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Editorial Team
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Asked: 2026-05-26T04:40:22+00:00

Look at this registry key: [HKEY_CURRENT_USER\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\OEM\VID_0079&PID_0011] OEMName=USB Gamepad OEMData=hex:00,00,00,10,0a,00,00,00 As you can see, there

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Look at this registry key:

[HKEY_CURRENT_USER\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\OEM\VID_0079&PID_0011]
"OEMName"="USB Gamepad "
"OEMData"=hex:00,00,00,10,0a,00,00,00

As you can see, there is key named OEMData and it has a binary (hex) value, it is related to joystick, I know that the numbers of joystick’s buttons is stored here, I mean for example if a joystick has 10 button it is written here, I want to know how can I find out it, I mean I want to know this joystick has how many buttons.

Really need it so any help is greatly appreciated

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1 Answer

  1. Editorial Team

    Don’t use the registry, use a documented API function. Like IDirectInputDevice8::GetCapabilities(). The returned DIDEVCAPS.dwButtons tells you how many buttons are available on the joystick.

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