API Guide
2-226 API Functions 601355 Rev A
Return Values VS_Expression_GetFields returns:
•VSE_TRUE - Successful execution.
•VSE_FALSE - API failure - The appropriate error code is
set in VSG_Error.
•VSE_ERR_BADFIELD - An invalid parameter was
specified.
•VSE_ERR_BADHANDLE - Specified handle was not an
error handle.
•VSE_ERR_NULLHANDLE - Specified handle was a null
pointer.
Example 1 /****************************************
*********
2*
3 * FUNCTION: vst_print_criteria_group
4*
5 * PURPOSE:
6 * This function prints out the
information stored in
7 * a criteria group handle.
8*
VSID_CONNECTIVE_OP
(VST_CONNECTIVE_OP *) Pointer to the connective operation between
two expressions. Valid
VS_Expression_GetFields values are
enumerated in the vs_types.h file. The last
expression in a criteria must have the connect
operator set to none.
VSID_MEDIA_STAT_VALUE
(VST_MEDIA_STAT_VALUE) Value for comparison. All values are
compared as strings. If numbers are needed,
they must be left filled with zeros within the
string.
Parameter Type Description