Interface ICWFGM Grid Engine. More...

import "GridCom.idl";

Collaboration diagram for ICWFGM_GridEngine:

Public Member Functions
HRESULT	MT_Lock ([in] __int64 layerThread, [in] unsigned short exclusive, [in] unsigned short obtain)

HRESULT	Valid ([in] __int64 layerThread, [in] unsigned __int64 start_time, [in] __int64 duration, [in] unsigned long option, [in, out] SAFEARRAY(unsigned short)*application_count)

HRESULT	GetAttribute ([in] __int64 layerThread, [in] unsigned short option, [out, retval]VARIANT *value)

HRESULT	GetDimensions ([in] __int64 layerThread, [out] unsigned short x_dim, [out]unsigned short y_dim)

HRESULT	GetFuelData ([in] __int64 layerThread, [in] unsigned short _x, [in] unsigned short _y, [in] unsigned __int64 time, [out, retval]ICWFGM_Fuel **fuel)

HRESULT	GetFuelIndexData ([in] __int64 layerThread, [in] unsigned short x, [in] unsigned short y, [in] unsigned __int64 time, [out, retval]unsigned char *fuel_index)

HRESULT	GetElevationData ([in] __int64 layerThread, [in] unsigned short x, [in] unsigned short y, [in] short allow_defaults_returned, [out]double elevation, [out] double slope_factor, [out] double *slope_azimuth)

HRESULT	GetAttributeData ([in] __int64 layerThread, [in] unsigned short x, [in] unsigned short y, [in] unsigned __int64 time, [in] unsigned short option, [out, retval] VARIANT *attribute)

HRESULT	GetWeatherData ([in] __int64 layerThread, [in] unsigned short x, [in] unsigned short y, [in] unsigned __int64 time, [in]unsigned long interpolate_method, [out]IWXData wx, [out]IFWIData ifwi, [out]DFWIData *dfwi)

HRESULT	GetFuelDataArray ([in] __int64 layerThread, [in] unsigned short _x_min, [in] unsigned short _y_min, [in] unsigned short _x_max, [in]unsigned short _y_max,[in]unsigned __int64 time, [in, out] SAFEARRAY(ICWFGM_Fuel )fuel)

HRESULT	GetFuelIndexDataArray ([in] __int64 layerThread, [in]unsigned short _x_min, [in]unsigned short _y_min, [in]unsigned short _x_max, [in]unsigned short _y_max, [in]unsigned __int64 time, [in, out] SAFEARRAY(unsigned char)*fuel_index)

HRESULT	GetElevationDataArray ([in] __int64 layerThread, [in]unsigned short x_min, [in]unsigned short y_min, [in]unsigned short x_max, [in]unsigned short y_max, [in]short allow_defaults_returned, [in, out] SAFEARRAY(double)elevation, [in, out] SAFEARRAY(double)slope_factor, [in, out] SAFEARRAY(double)*slope_azimuth)

HRESULT	GetWeatherDataArray ([in] __int64 layerThread, [in]unsigned short x_min, [in]unsigned short y_min, [in]unsigned short x_max, [in] unsigned short y_max, [in]unsigned __int64 time, [in]unsigned long interpolate_method, [in, out] SAFEARRAY(IWXData)wx, [in, out] SAFEARRAY(IFWIData)ifwi, [in, out] SAFEARRAY(DFWIData)*dfwi)

HRESULT	GetAttributeDataArray ([in] __int64 layerThread, [in]unsigned short x_min, [in]unsigned short y_min, [in]unsigned short x_max, [in]unsigned short y_max, [in] unsigned __int64 time, [in] unsigned short option, [in, out] SAFEARRAY(VARIANT)*attribute)

HRESULT	GetEventTime ([in] __int64 layerThread, [in] unsigned long flags, [in] unsigned __int64 from_time, [out, retval] unsigned __int64 *next_event)

HRESULT	PreCalculationEvent ([in] __int64 layerThread, [in] unsigned __int64 time, [in] unsigned long mode)

HRESULT	PostCalculationEvent ([in] __int64 layerThread, [in] unsigned __int64 time, [in] unsigned long mode)

HRESULT	GetGridEngine ([in] __int64 layerThread, [out, retval] ICWFGM_GridEngine **pVal)

HRESULT	PutGridEngine ([in] __int64 layerThread, [in] ICWFGM_GridEngine *newVal)

Properties
ICWFGM_LayerManager	LayerManager `[get, set]`

VARIANT	UserData `[get, set]`

Detailed Description

Interface ICWFGM Grid Engine.

    Grid data is provided to the simulation engine by the client application.  The simulation engine defines the interface it will use to obtain the grid data (via this interface).  The simulation engine is not concerned with the kind of object that implements this interface, or the implementation of the object.  It may represent the original CWFGM grid data, a CWFGM grid filter object or some other object a programmer has built to access a specialized data set.

The simulation engine does not define any object that implements this interface. The simulation engine only defines the interface. Objects that implement this interface should import this interface definition. The object implementing this interface is to be handled entirely by the client application (such as CWFGM). Methods to import grid data or manage grid filters are not found on this COM interface, as the simulation engine has no need for these methods. This design takes advantage of object-oriented methodologies to simplify both the design of the simulation engine, and the integration of the simulation engine into another application. For example, to provide data from a G.I.S. directly to the simulation engine, the programmer only needs to define an object that implements this interface and communicates with the G.I.S. A variety of objects that implement this interface already exist.

There are no methods on the simulation engine interface to add or remove FBP fuel types. This is because the simulation engine is not concerned with managing fuel types, or the look-up tables used to associate a fuel type with a grid map entry. These tasks are left entirely to the client application. This works because the interface method GetFuelData()only returns handles to FBP fuel types after the client has finished resolving its own look-up tables and grid filters. Similarly, there are no methods on the simulation engine interface to add or remove firebreaks or firelines. Firebreaks and firelines are represented by objects supporting the FBP fuel type interface. The object implementing the Grid COM interface locates firebreaks, etc. on the fuel array and returns the correct handles via the GetFuelData() method. Any temporal aspect of these objects is the responsibility of the client application. The IDL of the grid object required by the simulation engine is given below.

Member Function Documentation

ICWFGM_GridEngine::GetAttribute	(	[in] __int64	layerThread,
		[in] unsigned short	option,
		[out,retval] VARIANT *	value
	)

Polymorphic. This method returns a specified value obtained from the projection file or grid data. These values are useful for importing vector data, locating the plot on the planet, etc. and are not specific to any particular location within the grid.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
option	The attribute of interest.
value	Location for the retrieved value to be placed.

ICWFGM_GridEngine::GetAttributeData	(	[in] __int64	layerThread,
		[in] unsigned short	x,
		[in] unsigned short	y,
		[in] unsigned __int64	time,
		[in] unsigned short	option,
		[out,retval] VARIANT *	attribute
	)

Polymorphic. Given a (X,Y) location in the the grid and a GMT time since January 1st, 1600, returns an attribute value keyed on 'option'. Note that only specific objects implementing this interface can be expected to return valid values from this function call.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x	X grid location.
y	Y grid location.
time	A GMT time provided as seconds since January 1st, 1600.
option	Option information. Currently expected values are: `FUELCOM_ATTRIBUTE_PC` Percent conifer grid attribute (optional). `FUELCOM_ATTRIBUTE_PDF` Percent dead fir grid attribute (optional). `FUELCOM_ATTRIBUTE_CURINGDEGREE` Grass curing degree grid attribute (optional). `FUELCOM_ATTRIBUTE_CBH` Crown base height grid attribute (optional). `FUELCOM_ATTRIBUTE_TREE_HEIGHT` Tree height grid attribute (optional). All other values are reserved for future use.
attribute	Attirbute data

ICWFGM_GridEngine::GetAttributeDataArray	(	[in] __int64	layerThread,
		[in] unsigned short	x_min,
		[in] unsigned short	y_min,
		[in] unsigned short	x_max,
		[in] unsigned short	y_max,
		[in] unsigned __int64	time,
		[in] unsigned short	option,
		[in,out] SAFEARRAY(VARIANT)*	attribute
	)

Polymorphic. Given a ('X_min','Y_min')->('X_max','Y_max') range of locations (inclusive) in the grid and a GMT time since January 1st, 1600, returns an attribute value keyed on 'option'. Note that only specific objects implementing this interface can be expected to return valid values from this function call. The 2D array is expected to begin at (0,0) and contain enough room for both dimensions of requested data.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x_min	Minimum value (inclusive) on x-axis.
y_min	Minimum value (inclusive) on y-axis.
x_max	Maximum value (inclusive) on x-axis.
y_max	Maximum value (inclusive) on y-axis.
time	A GMT time provided as seconds since January 1st, 1600.
option	Option information. Currently expected values are: `FUELCOM_ATTRIBUTE_PC` Percent conifer grid attribute (optional). `FUELCOM_ATTRIBUTE_PDF` Percent dead fir grid attribute (optional). `FUELCOM_ATTRIBUTE_CURINGDEGREE` Grass curing degree grid attribute (optional). `FUELCOM_ATTRIBUTE_CBH` Crown base height grid attribute (optional). `FUELCOM_ATTRIBUTE_TREE_HEIGHT` Tree height grid attribute (optional). All other values are reserved for future use.
attribute	Data array

ICWFGM_GridEngine::GetDimensions	(	[in] __int64	layerThread,
		[out] unsigned short *	x_dim,
		[out] unsigned short *	y_dim
	)

This method assigns 'x_dim' and 'y_dim' to the size of the grid, in grid units.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x_dim	x dimension of the grid.
y_dim	y dimension of the grid.

ICWFGM_GridEngine::GetElevationData	(	[in] __int64	layerThread,
		[in] unsigned short	x,
		[in] unsigned short	y,
		[in] short	allow_defaults_returned,
		[out] double *	elevation,
		[out] double *	slope_factor,
		[out] double *	slope_azimuth
	)

Given a (X,Y) location in the grid, returns elevation information.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x	x grid location.
y	y grid location.
allow_defaults_returned	Flag for allowing defaults to be returned
elevation	Elevation (m) of the requested location.
slope_factor	Percentage ground slope specified as a decimal value (0 - 1)
slope_azimuth	Direction of up-slope, Cartesian radians.

ICWFGM_GridEngine::GetElevationDataArray	(	[in] __int64	layerThread,
		[in] unsigned short	x_min,
		[in] unsigned short	y_min,
		[in] unsigned short	x_max,
		[in] unsigned short	y_max,
		[in] short	allow_defaults_returned,
		[in,out] SAFEARRAY(double)*	elevation,
		[in,out] SAFEARRAY(double)*	slope_factor,
		[in,out] SAFEARRAY(double)*	slope_azimuth
	)

Given a ('X_min','Y_min')->('X_max','Y_max') range of locations (inclusive) in the grid, this method fills the provided arrays with elevation data. This routine uses the array provided by the client rather than returning allocated memory in case the client wants to make successive requests - this will avoid repeated memory allocations and de-allocations. The 2D array is expected to begin at (0,0) and contain enough room for both dimensions of requested data.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x_min	Minimum value (inclusive) on x-axis.
y_min	Minimum value (inclusive) on y-axis.
x_max	Maximum value (inclusive) on x-axis.
y_max	Maximum value (inclusive) on y-axis.
allow_defaults_returned	Flag for allowing defaults to be returned
elevation	Array of elevations (to fill in).
slope_factor	Array of slope factors (to fill in).
slope_azimuth	Array of slope azimuths (to fill in).

ICWFGM_GridEngine::GetEventTime	(	[in] __int64	layerThread,
		[in] unsigned long	flags,
		[in] unsigned __int64	from_time,
		[out,retval] unsigned __int64 *	next_event
	)

This method allows the simulation engine to scan forward or back (based on flags) from a given time for the next time-based event. This is important for the event-driven nature of the simulation.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
flags	Event related flags. Currently valid values are: `CWFGM_GETEVENTTIME_FLAG_SEARCH_FORWARD` search forward in time `CWFGM_GETEVENTTIME_FLAG_SEARCH_BACKWARD` search backwards in time `CWFGM_GETEVENTTIME_QUERY_PRIMARY_WX_STREAM` only the primary weather stream may respond `CWFGM_GETEVENTTIME_QUERY_ANY_WX_STREAM` only weather streams may respond All other values are reserved for future use.
from_time	A GMT time provided as seconds since January 1st, 1600.
next_event	A GMT time provided as seconds since January 1st, 1600, representing the time for the next event, based on 'flags'.

ICWFGM_GridEngine::GetFuelData	(	[in] __int64	layerThread,
		[in] unsigned short	_x,
		[in] unsigned short	_y,
		[in] unsigned __int64	time,
		[out,retval] ICWFGM_Fuel **	fuel
	)

Given a (X,Y) location in the grid and a GMT time provided as seconds since January 1st, 1600), returns a handle to a CWFGM Fuel.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
_x	X grid location.
_y	Y grid location.
time	A GMT time provided as seconds since January 1st, 1600.
fuel	A CWGFM fuel.

ICWFGM_GridEngine::GetFuelDataArray	(	[in] __int64	layerThread,
		[in] unsigned short	_x_min,
		[in] unsigned short	_y_min,
		[in] unsigned short	_x_max,
		[in] unsigned short	_y_max,
		[in] unsigned __int64	time,
		[in,out] SAFEARRAY(ICWFGM_Fuel )	fuel
	)

Given a ('X_min','Y_min')->('X_max','Y_max') range of locations (inclusive) in the grid, and a GMT time (seconds since January 1st, 1600), this method fills the provided array with handles to a CWFGM Fuels. This routine uses the array provided by the client rather than returning allocated memory in case the client wants to make successive requests - this will avoid repeated memory allocations and deallocations. The 2D array is expected to begin at (0,0) and contain enough room for both dimensions of requested data. When using this routine to retrieve 2000 points at a time, it is approximately 75% faster than successive GetFuelData() calls.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
_x_min	Minimum value (inclusive) on x-axis.
_y_min	Minimum value (inclusive) on y-axis.
_x_max	Maximum value (inclusive) on x-axis.
_y_max	Maximum value (inclusive) on y-axis.
time	A GMT time provided as seconds since January 1st, 1600.
fuel	Array of CWFGM fuels (to fill in).

ICWFGM_GridEngine::GetFuelIndexData	(	[in] __int64	layerThread,
		[in] unsigned short	x,
		[in] unsigned short	y,
		[in] unsigned __int64	time,
		[out,retval] unsigned char *	fuel_index
	)

Given a (X,Y) location in the grid and a GMT time since January 1st, 1600, returns an internal index of a CWFGM Fuel. The fuel can then be determined by a call to the attached FuelMap object. This method is not used by the simulation engine, but instead is intended for filters that need core data from the grid.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x	X grid location.
y	Y grid location.
time	A GMT time provided as seconds since January 1st, 1600.
fuel_index	Index of a CWFGM fuel.

ICWFGM_GridEngine::GetFuelIndexDataArray	(	[in] __int64	layerThread,
		[in] unsigned short	_x_min,
		[in] unsigned short	_y_min,
		[in] unsigned short	_x_max,
		[in] unsigned short	_y_max,
		[in] unsigned __int64	time,
		[in,out] SAFEARRAY(unsigned char)*	fuel_index
	)

Given a ('X_min','Y_min')->('X_max','Y_max') range of locations (inclusive) in the grid, and a GMT time (count of seconds since January 1st, 1600), this method fills the provided array with internal indices of CWFGM Fuels. The fuels can then be determined by calls to the attached FuelMap object. This method is not used by the simulation engine, but instead is intended for filters that need core data from the grid. This routine uses the array provided by the client rather than returning allocated memory in case the client wants to make successive requests - this will avoid repeated memory allocations and deallocations. The 2D array is expected to begin at (0,0) and contain enough room for both dimensions of requested data. When using this routine to retrieve 2000 points at a time, it is approximately 75% faster than successive GetFuelData() calls.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
_x_min	Minimum value (inclusive) on x-axis.
_y_min	Minimum value (inclusive) on y-axis.
_x_max	Maximum value (inclusive) on x-axis.
_y_max	Maximum value (inclusive) on y-axis.
time	A GMT time provided as seconds since January 1st, 1600.
fuel_index	Array of indices of CWFGM fuels (to fill in).

ICWFGM_GridEngine::GetGridEngine	(	[in] __int64	layerThread,
		[out, retval] ICWFGM_GridEngine **	pVal
	)

This method retrieves the next lower GIS layer for layerThread, used to determine the stacking and order of objects associated to a scenario.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
pVal	Pointer to Grid Engine

ICWFGM_GridEngine::GetWeatherData	(	[in] __int64	layerThread,
		[in] unsigned short	x,
		[in] unsigned short	y,
		[in] unsigned __int64	time,
		[in] unsigned long	interpolate_method,
		[out] IWXData *	wx,
		[out] IFWIData *	ifwi,
		[out] DFWIData *	dfwi
	)

Given a (X,Y) location in the grid, returns weather information. Note that only specific objects implementing this interface can be expected to return valid values from this function call.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x	x grid location.
y	y grid location.
time	A GMT time provided as seconds since January 1st, 1600.
interpolate_method	Method of interpolation.
wx	Weather information.
ifwi	IFWI Information.
dfwi	DFWI Information.

ICWFGM_GridEngine::GetWeatherDataArray	(	[in] __int64	layerThread,
		[in] unsigned short	x_min,
		[in] unsigned short	y_min,
		[in] unsigned short	x_max,
		[in] unsigned short	y_max,
		[in] unsigned __int64	time,
		[in] unsigned long	interpolate_method,
		[in,out] SAFEARRAY(IWXData)*	wx,
		[in,out] SAFEARRAY(IFWIData)*	ifwi,
		[in,out] SAFEARRAY(DFWIData)*	dfwi
	)

Given a ('X_min','Y_min')->('X_max','Y_max') range of locations (inclusive) in the grid, this method fills the provided arrays with weather data. This routine uses the array provided by the client rather than returning allocated memory in case the client wants to make successive requests - this will avoid repeated memory allocations and de-allocations. The 2D arrays are expected to begin at (0,0) and contain enough room for both dimensions of requested data.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
x_min	Minimum value (inclusive) on x-axis.
y_min	Minimum value (inclusive) on y-axis.
x_max	Maximum value (inclusive) on x-axis.
y_max	Maximum value (inclusive) on y-axis.
time	A GMT time provided as seconds since January 1st, 1600.
interpolate_method	Method of interpolation.
wx	Array of Weather information.
ifwi	Array of Instantaneous FWI codes.
dfwi	Array of Daily FWI codes.

ICWFGM_GridEngine::MT_Lock	(	[in] __int64	layerThread,
		[in] unsigned short	exclusive,
		[in] unsigned short	obtain
	)

Changes the state of the object with respect to access rights. When the object is used by an active simulation, it must not be modified. When the object is somehow modified, it must be done so in an atomic action to prevent concerns with arising from multithreading. Note that these locks are primarily needed to ensure that data contributing during a simulation is not modified while the simulation is executing.

All routines in the ICWFGM_GridEngine interface are necessarily NOT multithreading safe (for performance) but other interfaces for a given COM object implementing this interface must be by specification.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
exclusive	TRUE if the requester wants a write lock, false for read/shared access
obtain	TRUE to obtain the lock, FALSE to release the lock. If this is FALSE, then the 'exclusive' parameter must match the initial call used to obtain the lock.

ICWFGM_GridEngine::PostCalculationEvent	(	[in] __int64	layerThread,
		[in] unsigned __int64	time,
		[in] unsigned long	mode
	)

This method is invoked after all calculations are performed in the simulation, and after calculations are performed on a given simulation time step. It's intended to perform post-calculation clean-up, etc.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
time	A GMT time provided as seconds since January 1st, 1600.
mode	Calculation mode: 0 represents start of simulation, 1 represents start of a specific time step

ICWFGM_GridEngine::PreCalculationEvent	(	[in] __int64	layerThread,
		[in] unsigned __int64	time,
		[in] unsigned long	mode
	)

This method is invoked before any calculations are performed in the simulation, and before calculations are performed on a given simulation time step. It's intended to perform pre-calculation caching events, etc.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
time	A GMT time provided as seconds since January 1st, 1600.
mode	Calculation mode: 0 represents start of simulation, 1 represents start of a specific time step

ICWFGM_GridEngine::PutGridEngine	(	[in] __int64	layerThread,
		[in] ICWFGM_GridEngine *	newVal
	)

This method sets the next lower GIS layer for layerThread, used to determine the stacking and order of objects associated to a scenario.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
newVal	Pointer to Grid Engine

ICWFGM_GridEngine::Valid	(	[in] __int64	layerThread,
		[in] unsigned __int64	start_time,
		[in] __int64	duration,
		[in] unsigned long	option,
		[in,out] SAFEARRAY(unsigned short)*	application_count
	)

This method returns whether this grid object has been initialized,and whether it contains all data necessary for a simulation (including weather data) for the simulation time identified by start_time and duration. If start_time and duration are both 0, then this method only returns whether the object is initialized. The invoked object is allowed to perform a variety of other operations and method calls to initialize and validate, and possibly cache data.

Parameters

layerThread	Handle for scenario layering/stack access, allocated from an ICWFGM_LayerManager COM object. Needed. It is designed to allow nested layering analogous to the GIS layers.
start_time	Start time of the simulation. A GMT time provided as seconds since January 1st, 1600.
duration	Duration of the simulation, in seconds.
option	Determines type of Valid request.
application_count	Optional (dependent on option). Array of counts for how often a particular type of grid occurs in the set of ICWFGM_GridEngine objects associated with a scenario.

Property Documentation

Property ICWFGM_GridEngine::LayerManager

getsetproperty

This property is must be set before any calls to GetGridEngine or PutGridEngine. Additionally, this property should be considered write-once. This value should be set to the ICWFGM_LayerManager object which any layerThread assigned to this object will have been allocated from.

Parameters

pVal	value of LayerManager
newVal	value for LayerManager

Property ICWFGM_GridEngine::UserData

getsetproperty

This property is unused by this object, and is available for exclusive use by the client code. It is a VARIANT value to ensure that the client code can store a pointer value (if it chooses) for use in manual subclassing this object. This value is not loaded or saved during serialization operations, and it is the responsibility of the client code to manage any value or object stored here. Access to this property is not thread-safe.

Parameters

pVal	value of UserData
newVal	replacement value for UserData

COM Programmer Documentation

Public Member Functions

Properties

Detailed Description

Member Function Documentation

Property Documentation