3 keys at the same time not working

[AntoineTurmel]

For example I want to use:
Right + X + W (run and jump in a Mario game) but the program only seems to emulate 2 keys at the same time.
Any idea @PaintYourDragon ?

[PaintYourDragon]

@AntoineTurmel : the code handles distinct press and release events for every button, there's no inherent hardcoded 2 button or key limitation there. Possible there's a limitation in uinput or in the emulator. Connect USB keyboard, try the three button combination. Does it work there? If so, possible uinput problem. If not, possible emulator problem.

[Plaputta]

It only repeats the last key pressed, that may cause the issue.
When you hold Key A it'll repeat it. When you now also hold Key B it'll repeat only B. When you then release Key B, though still holding Key A, it'll repeat nothing anymore until you've released and re-pressed Key A.

This is a major drawback in games like qix...