79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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// WinIdle.h - Defines a class for sending idle messages to a window from a secondary thread
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#ifndef __WINIDLE_H__
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#define __WINIDLE_H__
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class CWinIdle
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{
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protected:
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HANDLE m_hIdleEvent, m_hStopEvent;
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HWND m_hWnd;
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UINT m_uMsg;
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WPARAM m_wParam;
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LPARAM m_lParam;
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DWORD m_dwDelay;
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HANDLE m_hIdleThread;
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// The thread calling stub
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static DWORD WINAPI ThreadStub(LPVOID pIdle);
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// The actual idle loop
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virtual DWORD RunIdle();
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public:
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CWinIdle();
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virtual ~CWinIdle();
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inline DWORD GetDelay() {return m_dwDelay;}
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inline void SetDelay(DWORD delay) {m_dwDelay = delay;}
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// Member access
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virtual HANDLE GetThreadHandle() const { return m_hIdleThread; };
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// Start idling, and define the message and window to use
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// Returns TRUE on success
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virtual BOOL StartIdle(HWND hWnd, UINT uMessage, WPARAM wParam = 0, LPARAM lParam = 0, DWORD dwDelay = 0);
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// Stop idling
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// Returns TRUE on success
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virtual BOOL EndIdle();
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// Notify the idle process that the message was received.
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// Note : If this function is not called, the idle thread will not send any messages
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virtual void NextIdle();
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};
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// Used to slow down the idle thread while dialogs are up.
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class IdleChanger
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{
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public:
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IdleChanger(CWinIdle *pIdle, DWORD msDelay)
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{
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m_pIdle = pIdle;
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m_OldDelay = pIdle->GetDelay();
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pIdle->SetDelay(msDelay);
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}
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~IdleChanger()
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{
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m_pIdle->SetDelay(m_OldDelay);
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}
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CWinIdle *m_pIdle;
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DWORD m_OldDelay;
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};
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#endif //__WINIDLE_H__
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