Rectangle (Type of variable)

ONLINE HELP
WINDEV, WEBDEV AND WINDEV MOBILE

Version:

WINDEV

WEBDEV

WINDEV Mobile

Others

Rectangle (Type of variable)

In french: Rectangle

A Rectangle variable is a structured type that is used to represent a rectangle (X, Y, Width, Height) in 2 dimensions.

Versions 24 and later

This type of variable is now available in Android Widget mode.

This type of variable is now available for Android applications.

This type of variable is now available for Java applications.

New in version 24

This type of variable is now available in Android Widget mode.

This type of variable is now available for Android applications.

This type of variable is now available for Java applications.

This type of variable is now available in Android Widget mode.

This type of variable is now available for Android applications.

This type of variable is now available for Java applications.

Example

MyRectangle is Rectangle
MyRectangle.X = 280
MyRectangle.Y = 54
MyRectangle.Width = 50
MyRectangle.Height = 150

Syntax

Declaring and initializing a rectangle Hide the details

<Rectangle Name> is Rectangle

<Rectangle Name>:

Name of the Rectangle variable to declare.

Remarks

WLanguage properties that can be used with the Rectangle type

The initial value of a rectangle is set to (0,0,0,0).

The following properties can be used to handle a Rectangle variable:

Property name	Effect

Height	Height of the rectangle. This coordinate corresponds to a signed 4-byte integer.
Width	Width of the rectangle. This coordinate corresponds to a signed 4-byte integer.
X	X coordinate of the top left point. This coordinate corresponds to a signed 4-byte integer.
Y	Y coordinate of the top left point. This coordinate corresponds to a signed 4-byte integer.

Assigning a Rectangle variable

A Rectangle variable can be assigned with:

another Rectangle variable.
For example:

MyRectangle is Rectangle
MyRectangle.X = 280
MyRectangle.Y = 54
MyRectangle.Width = 50
MyRectangle.Height = 150
MyRectangle1 is Rectangle = MyRectangle
an array of four values that can be converted into integer.
For example:

MyRectangle is Rectangle
MyRectangle = [280, 54, 50, 150]
two Point variables (corresponding respectively to the top left corner and to the bottom right corner of the rectangle).
For example:

MyRectangle is Rectangle
MyRectangle = [[280, 54], [330, 204]]

Assigning an array of Rectangles

An array of rectangles can be assigned with:

an array of values containing rectangles.
For example:

ArrayOfRectangles is array of Rectangles
ArrayOfRectangles = [MyRectangle1, MyRectangle2]
an array of four values that can be converted into integer.
For example:

ArrayOfRectangles is array of Rectangles
ArrayOfRectangles = [[1,2,3,4], [5,6,7,8]

Comparison and serialization

Comparison: The comparison operators = and <> are available.
Serialization: The binary, XML and JSON serializations are available.
Caution: During an XML serialization, the xmlAttribute constant cannot be used on a Rectangle class member or on a Rectangle structure member.

Notes

A Rectangle variable can be stored in a variant.
A Rectangle variable is never null:
- The "RectangleVariable = NULL" condition always returns False.
- The "RectangleVariable <> NULL" condition always returns True.
You cannot reference a Rectangle variable.
The "RectangleVariable2 <- RectangleVariable1" syntax triggers an error.
You cannot force the copy of a Rectangle variable.
The "RectangleVariable2 <= RectangleVariable1" syntax triggers an error.
You have the ability to add a Point variable and a Rectangle variable. This operation is used to perform a relocation of the rectangle.
You have the ability to subtract a Point variable to a Rectangle variable. This operation is used to perform a relocation of the rectangle.
The Rectangle variables can be passed to the system APIs.