1 // Windows/PropVariant.h
2 
3 #ifndef __WINDOWS_PROPVARIANT_H
4 #define __WINDOWS_PROPVARIANT_H
5 
6 #include "../Common/MyWindows.h"
7 #include "../Common/Types.h"
8 
9 namespace NWindows {
10 namespace NCOM {
11 
12 class CPropVariant : public tagPROPVARIANT
13 {
14 public:
CPropVariant()15   CPropVariant() { vt = VT_EMPTY; }
~CPropVariant()16   ~CPropVariant() { Clear(); }
17   CPropVariant(const PROPVARIANT& varSrc);
18   CPropVariant(const CPropVariant& varSrc);
19   CPropVariant(BSTR bstrSrc);
20   CPropVariant(LPCOLESTR lpszSrc);
CPropVariant(bool bSrc)21   CPropVariant(bool bSrc) { vt = VT_BOOL; boolVal = (bSrc ? VARIANT_TRUE : VARIANT_FALSE); };
CPropVariant(UInt32 value)22   CPropVariant(UInt32 value) {  vt = VT_UI4; ulVal = value; }
CPropVariant(UInt64 value)23   CPropVariant(UInt64 value) {  vt = VT_UI8; uhVal = *(ULARGE_INTEGER*)&value; }
CPropVariant(const FILETIME & value)24   CPropVariant(const FILETIME &value) {  vt = VT_FILETIME; filetime = value; }
CPropVariant(Int32 value)25   CPropVariant(Int32 value) { vt = VT_I4; lVal = value; }
CPropVariant(Byte value)26   CPropVariant(Byte value) { vt = VT_UI1; bVal = value; }
CPropVariant(Int16 value)27   CPropVariant(Int16 value) { vt = VT_I2; iVal = value; }
28   // CPropVariant(LONG value, VARTYPE vtSrc = VT_I4) { vt = vtSrc; lVal = value; }
29 
30   CPropVariant& operator=(const CPropVariant& varSrc);
31   CPropVariant& operator=(const PROPVARIANT& varSrc);
32   CPropVariant& operator=(BSTR bstrSrc);
33   CPropVariant& operator=(LPCOLESTR lpszSrc);
34   CPropVariant& operator=(bool bSrc);
35   CPropVariant& operator=(UInt32 value);
36   CPropVariant& operator=(UInt64 value);
37   CPropVariant& operator=(const FILETIME &value);
38 
39   CPropVariant& operator=(Int32 value);
40   CPropVariant& operator=(Byte value);
41   CPropVariant& operator=(Int16 value);
42   // CPropVariant& operator=(LONG  value);
43 
44   HRESULT Clear();
45   HRESULT Copy(const PROPVARIANT* pSrc);
46   HRESULT Attach(PROPVARIANT* pSrc);
47   HRESULT Detach(PROPVARIANT* pDest);
48 
49   HRESULT InternalClear();
50   void InternalCopy(const PROPVARIANT* pSrc);
51 
52   int Compare(const CPropVariant &a1);
53 };
54 
55 }}
56 
57 #endif
58