protected IntPtr CoreHookProc(int code, IntPtr wParam, IntPtr lParam)
{
if (code < 0)
{
return(CallNextHookEx(_hookID, (HC)code, wParam, lParam));
}
if (code == (int)HC.ACTION)
{
// Let clients determine what to do
var handler = HookEventHandler;
HookEventArgs e = new HookEventArgs();
e.HookCode = code;
e.wParam = wParam;
e.lParam = lParam;
if (handler != null)
{
bool handled = handler.Invoke(e);
if (handled)
{
return((IntPtr)1); // Handled.
}
}
}
// Yield to the next hook in the chain
return(CallNextHookEx(_hookID, (HC)code, wParam, lParam));
}
protected virtual bool OnKeyboardEvent(HookEventArgs args)
{
if (args == null)
{
return(false);
}
WM wParam = (WM)args.wParam.ToInt32();
var hookInfo = Marshal.PtrToStructure <KBDLLHOOKSTRUCT>(args.lParam);
var key = (Keys)hookInfo.vkCode;
bool alt = IsKeyPressed(Keys.Menu);
bool control = IsKeyPressed(Keys.ControlKey);
return(_keyboadHandler.HandleKey(_handler, new KeyboardParam(wParam == WM.KEYUP, alt, control, key)));
}
protected virtual bool OnKeyboardEvent(HookEventArgs args)
{
if (args == null)
{
return(false);
}
WM wParam = (WM)args.wParam.ToInt32();
var hookInfo = Marshal.PtrToStructure <KBDLLHOOKSTRUCT>(args.lParam);
var key = (Keys)hookInfo.vkCode;
bool alt = IsKeyPressed(Keys.Menu);
bool control = IsKeyPressed(Keys.ControlKey);
if (!AllowKeyboardInput(alt, control, (int)key))
{
return(true);
}
return(false);
}
protected virtual bool OnMouseEvent(HookEventArgs args)
{
if (args == null)
{
return(false);
}
WM wParam = (WM)args.wParam.ToInt32();
switch (wParam)
{
case WM.MOUSEMOVE:
if (_dragWindowInfo != null && _dragWindowInfo.DragInitiated)
{
POINT cursorPos = new POINT();
if (GetCurrentCursorLocation(args.lParam, ref cursorPos))
{
var ptDelta = new POINT(cursorPos.x - _dragWindowInfo.DragPoint.x, cursorPos.y - _dragWindowInfo.DragPoint.y);
var newLocation = new POINT(_dragWindowInfo.DragWindowLocation.x + ptDelta.x, _dragWindowInfo.DragWindowLocation.y + ptDelta.y);
OnMouseMove(newLocation.x, newLocation.y);
return(false);
}
}
break;
// button up messages
case WM.LBUTTONUP:
if (_dragWindowInfo != null && _dragWindowInfo.DragInitiated)
{
OnLeftButtonUp();
}
break;
}
return(false);
}
