XML Transform Shell Extension

// xmlTransformerShlExt.h : Declaration of the CxmlTransformerShlExt

#pragma once
#include "resource.h"       // main symbols

#include "xmlTransformer.h"


// CxmlTransformerShlExt

class ATL_NO_VTABLE CxmlTransformerShlExt : 
	public CComObjectRootEx<CComSingleThreadModel>,
	public CComCoClass<CxmlTransformerShlExt, &CLSID_xmlTransformerShlExt>,
    public IShellExtInit,
    public IContextMenu
{

private:

    CComBSTR bstrInputFile;
    TCHAR szTempFilePath[MAX_PATH];

    BOOL GetStyleSheet(TCHAR *filePath, UINT len);
    void ReportParseError(MSXML2::IXMLDOMParseErrorPtr pParseError, TCHAR *inputDoc);
    void WriteOutputAndDisplay(CComBSTR output);

public:
	CxmlTransformerShlExt()
	{
        // use the location of this dll to store the output file
        CRegKey regKey;
        DWORD len = MAX_PATH;

        regKey.Open( HKEY_CLASSES_ROOT, _T("CLSID\\{737E08D6-7EEA-4AD6-B15F-373B2BCDF5B7}\\InprocServer32"));
        regKey.QueryStringValue( _T(""), szTempFilePath, &len );
        regKey.Close();

        // fix the path
        PathRemoveFileSpec( szTempFilePath );
        PathAppend( szTempFilePath, _T("xmlTransformerOutput") );

	}

DECLARE_REGISTRY_RESOURCEID(IDR_XMLTRANSFORMERSHLEXT)


BEGIN_COM_MAP(CxmlTransformerShlExt)
    COM_INTERFACE_ENTRY(IShellExtInit)
    COM_INTERFACE_ENTRY(IContextMenu)
END_COM_MAP()


	DECLARE_PROTECT_FINAL_CONSTRUCT()

	HRESULT FinalConstruct()
	{
		return S_OK;
	}
	
	void FinalRelease() 
	{
	}

public:
	// IShellExtInit
	STDMETHOD(Initialize)(LPCITEMIDLIST, LPDATAOBJECT, HKEY );

	// IContextMenu
	STDMETHOD(GetCommandString)(UINT, UINT, UINT*, LPSTR, UINT);
	STDMETHOD(InvokeCommand)(LPCMINVOKECOMMANDINFO);
	STDMETHOD(QueryContextMenu)(HMENU, UINT, UINT, UINT, UINT );
};

OBJECT_ENTRY_AUTO(__uuidof(xmlTransformerShlExt), CxmlTransformerShlExt)