private IList<KeyboardButton> FindButtonList(KeyExEventArgs args)
{
short key = (short)args.KeyValue;
if (key == KeyboardConstaint.VK_LCONTROL || key == KeyboardConstaint.VK_RCONTROL)
{
key = KeyboardConstaint.VK_CONTROL;
}
else if (key == KeyboardConstaint.VK_LSHIFT || key == KeyboardConstaint.VK_RSHIFT)
{
key = KeyboardConstaint.VK_SHIFT;
}
else if (key == KeyboardConstaint.VK_LMENU || key == KeyboardConstaint.VK_RMENU)
{
key = KeyboardConstaint.VK_MENU;
}
else if (key == KeyboardConstaint.VK_RWIN)
{
key = KeyboardConstaint.VK_LWIN;
}
if (combinationVKButtonsMap.ContainsKey(key))
{
return combinationVKButtonsMap[key];
}
IList<KeyboardButton> buttonList = new List<KeyboardButton>();
foreach (System.Windows.Forms.Control ctrl in this.Controls)
{
KeyboardButton button = ctrl as KeyboardButton;
if (button == null)
{
continue;
}
short theKey = button.VKCode;
if (theKey == key)
{
IDictionary<KeyboardButton, KeyboardButton> buttonMap = new Dictionary<KeyboardButton, KeyboardButton>();
buttonMap.Add(this.btnENT, this.btnNUMENT);
buttonMap.Add(this.btnNUM0, this.btnINS);
buttonMap.Add(this.btnNUMDot, this.btnDEL);
buttonMap.Add(this.btnNUM1, this.btnEND);
buttonMap.Add(this.btnNUM2, this.btnDN);
buttonMap.Add(this.btnNUM3, this.btnPDN);
buttonMap.Add(this.btnNUM4, this.btnLA);
buttonMap.Add(this.btnNUM6, this.btnRA);
buttonMap.Add(this.btnNUM7, this.btnHM);
buttonMap.Add(this.btnNUM8, this.btnUP);
buttonMap.Add(this.btnNUM9, this.btnPUP);
if (buttonMap.ContainsKey(button))
{
if ((args.Flags & 0x00000001) == 0)
{
buttonList.Add(button);
}
else {
buttonList.Add(buttonMap[button]);
}
}
else if (buttonMap.Values.Contains(button))
{
if ((args.Flags & 0x00000001) == 0)
{
KeyboardButton keyButton = null;
foreach (KeyValuePair<KeyboardButton, KeyboardButton> entry in buttonMap)
{
if (object.ReferenceEquals(entry.Value, button))
{
keyButton = entry.Key;
break;
}
}
if (keyButton != null)
{
buttonList.Add(keyButton);
}
}
else {
buttonList.Add(button);
}
}
else {
buttonList.Add(button);
}
}
}
return buttonList;
}
private void SetButtonStatus(KeyExEventArgs args, bool isDown)
{
IList<KeyboardButton> buttonList = FindButtonList(args);
if (buttonList.Count <= 0)
{
return;
}
short key = (short)args.KeyValue;
if (spacialVKButtonsMap.ContainsKey(key))
{
if (!isDown)
{
KeyboardButton button = spacialVKButtonsMap[key][0];
button.Checked = !button.Checked;
}
}
else {
foreach (KeyboardButton button in buttonList)
{
button.Checked = isDown;
}
}
SetButtonText();
}
private void HookOnGlobalKeyDown(object sender, KeyExEventArgs e)
{
SetButtonStatus(e, true);
}
private void HookOnGlobalKeyUp(object sender, KeyExEventArgs e)
{
SetButtonStatus(e, false);
}
private IntPtr KeyboardHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
//indicates if any of underlaing events set e.Handled flag
bool handled = false;
EventHandler<KeyExEventArgs> handlerKeyDown = this.Events[EventKeyDown] as EventHandler<KeyExEventArgs>;
EventHandler<KeyExEventArgs> handlerKeyUp = this.Events[EventKeyUp] as EventHandler<KeyExEventArgs>;
EventHandler<KeyPressExEventArgs> handlerKeyPress = this.Events[EventKeyPress] as EventHandler<KeyPressExEventArgs>;
//it was ok and someone listens to events
if ((nCode >= 0) && (handlerKeyDown != null || handlerKeyUp != null || handlerKeyPress != null))
{
//read structure KeyboardHookStruct at lParam
KeyboardHookStruct MyKeyboardHookStruct = (KeyboardHookStruct)Marshal.PtrToStructure(lParam, typeof(KeyboardHookStruct));
//raise KeyDown
if (handlerKeyDown != null && ((int)wParam == WM_KEYDOWN || (int)wParam == WM_SYSKEYDOWN))
{
Keys keyData = (Keys)MyKeyboardHookStruct.vkCode;
KeyExEventArgs e = new KeyExEventArgs(keyData, MyKeyboardHookStruct.flags);
handlerKeyDown(this, e);
handled = handled || e.Handled;
}
// raise KeyPress
if (handlerKeyPress != null && (int)wParam == WM_KEYDOWN)
{
bool isDownShift = ((GetKeyState(VK_SHIFT) & 0x80) == 0x80 ? true : false);
bool isDownCapslock = (GetKeyState(VK_CAPITAL) != 0 ? true : false);
byte[] keyState = new byte[256];
GetKeyboardState(keyState);
byte[] inBuffer = new byte[2];
if (ToAscii(MyKeyboardHookStruct.vkCode,
MyKeyboardHookStruct.scanCode,
keyState,
inBuffer,
MyKeyboardHookStruct.flags) == 1)
{
char key = (char)inBuffer[0];
if ((isDownCapslock ^ isDownShift) && Char.IsLetter(key))
key = Char.ToUpper(key);
KeyPressExEventArgs e = new KeyPressExEventArgs(key, MyKeyboardHookStruct.flags);
handlerKeyPress(this, e);
handled = handled || e.Handled;
}
}
// raise KeyUp
if (handlerKeyUp != null && ((int)wParam == WM_KEYUP || (int)wParam == WM_SYSKEYUP))
{
Keys keyData = (Keys)MyKeyboardHookStruct.vkCode;
KeyExEventArgs e = new KeyExEventArgs(keyData, MyKeyboardHookStruct.flags);
handlerKeyUp(this, e);
handled = handled || e.Handled;
}
}
//if event handled in application do not handoff to other listeners
if (handled)
return (IntPtr)1;
else
return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam);
}
