Forwarding a sequence of scancodes via InputSimulator C#

Question

I'm having a challenge with scancodes, and how to convert these to virtual key codes & ASCII.

I'm using the Interception/Oblita library to retrieve all scancodes coming from a barcode scanner. Regular strokes keystrokes like "A" "!" and not an issue forwarding via the InputSimulator library (Link: https://www.nuget.org/packages/InputSimulator/)

The problems appear when trying to forward special characters like ¨ or ` using a Danish keyboard layout.

I receive these scancodes when inputting ¨ (Keydown)

56 82 79 77 72

Which should correspond to L-Alt + 0168 But when converting to Virtual keys, i get this result: L-ALT + INSERT + END + RIGHT + UP

I map the keys using MapVirtualKey from user32 dll, with the scancode and maptype = 1 (MAPVK_VSC_TO_VK)

How can I map them correctly so I get the Alt key combination? is it because I need to map using another p-invoke method?

Answer 1

After long periods with trials and errors, i seem to solve the problem. In the interception library there is a "Send" method, for forwarding the captured keystrokes - i don't know why i haven't used this method before, because it solves the conversion problem.