Qt Gamepad documentation
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wrote on 24 Nov 2016, 20:28 last edited by
Hello.
I want to develop an application that would handle gamepad events. Many gamepads will be connected to the computer, and the program should know what button of what gamepad have pressed.
I haven't found how to work with many gamepads with QGamepad.
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Hi and welcome to devnet,
Looks like you are searching for the QGamepadManager class which looks like it has its documentation missing. However a quick look at the module examples should get you going.
Hope it helps.
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wrote on 25 Nov 2016, 21:49 last edited by
And if I want to connect all signals button...Changed to one slot, should I connect them one by one? Or I can get list of buttons and connect it to slot in a loop?
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You can use QMetaType inspection to get all signals and then filter them by name before creating the connections.
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wrote on 25 Nov 2016, 23:56 last edited by
And I tried examples, and Qt doesn't see some of my gamepad keys. I use Genius g-08-xu gamepad. It works perfectly in another software, but Qt doesn't see buttons 3 and 6.
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wrote on 26 Nov 2016, 00:19 last edited by
And I tried this example: http://www.ics.com/blog/whats-new-qt-570-qt-gamepad but it says that I have only one gamepad, but I have connected two gamepads. If I press any button in one of them, it prints a message that button was pressed, but shows the same device ID. And 3 and 6 buttons on Genius g-08-xu don't work with this example too.
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What OS are you on ?
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wrote on 26 Nov 2016, 23:04 last edited by
Linux. I tried on Windows (minGW) too, but it doesnt't work at all. Examples don't see any gamepads.
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Did you check that the plugin get correctly loaded ?
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wrote on 27 Nov 2016, 01:45 last edited by
How cat I check it?
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Add QT_DEBUG_PLUGINS to the environment variables in the Run part of the Project panel and set it to 1.
You'll have more information on the debug output.
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wrote on 27 Nov 2016, 17:29 last edited by TimurE
QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads" ... QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll" Found metadata in lib C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll, metadata= { "IID": "com.bsquask.Qt.Gamepad.QtGamepadBackendFactoryInterface.5.5", "MetaData": { "Keys": [ "xinput" ] }, "className": "QXInputGamepadBackendPlugin", "debug": false, "version": 329472 } Got keys from plugin meta data ("xinput") QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll" Found metadata in lib C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll, metadata= { "IID": "com.bsquask.Qt.Gamepad.QtGamepadBackendFactoryInterface.5.5", "MetaData": { "Keys": [ "xinput" ] }, "className": "QXInputGamepadBackendPlugin", "debug": true, "version": 329472 } "The plugin 'C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" not a plugin QFactoryLoader::QFactoryLoader() checking directory path "C:/build-gamepadexample-Desktop_Qt_5_7_0_MinGW_32bit-Release/release/gamepads" ... loaded library "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll" loaded library "xinput1_4.dll" loaded library "xinput1_3.dll"
Windows 7 x86 (32 bit)
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wrote on 27 Nov 2016, 22:06 last edited by
I tried to use msvc 2015 instead of MinGW, but I got the same problem.
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wrote on 27 Nov 2016, 22:40 last edited by
Hi, if you're compiling in Debug mode, try instead to compile in Release mode.
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wrote on 28 Nov 2016, 03:05 last edited by
Same problem:
Starting C:\build-gamepadexample-Desktop_Qt_5_7_0_MinGW_32bit-Release\release\gamepadexample.exe... QGamePadManager Demo QFactoryLoader::QFactoryLoader() checking directory path "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads" ... QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll" Found metadata in lib C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll, metadata= { "IID": "com.bsquask.Qt.Gamepad.QtGamepadBackendFactoryInterface.5.5", "MetaData": { "Keys": [ "xinput" ] }, "className": "QXInputGamepadBackendPlugin", "debug": false, "version": 329472 } Got keys from plugin meta data ("xinput") QFactoryLoader::QFactoryLoader() looking at "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll" Found metadata in lib C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll, metadata= { "IID": "com.bsquask.Qt.Gamepad.QtGamepadBackendFactoryInterface.5.5", "MetaData": { "Keys": [ "xinput" ] }, "className": "QXInputGamepadBackendPlugin", "debug": true, "version": 329472 } "The plugin 'C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepadd.dll' uses incompatible Qt library. (Cannot mix debug and release libraries.)" not a plugin QFactoryLoader::QFactoryLoader() checking directory path "C:/build-gamepadexample-Desktop_Qt_5_7_0_MinGW_32bit-Release/release/gamepads" ... loaded library "C:/Qt/Qt5.7.0/5.7/mingw53_32/plugins/gamepads/xinputgamepad.dll" loaded library "xinput1_4.dll" loaded library "xinput1_3.dll" Number of gamepads: 0
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wrote on 28 Nov 2016, 03:25 last edited by
Hmm, I checked and it seems Qt Gamepad does not support all the different gamepads available on WIndows :-( I.e. the plugin loads fine but no gamepads are detected, more discussion here
Also you can try emulating a Microsoft device like an Xbox360-controller, for example I can use my Playstation4 controller by installing DS4Windows
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wrote on 28 Nov 2016, 05:09 last edited by
I'll try it later.
But why Qt can support only part of gamepads? My gamepads are very old and work both in Windows and Linux without additional drivers.
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wrote on 29 Nov 2016, 23:48 last edited by
DS4Windows doesn't see my gamepads. But Windows Control panel sees and shows pressed buttons.
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wrote on 30 Nov 2016, 17:09 last edited by
Because your gamepad is 12 years old (or more) I think it doesn't support the standard DirectX interface, only Windows control panel, that's why Qt is blind to it.
Also, when playing a 64-bit (only) game like BattleField1, I think such game will exhibit the same problem as Qt, i.e. not see your gamepad :-( -
wrote on 6 Mar 2017, 04:50 last edited by
@TimurE
I work at Win10 64 bits and QT5.7.0 ,msvc14。It canwork at this code.
Gamepad::Gamepad(QObject *parent) : QObject(parent)
, m_gamepad(0)
{
m_gamepad = new QGamepad(0,this);//or just m_gamepad = new QGamepad; is ok//
connect(m_gamepad,&QGamepad::connectedChanged,this,&MMGamepad::connectedChangedEvent);
qDebug() << "A new gamepad:"<<m_gamepad->isConnected();// when start is false
}
void Gamepad::connectedChangedEvent(bool value)
{
if(value)
{
qDebug() << "Gamepad:: decive is connect!" ;
}
else
{
qDebug() << "Gamepad:: decive is disconnect!" ;
}
}
and you can get any signal after"Gamepad:: decive is connect".