CDC::ScaleWindowExt
Modifies the window extents relative to the current values.
virtual CSize ScaleWindowExt(
int xNum,
int xDenom,
int yNum,
int
yDenom );
Parameters
xNum
Specifies the amount by which to multiply the current x-extent.xDenom
Specifies the amount by which to divide the result of multiplying the current x-extent by the value of the xNum parameter.yNum
Specifies the amount by which to multiply the current y-extent.yDenom
Specifies the amount by which to divide the result of multiplying the current y-extent by the value of the yNum parameter.
Return Value
The previous window extents (in logical units) as a CSize object.
Remarks
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.
Requirements
Header: afxwin.h