如何获得鼠标滚轮的垂直滚动速率

Question

I'm currently developping a custom control, and, to implement vertical scrolling, I want to be able to fetch the configured vertical scroll rate (described here ). I would use this setting to move the control by [X] number of lines.

Answer 1

You can get it from SystemParametersInfo function with SPI_GETWHEELSCROLLLINES .

Retrieves the number of lines to scroll when the vertical mouse wheel is moved. The pvParam parameter must point to a UINT variable that receives the number of lines. The default value is 3.