Registry.h

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#ifndef __DCL_REGISTRY_H__
#define __DCL_REGISTRY_H__      20080607
 
#ifndef __DCL_CONFIG_H__
#include <dcl/_Config.h>
#endif
 
#include <winreg.h>
 
#ifndef __DCL_OBJECT_H__
#include <dcl/Object.h>
#endif
#ifndef __DCL_EXCEPTION_H__
#include <dcl/Exception.h>
#endif
#ifndef __DCL_STRING_H__
#include <dcl/String.h>
#endif
 
__DCL_BEGIN_NAMESPACE
 
#if __DCL_HAVE_THIS_FILE__
    #undef __THIS_FILE__
    static const char_t __szWinRegistry_h__[] = __T("dcl/Registry.h");
    #define __THIS_FILE__ __szWinRegistry_h__
#endif
 
typedef struct _REGISTRY_DATAINFO
{
    DWORD   dwDataType;
    DWORD   dwDataSize;
} REGISTRY_DATAINFO;
 
class DCLCAPI Registry : public Object
{
    DECLARE_CLASSINFO(Registry)
public:
    Registry(HKEY hParentKey);
 
    Registry(
        HKEY hParentKey,
        const String& strKey,
        REGSAM samDesired = KEY_READ
    ) __DCL_THROWS1(IOException*);
 
    virtual ~Registry();
 
    void create(const String& strKey, REGSAM samDesired = KEY_ALL_ACCESS)
        __DCL_THROWS1(IOException*);
 
    void open(const String& strKey, REGSAM samDesired = KEY_ALL_ACCESS)
        __DCL_THROWS1(IOException*);
 
    void close()
        __DCL_THROWS1(IOException*);
 
    String getString(const String& strName)
        __DCL_THROWS1(IOException*);
 
    int getInteger(const String& strName)
        __DCL_THROWS1(IOException*);
 
    void setValue(const String& strName, const String& strValue)
        __DCL_THROWS1(IOException*);
 
    void setValue(const String& strName, int nValue);
        __DCL_THROWS1(IOException*);
 
    HKEY parentKey() const;
    HKEY key() const;
    REGSAM sam() const;
    const String& keyName() const;
    bool opened() const;
    bool existsValue(const String& strName);
    bool existsSubKey(const String& strKey) const;
    static bool existsKey(const String& strKeyName, HKEY hParentKey);
 
protected:
    HKEY    __hParentKey;
    HKEY    __hKey;
    REGSAM  __samDesired;
    String  __strKey;
 
    LONG getDataInfo(const String& strName, REGISTRY_DATAINFO& info);
};
 
inline HKEY Registry::parentKey() const
{ 
    return __hParentKey; 
}
 
inline HKEY Registry::key() const
{ 
    __DCL_ASSERT(opened()); 
    return  __hKey; 
}
 
inline REGSAM Registry::sam() const
{
    __DCL_ASSERT(opened());
    return __samDesired;
}
 
inline const String& Registry::keyName() const 
{
    __DCL_ASSERT(opened());
    return __strKey; 
}
 
inline bool Registry::opened() const
{
    return __hKey != NULL; 
}
 
inline bool Registry::existsSubKey(const String& strKey) const
{
    return Registry::existsKey(strKey, __hKey);
}
 
#if __DCL_HAVE_THIS_FILE__
    #undef __THIS_FILE__
    #define __THIS_FILE__   __T(__FILE__)
#endif
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_REGISTRY_H__