IVsSingleFileGenerator.DefaultExtension Method
Retrieves the file extension that is given to the output file name.
Namespace: Microsoft.VisualStudio.Shell.Interop
Assembly: Microsoft.VisualStudio.Shell.Interop (in microsoft.visualstudio.shell.interop.dll)
Assembly: Microsoft.VisualStudio.Shell.Interop (in microsoft.visualstudio.shell.interop.dll)
The project system invokes DefaultExtension in order to determine what extension to give to the generated output file.
The project system creates the file name of the generated file by:
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Stripping the extension of the input file.
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Appending the extension obtained from DefaultExtension.
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Making the file name unique, if necessary.