Qt 4.6: QMargins Class Reference

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# QMargins Class Reference
[QtCore module]

The QMargins class defines the four margins of a rectangle. More...

     #include <QMargins>

- List of all members, including inherited members

## Public Functions

| QMargins ()
| QMargins ( int left, int top, int right, int bottom )
int | bottom () const
bool | isNull () const
int | left () const
int | right () const
void | setBottom ( int bottom )
void | setLeft ( int left )
void | setRight ( int right )
void | setTop ( int Top )
int | top () const

## Related Non-Members

void | qDrawBorderPixmap ( QPainter * painter, const QRect & target, const QMargins & margins, const QPixmap & pixmap )
bool | operator!= ( const QMargins & m1, const QMargins & m2 )
bool | operator== ( const QMargins & m1, const QMargins & m2 )

## Detailed Description

The QMargins class defines the four margins of a rectangle.

QMargin defines a set of four margins; left, top, right and bottom, that describe the size of the borders surrounding a rectangle.

The isNull() function returns true only if all margins are set to zero.

QMargin objects can be streamed as well as compared.

## Member Function Documentation

### QMargins::QMargins ()

Constructs a margins object with all margins set to 0.

See also isNull().

### QMargins::QMargins ( int left, int top, int right, int bottom )

Constructs margins with the given left, top, right, bottom

See also setLeft(), setRight(), setTop(), and setBottom().

### int QMargins::bottom () const

Returns the bottom margin.

See also setBottom().

### bool QMargins::isNull () const

Returns true if all margins are is 0; otherwise returns false.

### int QMargins::left () const

Returns the left margin.

See also setLeft().

### int QMargins::right () const

Returns the right margin.

See also setRight().

### void QMargins::setBottom ( int bottom )

Sets the bottom margin to bottom.

See also bottom().

### void QMargins::setLeft ( int left )

Sets the left margin to left.

See also left().

### void QMargins::setRight ( int right )

Sets the right margin to right.

See also right().

### void QMargins::setTop ( int Top )

Sets the Top margin to Top.

See also top().

### int QMargins::top () const

Returns the top margin.

See also setTop().

## Related Non-Members

### void qDrawBorderPixmap ( QPainter * painter, const QRect & target, const QMargins & margins, const QPixmap & pixmap )

Draws the given pixmap into the given target rectangle, using the given painter. The pixmap will be split into nine segments and drawn according to the margins structure.

This function was introduced in Qt 4.6.

### bool operator!= ( const QMargins & m1, const QMargins & m2 )

Returns true if m1 and m2 are different; otherwise returns false.

### bool operator== ( const QMargins & m1, const QMargins & m2 )

Returns true if m1 and m2 are equal; otherwise returns false.