1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
#pragma once
#include <comdef.h>
#include <comdefsp.h>
#define MCN_CONSTRUCT_COM_PTR_T(theClass, theBaseClass) \
public: \
theClass() \
{ \
} \
explicit theClass( \
const CLSID& clsid, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL) \
:CMcnComPtrT<theBaseClass>(clsid, pOuter, dwClsContext) \
{ \
} \
explicit theClass( \
LPCWSTR str, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL) \
:CMcnComPtrT<theBaseClass>(str, pOuter, dwClsContext) \
{ \
} \
explicit theClass( \
LPCSTR str, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL) \
:CMcnComPtrT<theBaseClass>(str, pOuter, dwClsContext) \
{ \
} \
theClass(const theBaseClass& sp) throw() \
:CMcnComPtrT<theBaseClass>(sp) \
{ \
} \
theClass& operator=(theBaseClass p) \
{ \
HRESULT hr = _QueryInterface(p); \
if (FAILED(hr) && (hr != E_NOINTERFACE)) { \
_com_issue_error(hr); \
} \
return *this; \
}
// T class must inherit directly of indirectly from _com_ptr_t
template< class T >
class CMcnComPtrT : public T
{
public:
typedef T baseType;
typedef CMcnComPtrT<T> thisType;
CMcnComPtrT()
{
}
explicit CMcnComPtrT(
const CLSID& clsid, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
:T(clsid, pOuter, dwClsContext)
{
}
explicit CMcnComPtrT(
LPCWSTR str, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
:T(str, pOuter, dwClsContext)
{
}
explicit CMcnComPtrT(
LPCSTR str, IUnknown* pOuter = NULL, DWORD dwClsContext = CLSCTX_ALL)
:T(str, pOuter, dwClsContext)
{
}
CMcnComPtrT(const T& sp) throw()
:T(sp)
{
}
protected:
template<typename _InterfacePtr>
HRESULT _QueryInterface(_InterfacePtr p) throw()
{
HRESULT hr;
if (p != NULL)
{
Interface* pInterface;
hr = p->QueryInterface(GetIID(), reinterpret_cast<void**>(&pInterface));
baseType::Attach(SUCCEEDED(hr)? pInterface: NULL);
}
else
{
baseType::operator=(static_cast<Interface*>(NULL));
hr = E_NOINTERFACE;
}
return hr;
}
}; // class CMcnComPtrT |
