ListBox control: number of items

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BXM

Joined: 03 Nov 2005
Posts: 26
Location: mars

BXM 08 Nov 2005, 14:07

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.

08 Nov 2005, 14:07

IronFelix

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

IronFelix 08 Nov 2005, 14:28

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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08 Nov 2005, 14:28

BXM

Joined: 03 Nov 2005
Posts: 26
Location: mars

BXM 08 Nov 2005, 15:16

Thank you IronFelix.

08 Nov 2005, 15:16

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