QMetaProperty(3qt)

1QMetaProperty(3qt)                                          QMetaProperty(3qt)
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NAME

6       QMetaProperty - Stores meta data about a property
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SYNOPSIS

9       #include <qmetaobject.h>
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11   Public Members
12       const char * type () const
13       const char * name () const
14       bool writable () const
15       bool isSetType () const
16       bool isEnumType () const
17       QStrList enumKeys () const
18       int keyToValue ( const char * key ) const
19       const char * valueToKey ( int value ) const
20       int keysToValue ( const QStrList & keys ) const
21       QStrList valueToKeys ( int value ) const
22       bool designable ( QObject * o = 0 ) const
23       bool scriptable ( QObject * o = 0 ) const
24       bool stored ( QObject * o = 0 ) const
25       bool reset ( QObject * o ) const
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DESCRIPTION

28       The QMetaProperty class stores meta data about a property.
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30       Property meta data includes type(), name(), and whether a property is
31       writable(), designable() and stored().
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33       The functions isSetType(), isEnumType() and enumKeys() provide further
34       information about a property's type. The conversion functions
35       keyToValue(), valueToKey(), keysToValue() and valueToKeys() allow
36       conversion between the integer representation of an enumeration or set
37       value and its literal representation.
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39       Actual property values are set and received through QObject's set and
40       get functions. See QObject::setProperty() and QObject::property() for
41       details.
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43       You receive meta property data through an object's meta object. See
44       QMetaObject::property() and QMetaObject::propertyNames() for details.
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46       See also Object Model.
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MEMBER FUNCTION DOCUMENTATION

bool QMetaProperty::designable ( QObject * o = 0 ) const

50       Returns TRUE if the property is designable for object o; otherwise
51       returns FALSE.
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53       If no object o is given, the function returns a static approximation.
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QStrList QMetaProperty::enumKeys () const

56       Returns the possible enumeration keys if this property is an
57       enumeration type (or a set type).
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59       See also isEnumType().
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bool QMetaProperty::isEnumType () const

62       Returns TRUE if the property's type is an enumeration value; otherwise
63       returns FALSE.
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65       See also isSetType() and enumKeys().
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bool QMetaProperty::isSetType () const

68       Returns TRUE if the property's type is an enumeration value that is
69       used as set, i.e. if the enumeration values can be OR-ed together;
70       otherwise returns FALSE. A set type is implicitly also an enum type.
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72       See also isEnumType() and enumKeys().
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int QMetaProperty::keyToValue ( const char * key ) const

75       Converts the enumeration key key to its integer value.
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77       For set types, use keysToValue().
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79       See also valueToKey(), isSetType(), and keysToValue().
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int QMetaProperty::keysToValue ( const QStrList & keys ) const

82       Converts the list of keys keys to their combined (OR-ed) integer value.
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84       See also isSetType() and valueToKey().
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const char * QMetaProperty::name () const

87       Returns the name of the property.
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bool QMetaProperty::reset ( QObject * o ) const

90       Tries to reset the property for object o with a reset method. On
91       success, returns TRUE; otherwise returns FALSE.
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93       Reset methods are optional, usually only a few properties support them.
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bool QMetaProperty::scriptable ( QObject * o = 0 ) const

96       Returns TRUE if the property is scriptable for object o; otherwise
97       returns FALSE.
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99       If no object o is given, the function returns a static approximation.
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bool QMetaProperty::stored ( QObject * o = 0 ) const

102       Returns TRUE if the property shall be stored for object o; otherwise
103       returns FALSE.
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105       If no object o is given, the function returns a static approximation.
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const char * QMetaProperty::type () const

108       Returns the type of the property.
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const char * QMetaProperty::valueToKey ( int value ) const

111       Converts the enumeration value value to its literal key.
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113       For set types, use valueToKeys().
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115       See also isSetType() and valueToKeys().
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QStrList QMetaProperty::valueToKeys ( int value ) const

118       Converts the set value value to a list of keys.
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120       See also isSetType() and valueToKey().
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bool QMetaProperty::writable () const

123       Returns TRUE if the property is writable; otherwise returns FALSE.
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COPYRIGHT

130       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
131       license file included in the distribution for a complete license
132       statement.
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AUTHOR

135       Generated automatically from the source code.
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BUGS

138       If you find a bug in Qt, please report it as described in
139       http://doc.trolltech.com/bughowto.html.  Good bug reports help us to
140       help you. Thank you.
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142       The definitive Qt documentation is provided in HTML format; it is
143       located at $QTDIR/doc/html and can be read using Qt Assistant or with a
144       web browser. This man page is provided as a convenience for those users
145       who prefer man pages, although this format is not officially supported
146       by Trolltech.
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148       If you find errors in this manual page, please report them to qt-
149       bugs@trolltech.com.  Please include the name of the manual page
150       (qmetaproperty.3qt) and the Qt version (3.3.8).
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154Trolltech AS                    2 February 2007             QMetaProperty(3qt)