Bug in wxJoystickEvent?

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zoxks
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Bug in wxJoystickEvent?

Post by zoxks »

I have two identical joysticks (both Thrustmaster T.16000M), and I'm trying to listen for events for both of them. I'm capturing the events like such:

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void JoystickController::OnJoystickEvent(wxJoystickEvent& event) {

    //Get id of changed stick and index it from 0
    int stickId = event.GetJoystick();
    cout << "stickId:  " << stickId << "\n";
    cout << "ONE: " << wxJOYSTICK1 << "\n";
    cout << "TWO: " << wxJOYSTICK2 << "\n";
}
When I get the stick ID, it comes out as either 1, or 2 (pressing a button on the left and right sticks):

Code: Select all

stickId:  1
ONE: 0
TWO: 1
stickId:  2
ONE: 0
TWO: 1
However the documentation here states that GetJoystick will return:
Returns the identifier of the joystick generating the event - one of wxJOYSTICK1 and wxJOYSTICK2.
On a separate computer, the value of GetJoystick is indeed 0, and 1. What is causing this?
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doublemax
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Re: Bug in wxJoystickEvent?

Post by doublemax »

Platform, wxWidgets version?

What does wxJoystick::GetNumberJoysticks() return?
Use the source, Luke!
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zoxks
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Re: Bug in wxJoystickEvent?

Post by zoxks »

Sorry :oops: . Windows 10, WX 3.1.5
wxJoystick::GetNumberJoysticks() returns 2
PB
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Re: Bug in wxJoystickEvent?

Post by PB »

I have never used wxJoystickEvent nor am I familiar with handling game controller input.

Be that as it may, to me it seems that the documentation is incorrect.

Firstly, that returning one of the two wxJOYSTICKn values would mean that a system can have only at most two game controllers attached (I suppose that includes gamepads and similar): Is that true?

Secondly, looking at the source code, AFAICT the joystick id (m_joystick) on MSW is assigned like this, which means it can be an arbitrary number.
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Re: Bug in wxJoystickEvent?

Post by doublemax »

Can you trace through wxJoystick::GetNumberJoysticks() with a debugger? I suspect that for some reason your system has 3 joystick devices, with the first being invalid, so that number is skipped.
Use the source, Luke!
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