If you use F4 as your hotkey to activate a drop down listbox, then it will limit the functionality of your system, maybe not now, but most likely in the future. Eventually you will have to develop a system where hotkeys are a priority, such as applications where users have to use the keyboard for quick transactions (high volume, network based order entry systems). I developed an application like this and the main requirement was that the users (25 of them), where not allowed to use the mouse at all, since the transaction (order) had to be taken in less than 2 and 1/2 minutes, and that included: finding or creating the customer, loading the product list, completing extra parameters and authorizing a credit card. And yes, the F4 key had code in it that brought up one of the crucial components of the system, therefore it wouldn't have been able to activate a dropdown listbox if I had wanted.

If you say that '{ALT+DNARROW}' didn't work, try "{ALT+DNARROW}" and that should do it as well.

The ALT and DNARROW keys are unprogrammable and you will have an extra key to help you on your app.

HTH

>Finally I know what was my mistake, I used '{F4}' instead of "{F4}"
>Anyway, I have tried '{CTRL+DNARROW}' and '{ALT+DNARROW}', both don't work.
>Thanks for helping me from all of you. :)
>
>>Hi Power Wong
>>
>>I have this in my code * KEYBOARD "{F4}" * and it works.
>>
>>I trid the others ones and didn't work, if you need more help, tell me more about your form.
>>
>>
>>Joao Batista