84 lines
2.3 KiB
C#
84 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Mesen.GUI.Forms.Config
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{
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public partial class frmGetKey : BaseForm, IMessageFilter
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{
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const int WM_KEYDOWN = 0x100;
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const int WM_KEYUP = 0x101;
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const int WM_SYSKEYDOWN = 0x104;
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const int WM_SYSKEYUP = 0x105;
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private bool _singleKeyMode = false;
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private string[] _invalidKeys = new string[] { "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12" };
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public frmGetKey(bool singleKeyMode)
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{
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InitializeComponent();
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_singleKeyMode = singleKeyMode;
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if(_singleKeyMode) {
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lblCurrentKeys.Height = 1;
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lblCurrentKeys.Visible = false;
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}
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ShortcutKey = new KeyCombination();
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InteropEmu.UpdateInputDevices();
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InteropEmu.ResetKeyState();
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//Prevent other keybindings from interfering/activating
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InteropEmu.DisableAllKeys(true);
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Application.AddMessageFilter(this);
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}
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bool IMessageFilter.PreFilterMessage(ref Message m)
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{
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if(m.Msg == WM_KEYUP || m.Msg == WM_SYSKEYUP) {
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int virtualKeyCode = (Int32)m.WParam;
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int scanCode = (Int32)(((Int64)m.LParam & 0x1FF0000) >> 16);
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InteropEmu.SetKeyState(scanCode, false);
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} else if(m.Msg == WM_SYSKEYDOWN || m.Msg == WM_KEYDOWN) {
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int virtualKeyCode = (Int32)((Int64)m.WParam & 0xFF);
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int scanCode = (Int32)(((Int64)m.LParam & 0x1FF0000) >> 16);
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InteropEmu.SetKeyState(scanCode, true);
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}
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return false;
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}
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protected override void OnFormClosing(FormClosingEventArgs e)
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{
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Application.RemoveMessageFilter(this);
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InteropEmu.ResetKeyState();
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InteropEmu.DisableAllKeys(false);
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base.OnFormClosing(e);
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}
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public KeyCombination ShortcutKey { get; set; }
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private List<UInt32> _prevScanCodes = new List<UInt32>();
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private void tmrCheckKey_Tick(object sender, EventArgs e)
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{
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List<UInt32> scanCodes = InteropEmu.GetPressedKeys();
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KeyCombination key = new KeyCombination(_prevScanCodes);
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lblCurrentKeys.Text = key.ToString();
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if(_singleKeyMode && _prevScanCodes.Count > 0 || scanCodes.Count < _prevScanCodes.Count) {
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if(!string.IsNullOrWhiteSpace(key.ToString())) {
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ShortcutKey = key;
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this.Close();
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}
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}
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_prevScanCodes = scanCodes;
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}
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}
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}
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