GUIX How do I create a prompt widget dynamically in code and get widget id automatically

Question

Hi,

I have the code that fetches everything from the database and delivers it to the S7G2.

What I need help with is building the list in GUIX dynamically, I have managed to figure out how to create a prompt in code and attach it to the list.

The issue I am experiencing now is how to create the unique ID in GUIX as the id in the database would not work for GUIX widget ID, I use the database ID as "userdata" on the prompt widget to know which option was selected, but I cannot get the event handler to to identify which widget was "clicked" so that I can extract the "userdata".

So what I need is some direction on how to get the clicked event and extract the prompt "userdata", I know how to set a eventhandler when creating the prompt and it triggers, but I get no "clicked" event from the GX_SIGNAL() as I don't have a unique ID, I do pass the event on to the gx_widget_event_process() to allow further processing of the event in other handlers I have.

Hope this gives more clarity?

Regards,

Ronald Hare

Accepted Answer

Are you utilizing GUIX-defined list types like GX_VERTICAL_LIST or GX_HORIZONTAL_LIST? If so, make sure to set an event handler for parent of the list widget and handle the GX_EVENT_LIST_SELECT event as shown below:

INT selected_item_index;

switch (event_ptr->gx_event_type)
{
    case GX_SIGNAL(LIST_ID, GX_EVENT_LIST_SELECT):
        selected_item_index = event_ptr->gx_event_payload.gx_event_longdata;
        break;
    // Other cases and event handling can be added here if needed
    ...
}

To receive click events for prompt widgets, you should set a unique widget ID for each prompt widget and then set an event handler for the parent of the prompt widgets. This way, you can handle the GX_SIGNAL(PROMPT_WIDGET_ID, GX_EVENT_CLICKED) event effectively.
For now, GUIX does not provide an API to retrieve user data values. However, you can reference the widget structure members directly to access the user data, like this: widget->gx_widget_user_data.

Share via

GUIX How do I create a prompt widget dynamically in code and get widget id automatically

0 additional answers

Your answer