106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
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// ITRS.H: ITResultSet interface declaration
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#ifndef __ITRS_H__
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#define __ITRS_H__
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// {3BB91D41-998B-11d0-A850-00AA006C7D01}
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DEFINE_GUID(IID_IITResultSet,
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0x3bb91d41, 0x998b, 0x11d0, 0xa8, 0x50, 0x0, 0xaa, 0x0, 0x6c, 0x7d, 0x1);
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// {4662daa7-d393-11d0-9a56-00c04fb68bf7} (changed from IT 3.0)
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DEFINE_GUID(CLSID_IITResultSet,
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0x4662daa7, 0xd393, 0x11d0, 0x9a, 0x56, 0x00, 0xc0, 0x4f, 0xb6, 0x8b, 0xf7);
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// maximum number of columns in a row set
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#define MAX_COLUMNS 256
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// Column priorities
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typedef enum
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{
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PRIORITY_LOW = 0,
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PRIORITY_NORMAL = 1,
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PRIORITY_HIGH = 2,
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} PRIORITY;
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// Forward declarations
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class CProperty;
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typedef struct tagROWSTATUS
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{
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LONG lRowFirst;
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LONG cRows;
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LONG cProperties;
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LONG cRowsTotal;
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} ROWSTATUS, *LPROWSTATUS;
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typedef struct tagCOLUMNSTATUS
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{
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LONG cPropCount;
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LONG cPropsLoaded;
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} COLUMNSTATUS, *LPCOLUMNSTATUS;
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// Used by IITResultSet::SetColumnHeap.
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typedef SCODE (__stdcall *PFNCOLHEAPFREE)(LPVOID);
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DECLARE_INTERFACE_(IITResultSet, IUnknown)
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{
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// Initialization
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STDMETHOD(SetColumnPriority)(LONG lColumnIndex, PRIORITY ColumnPriority) PURE;
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STDMETHOD(SetColumnHeap)(LONG lColumnIndex, LPVOID lpvHeap,
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PFNCOLHEAPFREE pfnColHeapFree) PURE;
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STDMETHOD(SetKeyProp)(PROPID PropID) PURE;
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STDMETHOD(Add)(LPVOID lpvHdr) PURE;
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STDMETHOD(Add)(PROPID PropID, LPVOID lpvDefaultData, DWORD cbData, PRIORITY Priority) PURE;
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STDMETHOD(Add)(PROPID PropID, LPCWSTR lpszwDefault, PRIORITY Priority) PURE;
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STDMETHOD(Add)(PROPID PropID, DWORD dwDefaultData, PRIORITY Priority) PURE;
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// Build result set
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STDMETHOD(Append)(LPVOID lpvHdr, LPVOID lpvData) PURE;
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STDMETHOD(Set)(LONG lRowIndex, LPVOID lpvHdr, LPVOID lpvData) PURE;
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STDMETHOD(Set)(LONG lRowIndex, LONG lColumnIndex, DWORD dwData) PURE;
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STDMETHOD(Set)(LONG lRowIndex, LONG lColumnIndex, LPCWSTR lpwStr) PURE;
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STDMETHOD(Set)(LONG lRowIndex, LONG lColumnIndex, LPVOID lpvData, DWORD cbData) PURE;
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STDMETHOD(Copy)(IITResultSet* pRSCopy) PURE;
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STDMETHOD(AppendRows)(IITResultSet* pResSrc, LONG lRowSrcFirst, LONG cSrcRows,
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LONG& lRowFirstDest) PURE;
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// Obtain info about result set
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STDMETHOD(Get)(LONG lRowIndex, LONG lColumnIndex, CProperty& Prop) PURE;
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STDMETHOD(GetKeyProp)(PROPID& KeyPropID) PURE;
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STDMETHOD(GetColumnPriority)(LONG lColumnIndex, PRIORITY& ColumnPriority) PURE;
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STDMETHOD(GetRowCount)(LONG& lNumberOfRows) PURE;
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STDMETHOD(GetColumnCount)(LONG& lNumberOfColumns) PURE;
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STDMETHOD(GetColumn)(LONG lColumnIndex, PROPID& PropID) PURE;
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STDMETHOD(GetColumn)(LONG lColumnIndex, PROPID& PropID, DWORD& dwType, LPVOID& lpvDefaultValue,
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DWORD& cbSize, PRIORITY& ColumnPriority) PURE;
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STDMETHOD(GetColumnFromPropID)(PROPID PropID, LONG& lColumnIndex) PURE;
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// Clear result set
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STDMETHOD(Clear)() PURE;
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STDMETHOD(ClearRows)() PURE;
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STDMETHOD(Free)() PURE;
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// Asynchronous support
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STDMETHOD(IsCompleted)() PURE; // returns S_OK or S_FALSE
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STDMETHOD(Cancel)() PURE;
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STDMETHOD(Pause)(BOOL fPause) PURE;
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STDMETHOD(GetRowStatus)(LONG lRowFirst, LONG cRows, LPROWSTATUS lpRowStatus) PURE;
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STDMETHOD(GetColumnStatus)(LPCOLUMNSTATUS lpColStatus) PURE;
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};
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typedef IITResultSet* LPITRS;
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#endif // __ITRS_H__
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