msiquery.h

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#define MsiEvaluateCondition  MsiEvaluateConditionA
#endif // !UNICODE

// Get the installed state and requested action state of a feature
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiGetFeatureStateA(MSIHANDLE hInstall,
	LPCSTR     szFeature,     // feature name within product
	INSTALLSTATE *piInstalled,  // returned current install state
	INSTALLSTATE *piAction);    // action taken during install session
UINT WINAPI MsiGetFeatureStateW(MSIHANDLE hInstall,
	LPCWSTR     szFeature,     // feature name within product
	INSTALLSTATE *piInstalled,  // returned current install state
	INSTALLSTATE *piAction);    // action taken during install session
#ifdef UNICODE
#define MsiGetFeatureState  MsiGetFeatureStateW
#else
#define MsiGetFeatureState  MsiGetFeatureStateA
#endif // !UNICODE

// Request a feature to be set to a specified state
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiSetFeatureStateA(MSIHANDLE hInstall,
	LPCSTR     szFeature,     // feature name within product
	INSTALLSTATE iState);       // requested state for feature
UINT WINAPI MsiSetFeatureStateW(MSIHANDLE hInstall,
	LPCWSTR     szFeature,     // feature name within product
	INSTALLSTATE iState);       // requested state for feature
#ifdef UNICODE
#define MsiSetFeatureState  MsiSetFeatureStateW
#else
#define MsiSetFeatureState  MsiSetFeatureStateA
#endif // !UNICODE

#if (_WIN32_MSI >=  110)

// Set the attribute bits of a specified feature at runtime.
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiSetFeatureAttributesA(MSIHANDLE hInstall,
	LPCSTR     szFeature,     // feature name within product
	DWORD dwAttributes);        // attributes bits to set for this feature
UINT WINAPI MsiSetFeatureAttributesW(MSIHANDLE hInstall,
	LPCWSTR     szFeature,     // feature name within product
	DWORD dwAttributes);        // attributes bits to set for this feature
#ifdef UNICODE
#define MsiSetFeatureAttributes  MsiSetFeatureAttributesW
#else
#define MsiSetFeatureAttributes  MsiSetFeatureAttributesA
#endif // !UNICODE

#endif //(_WIN32_MSI >=  110)

// Get the installed state and requested action state of a component
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiGetComponentStateA(MSIHANDLE hInstall,
	LPCSTR     szComponent,   // component name within product
	INSTALLSTATE *piInstalled,  // returned current install state
	INSTALLSTATE *piAction);    // action taken during install session
UINT WINAPI MsiGetComponentStateW(MSIHANDLE hInstall,
	LPCWSTR     szComponent,   // component name within product
	INSTALLSTATE *piInstalled,  // returned current install state
	INSTALLSTATE *piAction);    // action taken during install session
#ifdef UNICODE
#define MsiGetComponentState  MsiGetComponentStateW
#else
#define MsiGetComponentState  MsiGetComponentStateA
#endif // !UNICODE

// Request a component to be set to a specified state
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiSetComponentStateA(MSIHANDLE hInstall,
	LPCSTR     szComponent,   // component name within product
	INSTALLSTATE iState);       // requested state for component
UINT WINAPI MsiSetComponentStateW(MSIHANDLE hInstall,
	LPCWSTR     szComponent,   // component name within product
	INSTALLSTATE iState);       // requested state for component
#ifdef UNICODE
#define MsiSetComponentState  MsiSetComponentStateW
#else
#define MsiSetComponentState  MsiSetComponentStateA
#endif // !UNICODE

// Return the disk cost for a feature and related features
// Can specify either current feature state or proposed state
// Can specify extent of related features to cost
// Note that adding costs for several features may produce an
// excessively large cost due to shared components and parents.
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT  WINAPI MsiGetFeatureCostA(MSIHANDLE hInstall,
	LPCSTR      szFeature,      // name of feature
	MSICOSTTREE  iCostTree,     // portion of tree to cost
	INSTALLSTATE iState,        // requested state, or INSTALLSTATE_UNKNOWN
	INT          *piCost);      // returned cost, in units of 512 bytes
UINT  WINAPI MsiGetFeatureCostW(MSIHANDLE hInstall,
	LPCWSTR      szFeature,      // name of feature
	MSICOSTTREE  iCostTree,     // portion of tree to cost
	INSTALLSTATE iState,        // requested state, or INSTALLSTATE_UNKNOWN
	INT          *piCost);      // returned cost, in units of 512 bytes
#ifdef UNICODE
#define MsiGetFeatureCost  MsiGetFeatureCostW
#else
#define MsiGetFeatureCost  MsiGetFeatureCostA
#endif // !UNICODE

// Set the install level for a full product installation (not a feature request)
// Setting the value to 0 initialized components and features to the default level
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT  WINAPI MsiSetInstallLevel(MSIHANDLE hInstall,
	int iInstallLevel);

// Get the valid install states for a feature, represented by bit flags
// For each valid install state, a bit is set of value: (1 << INSTALLSTATE)
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT  WINAPI MsiGetFeatureValidStatesA(MSIHANDLE hInstall,
	LPCSTR szFeature,
	DWORD  *dwInstallStates);
UINT  WINAPI MsiGetFeatureValidStatesW(MSIHANDLE hInstall,
	LPCWSTR szFeature,
	DWORD  *dwInstallStates);
#ifdef UNICODE
#define MsiGetFeatureValidStates  MsiGetFeatureValidStatesW
#else
#define MsiGetFeatureValidStates  MsiGetFeatureValidStatesA
#endif // !UNICODE

// Return the full source path for a folder in the Directory table
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiGetSourcePathA(MSIHANDLE hInstall,
	LPCSTR     szFolder,       // folder identifier, primary key into Directory table
	LPSTR      szPathBuf,      // buffer to return full path
	DWORD       *pcchPathBuf);  // in/out buffer character count
UINT WINAPI MsiGetSourcePathW(MSIHANDLE hInstall,
	LPCWSTR     szFolder,       // folder identifier, primary key into Directory table
	LPWSTR      szPathBuf,      // buffer to return full path
	DWORD       *pcchPathBuf);  // in/out buffer character count
#ifdef UNICODE
#define MsiGetSourcePath  MsiGetSourcePathW
#else
#define MsiGetSourcePath  MsiGetSourcePathA
#endif // !UNICODE

// Return the full target path for a folder in the Directory table
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiGetTargetPathA(MSIHANDLE hInstall,
	LPCSTR     szFolder,       // folder identifier, primary key into Directory table
	LPSTR      szPathBuf,      // buffer to return full path
	DWORD       *pcchPathBuf);  // in/out buffer character count
UINT WINAPI MsiGetTargetPathW(MSIHANDLE hInstall,
	LPCWSTR     szFolder,       // folder identifier, primary key into Directory table
	LPWSTR      szPathBuf,      // buffer to return full path
	DWORD       *pcchPathBuf);  // in/out buffer character count
#ifdef UNICODE
#define MsiGetTargetPath  MsiGetTargetPathW
#else
#define MsiGetTargetPath  MsiGetTargetPathA
#endif // !UNICODE

// Set the full target path for a folder in the Directory table
// Execution of this function sets the error record, accessible via MsiGetLastErrorRecord

UINT WINAPI MsiSetTargetPathA(MSIHANDLE hInstall,
	LPCSTR     szFolder,       // folder identifier, primary key into Directory table
	LPCSTR     szFolderPath);  // full path for folder, ending in directory separator
UINT WINAPI MsiSetTargetPathW(MSIHANDLE hInstall,
	LPCWSTR     szFolder,       // folder identifier, primary key into Directory table
	LPCWSTR     szFolderPath);  // full path for folder, ending in directory separator
#ifdef UNICODE
#define MsiSetTargetPath  MsiSetTargetPathW
#else
#define MsiSetTargetPath  MsiSetTargetPathA
#endif // !UNICODE

// Check to see if sufficent disk space is present for the current installation
// Returns ERROR_SUCCESS, ERROR_DISK_FULL, ERROR_INVALID_HANDLE_STATE, or ERROR_INVALID_HANDLE

UINT WINAPI MsiVerifyDiskSpace(MSIHANDLE hInstall);

// --------------------------------------------------------------------------
// Functions for rendering UI dialogs from the database representations.
// Purpose is for product development, not for use during installation.
// --------------------------------------------------------------------------

// Enable UI in preview mode to facilitate authoring of UI dialogs.
// The preview mode will end when the handle is closed.

UINT WINAPI MsiEnableUIPreview(MSIHANDLE hDatabase,
	MSIHANDLE* phPreview);       // returned handle for UI preview capability

// Display any UI dialog as modeless and inactive.
// Supplying a null name will remove any current dialog.

UINT WINAPI MsiPreviewDialogA(MSIHANDLE hPreview,
	LPCSTR szDialogName);      // dialog to display, Dialog table key
UINT WINAPI MsiPreviewDialogW(MSIHANDLE hPreview,
	LPCWSTR szDialogName);      // dialog to display, Dialog table key
#ifdef UNICODE
#define MsiPreviewDialog  MsiPreviewDialogW
#else
#define MsiPreviewDialog  MsiPreviewDialogA
#endif // !UNICODE

// Display a billboard within a host control in the displayed dialog.
// Supplying a null billboard name will remove any billboard displayed.

UINT WINAPI MsiPreviewBillboardA(MSIHANDLE hPreview,
	LPCSTR szControlName,      // name of control that accepts billboards
	LPCSTR szBillboard);       // name of billboard to display
UINT WINAPI MsiPreviewBillboardW(MSIHANDLE hPreview,
	LPCWSTR szControlName,      // name of control that accepts billboards
	LPCWSTR szBillboard);       // name of billboard to display
#ifdef UNICODE
#define MsiPreviewBillboard  MsiPreviewBillboardW
#else
#define MsiPreviewBillboard  MsiPreviewBillboardA
#endif // !UNICODE

// Fetch the next sequential record from the view
// Result is ERROR_SUCCESS if a row is found, and its handle is returned
// else ERROR_NO_DATA if no records remain, and a null handle is returned
// else result is error: ERROR_INVALID_HANDLE_STATE, ERROR_INVALID_HANDLE, ERROR_GEN_FAILURE

// --------------------------------------------------------------------------
// Error handling not associated with any particular object
// --------------------------------------------------------------------------

// Return a record handle to the last function that generated an error record
// Only specified functions will set the error record, or clear it if success
// Field 1 of the record will contain the internal MSI error code
// Other fields will contain data specific to the particular error
// The error record is released internally after this function is executed

MSIHANDLE WINAPI MsiGetLastErrorRecord();  // returns 0 if no cached record

#ifdef __cplusplus
}
#endif

#pragma option pop /*P_O_Pop*/
#endif // _MSIQUERY_H_