Source code of Windows XP (NT5)
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/*******************************************************************************
*
* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
*
* TITLE: THRDNTFY.H
*
* VERSION: 1.0
*
* AUTHOR: ShaunIv
*
* DATE: 9/28/1999
*
* DESCRIPTION: Class declarations for a class that is sent from the background
* thread to the UI thread.
*
*******************************************************************************/
#ifndef __THRDNTFY_H_INCLUDED
#define __THRDNTFY_H_INCLUDED
#include <windows.h>
#define STR_THREAD_NOTIFICATION_MESSAGE TEXT("WiaDowloadManagerThreadNotificationMessage")
#define STR_WIAEVENT_NOTIFICATION_MESSAGE TEXT("WiaDowloadManagerWiaEventNotificationMessage")
//
// If the callee doesn't return this value, we delete the message data ourselves.
//
#define HANDLED_THREAD_MESSAGE 1001
class CThreadNotificationMessage
{
private:
UINT m_nMessage;
public:
CThreadNotificationMessage( UINT nMessage = 0 )
: m_nMessage(nMessage)
{
}
virtual ~CThreadNotificationMessage(void)
{
}
UINT Message(void) const
{
return m_nMessage;
}
void Message( UINT nMessage )
{
m_nMessage = nMessage;
}
private:
static UINT s_nThreadNotificationMessage;
public:
static void SendMessage( HWND hWnd, CThreadNotificationMessage *pThreadNotificationMessage )
{
if (pThreadNotificationMessage)
{
LRESULT lRes = 0;
if (!s_nThreadNotificationMessage)
{
s_nThreadNotificationMessage = RegisterWindowMessage(STR_THREAD_NOTIFICATION_MESSAGE);
}
if (s_nThreadNotificationMessage)
{
lRes = ::SendMessage( hWnd, s_nThreadNotificationMessage, pThreadNotificationMessage->Message(), reinterpret_cast<LPARAM>(pThreadNotificationMessage) );
}
if (HANDLED_THREAD_MESSAGE != lRes)
{
delete pThreadNotificationMessage;
}
}
}
};
// Some handy message crackers. Made to resemble the ones defined in simcrack.h
#define WTM_BEGIN_THREAD_NOTIFY_MESSAGE_HANDLERS()\
CThreadNotificationMessage *_pThreadNotificationMessage = reinterpret_cast<CThreadNotificationMessage*>(lParam);\
if (_pThreadNotificationMessage)\
{
#define WTM_HANDLE_NOTIFY_MESSAGE( _msg, _handler )\
if (_pThreadNotificationMessage->Message() == (_msg))\
{\
_handler( _msg, _pThreadNotificationMessage );\
}
#define WTM_END_THREAD_NOTIFY_MESSAGE_HANDLERS()\
}\
return 0
#endif //__THRDNTFY_H_INCLUDED