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Bug Report T703583
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32-bit Clang-enhanced C++ compilers cannot compile the Rich Edit control's units in RAD Studio 10.3 Rio

created 6 years ago

When I drop a TdxRichEditControl into an otherwise-empty C++ window, the resulting Unit will not compile.  Rather, this error is repeated 210 times:
[bcc32c Error] systobj.h(85): cannot call operator __uuidof on a type with no GUID
  dxRichEdit.Import.Core.hpp(388): in instantiation of function template specialization 'System::TObject::GetInterface<Dxrichedit::Import::Core::IdxImporter__2<Dxrichedit::Utils::Officeimage::TdxOfficeImageFormat, Dxrichedit::Utils::Officeimage::TdxOfficeImageReference *> >' requested here

To reproduce this:

  1. Create a new C++ Builder VCL Application
  2. Drop a TdxRichEditControl into the window
  3. Attempt to compile the application

For reference, I am able to run the C++ Demos provided (after copying them out of the Program Files folder).   Also for reference, I had a similar problem with a previous version of this component not working in C++ which I reported at https://www.devexpress.com/Support/Center/Question/Details/T541646/tdxricheditcontrol-demo-with-ribbon-crashes-with-c-builder-berlin

Thank you.

Comments (2)
JN JN
James Nachbar 6 years ago

    Additional information:  I have discovered that if you turn the "Use 'classic' Borland compiler" option under Project Options/C++ Compiler on for the Project, this compile error no longer occurs, and the test project compiles, links and runs.

    For my application, I need that option on for other reasons, so this issue is no longer a problem for me, although it might be worth fixing anyway.  Thank you.

    DevExpress Support Team 6 years ago

      Hello James,

      Thank you for sharing your research results. I have reproduced this problem with the C++ Builder Rio IDE and our TdxRichEditControl control. We will examine this scenario and try to find an appropriate solution.

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      Answers approved by DevExpress Support

      created 6 years ago

      We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

      Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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