Function imgui_sys::igDragFloat

pub unsafe extern fn igDragFloat(label: *const c_char,
                                 v: *mut c_float,
                                 v_speed: c_float,
                                 v_min: c_float,
                                 v_max: c_float,
                                 display_format: *const c_char,
                                 power: c_float)
                                 -> bool