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Forums > Silicon-package-board > Shared code - SKILL

Subject: From CallBack Function
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Newbie
Posts: 26
Online: User is Offline
5/27/2008 12:05 AM  
Hi All,

I have a questions on the CallBack function for forms

-------------------------------------------------------------------------------------
; Here I create my form using the axl skill function  axlFormCreate

MyForm_GlobalHandle = axlFormCreate('MyForm_GlobalHandle        \
                                                               "MyFormName"                    \
                                                                MyFormPosition                  \
                                                               'MyForm_Callback                \
                                                                t                                          \
                                                                nil )


; Later I create the callback function

procedure( MyForm_Callback(TempFormHandle)
  prog( (aaa bbb)
    (printf "aaa = %L\n" aaa)
    (printf "bbb = %L\n" bbb)
  )
--------------------------------------------------------------------------------------


When I load the skill function I get an error message that insist there there are 2 variables for my callback function. The only way I can remove this error is to add a " prog ( (aaa bbb) )"  to  have 2 variables for my callback function.

May I know what are there 2 values.  When I printf is out.. the values are always  'nil'


Thanks,
newbie
Dave Elder
Moderator
Posts: 150
Online: User is Offline
5/27/2008 1:28 PM  
Try calling your form like this:
MyForm_GlobalHandle = axlFormCreate(gensym() "MyFormName" MyFormPosition 'MyForm_Callback t nil)

What is the verbatim error message that you receive?

Cheers, Dave
Dave Elder
Tait Electronics
Newbie
Posts: 26
Online: User is Offline
5/27/2008 7:55 PM  

Hi Dave,

I removed the  prog ( (aaa bbb) ....   from my callback function and changed the axlFormCreate code for 2 cases


1) MyForm_GlobalHandle = axlFormCreate(MyForm_GlobalHandle() "MyFormName" MyFormPosition 'MyForm_Callback t nil)

E- *Error* eval: undefined function - MyForm_GlobalHandle
ERROR

 


2) MyForm_GlobalHandle = axlFormCreate('MyForm_GlobalHandle() "MyFormName" MyFormPosition 'MyForm_Callback t nil)

E- *Error* axlFormCreate: argument #1 should be a symbol (type template = "stlggg") - (MyForm_GlobalHandle)
ERROR




--------------------

Strange thing is that when I tried back the earlier case after removing the prog ( (aaa bbb) ....

MyForm_GlobalHandle = axlFormCreate('MyForm_GlobalHandle "MyFormName" MyFormPosition 'MyForm_Callback t nil)


The earlier error I had is gone.

Anyway Thanks Dave
fxf
Posts: 43
Online: User is Offline
5/28/2008 4:54 AM  
You should follow the example @
/share/pcb/examples/skill/form/basic/axlform.il

look at function IFormTest.

The 1st argument to axlFormCreate should be a global symbol. It is used to store the returned formHandle and you can
use its nil/formhandle value to see if you already have the form opened.
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Forums > Silicon-package-board > Shared code - SKILL > From CallBack Function


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