HKEY_CURRENT_USER\Software\WebpImageViewer\Webp Image Viewer\Settings
DWORD: JoyID
The Joystick ID to use, can be 1 for Joystick 1 or 2 for Joystick 2. Set to 0 to disable joystick support. The default value is 1.
DWORD: JoyButton1 - JoyButton16
The 16 buttons on the joystick/gamepad can be mapped to any one of the following decimal codes:
| 4001 | View Next Image |
| 4002 | View Previous Image |
| 4003 | View Next Image (right-aligned) |
| 4004 | View Previous Image (right-aligned) |
| 4022 | Toggle Fullscreen |
| 4031 | Zoom In |
| 4032 | Zoom Out |
| 4040 | Escape out of the current view |
| 5000 | Null operation (use to disable a default button) |
Default button assignments:
| JoyButton1 | View Previous Image |
| JoyButton2 | View Next Image |
| JoyButton3 | Zoom Out |
| JoyButton4 | Zoom In |
| JoyButton7 | View Previous Image (right-aligned) |
| JoyButton8 | View Next Image (right-aligned) |
| JoyButton9 | Escape out of the current view |
| JoyButton10 | Toggle Fullscreen |