QAssistantClient - Means of using Qt Assistant as an application's help tool
QAssistantClient ( const QString & path, QObject * parent = 0, const char * name = 0 )
bool isOpen () const
void setArguments ( const QStringList & args )
virtual void openAssistant ()
virtual void closeAssistant ()
virtual void showPage ( const QString & page )
void assistantOpened ()
void assistantClosed ()
void error ( const QString & msg )
bool open - whether Qt Assistant is open (read only)
The QAssistantClient class provides a means of using Qt Assistant as an application's help
Using Qt Assistant is simple: Create a QAssistantClient instance, then call showPage() as
often as necessary to show your help pages. When you call showPage(), Qt Assistant will be
launched if it isn't already running.
The QAssistantClient instance can open (openAssistant()) or close (closeAssistant()) Qt
Assistant whenever required. If Qt Assistant is open, isOpen() returns TRUE.
One QAssistantClient instance interacts with one Qt Assistant instance, so every time you
call openAssistant(), showPage() or closeAssistant() they are applied to the particular Qt
Assistant instance associated with the QAssistantClient.
When you call openAssistant() the assistantOpened() signal is emitted. Similarly when
closeAssistant() is called, assistantClosed() is emitted. In either case, if an error
occurs, error() is emitted.
This class is not included in the Qt library itself. To use it you must link against
libqassistantclient.a (Unix) or qassistantclient.lib (Windows), which is built into
INSTALL/lib if you built the Qt tools (INSTALL is the directory where Qt is installed). If
you use qmake, then you can simply add the following line to your pro file:
LIBS += -lqassistantclient
See also "Adding Documentation to Qt Assistant" in the Qt Assistant manual.
MEMBER FUNCTION DOCUMENTATION
QAssistantClient::QAssistantClient ( const QString & path, QObject * parent = 0, const char *
name = 0 )
Constructs an assistant client object. The path specifies the path to the Qt Assistant
executable. If path is an empty string the system path (%PATH% or $PATH) is used.
The assistant client object is a child of parent and is called name.
Destroys the assistant client object and frees up all allocated resources.
void QAssistantClient::assistantClosed () [signal]
This signal is emitted when the connection to Qt Assistant is closed. This happens when
the user exits Qt Assistant, or when an error in the server or client occurs, or if
closeAssistant() is called.
void QAssistantClient::assistantOpened () [signal]
This signal is emitted when Qt Assistant is open and the client-server communication is
void QAssistantClient::closeAssistant () [virtual slot]
Use this function to close Qt Assistant.
See also assistantClosed().
void QAssistantClient::error ( const QString & msg ) [signal]
This signal is emitted if Qt Assistant cannot be started or if an error occurs during the
initialization of the connection between Qt Assistant and the calling application. The msg
provides an explanation of the error.
bool QAssistantClient::isOpen () const
Returns TRUE if Qt Assistant is open; otherwise returns FALSE. See the "open" property for
void QAssistantClient::openAssistant () [virtual slot]
This function opens Qt Assistant and sets up the client-server communiction between the
application and Qt Assistant. If it is already open, this function does nothing. If an
error occurs, error() is emitted.
See also assistantOpened().
void QAssistantClient::setArguments ( const QStringList & args )
Sets the command line arguments used when Qt Assistant is started to args.
void QAssistantClient::showPage ( const QString & page ) [virtual slot]
Call this function to make Qt Assistant show a particular page. The page is a filename
(e.g. myhelpfile.html). See "Adding Documentation to Qt Assistant" in the Qt Assistant
manual for further information.
If Qt Assistant hasn't been opened yet, this function will do nothing. You can use
isOpen() to determine whether Qt Assistant is up and running, or you can connect to the
See also open and assistantOpened().
This property holds whether Qt Assistant is open.
Get this property's value with isOpen().
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included in the distribution for a complete license statement.
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Trolltech AS 2 February 2007 QAssistantClient(3qt)