BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Very strange package loading problem          BorlandTalk.com Forum Index -> Delphi OpenToolsAPI View previous topic :: View next topic   Author Message Sergio Sette Guest Posted: Wed Mar 28, 2007 4:15 am    Post subject: Very strange package loading problem I've installed a design-time package without problems (D2006). But when i start delphi the package (listed in the design-time packages) is not loaded (initializazion and register procedure are not executed). When i drop a component belonging to this package then both initialization section and Register procedure are called. Any idea ? Best regards sergio sette Back to top Sergio Sette Guest Posted: Wed Mar 28, 2007 5:04 am    Post subject: Re: Very strange package loading problem Sergio Sette wrote: Quote: But when i start delphi the package (listed in the design-time packages) is not loaded (initializazion and register procedure are not executed). But the package is marked as loaded inside the IDE. Back to top Sergio Sette Guest Posted: Wed Mar 28, 2007 5:24 am    Post subject: Re: Very strange package loading problem I've investigated a little bit more into the problem and i've found trying to reinstall the package the installation fails (unable to load package) but restarting th IDE after this causes the package to be loaded correctly. Restarting the IDE again without any changes causes the package to not be loaded at startup (is always listed as a loaded package). I'm doing something wrongs ? Best regards Back to top TOndrej Guest Posted: Wed Mar 28, 2007 8:12 am    Post subject: Re: Very strange package loading problem Sergio Sette wrote: Quote: I've investigated a little bit more into the problem and i've found trying to reinstall the package the installation fails (unable to load package) but restarting th IDE after this causes the package to be loaded correctly. Restarting the IDE again without any changes causes the package to not be loaded at startup (is always listed as a loaded package). I'm doing something wrongs ? I'd guess that the IDE is loading an older version of the .bpl, not the one that results from recompiling the .dpk from source. My advice is to check your paths. HTH TOndrej Back to top Robert Marquardt Guest Posted: Wed Mar 28, 2007 2:09 pm    Post subject: Re: Very strange package loading problem Sergio Sette wrote: Quote: I've installed a design-time package without problems (D2006). But when i start delphi the package (listed in the design-time packages) is not loaded (initializazion and register procedure are not executed). When i drop a component belonging to this package then both initialization section and Register procedure are called. Any idea ? Make your finalization section clean, i. e. set global variables to uninitialized as last step (assign nil to freed objects etc). That was a problem with the JVCL until we cleaned all the finalization sections. Back to top Sergio Sette Guest Posted: Thu Mar 29, 2007 1:13 am    Post subject: Re: Very strange package loading problem TOndrej wrote: Quote: I'd guess that the IDE is loading an older version of the .bpl, not the one that results from recompiling the .dpk from source. My advice is to check your paths. I've checked my HD and there are not copies of my package. I think the problem has something to do with package dependencies. My package, A_DT, is a design-time package that depends to other packages (A, P and P_DT, where A is the run-time A_DT related package and P_DT is another installed design-time only package). The P_DT package works correctly, and recompiling P or P_DT the first package get recompiled and loaded. Best regards sergio sette Back to top Sergio Sette Guest Posted: Thu Mar 29, 2007 1:20 am    Post subject: Re: Very strange package loading problem Robert Marquardt wrote: Quote: Make your finalization section clean, i. e. set global variables to uninitialized as last step (assign nil to freed objects etc). That was a problem with the JVCL until we cleaned all the finalization sections. Tnx for the tip. I have cleared (commented!!) all my initialization and finalization code, but the problem persists. I think the problem is with dependencies (my package depends from anoter installed package and recompiling the last one my package get loaded) but is very difficult for me understand why the ide reports the package as loaded where isn't. And more difficult is for me explain why the package get loaded after dropping a package's component onto a form/datamodule. Sergio Sette Back to top Erik Berry Guest Posted: Thu Mar 29, 2007 2:21 pm    Post subject: Re: Very strange package loading problem Sergio Sette wrote: Quote: I've installed a design-time package without problems (D2006). But when i start delphi the package (listed in the design-time packages) is not loaded (initializazion and register procedure are not executed). When i drop a component belonging to this package then both initialization section and Register procedure are called. The IDE delay loads (demand loads) packages/bpls when it believes that the code is not needed immediately in memory at the time the IDE is loading. In general, this is a good thing, but if you don't like it for whatever reason, call ForceDemandLoadState(dlDisable). Erik Back to top Sergio Sette Guest Posted: Thu Mar 29, 2007 4:38 pm    Post subject: Re: Very strange package loading problem Erik Berry wrote: Quote: The IDE delay loads (demand loads) packages/bpls when it believes that the code is not needed immediately in memory at the time the IDE is loading. Aha !! Is this new in D2006 ? In general, this is a good thing, but if you don't like it for Quote: whatever reason, call ForceDemandLoadState(dlDisable). Tnx a lot Eric. Very useful tip, this solve my problem !! Sergio sette Back to top Dmitry Gritsay Guest Posted: Fri Apr 06, 2007 1:56 pm    Post subject: Re: Very strange package loading problem Hello Erik, Quote: The IDE delay loads (demand loads) packages/bpls when it believes that the code is not needed immediately in memory at the time the IDE is loading. In general, this is a good thing, but if you don't like it for whatever reason, call ForceDemandLoadState(dlDisable). How can I make IDE loading a package programmatically from another unrelated package? I need to get access to all installed components in IDE from my wizard. Using PaletteAPI I get a component list, but I cannot get reference to each class (via FindClass) because not all packages are loaded in the IDE. Best regards, Dmitry Gritsay Back to top Erik Berry Guest Posted: Tue Apr 10, 2007 3:05 am    Post subject: Re: Very strange package loading problem Dmitry Gritsay wrote: Quote: How can I make IDE loading a package programmatically from another unrelated package? Try LoadPackage/UnloadPackage. Depending on what you need, you may also need to manually lookup the address of and call the Register/IDERegister procedures. 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