153 lines
3.2 KiB
Plaintext
153 lines
3.2 KiB
Plaintext
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#include "stdinc.idl"
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//
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// REVIEW Are we supposed to give structs guids?
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//
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struct SxApwColumnInfo; typedef struct SxApwColumnInfo SxApwColumnInfo;
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struct SxApwColumnInfo
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{
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LPCWSTR Name;
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BOOL IsNumber;
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};
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cpp_quote("#if defined(__cplusplus)
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extern \"C++\" {
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template <typename T>
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class CSxApwColumnInfoTemplate
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{
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public:
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void SetName(LPCWSTR name)
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{
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T::FreeString(m.Name);
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m.Name = T::DupString(name);
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}
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CSxApwColumnInfoTemplate(const CSxApwColumnInfoTemplate& that)
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{
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m.Name = T::DupString(that.m.Name);
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m.IsNumber = that.m.IsNumber;
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}
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void operator=(const CSxApwColumnInfoTemplate& that)
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{
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if (&that != this)
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{
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if (that.m.Name != NULL)
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{
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PWSTR temp = T::DupString(that.m.Name);
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if (temp == NULL)
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return;
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T::FreeString(m.Name);
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m.Name = temp;
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}
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m.IsNumber = that.m.IsNumber;
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}
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}
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CSxApwColumnInfoTemplate() { m.Name = NULL; m.IsNumber = FALSE; }
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~CSxApwColumnInfoTemplate() { T::FreeString(m.Name); }
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SxApwColumnInfo m;
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};")
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/* break up cpp_quote to avoid Midl bug that drops random characters */
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cpp_quote("
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class CSxApwColumnInfoTraits
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{
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public:
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static void FreeString(LPCWSTR& s)
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{
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::CoTaskMemFree(const_cast<PWSTR>(s));
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s = NULL;
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}
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static LPWSTR DupString(LPCWSTR s)
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{
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if (s == NULL)
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return NULL;
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PWSTR t = reinterpret_cast<LPWSTR>(::CoTaskMemAlloc((wcslen(s) + 1) * sizeof(*s)));
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if (t == NULL)
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return NULL;
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wcscpy(t, s);
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return t;
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}
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};")
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/* break up cpp_quote to avoid Midl bug that drops random characters */
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cpp_quote("
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typedef CSxApwColumnInfoTemplate<CSxApwColumnInfoTraits> CSxApwColumnInfo;
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class CSxApwBstrColumnInfoTraits
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{
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public:
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static void FreeString(LPCWSTR& s)
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{
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::SysFreeString(const_cast<BSTR>(s));
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s = NULL;
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}
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static BSTR DupString(LPCWSTR s)
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{
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if (s == NULL)
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return NULL;
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BSTR t = reinterpret_cast<BSTR>(::SysAllocString(s));
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if (t == NULL)
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return NULL;
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wcscpy(t, s);
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return t;
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}
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};")
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/* break up cpp_quote to avoid Midl bug that drops random characters */
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cpp_quote("
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typedef CSxApwColumnInfoTemplate<CSxApwBstrColumnInfoTraits> CSxApwBstrColumnInfo;
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typedef CSxApwBstrColumnInfo CSxApwAdoColumnInfo;
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} /* extern C++ */")
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cpp_quote("#endif")
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[
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object,
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uuid(IID_ISxApwHost_midl)
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]
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interface ISxApwHost : IUnknown
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{
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HRESULT
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SetDataSource(
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[in] LPCWSTR
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);
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HRESULT
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CreateView(
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[in] LPCWSTR
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);
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HRESULT
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DestroyView(
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[in] LPCWSTR
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);
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HRESULT
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RunQuery(
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[in] LPCWSTR
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);
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HRESULT
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OnNextRow(
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[in] int nColumns,
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[in, size_is(nColumns)] const LPCWSTR columns[]
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);
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HRESULT
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OnRowCountEstimateAvailable(
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[in] int
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);
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HRESULT
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OnQueryDone(
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);
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HRESULT
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InformSchema(
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[in, size_is(nColumns)] const SxApwColumnInfo rgColumnInfo[],
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[in] int nColumns
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);
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};
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