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The Mini Shell Extension Framework – Part III

, 18 Sep 2005
Discussion of a small C++ framework to create Windows shell extensions (IShellFolderImpl).
msf091.zip
include
columnprovider.rgs
contextmenu.rgs
contextmenu_sf.rgs
extension.rgs
extractimage_sf.rgs
infotip.rgs
infotip_sf.rgs
propertysheetext.rgs
propertysheetext_sf.rgs
shell32missing.def
shell32missing.lib
shellfolder.rgs
shellfolderwin98.rgs
vvvsample
Copy of sample1.vvv
menuicon.bmp
sample.def
sample.manifest
sample1.vvv
vvv.ico
vvvtest
sample.yyy
sample1.vvv
sample2.vvv
//
// (C) Copyright by Victor Derks <vba64@xs4all.nl>
//
// See README.TXT for detailed details of the software licence.
//
#pragma once


#include <vector>
#include "../include/macros.h"


class CVVVItem
{
public:
	static int GetMaxNameLength(LPCWSTR /*pszName*/) throw()
	{
		return 10; // note: limit is 10 for easy testing.
	}


	CVVVItem() throw() : _nID(0), _nSize(0), _bFolder(false)
	{
	}


	CVVVItem(unsigned int nID, unsigned int nSize, bool bFolder, const CString& strName) :
		_nID(nID),
		_nSize(nSize),
		_strName(strName),
		_bFolder(bFolder)
	{
	}


	CVVVItem(const SHITEMID& shitemid);

	CString GetDisplayName(SHGDNF shgdnf = SHGDN_NORMAL) const;
	void SetDisplayName(CString strNewName, SHGDNF shgdnf = SHGDN_NORMAL);

	SFGAOF GetAttributeOf(bool bSingleSelect, bool bReadOnly) const;

	unsigned int GetID() const throw()
	{
		return _nID;
	}


	void SetID(unsigned int nID) throw()
	{
		_nID = nID;
	}


	unsigned int GetSize() const throw()
	{
		return _nSize;
	}


	void SetSize(unsigned int nSize) throw()
	{
		_nSize = nSize;
	}


	CString GetName() const
	{
		return _strName;
	}


	bool IsFolder() const throw()
	{
		return _bFolder;
	}


	int Compare(const CVVVItem& directoryitem, int nCompareBy, bool bCanonicalOnly) const;
	CString GetItemDetailsOf(UINT iColumn) const;
	CString GetInfoTipText() const;
	int GetIconOf(UINT flags) const; 

	SHITEMID* CreateShellItemId(bool bAddEmptyId = true) const throw();

	ITEMIDLIST* CreateShellItemIdList() const throw()
	{
		return reinterpret_cast<ITEMIDLIST*>(CreateShellItemId());
	}


	bool operator ==(const CVVVItem& item) const throw()
	{
		return _strName == item._strName && _nID == item._nID;
	}

private:

	int CompareByName(const CVVVItem& item) const;

	unsigned int _nID;
	unsigned int _nSize;
	CString      _strName;
	bool         _bFolder;
};


typedef std::vector<CVVVItem> CVVVItems;

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About the Author

Victor Derks
Software Developer (Senior) Schneider Electric
Netherlands Netherlands
Victor lives in Nijmegen, the oldest city in The Netherlands.
He studied Applied Physics in Delft and now works for GE Healthcare.

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