Rif.: cvi timer help

[chris_chua]

hi all

can anyone help

task-to start my program inside the timer with the start of Start_buttom press.  

i have a question, i have a CVICALLBACK: call "Start_button" how can i put the timer control inside this function? 

my timer can be found on CVI software under ,,,,,, Create>>Timer>>Timer

is there a advice or simple program/note for my reference?

Thanks alots 

[RobertoBozzolo]

If you want to activate the timer inside a start button callback you can manipulate the enabled state of the timer using ATTR_ENABLED attribute with SetCtrlAttribute

If this is not suitable for your situation, please explain in more details your application schema and the expected behaviour.

[chris_chua]

i think this is what i want, but can you show me a simple porgram on how to write? cos i new to CVI Thanks   

[RobertoBozzolo]

Well, supposing you have a start button and a timer control on the same panel, inside the button callback you can do the following:

int CVICALLBACK StartCallback (int panel, int control, int event,
		void *callbackData, int eventData1, int eventData2)
{
	if (event != EVENT_COMMIT) return 0;

	SetCtrlAttribute (panel, PANEL_TIMER, ATTR_ENABLED, 1);

	return 0;
}

If you are new to CVI you should consider spending some time through Getting Started manual and the exercises included in it, or at least stadying the examples supplied with the product: this will save you some headaches as you gradually get more involved in programming.