MSGLOOP.H

//--------------------------------------------------------------------------- 
// MsgLoop.h 
//--------------------------------------------------------------------------- 
// (C) Copyright 1995-1997 by Microsoft Corporation.  All rights reserved. 
// 
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF  
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO  
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A  
// PARTICULAR PURPOSE. 
//--------------------------------------------------------------------------- 
 
 
//--------------------------------------------------------------------------- 
// In we need to track per Component. 
//--------------------------------------------------------------------------- 
typedef struct tagCOMP 
  { 
  IOleComponent *pcomp; 
  } COMP; 
 
#define cCOMP     10 
#define icompNIL  0xffffffff 
 
 
//--------------------------------------------------------------------------- 
// 
//--------------------------------------------------------------------------- 
class CMsgLoop : public IOleComponentManager 
  { 
public: 
  // *** Constructor / Destructor *** 
  CMsgLoop(HWND hwnd); 
  virtual ~CMsgLoop(); 
 
  // *** IUnknown methods *** 
  STDMETHOD(QueryInterface)(REFIID riid, void **ppvObj); 
  STDMETHOD_(ULONG, AddRef)(void); 
  STDMETHOD_(ULONG, Release)(void); 
 
  // *** IOleComponentManager Methods 
  STDMETHOD(QueryService)(REFGUID guidService, REFIID iid, void **ppvObj); 
  STDMETHOD_(BOOL, FRegisterComponent)(IOleComponent *piComponent, const CMGRRINFO *pcrinfo, DWORD *pdwComponentID); 
  STDMETHOD_(BOOL, FRevokeComponent)(DWORD dwComponentID); 
  STDMETHOD_(BOOL, FUpdateComponentRegistration)(DWORD dwComponentID, const CMGRRINFO *pcrinfo); 
  STDMETHOD_(void, OnComponentActivate)(DWORD dwComponentID); 
  STDMETHOD_(BOOL, FSetTrackingComponent)(DWORD dwComponentID, BOOL fTrack); 
  STDMETHOD_(void, OnComponentEnterState)(DWORD dwComponentID, ULONG uStateID, ULONG uContext, ULONG cpicmExclude, IOleComponentManager **rgpicmExclude, DWORD dwReserved); 
  STDMETHOD_(BOOL, FOnComponentExitState)(DWORD dwComponentID, ULONG uStateID, ULONG uContext, ULONG cpicmExclude, IOleComponentManager **rgpicmExclude); 
  STDMETHOD_(BOOL, FInState)(ULONG uStateID, void *pvoid); 
  STDMETHOD_(BOOL, FContinueIdle)(void); 
  STDMETHOD_(BOOL, FPushMessageLoop)(DWORD dwComponentID, ULONG uReason, void *pvLoopData); 
  STDMETHOD_(BOOL, FCreateSubComponentManager)(IUnknown *piunkOuter, IUnknown *piunkServProv, REFIID riid, void **ppvObj); 
  STDMETHOD_(BOOL, FGetParentComponentManager)(IOleComponentManager **ppicm); 
  STDMETHOD_(BOOL, FGetActiveComponent)(DWORD dwReserved, IOleComponent **ppic); 
 
  // *** Implementation of FPushMessageLoop from IOleComponentManager 
  BOOL PumpMessage(DWORD icomp, ULONG uReason, void *pvLoopData); 
  void ProcessMessage(MSG *pmsg); 
  void MessageLoop(DWORD icomp, ULONG uReason, void *pvLoopData); 
  void DoIdleProcessing(void); 
  BOOL DoIdle(void); 
 
  // *** Publicly available state *** 
  COMP   m_rgcomp[cCOMP]; // Array of components for our compmgr 
  DWORD  m_icompActive; 
  BOOL   m_fInState; 
  DWORD  m_icompState; 
  ULONG  m_uStateID; 
  BOOL   m_fScrptReset; 
  BOOL   m_fQuitting; 
  HWND   m_hwnd; 
  HACCEL m_haccel; 
 
private: 
  ULONG m_cref; 
  ULONG m_cMsgLoop; 
  DWORD m_icompMsgLoop; 
 
  // DEBUG info 
  #define SIG_MsgLoop 'MsgL' 
  DECLARE_SIGNATURE(SIG_MsgLoop); 
  }; 
 
//--- EOF -------------------------------------------------------------------