Is there a way to detect a gamepad?

Development Programming & Scripting C++
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4

Hi,

Unfortunately, there is no such function. But code you need lay in XInputInterface.cpp

/** Controller states */
FControllerState ControllerStates[MAX_NUM_XINPUT_CONTROLLERS];

This variable is private and XInputInterface has no function to get it. I think the simple way to access to that variable it is add interface that check gamepad.

GenericApplication.h

virtual bool IsGamepadConnected() { return false; }

WindowsApplication.h

virtual bool IsGamepadConnected() override;

WindowsApplication.cpp

bool FWindowsApplication::IsGamepadConnected()
{
	return XInput->IsGamepadConnected();
}

XInputInterface.h

bool IsGamepadConnected();

XInputInterface.cpp

bool XInputInterface::IsGamepadConnected()
{
	for (int32 ControllerIndex = 0; ControllerIndex < MAX_NUM_XINPUT_CONTROLLERS; ++ControllerIndex)
	{
		FControllerState& ControllerState = ControllerStates[ControllerIndex];
		if (ControllerState.bIsConnected)
			return true;
	}

	return false;
}

And call that where you need

TSharedPtr<GenericApplication> GenericApplication =  SlateApplication::Get().GetPlatformApplication();
GenericApplication->IsGamepadConnected();

In addition, I think it is not very good idea to do that, because we add very specific functions to general functionality. But I hope it will be a start point for solving your problem.

Cheers