21977bac1a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12197 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
70 lines
1.7 KiB
TeX
70 lines
1.7 KiB
TeX
\section{\class{wxBusyInfo}}\label{wxbusyinfo}
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This class makes it easy to tell your user that the program is temporarily busy.
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Just create a wxBusyInfo object on the stack, and within the current scope,
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a message window will be shown.
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For example:
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\begin{verbatim}
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wxBusyInfo wait("Please wait, working...");
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for (int i = 0; i < 100000; i++)
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{
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DoACalculation();
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}
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\end{verbatim}
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It works by creating a window in the constructor,
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and deleting it in the destructor.
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You may also want to call wxTheApp->Yield() to refresh the window
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periodically (in case it had been obscured by other windows, for
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example) like this:
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\begin{verbatim}
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wxWindowDisabler disableAll;
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wxBusyInfo wait("Please wait, working...");
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for (int i = 0; i < 100000; i++)
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{
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DoACalculation();
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if ( !(i % 1000) )
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wxTheApp->Yield();
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}
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\end{verbatim}
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but take care to not cause undesirable reentrancies when doing it (see
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\helpref{wxApp::Yield()}{wxappyield} for more details). The simplest way to do
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it is to use \helpref{wxWindowDisabler}{wxwindowdisabler} class as illustrated
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in the above example.
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\wxheading{Derived from}
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None
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\wxheading{Include files}
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<wx/busyinfo.h>
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxBusyInfo::wxBusyInfo}
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\func{}{wxBusyInfo}{\param{const wxString\&}{ msg}, \param{wxParent }{*parent = NULL}}
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Constructs a busy info window as child of {\it parent} and displays {\it msg}
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in it.
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{\bf NB:} If {\it parent} is not {\tt NULL} you must ensure that it is not
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closed while the busy info is shown.
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\membersection{wxBusyInfo::\destruct{wxBusyInfo}}
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\func{}{\destruct{wxBusyInfo}}{\void}
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Hides and closes the window containing the information text.
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