BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Minimize/Package Delphi BUG          BorlandTalk.com Forum Index -> Delphi (General) View previous topic :: View next topic   Author Message stuart Guest Posted: Fri Aug 29, 2003 1:07 pm    Post subject: Minimize/Package Delphi BUG Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Thanks in advance for any help. Back to top Michael Brown Guest Posted: Fri Aug 29, 2003 1:29 pm    Post subject: Re: Minimize/Package Delphi BUG "stuart" <nospam (AT) here (DOT) com> wrote Quote: Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Seems to be fine in D7 (no updates). Certainly seems wierd that a DLL without the VCL could affect the VCL in the main application. Try running Spy++ (if you have it) and see what's changing window-wise. Could help you narrow it down a bit further. -- Michael Brown www.emboss.co.nz : OOS/RSI software and more Add michael@ to emboss.co.nz - My inbox is always open Back to top stuart Guest Posted: Fri Aug 29, 2003 2:35 pm    Post subject: Re: Minimize/Package Delphi BUG On Sat, 30 Aug 2003 01:29:34 +1200, "Michael Brown" <see (AT) signature (DOT) below> wrote: Quote: Seems to be fine in D7 (no updates). Certainly seems wierd that a DLL without the VCL could affect the VCL in the main application. Try running Spy++ (if you have it) and see what's changing window-wise. Could help you narrow it down a bit further. -- Michael Brown www.emboss.co.nz : OOS/RSI software and more Add michael@ to emboss.co.nz - My inbox is always open Thanks for the info, still no luck. After having a quick looksee with Spy++ Ive noticed one thing: when the minimize button is pressed on the working at this message is sent: "WM_ACTIVATE fActive:WA_INACTIVE fMinimized:False hwndPrevious:006000AE" where as on the faulty one this message is: "WM_ACTIVATE fActive:WA_INACTIVE fMinimized:False hwndPrevious:(null)" the hwndPrevious has become NULL ... Back to top stuart Guest Posted: Mon Sep 01, 2003 9:50 am    Post subject: Re: Minimize/Package Delphi BUG On Fri, 29 Aug 2003 13:07:46 GMT, [email]nospam (AT) here (DOT) com[/email] (stuart) wrote: Quote: Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Thanks in advance for any help. Oh one more important bit of information I failed to include is that this error only occures when then DLL unit "uses forms". Back to top Michael Brown Guest Posted: Mon Sep 01, 2003 11:50 pm    Post subject: Re: Minimize/Package Delphi BUG "stuart" <nospam (AT) here (DOT) com> wrote Quote: On Fri, 29 Aug 2003 13:07:46 GMT, [email]nospam (AT) here (DOT) com[/email] (stuart) wrote: Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Thanks in advance for any help. Oh one more important bit of information I failed to include is that this error only occures when then DLL unit "uses forms". Ah, that could change things ... I'll try that and report back :) -- Michael Brown www.emboss.co.nz : OOS/RSI software and more Add michael@ to emboss.co.nz - My inbox is always open Back to top llllllllllllllllll Guest Posted: Wed Sep 03, 2003 10:56 pm    Post subject: Re: Minimize/Package Delphi BUG Hi, Stuart You have to get the handle of the main form of your application and pass it into the DLL. Then, set Application.Handle = YourAppsHandle; and there you go, should be fine now. Regards, Louis stuart wrote: Quote: Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Thanks in advance for any help. Back to top stuart Guest Posted: Thu Sep 04, 2003 10:25 am    Post subject: Re: Minimize/Package Delphi BUG YAY! thanks mate, thats fixed the nasty little "feature". thanks for the help. On Wed, 03 Sep 2003 17:56:11 -0500, llllllllllllllllll <lllllllllllllll (AT) lllll (DOT) lll> wrote: Quote: Hi, Stuart You have to get the handle of the main form of your application and pass it into the DLL. Then, set Application.Handle = YourAppsHandle; and there you go, should be fine now. Regards, Louis stuart wrote: Help! we've come across a possible bug in delphi ( 5 and 6 ), where an app fails to minimise after calling a command imported from a DLL. we've narrowed it down to a "build with runtime packages" problem. ( under project options/packages ). This can be reproduce using a simple bare-boned program group containing two projects: 1) A simple app with a button that calls the dll procedure. 2) the DLL project with the dummy procedure. When both are built without "build with runtime packages" the app runs fine, but when both are build with it turned on ( default packages ) , the app runs fine, until the button is pressed and the dll procedure is run. then the program will no longer minimise. Thanks in advance for any help. 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