VSConstants::VS_E_UNSUPPORTEDFORMAT Field
Visual Studio 2015
CreateEditorInstance returns this value if the document has a format that cannot be opened in the editor.
Assembly: Microsoft.VisualStudio.Shell.14.0 (in Microsoft.VisualStudio.Shell.14.0.dll)
When looping through CreateEditorInstance to find an appropriate editor to edit a file, if the file is currently open, returning VS_E_UNSUPPORTEDFORMAT will allow the loop to continue without closing the document.
Show: