Modifies the window extents relative to the current values.
Specifies the amount by which to multiply the current x-extent.
Specifies the amount by which to divide the result of multiplying the current x-extent by the value of the xNum parameter.
Specifies the amount by which to multiply the current y-extent.
Specifies the amount by which to divide the result of multiplying the current y-extent by the value of the yNum parameter.
The previous window extents (in logical units) as a CSize object.
The formulas are written as follows:
xNewWE = ( xOldWE * xNum ) / xDenom
yNewWE = ( yOldWE * yNum ) / yDenom
The new window extents are calculated by multiplying the current extents by the given numerator and then dividing by the given denominator.