CRect::operator -=

Use this operator to move a CRect object by the specified offsets. The parameter's x and y (or cx and cy) values are subtracted from CRect.

Use the third overloaded operator to deflate a CRect object by the number of units specified in each member of the parameter.

void operator –=( POINT point );

void operator –=( SIZE size );

void operator –=( LPCRECT lpRect );