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</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>A little more info. I have MadExcept operating and it detected “The application seems to be frozen.”<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>77fa15ec ntdll.dll KiUserCallbackDispatcher<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>77e1567d user32.dll PeekMessageA<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>KiUserCallbackDispatcher is where it is hanging.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> delphi-bounces@delphi.org.nz [mailto:delphi-bounces@delphi.org.nz] <b>On Behalf Of </b>Ross Levis<br><b>Sent:</b> Thursday, 28 July 2011 11:09 p.m.<br><b>To:</b> 'NZ Borland Developers Group - Delphi List'<br><b>Subject:</b> [DUG] Why does this hang?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>I’m using the following code inside a wait loop so that most messages are processed except for some mouse and keyboard messages (I think) which I don’t want to be processed. It’s working perfectly here but for another user it hangs indefinitely.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>If PeekMessage(Msg, MainForm.Handle , 0, 0, PM_NOREMOVE) and<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>((Msg.message < 160) or ((Msg.message > 264) and (Msg.message < 512))<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>or (Msg.message > 524)) then<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'> Application.HandleMessage;<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>I use to have an Application.ProcessMessages but this was causing a problem which I can’t remember now, and this code fixed it.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#1F497D'>Cheers.<o:p></o:p></span></p></div></body></html>