How to execute callback functions progamatically

[ArashE]

Title says it all.

I want to execute a callback for a Command Button programatically. How is this possible?

[Wolfgang · Accepted solution]

Hi,

this is pretty straightforward: you call the callback function...

For example, if it is defined as int CVICALLBACK QuitCallback ( int panel, int control, int event,void *callbackData, int eventData1,int eventData2 )

you can call the function as QuitCallback ( panel, control, event,callbackData, eventData1,eventData2 ) where you have to use the appropriate panel and control ID. For event, you may provide the type of event you wish to simulate, e.g. EVENT_COMMIT. If you do not need callbackData, eventData1, eventData2 you may specifiy zeros. In summary:

QuitCallback ( panel_ID, control_ID, EVENT_COMMIT, 0, 0, 0 );

Wolfgang

[RobertoBozzolo]

Wolfgang answer is the most direct and indeed it works. Nevertheless, there can be different approaches that has been discussed severl times in this board. I can point you to this discussion and this one that offers alternatives to direct calling of the function.

Additionally, as a minor correction to Wolfgang's words, please note both in direct callback calling and if using CallCtrlCallback () you must pass the panel handle to the function, not the panel ID.

[Wolfgang]

Hi Roberto,

initially I was wondering about your phrase that the suggested solution indeed works... - until I discovered that indeed you have found a noteworthy correction... Thanks.