API Guide
2-914 API Functions 601355 Rev A
VSCMD_
ModifyMedia
Class
VSCMD_ModifyMediaClass modifies the value of one or
more attributes of a MediaClass group. A MediaClass group
establishes common characteristics for the media it contains.
All MediaClass group attributes must be specified on a Modify
Media Class request, whether the value of an attribute is being
modified or not.
Synopsis VST_BOOLEAN VSCMD_ModifyMediaClass
(VST_COMMAND_HANDLE handle,
“…”,
VSID_ENDFIELD)
Arguments handle = The command handle for this Modify Media
Class command.
“…” = Variable length argument list consisting of pairs of
arguments. Each pair of Arguments consists of a parameter
identifier, followed by the value of the field to use for this
request. The valid parameter identifiers and types for this
function are shown in the following "Parameters"
paragraph.
VSID_ENDFIELD = Required at the end of the variable
length argument list to indicate the end of the list.
Parame ters
Parameter Type Description
VSID_CAPACITY (VST_CAPACITY) The maximum number of media allowed in
this MediaClass group.