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    <p>First, look at the places where you interact with non-delphi libraries and api-calls, they might differ. On Win32, libraries with the stdcall calling convenstion are named like _SomeFunction@4 (@4 indicating the size of the parameters, etc). On Win64, there is only one calling convention, and the functions in a dll are no more decorated. If you import functions from dll files, you might need to adjust them.</p> <p>Keep in mind, in a 64 bit exe you cannot load a 32-bit dll, so, if you depend on 3rd party dll files, you should check for a 64-bit version of those files as well. </p> <p>Also, look at Integers, if you depend on their max value, for example when you let them overflow and wait for the moment that happens, it will cause trouble if the size of an integer is changed.</p> <p>Also, when working with streams, and you want to serialize different data, with includes an integer, it will cause trouble, since the size of the integer changed, and your stream will be out of sync.</p> <p>So, on places where you depend on the size of an integer or pointer, you will need to make adjustments. When serializing sush data, you need to keep in mind this size issue as well, as it might cause data incompatibilities between 32 and 64 bit versions. </p> <p>Also, the FreePascal compiler with the Lazarus IDE already supports 64-bit. This alternative Object Pascal compiler is not 100% compatible with the Borland/Codegear/Embarcadero dialect of Pascal, so just recompiling with it for 64-bit might not be that simple, but it might help point out problems with 64-bit.</p>
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    1. POHow to also prepare for 64-bits when migrating to Delphi 2010 and Unicode
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    1. USAndré van Schoubroeck
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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