I have used EZdrummer 2 on a Windows 10 touchscreen device (from Wacom) and it registers a click when I release my finger from the screen, so software will get the press event when the finger is released. I am not sure we can do anything about it, since it is the OS and hardware that dictates this. I need to investigate further in this matter.
Can you try the same on your touchscreen? Simply try to click on an icon on the desktop - is it selected when you release your finger from the screen?