ADIC Digital Camera 601355 Rev A 사용자 설명서
API Guide
2-212
API Functions
601355 Rev A
VS_
Expression_
Create
Expression_
Create
VS_Expression_Create
allocates a VolServ API
expression handle. An expression handle is used to pass
expression information to and from VolServ.
expression information to and from VolServ.
An expression handle has three parts: a relation operator (=, >,
<, >=, <=, <>), a connective option (and/or/none), and a
comparison value. A criteria handle uses expression handles to
build the comparison function when using mount-by-selection
criteria.
<, >=, <=, <>), a connective option (and/or/none), and a
comparison value. A criteria handle uses expression handles to
build the comparison function when using mount-by-selection
criteria.
Synopsis
VST_EXPRESSION_HANDLE VS_Expression_Create
( void )
( void )
Arguments
•
handle
= The expression handle to be created.
Return Values
VS_Expression_Create
returns:
•
An expression handle, if one can be allocated.
•
NULL, if the expression handle cannot be allocated. An
appropriate error code is set in
appropriate error code is set in
VSG_Error
.
•
VSE_ERR_OUTOFMEM
- Memory allocation error.
Example
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/****************************************
*********
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*
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* FUNCTION: vst_create_mount_criteria
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*
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* PURPOSE:
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* This function creates the mount
criteria group
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* handle and sets the values in it
according to
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* user input.