This class is defined in the \fBQt Netscape Extension\fR, which can be found in the \fCqt/extensions\fR directory. It is not included in the main TQt API.
The QNPlugin class provides the main factory for plugin objects.
.PP
This class is the heart of the plugin. One instance of this object is created when the plugin is \fIfirst\fR needed, by calling QNPlugin::create(), which must be implemented in your plugin code to return some derived class of QNPlugin. The one QNPlugin object creates all QNPInstance instances for a web browser running in a single process.
Additionally, if TQt is linked to the plugin as a dynamic library, only one instance of QApplication will exist \fIacross all plugins that have been made with Qt\fR. So, your plugin should tread lightly on global settings. Do not, for example, use QApplication::setFont() - that will change the font in every widget of every Qt-based plugin currently loaded!
Creates a QNPlugin. This may only be used by the constructor of the class, derived from QNPlugin, that is returned by your plugin's implementation of the QNPlugin::create() function.
.SH "QNPlugin::~QNPlugin ()\fC [virtual]\fR"
Destroys the QNPlugin. This is called by the plugin binding code just before the plugin is about to be unloaded from memory. If newWindow() has been called, a QApplication will still exist at this time, but will be deleted shortly after, just before the plugin is deleted.
Override this function to return the MIME description of the data formats supported by your plugin. The format of this string is shown by the following example:
Returns a pointer to the plain-text name of the plugin.
.SH "void QNPlugin::getVersionInfo ( int & plugin_major, int & plugin_minor, int & browser_major, int & browser_minor )"
Populates \fI*\fR\fIplugin_major\fR and \fI*\fR\fIplugin_minor\fR with the version of the plugin API and populates \fI*\fR\fIbrowser_major\fR and \fI*\fR\fIbrowser_minor\fR with the version of the web browser.
