I am using a form´s Keypress method to monitor the use of function keys which in place must activate the Click method of some buttons, depending on the key pressed by the user. To achieve this I wrote the following case statement:

 
LPARAMETERS nKeyCode, nShiftAltCtrl
do case
   case nKeyCode=keyF2
      thisform.cmdToday.click
   case nKeyCode=keyF5
      thisform.cmdAdd.click
   case nKeyCode=keyF6
      thisform.cmdEdit.click
   case nKeyCode=keyF7
      thisform.cmdDelete.click 
endcase

 
NOTE: keyF1 through keyF10 are predefined constants with the corresponding codes for the function keys.
 
During runtime the form (with the buttons) is loaded, but when I press one of the designated Keys the following
error message appears:
 
  THISFORM can only be used within a method
 
What am I missing and how can I designate actions to keys pressed within an active form ?

Thanks in Advanced or Hope This Helps