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///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/apptbase.h
// Purpose: declaration of wxAppTraits for MSW
// Author: Vadim Zeitlin
// Modified by:
// Created: 22.06.2003
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_APPTBASE_H_
#define _WX_MSW_APPTBASE_H_
// ----------------------------------------------------------------------------
// wxAppTraits: the MSW version adds extra hooks needed by MSW-only code
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_BASE wxAppTraits : public wxAppTraitsBase
{
public:
// wxExecute() support methods
// ---------------------------
// called before starting to wait for the child termination, may return
// some opaque data which will be passed later to AfterChildWaitLoop()
virtual void *BeforeChildWaitLoop() = 0;
// called after starting to wait for the child termination, the parameter
// is the return value of BeforeChildWaitLoop()
virtual void AfterChildWaitLoop(void *data) = 0;
#if wxUSE_THREADS
// wxThread helpers
// ----------------
// process a message while waiting for a(nother) thread, should return
// false if and only if we have to exit the application
virtual bool DoMessageFromThreadWait() = 0;
// wait for the handle to be signaled, return WAIT_OBJECT_0 if it is or, in
// the GUI code, WAIT_OBJECT_0 + 1 if a Windows message arrived
virtual WXDWORD WaitForThread(WXHANDLE hThread, int flags) = 0;
#endif // wxUSE_THREADS
#ifndef __WXWINCE__
// console helpers
// ---------------
// this method can be overridden by a derived class to always return true
// or false to force [not] using the console for output to stderr
//
// by default console applications always return true from here while the
// GUI ones only return true if they're being run from console and there is
// no other activity happening in this console
virtual bool CanUseStderr() = 0;
// write text to the console, return true if ok or false on error
virtual bool WriteToStderr(const wxString& text) = 0;
#endif // !__WXWINCE__
protected:
#if wxUSE_THREADS
// implementation of WaitForThread() for the console applications which is
// also used by the GUI code if it doesn't [yet|already] dispatch events
WXDWORD DoSimpleWaitForThread(WXHANDLE hThread);
#endif // wxUSE_THREADS
};
#endif // _WX_MSW_APPTBASE_H_
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