[SOLVED] Warning in DirectX headers: inherited method is hidden

[Igor]

When I compile DX12.DWrite.pas from DirectX11/12 headers I see several warnings like this one:

Warning: An inherited method is hidden by: function GetFontCollection(currentPosition: UINT32; out fontCollection: IDWriteFontCollection; out textRange: TDWRITE_TEXT_RANGE): HResult; stdcall;   

https://github.com/CMCHTPC/DelphiDX12/tree/master/Units

Is it safe to simply turn off warnings for this code?

Code: Pascal  [Select][+][-]

1.     IDWriteTextFormat = interface(IUnknown)
2.         ['{9c906818-31d7-4fd3-a151-7c5e225db55a}']
3.         function GetFontCollection(out fontCollection: IDWriteFontCollection): HResult; stdcall;
4.  

Code: Pascal  [Select][+][-]

1.     IDWriteTextLayout = interface(IDWriteTextFormat)
2.         ['{53737037-6d14-410b-9bfe-0b182bb70961}']
3.         function GetFontCollection(currentPosition: UINT32; out fontCollection: IDWriteFontCollection;
4.             out textRange: TDWRITE_TEXT_RANGE): HResult; stdcall;
5.  

Lazarus 1.8.4/fpc 3.0.4, Windows 10 v1809

[skalogryz]

The method of IDWriteTextLayout needs to be marked as overload.

Code: Pascal  [Select][+][-]

1.   IDWriteTextLayout = interface(IDWriteTextFormat)
2.         ['{53737037-6d14-410b-9bfe-0b182bb70961}']
3.         function GetFontCollection(currentPosition: UINT32; out fontCollection: IDWriteFontCollection;
4.             out textRange: TDWRITE_TEXT_RANGE): HResult; overload; stdcall;
5.  

Delphi compiler consumes both ways: with overload and without it.
(FPC needs a feature update to treat such declaration as overload, at least for {$mode delphi})

[Igor]

Hi,

Thank you! Your solution works fine.