Input Parameters | Significance |
DtvLong idm | mask Id |
char *joi | join string |
Output Parameters | Significance |
no | - |
Return Code | Significance |
0 | no error |
1 | zero pointer |
Specifying a join condition allows you to display field contents from other data base tables in a mask. However, you cannot edit these fields contents and you should care for a write protection in the mask. In case of a query, the defined join string is automatically appended to the one generated by DataView. If you have set a join string, you will have to call dal_iwf_def_cns afterwards.
For the structure of the join string the following rules apply:
The function automatically invoke any set mask listener function.