| [buttons](./puppeteer.protocol.input.dispatchmouseeventrequest.buttons.md) | [integer](./puppeteer.protocol.integer.md) | A number indicating which buttons are pressed on the mouse when a mouse event is triggered. Left=1, Right=2, Middle=4, Back=8, Forward=16, None=0. |
| [clickCount](./puppeteer.protocol.input.dispatchmouseeventrequest.clickcount.md) | [integer](./puppeteer.protocol.integer.md) | Number of times the mouse button was clicked (default: 0). |
| [deltaX](./puppeteer.protocol.input.dispatchmouseeventrequest.deltax.md) | number | X delta in CSS pixels for mouse wheel event (default: 0). |
| [deltaY](./puppeteer.protocol.input.dispatchmouseeventrequest.deltay.md) | number | Y delta in CSS pixels for mouse wheel event (default: 0). |
| [modifiers](./puppeteer.protocol.input.dispatchmouseeventrequest.modifiers.md) | [integer](./puppeteer.protocol.integer.md) | Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8 (default: 0). |
| [timestamp](./puppeteer.protocol.input.dispatchmouseeventrequest.timestamp.md) | [TimeSinceEpoch](./puppeteer.protocol.input.timesinceepoch.md) | Time at which the event occurred. |
| [x](./puppeteer.protocol.input.dispatchmouseeventrequest.x.md) | number | X coordinate of the event relative to the main frame's viewport in CSS pixels. |
| [y](./puppeteer.protocol.input.dispatchmouseeventrequest.y.md) | number | Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to the top of the viewport and Y increases as it proceeds towards the bottom of the viewport. |