CRECT是一个类，封装了 RECT 结构体的操作typedef struct tagRECT { LONG left; LONG top; LONG right; LONG bottom; } RECT;
ConstructionCRect Constructs a CRect object. OperationsBottomRight Returns the bottom-right point of CRect.CenterPoint Returns the centerpoint of CRect.CopyRect Copies the dimensions of a source rectangle to CRect.DeflateRect Decreases the width and height of CRect.EqualRect Determines whether CRect is equal to the given rectangle.Height Calculates the height of CRect.InflateRect Increases the width and height of CRect.IntersectRect Sets CRect equal to the intersection of two rectangles.IsRectEmpty Determines whether CRect is empty. CRect is empty if the width and/or height are 0.IsRectNull Determines whether the top, bottom, left, and right member variables are all equal to 0.MoveToX Moves CRect to the specified x-coordinate.MoveToXY Moves CRect to the specified x- and y-coordinates.MoveToY Moves CRect to the specified y-coordinate.NormalizeRect Standardizes the height and width of CRect.OffsetRect Moves CRect by the specified offsets.PtInRect Determines whether the specified point lies within CRect.SetRect Sets the dimensions of CRect.SetRectEmpty Sets CRect to an empty rectangle (all coordinates equal to 0).Size Calculates the size of CRect.SubtractRect Subtracts one rectangle from another.TopLeft Returns the top-left point of CRect.UnionRect Sets CRect equal to the union of two rectangles.Width Calculates the width of CRect. Operatorsoperator != Determines whether CRect is not equal to a rectangle.operator & Creates the intersection of CRect and a rectangle and returns the resulting CRect.operator &= Sets CRect equal to the intersection of CRect and a rectangle.operator – Subtracts the given offsets from CRect or deflates CRect and returns the resulting CRect.operator | Creates the union of CRect and a rectangle and returns the resulting CRect.operator |= Sets CRect equal to the union of CRect and a rectangle.operator + Adds the given offsets to CRect or inflates CRect and returns the resulting CRect.operator += Adds the specified offsets to CRect or inflates CRect.operator = Copies the dimensions of a rectangle to CRect.operator –= Subtracts the specified offsets from CRect or deflates CRect.operator == Determines whether CRect is equal to a rectangle.operator LPCRECT Converts a CRect to an LPCRECT.operator LPRECT Converts a CRect to an LPRECT.
LONG left;
LONG top;
LONG right;
LONG bottom;
} RECT;
Constructs a CRect object.
OperationsBottomRight
Returns the bottom-right point of CRect.CenterPoint
Returns the centerpoint of CRect.CopyRect
Copies the dimensions of a source rectangle to CRect.DeflateRect
Decreases the width and height of CRect.EqualRect
Determines whether CRect is equal to the given rectangle.Height
Calculates the height of CRect.InflateRect
Increases the width and height of CRect.IntersectRect
Sets CRect equal to the intersection of two rectangles.IsRectEmpty
Determines whether CRect is empty. CRect is empty if the width and/or height are 0.IsRectNull
Determines whether the top, bottom, left, and right member variables are all equal to 0.MoveToX
Moves CRect to the specified x-coordinate.MoveToXY
Moves CRect to the specified x- and y-coordinates.MoveToY
Moves CRect to the specified y-coordinate.NormalizeRect
Standardizes the height and width of CRect.OffsetRect
Moves CRect by the specified offsets.PtInRect
Determines whether the specified point lies within CRect.SetRect
Sets the dimensions of CRect.SetRectEmpty
Sets CRect to an empty rectangle (all coordinates equal to 0).Size
Calculates the size of CRect.SubtractRect
Subtracts one rectangle from another.TopLeft
Returns the top-left point of CRect.UnionRect
Sets CRect equal to the union of two rectangles.Width
Calculates the width of CRect.
Operatorsoperator !=
Determines whether CRect is not equal to a rectangle.operator &
Creates the intersection of CRect and a rectangle and returns the resulting CRect.operator &=
Sets CRect equal to the intersection of CRect and a rectangle.operator –
Subtracts the given offsets from CRect or deflates CRect and returns the resulting CRect.operator |
Creates the union of CRect and a rectangle and returns the resulting CRect.operator |=
Sets CRect equal to the union of CRect and a rectangle.operator +
Adds the given offsets to CRect or inflates CRect and returns the resulting CRect.operator +=
Adds the specified offsets to CRect or inflates CRect.operator =
Copies the dimensions of a rectangle to CRect.operator –=
Subtracts the specified offsets from CRect or deflates CRect.operator ==
Determines whether CRect is equal to a rectangle.operator LPCRECT
Converts a CRect to an LPCRECT.operator LPRECT
Converts a CRect to an LPRECT.