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Workbook affecting Winforms

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Spreadsheet
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Joe
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Joe asked on 21 Aug 2019, 01:05 AM

I have a Winforms project that has been working just fine.

Recently, I decided to add an export to Excel spreadsheet feature. I am using the documentprocessing spreadsheet API. As soon as I perform a "new Workbook" call, my WinForms windows shrink if... and only if... I have the display font scaling set to 125% or more. It behaves fine at 100%.

Why if I instantiate a Workbook does it affect the WinForms views?

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Dimitar
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answered on 21 Aug 2019, 09:28 AM
Hi Joe,

This happens when the application becomes DPI-aware at run-time.The DPI-awareness is declared on assembly level in some WPF assemblies which we depend on. When a type from such assembly is initialized the application becomes DPI-aware.

There are two solutions for this: 

• Make the application DPI-aware explicitly. Detailed information is available here: DPI Support
• Explicitly make the app DPI-Unaware. This is explained in the following article (last section): HDPI Tips and Tricks

I hope this will be useful. Let me know if you have additional questions.
 
Regards,
Dimitar
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