added a more convenient version of wxFileType::GetOpenCommand()

[wxWidgets.git] / docs / latex / wx / snglinst.tex

diff --git a/docs/latex/wx/snglinst.tex b/docs/latex/wx/snglinst.tex
index 98ffe82ff06406b43824d19db9819fd2ad4d8577..cab6ba0d4e2020dcc69382846e49f7ec2ed605fa 100644 (file)
--- a/docs/latex/wx/snglinst.tex
+++ b/docs/latex/wx/snglinst.tex
@@ -24,7 +24,8 @@ example:
 \begin{verbatim}
 bool MyApp::OnInit()
 {
 \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."));
     if ( m_checker->IsAnotherRunning() )
     {
         wxLogError(_("Another program instance is already running, aborting."));


@@ -45,14 +46,21 @@ int MyApp::OnExit()
 }
 \end{verbatim}
 
 }
 \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}
 
 No base class
 
 
 \wxheading{Derived from}
 
 No base class
 

-\wxheading{Data structures}
+\wxheading{Include files}
+
+<wx/snglinst.h>

 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 


@@ -80,13 +88,14 @@ had been used is an error.
 
 \wxheading{Parameters}
 
 
 \wxheading{Parameters}
 

-\docparam{name}{must be given and be as unique as possible, it is used as the
+\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. 
 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 
 
 \docparam{path}{is optional and is ignored under Win32 and used as the directory to
 create the lock file in under Unix (default is 

-\helpref{wxGetHomeDir()}{wxgethomedir})
+\helpref{wxGetHomeDir()}{wxgethomedir})}

 
 \wxheading{Return value}
 
 
 \wxheading{Return value}