Specifies the top position, in pixels. This value is relative to the upper-left corner of the screen. The value must be greater than or equal to 0.

指定顶部的位置，以像素为单位。这个值是相对于屏幕的左上角。该值必须大于或等于0。

youdao

The GetCursorPos function returns a TPoint record containing current mouse cursor position coordinates in pixels.

大体意思就是返回坐标系中鼠标的坐标值。

youdao