP = 51,
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MEDIA_FAST_FORWARD = 49,
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MEDIA_NEXTTRACK = 11,
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MEDIA_PAUSE = 47,
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MEDIA_PLAY = 46,
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MEDIA_PLAY_PAUSE = 14,
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MEDIA_PREVIOUSTRACK = 12,
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MEDIA_RECORD = 48,
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MEDIA_REWIND = 50,
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MEDIA_STOP = 13,
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VolumeMute = 8,
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VolumeDown = 9,
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VolumeUp = 10
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}
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[DllImport("user32.dll", CharSet = CharSet.Auto)]
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public static extern short GetKeyState(int keyCode);
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[DllImport("user32.dll")]
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static extern short VkKeyScan(char c);
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[DllImport("user32.dll", SetLastError = true)]
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static extern int ToAscii(uint uVirtKey,
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uint uScanCode,
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byte[] lpKeyState,
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out uint lpChar,
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uint flags);
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private void Window_Loaded(object sender, RoutedEventArgs e)
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{
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HwndSource source = HwndSource.FromHwnd(new WindowInteropHelper(this).Handle);
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source.AddHook(new HwndSourceHook(WndProc));
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SetKey(InputItem.Input);
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}
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private void ConfirmButton_Click(object sender, RoutedEventArgs e)
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{
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InputItem.Input = NewKey;
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Close();
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}
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private void ClearButton_Click(object sender, RoutedEventArgs e)
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{
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InputItem.Input = "_";
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Close();
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}
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private void Window_MouseWheel(object sender, MouseWheelEventArgs e)
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{
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if (e.Delta > 0)
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SetKey("WHEEL_UP");
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else
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SetKey("WHEEL_DOWN");
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}
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}
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}
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