ctfiltercbAddFilter
ctfiltercbAddFilter() initializes resources that are used when processing the filter. The function receives the parameters passed to the filter.
Declaration
NINT ctfiltercbAddFilter(pTEXT libname, pTEXT funcname, pTEXT params,
pVOID libhandle, ppVOID pflthandle);
Description
For example, if the parameter string is:
@#mycallback.dll#mycallback_function#my_params
then libname is “mycallback.dll”, funcname is “mycallback_function”, and params is “my_params”.
You can use c-tree API functions to open other c-tree files on that FairCom Server and you can read and write the files. All operations are done in the context of the database connection in which you called the record read operation that called the filter function.
Return Values
Value |
Symbolic Constant |
Explanation |
---|---|---|
0 |
NO_ERROR |
Successful operation. |
See c-treeACE Error Codes for a complete listing of valid c-treeACE error values.
Example
/*
Example Code
*/
See also
EvaluateFilter, LoadFilter, ctfiltercbRemoveFilter, UnloadFilter, SetDataFilter