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Index > Windows > ListBox control: number of items

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BXM



Joined: 03 Nov 2005
Posts: 26
Location: mars
BXM
Hi, a simple question.

Pass LB_GETCOUNT as parameter to the control, ok. But then, what is in eax at this point? What variables have to be declared? Is there any conversion to do in order to show the number with say a messagebox?
What about exceptions handling if the list is empty?

Code:
        invoke  SendDlgItemMessage, [hwnd],ID_LISTBOX,LB_GETCOUNT,0,0          
        ;mov     itmcount,eax
        invoke  MessageBox,0,itmcount,msgboxtitle,MB_OK+MB_ICONINFORMATION    

Thanks in advance.
Post 08 Nov 2005, 14:07
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IronFelix



Joined: 09 Dec 2004
Posts: 141
Location: Russia, Murmansk region
IronFelix
Try this:

Code:

 buf  rb  32
 stFormat  db "%u",0

 invoke  SendDlgItemMessage, [hwnd],ID_LISTBOX,LB_GETCOUNT,0,0           
 cinvoke wsprintf,buf,stFormat,eax
 invoke  MessageBox,0,buf,msgboxtitle,MB_OK+MB_ICONINFORMATION

    


Regards

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Post 08 Nov 2005, 14:28
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BXM



Joined: 03 Nov 2005
Posts: 26
Location: mars
BXM
Thank you IronFelix.
Post 08 Nov 2005, 15:16
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