The function %HI_SetSplitterRelPos sets the position of the splitter object's slider according to the given relative position (Control function).

The %HI_GetSplitterRelPos function finds the relative position of the splitter object's slider.

If the value of the %HI_SetSplitterRelPos function is outside the required interval, the requested operation will not be performed. 

The %HI_SetSplitterRelPos function has no return value.

The %HI_GetSplitterRelPos function returns an invalid value if the dimension (depending on the direction of the slider movement) of the splitter object is 0.