LWIACAPABILITY

typedef struct _ LWIACAPABILITY
{
   L_UINT  uStructSize;
   L_UINT  uPropertyID;
   L_TCHAR szPropertyName[MAX_PATH];
   L_UINT  uVariableType;
   L_UINT  uPropertyAttributes;
   pLWIACAPABILITYVALUES  pCapabilityValues;
} LWIACAPABILITY,   * pLWIACAPABILITY;

The LWIACAPABILITY structure provides information about each enumerated WIA capability.

Member	Description
uStructSize	Size of this structure in bytes, for versioning. Use the sizeof() macro to calculate this value.
uPropertyID	The enumerated property ID.
szPropertyName	The name of the enumerated property.
uVariableType	The type of the enumerated property the user can use when do the casting for the received property value.
uPropertyAttributes	The enumerated property attributes like the property value type (Flag value, List value or Range value), the property access (Read, Write, Read/Write), The following constants are valid property attributes:
	Value	Meaning
	WIA_PROP_CACHEABLE	The device can cache the property's value.
	WIA_PROP_FLAG	The property has a list of legal flag values. Flag values are combined using a bitwise OR operation.
	WIA_PROP_LIST	The property has a list of legal values.
	WIA_PROP_NONE	The property does not have any valid values associated with it.
	WIA_PROP_RANGE	The property has a range of valid values.
	WIA_PROP_READ	The application can read the property's value.
	WIA_PROP_RW	The application can read and write the property's value.
	WIA_PROP_WRITE	The application can write the property's value.
pCapabilityValues	Pointer to the values structure that contains the enumerated capability values.

Comments

This feature is available in LEADTOOLS version 16 or higher.

pLWIACAPABILITY is a pointer to an LWIACAPABILITY structure. If the function parameter type is LWIACAPABILITY, you can declare an LWIACAPABILITY variable, update the structure's fields, and pass the variable's address in the parameter. Declaring a pLWIACAPABILITY variable is necessary only if your program requires a pointer.

LWIACAPABILITY is used with the L_WiaEnumCapabilitiesLWia::EnumCapabilities function.