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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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What are the size restrictions for the VCL controls like TPanel and TPaintBox…

Posted by jpluimers on 2020/02/27

Via [WayBack] What are the size restrictions for the VCL controls like TPanel and TPaintBox.? Are they documented anywhere? I’m talking about placing these on a TScro… – Thomas Mueller (dummzeuch) – Google+:

Some Windows messages use the LPARAM to carry width and height, which allows only 16 bit for each.

So 32k-1 (or decimal 32767) is the maximum size of a GDI based visual element in Windows.

–jeroen

This entry was posted on 2020/02/27 at 12:00 and is filed under Development, Software Development, Windows Development. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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