讀取文件圖標及目錄Copy[2006-10-16]

1. 使用SHGetFileInfo 函數提取文件ICON：

//---------------------------------------------------------------------------------------------------------------
//   頭文件  ICONExtracter.h
//---------------------------------------------------------------------------------------------------------------
class CIconExtracter
...{
public:
    CIconExtracter(void);
    ~CIconExtracter(void);
public:
    HIMAGELIST    GetDirIconsList( const TCHAR* DirPath, bool bSmallIcon );
    UINT        GetDirIndex( bool bSmallIcon );
    UINT        GetFileIndex( const TCHAR* FilePath, bool bSmallIcon );
    HICON        GetDirIcon( bool bSmallIcon );
    HICON        GetFileIcon( const TCHAR* FilePath, bool bSmallIcon );
};

//---------------------------------------------------------------------------------------------------------------
//   實現文件 iconextracter.cpp
//---------------------------------------------------------------------------------------------------------------

#include ".iconextracter.h"

CIconExtracter::CIconExtracter(void)
...{
}

CIconExtracter::~CIconExtracter(void)
...{

}

HIMAGELIST    CIconExtracter::GetDirIconsList( const TCHAR* DirPath, bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    return (HIMAGELIST)SHGetFileInfo( DirPath, 0, &sfi, sizeof( SHFILEINFO ), dwFlag );
}

UINT CIconExtracter::GetDirIndex( bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( _T("other"), FILE_ATTRIBUTE_DIRECTORY, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.iIcon;
}

UINT CIconExtracter::GetFileIndex( const TCHAR* FilePath, bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( FilePath, FILE_ATTRIBUTE_NORMAL, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.iIcon;
}

HICON    CIconExtracter::GetDirIcon( bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( _T("no mattor"), FILE_ATTRIBUTE_DIRECTORY, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.hIcon;
}

HICON    CIconExtracter::GetFileIcon( const TCHAR* FilePath, bool bSmallIcon )
...{
    SHFILEINFO sfi= ...{0};
    DWORD dwFlag = SHGFI_ICON | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( FilePath, FILE_ATTRIBUTE_NORMAL, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.hIcon;
}

 

bool CFileAndDirCopier::FileOperation( UINT Operate, CString& SrcPath, CString& DestPath )
{
 SrcPath += _T('/0');   //--: PC相上要加該行, wince下可不用
 SHFILEOPSTRUCT fp = {0};
 fp.hwnd  = GetSafeHwnd();
 fp.wFunc = Operate;
 fp.pFrom = SrcPath.GetBuffer( SrcPath.GetLength() + 1 );
 fp.pTo  = DestPath.GetBuffer( DestPath.GetLength() + 1 );
 fp.fFlags = 0;
 
 int rt = SHFileOperation( &fp );
 SrcPath.ReleaseBuffer();
 DestPath.ReleaseBuffer();

 return ( rt == 0 );
}

 使用部分函數:
void CFileAndDirCopier::OnBnClickedButtonCopy()
{
 UpdateData( TRUE );

 FileOperation( FO_COPY, m_SrcPath, m_DestPath );

 return;
}

void CFileAndDirCopier::OnBnClickedButtonMove()
{
 UpdateData( TRUE );

 FileOperation( FO_MOVE, m_SrcPath, m_DestPath );

 return;
}

void CFileAndDirCopier::OnBnClickedButtonRename()
{
 UpdateData( TRUE );

 FileOperation( FO_RENAME, m_SrcPath, m_DestPath );

 return;
}

void CFileAndDirCopier::OnBnClickedButtonDelete()
{
 UpdateData( TRUE );

 FileOperation( FO_DELETE, m_SrcPath, m_DestPath );

 return;
}

 

1. 使用SHGetFileInfo 函數提取文件ICON：

//---------------------------------------------------------------------------------------------------------------
//   頭文件  ICONExtracter.h
//---------------------------------------------------------------------------------------------------------------
class CIconExtracter
...{
public:
    CIconExtracter(void);
    ~CIconExtracter(void);
public:
    HIMAGELIST    GetDirIconsList( const TCHAR* DirPath, bool bSmallIcon );
    UINT        GetDirIndex( bool bSmallIcon );
    UINT        GetFileIndex( const TCHAR* FilePath, bool bSmallIcon );
    HICON        GetDirIcon( bool bSmallIcon );
    HICON        GetFileIcon( const TCHAR* FilePath, bool bSmallIcon );
};

//---------------------------------------------------------------------------------------------------------------
//   實現文件 iconextracter.cpp
//---------------------------------------------------------------------------------------------------------------

#include ".iconextracter.h"

CIconExtracter::CIconExtracter(void)
...{
}

CIconExtracter::~CIconExtracter(void)
...{

}

HIMAGELIST    CIconExtracter::GetDirIconsList( const TCHAR* DirPath, bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    return (HIMAGELIST)SHGetFileInfo( DirPath, 0, &sfi, sizeof( SHFILEINFO ), dwFlag );
}

UINT CIconExtracter::GetDirIndex( bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( _T("other"), FILE_ATTRIBUTE_DIRECTORY, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.iIcon;
}

UINT CIconExtracter::GetFileIndex( const TCHAR* FilePath, bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( FilePath, FILE_ATTRIBUTE_NORMAL, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.iIcon;
}

HICON    CIconExtracter::GetDirIcon( bool bSmallIcon )
...{
    SHFILEINFO sfi;
    DWORD dwFlag = SHGFI_SYSICONINDEX | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( _T("no mattor"), FILE_ATTRIBUTE_DIRECTORY, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.hIcon;
}

HICON    CIconExtracter::GetFileIcon( const TCHAR* FilePath, bool bSmallIcon )
...{
    SHFILEINFO sfi= ...{0};
    DWORD dwFlag = SHGFI_ICON | SHGFI_USEFILEATTRIBUTES;
    dwFlag |= bSmallIcon ? SHGFI_SMALLICON : SHGFI_LARGEICON;
    SHGetFileInfo( FilePath, FILE_ATTRIBUTE_NORMAL, &sfi, sizeof( SHFILEINFO ), dwFlag );
    return sfi.hIcon;
}

2. 通過SHFileOperation 外殼函數來拷貝目錄及文件:  
    -- 函數原型如:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/reference/functions/shfileoperation.asp 
注： 在使用CString做爲參數時，要用GetBuffer方式來讀取原字串否則會出一些copy的錯誤.

bool  CopyFoldeAndFiles( CString& SrcFile, CString& DestFile )
{
    SHFILEOPSTRUCT fp = {0};
    fp.hwnd      = GetSafeHwnd();
    fp.wFunc    = FO_COPY;
    fp.pFrom    = SrcFile.GetBuffer(SrcFile.GetLength() + 1);
    fp.pTo        = DestFile.GetBuffer(DestFile.GetLength() + 1);
    fp.fFlags    = 0;
    int rt = SHFileOperation( &fp );
    SrcFile.ReleaseBuffer(SrcFile.GetLength() + 1 );
    DestFile.ReleaseBuffer(SrcFile.GetLength() + 1 );
    return ( rt  == 0);
}

 

 

2. 通過SHFileOperation 外殼函數來拷貝目錄及文件:  
    -- 函數原型如:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/reference/functions/shfileoperation.asp 
注： 在使用CString做爲參數時，要用GetBuffer方式來讀取原字串否則會出一些copy的錯誤.