Files
wxWidgets/include/wx/msw/evtloopconsole.h
Vadim Zeitlin ebb3a791b9 Revert using an event object for waking up event loop in wxMSW
This reverts 6c40531fb7 ("Make main thread wake
up code more efficient and less error-prone in wxMSW") as, while being more
efficient, the new code doesn't work at all when we're not running the message
loop ourselves as it happens when the user opens a menu or starts resizing a
window because in both cases Windows runs a local message loop dispatching the
messages itself and this message loop doesn't react to our event object being
signalled.

So this approach can't work and needs to be reverted, even if it reintroduces
the danger of overflowing the message queue (see #9053).

Closes #17579.
2016-07-02 14:49:15 +02:00

54 lines
1.5 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/evtloopconsole.h
// Purpose: wxConsoleEventLoop class for Windows
// Author: Vadim Zeitlin
// Modified by:
// Created: 2004-07-31
// Copyright: (c) 2003-2004 Vadim Zeitlin <vadim@wxwindows.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_EVTLOOPCONSOLE_H_
#define _WX_MSW_EVTLOOPCONSOLE_H_
class WXDLLIMPEXP_BASE wxMSWEventLoopBase : public wxEventLoopManual
{
public:
wxMSWEventLoopBase();
// implement base class pure virtuals
virtual bool Pending() const;
protected:
// get the next message from queue and return true or return false if we
// got WM_QUIT or an error occurred
bool GetNextMessage(WXMSG *msg);
// same as above but with a timeout and return value can be -1 meaning that
// time out expired in addition to
int GetNextMessageTimeout(WXMSG *msg, unsigned long timeout);
};
#if wxUSE_CONSOLE_EVENTLOOP
class WXDLLIMPEXP_BASE wxConsoleEventLoop : public wxMSWEventLoopBase
{
public:
wxConsoleEventLoop() { }
// override/implement base class virtuals
virtual bool Dispatch();
virtual int DispatchTimeout(unsigned long timeout);
virtual void WakeUp();
// Windows-specific function to process a single message
virtual void ProcessMessage(WXMSG *msg);
protected:
virtual void DoYieldFor(long eventsToProcess);
};
#endif // wxUSE_CONSOLE_EVENTLOOP
#endif // _WX_MSW_EVTLOOPCONSOLE_H_