msiquery.h

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// Only needs to be called if not all records have been fetched
// Returns ERROR_SUCCESS, ERROR_INVALID_HANDLE, ERROR_INVALID_HANDLE_STATE

UINT WINAPI MsiViewClose(MSIHANDLE hView);

// Return a record containing the names of all primary key columns for a given table
// Returns an MSIHANDLE for a record containing the name of each column.
// The field count of the record corresponds to the number of primary key columns.
// Field [0] of the record contains the table name.
// Returns ERROR_SUCCESS, ERROR_INVALID_HANDLE, ERROR_INVALID_TABLE

UINT WINAPI MsiDatabaseGetPrimaryKeysA(MSIHANDLE hDatabase,
	LPCSTR    szTableName,       // the name of a specific table <case-sensitive>
	MSIHANDLE  *phRecord);         // returned record if ERROR_SUCCESS
UINT WINAPI MsiDatabaseGetPrimaryKeysW(MSIHANDLE hDatabase,
	LPCWSTR    szTableName,       // the name of a specific table <case-sensitive>
	MSIHANDLE  *phRecord);         // returned record if ERROR_SUCCESS
#ifdef UNICODE
#define MsiDatabaseGetPrimaryKeys  MsiDatabaseGetPrimaryKeysW
#else
#define MsiDatabaseGetPrimaryKeys  MsiDatabaseGetPrimaryKeysA
#endif // !UNICODE

// Return an enum defining the state of the table (temporary, unknown, or persistent).
// Returns MSICONDITION_ERROR, MSICONDITION_FALSE, MSICONDITION_TRUE, MSICONDITION_NONE

MSICONDITION WINAPI MsiDatabaseIsTablePersistentA(MSIHANDLE hDatabase,
	LPCSTR szTableName);         // the name of a specific table
MSICONDITION WINAPI MsiDatabaseIsTablePersistentW(MSIHANDLE hDatabase,
	LPCWSTR szTableName);         // the name of a specific table
#ifdef UNICODE
#define MsiDatabaseIsTablePersistent  MsiDatabaseIsTablePersistentW
#else
#define MsiDatabaseIsTablePersistent  MsiDatabaseIsTablePersistentA
#endif // !UNICODE

// --------------------------------------------------------------------------
// Summary information stream management functions
// --------------------------------------------------------------------------

// Integer Property IDs:    1, 14, 15, 16, 19 
// DateTime Property IDs:   10, 11, 12, 13
// Text Property IDs:       2, 3, 4, 5, 6, 7, 8, 9, 18
// Unsupported Propery IDs: 0 (PID_DICTIONARY), 17 (PID_THUMBNAIL)

// Obtain a handle for the _SummaryInformation stream for an MSI database     
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiGetSummaryInformationA(MSIHANDLE hDatabase, // 0 if not open
	LPCSTR  szDatabasePath,  // path to database, 0 if database handle supplied
	UINT     uiUpdateCount,    // maximium number of updated values, 0 to open read-only
	MSIHANDLE *phSummaryInfo); // returned handle to summary information data
UINT WINAPI MsiGetSummaryInformationW(MSIHANDLE hDatabase, // 0 if not open
	LPCWSTR  szDatabasePath,  // path to database, 0 if database handle supplied
	UINT     uiUpdateCount,    // maximium number of updated values, 0 to open read-only
	MSIHANDLE *phSummaryInfo); // returned handle to summary information data
#ifdef UNICODE
#define MsiGetSummaryInformation  MsiGetSummaryInformationW
#else
#define MsiGetSummaryInformation  MsiGetSummaryInformationA
#endif // !UNICODE

// Obtain the number of existing properties in the SummaryInformation stream

UINT WINAPI MsiSummaryInfoGetPropertyCount(MSIHANDLE hSummaryInfo,
	UINT *puiPropertyCount); // pointer to location to return total property count

// Set a single summary information property
// Returns ERROR_SUCCESS, ERROR_INVALID_HANDLE, ERROR_UNKNOWN_PROPERTY

UINT WINAPI MsiSummaryInfoSetPropertyA(MSIHANDLE hSummaryInfo,
	UINT     uiProperty,     // property ID, one of allowed values for summary information
	UINT     uiDataType,     // VT_I4, VT_LPSTR, VT_FILETIME, or VT_EMPTY
	INT      iValue,         // integer value, used only if integer property
	FILETIME *pftValue,      // pointer to filetime value, used only if datetime property
	LPCSTR szValue);       // text value, used only if string property
UINT WINAPI MsiSummaryInfoSetPropertyW(MSIHANDLE hSummaryInfo,
	UINT     uiProperty,     // property ID, one of allowed values for summary information
	UINT     uiDataType,     // VT_I4, VT_LPSTR, VT_FILETIME, or VT_EMPTY
	INT      iValue,         // integer value, used only if integer property
	FILETIME *pftValue,      // pointer to filetime value, used only if datetime property
	LPCWSTR szValue);       // text value, used only if string property
#ifdef UNICODE
#define MsiSummaryInfoSetProperty  MsiSummaryInfoSetPropertyW
#else
#define MsiSummaryInfoSetProperty  MsiSummaryInfoSetPropertyA
#endif // !UNICODE

// Get a single property from the summary information
// Returns ERROR_SUCCESS, ERROR_INVALID_HANDLE, ERROR_UNKNOWN_PROPERTY

UINT WINAPI MsiSummaryInfoGetPropertyA(MSIHANDLE hSummaryInfo,
	UINT     uiProperty,     // property ID, one of allowed values for summary information
	UINT     *puiDataType,   // returned type: VT_I4, VT_LPSTR, VT_FILETIME, VT_EMPTY
	INT      *piValue,       // returned integer property data
	FILETIME *pftValue,      // returned datetime property data
	LPSTR  szValueBuf,     // buffer to return string property data
	DWORD    *pcchValueBuf); // in/out buffer character count
UINT WINAPI MsiSummaryInfoGetPropertyW(MSIHANDLE hSummaryInfo,
	UINT     uiProperty,     // property ID, one of allowed values for summary information
	UINT     *puiDataType,   // returned type: VT_I4, VT_LPSTR, VT_FILETIME, VT_EMPTY
	INT      *piValue,       // returned integer property data
	FILETIME *pftValue,      // returned datetime property data
	LPWSTR  szValueBuf,     // buffer to return string property data
	DWORD    *pcchValueBuf); // in/out buffer character count
#ifdef UNICODE
#define MsiSummaryInfoGetProperty  MsiSummaryInfoGetPropertyW
#else
#define MsiSummaryInfoGetProperty  MsiSummaryInfoGetPropertyA
#endif // !UNICODE

// Write back changed information to summary information stream

UINT WINAPI MsiSummaryInfoPersist(MSIHANDLE hSummaryInfo);

// --------------------------------------------------------------------------
// Installer database management functions - not used by custom actions
// --------------------------------------------------------------------------

// Open an installer database, specifying the persistance mode, which is a pointer.
// Predefined persist values are reserved pointer values, requiring pointer arithmetic.
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiOpenDatabaseA(
	LPCSTR      szDatabasePath,  // path to database, 0 to create temporary database
	LPCSTR      szPersist,       // output database path or one of predefined values
	MSIHANDLE*   phDatabase);     // location to return database handle
UINT WINAPI MsiOpenDatabaseW(
	LPCWSTR      szDatabasePath,  // path to database, 0 to create temporary database
	LPCWSTR      szPersist,       // output database path or one of predefined values
	MSIHANDLE*   phDatabase);     // location to return database handle
#ifdef UNICODE
#define MsiOpenDatabase  MsiOpenDatabaseW
#else
#define MsiOpenDatabase  MsiOpenDatabaseA
#endif // !UNICODE

// Import an MSI text archive table into an open database
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseImportA(MSIHANDLE hDatabase,
	LPCSTR   szFolderPath,     // folder containing archive files
	LPCSTR   szFileName);      // table archive file to be imported
UINT WINAPI MsiDatabaseImportW(MSIHANDLE hDatabase,
	LPCWSTR   szFolderPath,     // folder containing archive files
	LPCWSTR   szFileName);      // table archive file to be imported
#ifdef UNICODE
#define MsiDatabaseImport  MsiDatabaseImportW
#else
#define MsiDatabaseImport  MsiDatabaseImportA
#endif // !UNICODE

// Export an MSI table from an open database to a text archive file
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseExportA(MSIHANDLE hDatabase,
	LPCSTR   szTableName,      // name of table in database <case-sensitive>
	LPCSTR   szFolderPath,     // folder containing archive files
	LPCSTR   szFileName);      // name of exported table archive file
UINT WINAPI MsiDatabaseExportW(MSIHANDLE hDatabase,
	LPCWSTR   szTableName,      // name of table in database <case-sensitive>
	LPCWSTR   szFolderPath,     // folder containing archive files
	LPCWSTR   szFileName);      // name of exported table archive file
#ifdef UNICODE
#define MsiDatabaseExport  MsiDatabaseExportW
#else
#define MsiDatabaseExport  MsiDatabaseExportA
#endif // !UNICODE

// Merge two database together, allowing duplicate rows
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseMergeA(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseMerge,    // database to be merged into hDatabase
	LPCSTR   szTableName);      // name of non-persistent table to receive errors
UINT WINAPI MsiDatabaseMergeW(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseMerge,    // database to be merged into hDatabase
	LPCWSTR   szTableName);      // name of non-persistent table to receive errors
#ifdef UNICODE
#define MsiDatabaseMerge  MsiDatabaseMergeW
#else
#define MsiDatabaseMerge  MsiDatabaseMergeA
#endif // !UNICODE

// Generate a transform file of differences between two databases
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseGenerateTransformA(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseReference, // base database to reference changes
	LPCSTR   szTransformFile,   // name of generated transform file
	int       iReserved1,         // reserved argument, not used
	int       iReserved2);        // reserved argument, not used
UINT WINAPI MsiDatabaseGenerateTransformW(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseReference, // base database to reference changes
	LPCWSTR   szTransformFile,   // name of generated transform file
	int       iReserved1,         // reserved argument, not used
	int       iReserved2);        // reserved argument, not used
#ifdef UNICODE
#define MsiDatabaseGenerateTransform  MsiDatabaseGenerateTransformW
#else
#define MsiDatabaseGenerateTransform  MsiDatabaseGenerateTransformA
#endif // !UNICODE

// Apply a transform file containing database difference
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseApplyTransformA(MSIHANDLE hDatabase,
	LPCSTR   szTransformFile,    // name of transform file
	int       iErrorConditions);   // errors to suppress, bits from MSITRANSFORM_ERROR
UINT WINAPI MsiDatabaseApplyTransformW(MSIHANDLE hDatabase,
	LPCWSTR   szTransformFile,    // name of transform file
	int       iErrorConditions);   // errors to suppress, bits from MSITRANSFORM_ERROR
#ifdef UNICODE
#define MsiDatabaseApplyTransform  MsiDatabaseApplyTransformW
#else
#define MsiDatabaseApplyTransform  MsiDatabaseApplyTransformA
#endif // !UNICODE

// Create summary information of existing transform to include validation and error conditions
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiCreateTransformSummaryInfoA(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseReference, // base database to reference changes
	LPCSTR   szTransformFile,    // name of generated transform file
	int       iErrorConditions,    // errors to suppress when applied, from MSITRANSFORM_ERROR
	int       iValidation);        // properties validated when applied, MSITRANSFORM_VALIDATE
UINT WINAPI MsiCreateTransformSummaryInfoW(MSIHANDLE hDatabase,
	MSIHANDLE hDatabaseReference, // base database to reference changes
	LPCWSTR   szTransformFile,    // name of generated transform file
	int       iErrorConditions,    // errors to suppress when applied, from MSITRANSFORM_ERROR
	int       iValidation);        // properties validated when applied, MSITRANSFORM_VALIDATE
#ifdef UNICODE
#define MsiCreateTransformSummaryInfo  MsiCreateTransformSummaryInfoW
#else
#define MsiCreateTransformSummaryInfo  MsiCreateTransformSummaryInfoA
#endif // !UNICODE

// Write out all persistent table data, ignored if database opened read-only
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiDatabaseCommit(MSIHANDLE hDatabase);

// Return the update state of a database

MSIDBSTATE WINAPI MsiGetDatabaseState(MSIHANDLE hDatabase);

// --------------------------------------------------------------------------
// Record object functions
// --------------------------------------------------------------------------