Story Category: Undocumented Delphi

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Exceptions and DLL in Delphi – Stack Overflow

jpluimers jpluimers Every once in a while I discover an answer I have not yet put on my blog, especially as related answer are always interesting. This is one that didn’t make it until now: [Wayback/Archive] Exceptions… … Read more 1 day ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi, Windows Development 0

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Where can I find a comprehensive list of Delphi “compiler magic” declarations? – Stack Overflow

jpluimers jpluimers A long time ago, I posted one of the answers to [Wayback/Archive] Where can I find a comprehensive list of Delphi “compiler magic” declarations? – Stack Overflow So for my link archive, these are the… … Read more 3 years ago in Conference Topics, Conferences, Delphi, Development, ekon, Event, Software Development, Undocumented Delphi 0

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Delphi: got “EOleException with message ‘Microsoft MSXML is not installed’” in a console or test project?

jpluimers jpluimers Did you ever get this run-time error in a console or test project? EOleException with message ‘Microsoft MSXML is not installed’ It means that CoInitialize or CoInitializeEx needs to be called in the thread that… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi 0

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When your Delphi IDE suddenly skips unsaved changes during compilation(TL;DR: watch early signs your IDE is hosed, then restart without saving)

jpluimers jpluimers A while ago, I observed that when compiling, my Delphi IDE would not take into account unsaved changes any more. This ws in a time when I was tracking down some hard to reproduce problems… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi 0

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Delphi object instance lifetime demo; do not use AfterConstruction as a poor-mans way to work around non-virtual constructor or undetermined Create hierarchy calls

jpluimers jpluimers I think using AfterConstruction is a poor man’s solution that you should only use in exceptional cases, as it is: called only after the last constructor in the chain is called. called outside of the… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi 0

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Short Delphi tip: ensuring RTTI for classes is included

jpluimers jpluimers When using RTTI in Delphi, you really want the RTTI to be available. The compiler includes RTTI for classes, as soon as it found that a class is touched by code that will be executed…. … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, Software Development, Undocumented Delphi 0

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Delphi: quickly failing in use-after free scenarios

jpluimers jpluimers Two tricks that can help in use-after-free scenarios. Call ScanMemoryPoolForCorruptions often One of the scenarios of use after free, is that memory blocks get corrupted. FastMM4 normall checks this at process end using the CheckBlocksOnShutdown… … Read more 4 years ago in Conference Topics, Conferences, Delphi, Development, Event, FastMM, Software Development, Undocumented Delphi 0

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Delphi XE7 introduced const support for dynamic arrays; prior versions used [] only for sets.

jpluimers jpluimers A few things to learn from [WayBack] delphi – Constant array of cardinal produces error ‘Constant expression violates subrange bounds” – Stack Overflow: Delphi XE7 introduced compiler support for const dynamic arrays. Compiler errors can completely… … Read more 4 years ago in Delphi, Development, History, Software Development, Undocumented Delphi 0

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Delphi intrinsic functions that evaluate to consts

jpluimers jpluimers A long time ago, I wondered Are these really Windows compiler unsupported Delphi Intrinsic Routines about [WayBack/Archive.is] Delphi Intrinsic Routines – RAD Studio. Today, I limited the documented intrinsic list to the constant intrinsic functions: const… … Read more 4 years ago in Delphi, Development, Software Development, Undocumented Delphi 0

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On my research list: Delphi “Package Cache” subtree

jpluimers jpluimers On one of the sites, when having some Delphi package registration issues, the standard measure was to delete the complete Package Cache subtree (like HKEY_CURRENT_USER\Software\Embarcadero\BDS\17.0\Package Cache). Since there is so little information about it, it is… … Read more 4 years ago in Delphi, Development, Software Development, Undocumented Delphi 0
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