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mention that usually wxGetUserId() should be used to construct the lock name

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16233 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2002-07-21 12:38:34 +00:00
parent a4fd44528a
commit 8d0a0c3f5a
1 changed files with 11 additions and 4 deletions
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15
docs/latex/wx/snglinst.tex
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@ -24,7 +24,8 @@ example:
\begin{verbatim}
bool MyApp::OnInit()
{
m_checker = new wxSingleInstanceChecker(GetAppName());
const wxString name = wxString::Format("MyApp-%s", wxGetUserId().c_str());
m_checker = new wxSingleInstanceChecker(name);
if ( m_checker->IsAnotherRunning() )
{
wxLogError(_("Another program instance is already running, aborting."));
@ -45,8 +46,13 @@ int MyApp::OnExit()
}
\end{verbatim}
This class is implemented for Win32 and Unix platforms supporting {\tt fcntl()}
system call only.
Note using \helpref{wxGetUserId()}{wxgetuserid} to construct the name: this
allows different user to run the application concurrently which is usually the
intended goal. If you don't use the user name in the wxSingleInstanceChecker
name, only one user would be able to run the application at a time.
This class is implemented for Win32 and Unix platforms (supporting {\tt fcntl()}
system call, but almost all of modern Unix systems do) only.
\wxheading{Derived from}
@ -84,7 +90,8 @@ had been used is an error.
\docparam{name}{must be given and be as unique as possible. It is used as the
mutex name under Win32 and the lock file name under Unix.
\helpref{GetAppName()}{wxappgetappname} may be a good value for this parameter}
\helpref{GetAppName()}{wxappgetappname} and \helpref{wxGetUserId()}{wxgetuserid}
are commonly used to construct this parameter.}
\docparam{path}{is optional and is ignored under Win32 and used as the directory to
create the lock file in under Unix (default is