DtvLong dal_wdg_get_son (iwf, iwd)

Returns the ident number of the next child widget in the widget stack of a combination widget (nested calls allowed).

Input Parameters Significance
DtvLong iwf Id of the parent widget
DtvLong *iwd Id of the child widget

Output Parameters Significance
DtvLong *iwd Id of the next child widget

Return Code Significance
0 no error
1 no further widget exists
-1 widget is no parent widget

This function allows you to navigate in the widget stack. As opposed to dal_wdg_nxt_son nested calls are allowed and is recommended to be used for DataView version 3.0-07 and higher.

If a zero ID is passed for iwd, the function will return the ID of the first child widget in the stack.