Esempio n. 1
0
 /// <summary>
 /// Raises TouchDown event.
 /// </summary>
 /// <param name="e">Provides event arguments.</param>
 protected virtual void OnTouchMove(TouchEventArgs e)
 {
     EventHandler<TouchEventArgs> handler = TouchMove;
     if (handler != null)
         handler(this, e);
 }
Esempio n. 2
0
        /// <summary>
        /// Decode the message and create a collection of event arguments
        /// </summary>
        private IEnumerable<TouchEventArgs> DecodeMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam, float dpiX, float dpiY)
        {
            // More than one touch input can be associated with a touch message
            int inputCount = WinApi.LoWord(DevComponents.DotNetBar.WinApi.ToInt(wParam)); // Number of touch inputs, actual per-contact messages

            WinApi.TOUCHINPUT[] inputs; // Array of TOUCHINPUT structures
            inputs = new WinApi.TOUCHINPUT[inputCount]; // Allocate the storage for the parameters of the per-contact messages
            try
            {
                // Unpack message parameters into the array of TOUCHINPUT structures, each representing a message for one single contact.
                if (!WinApi.GetTouchInputInfo(lParam, inputCount, inputs, Marshal.SizeOf(inputs[0])))
                {
                    // Touch info failed.
                    throw new Exception("Error calling GetTouchInputInfo API");
                }

                // For each contact, dispatch the message to the appropriate message handler.
                // For WM_TOUCHDOWN you can get down & move notifications and for WM_TOUCHUP you can get up & move notifications
                // WM_TOUCHMOVE will only contain move notifications and up & down notifications will never come in the same message
                for (int i = 0; i < inputCount; i++)
                {
                    TouchEventArgs touchEventArgs = new TouchEventArgs(this, dpiX, dpiY, ref inputs[i]);
                    yield return touchEventArgs;
                }
            }
            finally
            {
                //WinApi.CloseTouchInputHandle(lParam);
            }
        }
Esempio n. 3
0
 void TouchHandlerTouchDown(object sender, TouchEventArgs e)
 {
     PerformDownAction(e.Location);
     _LastTouchAction = DateTime.Now;
 }