IVsTextManager::MapFilenameToLanguageSID Method (String^, Guid)

Visual Studio 2015

Given a file name, determines the registered language service, if one exists, that understands it.

Namespace: Microsoft.VisualStudio.TextManager.Interop
Assembly: Microsoft.VisualStudio.TextManager.Interop (in Microsoft.VisualStudio.TextManager.Interop.dll)

Syntax

C++

int MapFilenameToLanguageSID(
	String^ pszFileName,
	[OutAttribute] Guid% pguidLangSID
)

Parameters

pszFileName: Type: System::String^
[in] File name associated with the language service.

pguidLangSID: Type: System::Guid
[out] Pointer to the language service.

Return Value

Type: System::Int32

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

COM Signature

From textmgr.idl:

C++

HRESULT IVsTextManager::MapFilenameToLanguageSID(
   [in] const WCHAR *pszFileName,
   [out] GUID *pguidLangSID
);

This method allows you to map a file type to the appropriate language service for that type. This mapping works by looking in "HKEY_LOCAL_MACHINE\ Software\Microsoft\Languages\File Extensions" for entries that map an extension to a SID, that is, a CLSID for a language service that presumably implements IVsLanguageInfo.