155 lines
4.2 KiB
C++
155 lines
4.2 KiB
C++
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/*++
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Copyright (C) Microsoft Corporation, 1995 - 1999
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All rights reserved.
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Module Name:
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spllibex.hxx
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Abstract:
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spllib extentions
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Author:
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Lazar Ivanov (LazarI) 29-Mar-2000
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Revision History:
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--*/
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#ifndef _SPLLIBEX_HXX
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#define _SPLLIBEX_HXX
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////////////////////////////////////////////////
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//
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// class CMsgBoxCounter
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//
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// global message box counter based on TLS cookies
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//
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class CMsgBoxCounter
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{
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public:
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enum { INVALID_COUNT = -1 };
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CMsgBoxCounter(UINT uFlags = MB_ICONHAND);
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~CMsgBoxCounter();
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static BOOL Initialize();
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static BOOL Uninitialize();
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static UINT GetCount();
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static BOOL IsInitialized();
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static void LogMessage(UINT uFlags);
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// override the the last error message
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// based on the context where the error
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// occured.
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static void SetMsg(UINT uMsgID);
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static UINT GetMsg();
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private:
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UINT m_uCount;
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UINT m_uFlags;
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UINT m_uMsgID;
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};
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/////////////////////////////////////////////////////
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// interface - IPrinterChangeCallback
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//
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#undef INTERFACE
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#define INTERFACE IPrinterChangeCallback
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DECLARE_INTERFACE_(IPrinterChangeCallback, IUnknown)
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{
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//////////////////
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// IUnknown
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//
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STDMETHOD(QueryInterface)(THIS_ REFIID riid, LPVOID * ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef)(THIS) PURE;
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STDMETHOD_(ULONG,Release)(THIS) PURE;
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///////////////////////////
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// IPrinterChangeCallback
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//
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STDMETHOD(PrinterChange)(ULONG_PTR uCookie, DWORD dwChange, const PRINTER_NOTIFY_INFO *pInfo) PURE;
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};
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////////////////////////////////////////////////
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//
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// class CPrintNotify
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//
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// printer notifications listener
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//
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class CPrintNotify: public MNotifyWork
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{
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public:
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typedef HRESULT (*PFN_PrinterChange)(LPVOID lpCookie, ULONG_PTR uCookie, DWORD dwChange, const PRINTER_NOTIFY_INFO *pInfo);
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CPrintNotify(
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IPrinterChangeCallback *pClient,
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DWORD dwCount,
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const PPRINTER_NOTIFY_OPTIONS_TYPE arrNotifications,
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DWORD dwFlags
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);
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~CPrintNotify();
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HRESULT Initialize(LPCTSTR pszPrinter); // the printer to listen, can be NULL for the server case
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HRESULT Uninitialize(); // stop listen & shutdown
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HRESULT Refresh(LPVOID lpCookie, PFN_PrinterChange pfn); // refresh all
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HRESULT StartListen(); // start listening for notifications
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HRESULT StopListen(); // stop listening and close the handles
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HRESULT SetCookie(ULONG_PTR uCookie); // set a cookie to be passed back in the callbacks
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LPCTSTR GetPrinter() const; // return the current printer, NULL if not initialized
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HANDLE GetPrinterHandle() const; // return the current printer handle
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private:
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HRESULT _NotifyRegister(BOOL bRegister);
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// MNotifyWork impl.
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virtual HANDLE hEvent() const;
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virtual void vProcessNotifyWork(TNotify *pNotify);
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// members
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DWORD m_dwCount;
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const PPRINTER_NOTIFY_OPTIONS_TYPE m_arrNotifications;
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BOOL m_bRegistered;
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ULONG_PTR m_uCookie;
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DWORD m_dwFlags;
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CAutoHandlePrinterNotify m_shNotify;
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CAutoHandlePrinter m_shPrinter;
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CRefPtrCOM<IPrinterChangeCallback> m_spClient;
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TString m_strPrinter;
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TRefLock<TPrintLib> m_pPrintLib;
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// !!MT NOTES!!
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// all the functions of this object besides hEvent, vProcessNotifyWork
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// and GetPrinter should never be used from multiple threads simultaneously!
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// they can only be called from the tray UI thread (i.e. from within the
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// wndproc of the hidden tray window).
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SINGLETHREAD_VAR(TrayUIThread)
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};
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///////////////////////////////////////////////////////////////
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// CMultilineEditBug - edit control subclass
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//
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// there is a bug in the multiline edit control which now
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// is considered a "feature" since it's been there forever.
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// the bug is that the edit contol is eating the VK_RETURN
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// even if it doesn't have the ES_WANTRETURN style which is
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// preventing the dialog from closing.
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//
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class CMultilineEditBug: public CSimpleWndSubclass<CMultilineEditBug>
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{
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public:
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CMultilineEditBug() { }
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// default subclass proc
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LRESULT WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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};
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#endif // ndef _SPLLIBEX_HXX
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