pxcmpmgr.h

来自「著名的 helix realplayer 基于手机 symbian 系统的 播放」· C头文件 代码 · 共 60 行

/* ***** BEGIN LICENSE BLOCK ***** 
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#ifndef PXCMPMGR_H
#define PXCMPMGR_H

class PXComponentManager : public CHXBaseCountingObject
{
public:
    STDMETHOD(Init)                      (THIS_ IUnknown* pContext, REFIID riid);
    STDMETHOD(IsComponentPresent)        (THIS_ const char* pszID,  BOOL* pbPresent);
    STDMETHOD(GetComponent)              (THIS_ const char* pszID,  BOOL* pbPresent, IUnknown** ppComponent);
    STDMETHOD(SetActiveComponent)        (THIS_ const char* pszID);
    STDMETHOD(ReleaseInactiveComponents) (THIS);
protected:
    PXComponentManager();
    virtual ~PXComponentManager();

    CHXSimpleList*    m_pComponentList;
    CHXMapStringToOb* m_pActiveMap;

    void              ReleaseAllComponents();
    void              ClearActiveMap();
    virtual HX_RESULT GetID(IUnknown* pComponent, REF(const char*) rpszID) = 0;
};

#endif