Reminders of understanding

I've been with CVI programming since the days of BASE in the 1990s, went to C-base code but have always programmed of up and down and never used reminders much. I want to change that. So here I am with my first serious attempt and something is not just make sense.

I have a child Panel (SetupPanel as a handle) with a hot digital control. I want the user to be able to type a number and press ENTER to enter the value and return to the main loop. I know recall events are generated with the entry number, so I have an if statement to get the value of control when he sees a VAL_ENTER_VKEY event. The code runs correctly, but the new value the user has entered into the digital control is not being caught and stored in the variable referenced after executing the GetCtrlAttribute function successfully (returns a 0 indicates success).

The GetCtrlAttribute same function with the same variables works very well elsewhere in the code, when it is called, it is only in the block of reminder where it is not catch the value of the current digital control. It has to be something fundamental, I do not understand about the use of reminders.

int MaxDSCallback (int command face, int, int event, void * callbackData, int eventData1, int eventData2)
{
If (eventData1 == VAL_ENTER_VKEY) {}
RET = GetCtrlAttribute (SetupPanel, Setup_AxisMax, ATTR_CTRL_VAL, &ddum);)
}
Return (0);
} / / MaxDSCallback

After execution, ret = 0, but the value of ddum is what it was before that the user has replaced the control, not the value of newly. Tried a ProcessSystemEvents() after the GetCtrlAttribute, no joy.

Can someone explain to me what is happening here?

Now, I am even more confused... Have you tried the following:

int MaxDSCallback (int command face, int, int event, void * callbackData, int eventData1, int eventData2)
{
If (event == EVENT_VAL_CHANGED) {}
RET = GetCtrlAttribute (SetupPanel, Setup_AxisMax, ATTR_CTRL_VAL, ddum &);)
}
Return (0);
}

This should return only after you press the Enter key, not after each keystroke...

Tags: NI Software

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