CRect Class¶

Overview
Quick Reference
Constructors
Methods

Overview¶

Note

The CRect class handles rectangles

The structure used for this class is CRect

Quick Reference¶

Quick Ref

void CRect::CRect(RECT* lpSrcRect)

int CRect::PtInRect(POINT point)

int CRect::IntersectRect(RECT* lpRect1, RECT* lpRect2)

int CRect::IsRectEmpty()

void CRect::DeflateRect(int l, int t, int r, int b)

void CRect::InflateRect(int l, int t, int r, int b)

void CRect::NormalizeRect()

Constructors¶

Name	Description
CRect::CRect	Constructs a `CRect` object

CRect::CRect¶

Constructs a CRect object

void CRect::CRect(RECT* lpSrcRect);

Parameters

RECT* lpSrcRect -

Remarks

Constructs a CRect object

Methods¶

Name	Description
CRect::PtInRect	Determines whether the specified point lies within the rectangle
CRect::IntersectRect	Intersects two source rectangles into the rectangle
CRect::IsRectEmpty	Determines whether the rectangle is empty
CRect::DeflateRect	Decreases the width and height of the rectangle
CRect::InflateRect	Increases the width and height of the rectangle
CRect::NormalizeRect

CRect::PtInRect¶

Determines whether the specified point lies within the rectangle

int CRect::PtInRect(POINT point);

Parameters

POINT point - x and y coordinates used to determine if within rectangle

Return Value

Returns an int value representing 1 true, or 0 false

Remarks

CRect::IntersectRect¶

Calculates the intersection of two source rectangles and places the coordinates of the intersection source rectangles into the rectangle

int CRect::IntersectRect(
   RECT* lpRect1,
   RECT* lpRect2);

Parameters

RECT* lpRect1 - pointer to source rectangle 1
RECT* lpRect2 - pointer to source rectangle 2

Return Value

Returns an int value representing 1 true, or 0 false

Remarks

CRect::IsRectEmpty¶

Determines whether the rectangle is empty

int CRect::IsRectEmpty();

Return Value

Returns an int value representing 1 true, or 0 false

Remarks

CRect::DeflateRect¶

Decreases the width and height of the rectangle

void CRect::DeflateRect(
   int l,
   int t,
   int r,
   int b);

Parameters

int l - amount to decrease left side of rectangle
int t - amount to decrease top side of rectangle
int r - amount to decrease right side of rectangle
int b - amount to decrease bottom side of rectangle

Remarks

The rectangle is adjusted by the amounts specified

CRect::InflateRect¶

Increases the width and height of the rectangle

void CRect::InflateRect(
   int l,
   int t,
   int r,
   int b);

Parameters

int l - amount to increase left side of rectangle
int t - amount to increase top side of rectangle
int r - amount to increase right side of rectangle
int b - amount to increase bottom side of rectangle

Remarks

The rectangle is adjusted by the amounts specified

CRect::NormalizeRect¶

void CRect::NormalizeRect();

Remarks