Windows Mobile 下面最通用的浏览文件对话框

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M$ Windows Mobile 一大不爽的东西就是 GetOpenFileName 和 GetSaveFileName 函数非常的乱：WM5 上提供了一个 GetOpenFileNameEx 来浏览图片；PPC2003/WM5 下极其简单，只能使用非常浅的文件夹（虽然设计上的考虑，但也太滥了）；SP2003 下压根就没有这些函数。于是只好自己写可以个函数非常通用的函数，Windows Mobile 2003/5.0 SP/PPC 下均可正常运行并获得最佳体验。

补充一下标题，还是最懒的方法，真正的东西一点都不写：）

支持一下功能：

  • 简单的参数

  • 保存最后文件夹位置（似乎 RFileShell 不响应咱的请求）

  • 根据不同的运行环境，自动使用最佳的浏览对话框函数

策略：

  • 如果找到 Resco 的 RFileShell.dll （安装过 Resco Explorer、PhotoViewer 等软件），则使用RFileShell.dll 的浏览文件函数。它的是最棒的，精神奖励一下！

  • 其次，使用 Windows Mobile 5.0 的 GetOpenFileNameEx，只有打开，没有保存的

  • 再次，使用 tGetFile 的函数，我都做好了完美本地化了

  • 最后，使用 CoreDll 的 GetOpenFileName 和 GetSaveFileName

  • 实在不行了，又在 Smartphone 2003 下，提示一下用户去下载 RFileShell 或 tGetFile 吧，简单地返回 \My Documents\AppName.Ext 的文件名吧，顺便问问用户是否接受：）

真是不费一枪一弹啊……

以下代码，版权所有 (C) Yonsm.NET，保留所有权利。
如需在程序中使用，请留言或发送 Mail 告知。

[codes=cpp]
// 资源
IDS_Open “打开”
IDS_Save “保存”
IDS_GetFileName “没有找到浏览文件名功能的函数库，要使用“%s”作为文件名吗?。\n\n提示: 您可以从下列网站中获得相关的函数库:\n\nRFileShell: http://www.resco.net/downloads/byplatforms.asp\n\ntGetFile:\thttp://www.tillanosoft.com/ce/tgetfile.html”

// CReg
// STR_AppName
…..
[/codes]

[codes=cpp]
// Declaration
#if (_WIN32_WCE < 0x500)
typedef struct tagOPENFILENAMEEX
{
// Fields which map to OPENFILENAME
DWORD lStructSize;
HWND hwndOwner;
HINSTANCE hInstance;
LPCTSTR lpstrFilter;
LPTSTR lpstrCustomFilter;
DWORD nMaxCustFilter;
DWORD nFilterIndex;
LPTSTR lpstrFile;
DWORD nMaxFile;
LPTSTR lpstrFileTitle;
DWORD nMaxFileTitle;
LPCTSTR lpstrInitialDir;
LPCTSTR lpstrTitle;
DWORD Flags;
WORD nFileOffset;
WORD nFileExtension;
LPCTSTR lpstrDefExt;
LPARAM lCustData;
LPOFNHOOKPROC lpfnHook;
LPCTSTR lpTemplateName;

// Extended fields
DWORD dwSortOrder;
DWORD ExFlags;
}
OPENFILENAMEEX, *LPOPENFILENAMEEX;

// Sort order
typedef enum tagOFN_SORTORDER
{
OFN_SORTORDER_AUTO,
OFN_SORTORDER_DATE,
OFN_SORTORDER_NAME,
OFN_SORTORDER_SIZE,
OFN_SORTORDER_ASCENDING = 0x00008000

}
OFN_SORTORDER;

// Extended Flags
typedef enum tagOFN_EXFLAG
{
OFN_EXFLAG_DETAILSVIEW = 0x00000001,
OFN_EXFLAG_THUMBNAILVIEW = 0x00000002,
OFN_EXFLAG_LOCKDIRECTORY = 0x00000100,
OFN_EXFLAG_NOFILECREATE = 0x00000200,
OFN_EXFLAG_HIDEDRMPROTECTED = 0x00010000,
OFN_EXFLAG_HIDEDRMFORWARDLOCKED = 0x00020000
}
OFN_EXFLAG;
#endif

typedef BOOL (PGETFILENAME)(LPOPENFILENAMEEX pOfn);
typedef BOOL (TGETFILENAME)(BOOL bSave, LPOPENFILENAMEEX pOfn);

// Module name and procedure table
enum {MP_RFileShell, MP_AygShell, MP_tGetFile, MP_CoreDll};
const struct {PCTSTR ptzModName; PCTSTR ptzOpenProc; PCTSTR ptzSaveProc;} c_sModProc[] =
{
{TEXT(“RFileShell”), TEXT(“RShellGetOpenFileName”), TEXT(“RShellGetSaveFileName”)},
{TEXT(“AygShell”), TEXT(“GetOpenFileNameEx”), TEXT(“GetSaveFileNameEx”)},
{TEXT(“tGetFile”), TEXT(“tGetFile”), TEXT(“tGetFile”)},
{TEXT(“CoreDll”), TEXT(“GetOpenFileNameW”), TEXT(“GetSaveFileNameW”)},
};

[/codes]

[codes=cpp]

// Browse for file name
#define OFN_COMMON (0x11000000 | OFN_HIDEREADONLY)
BOOL CHelper::GetFileName(HWND hParent, PTSTR ptzPath, UINT uFilterRes, BOOL bSave)
{
// Fill structure
OPENFILENAMEEX ofn = {0};
ofn.hwndOwner = hParent;
ofn.hInstance = g_hInst;
ofn.lpstrFile = ptzPath;
ofn.nMaxFile = MAX_PATH;
ofn.Flags = bSave ? (OFN_COMMON | OFN_OVERWRITEPROMPT) : (OFN_COMMON | OFN_PATHMUSTEXIST);

ofn.ExFlags = OFN_EXFLAG_THUMBNAILVIEW;
ofn.dwSortOrder = OFN_SORTORDER_NAME | OFN_SORTORDER_ASCENDING;

// Get initialize folder from control
TCHAR tzPath[MAX_PATH];
if (_IsIntRes(ptzPath))
{
ofn.lpstrFile = tzPath;
GetDlgItemText(hParent, (UINT) ptzPath, tzPath, MAX_PATH);
}

// Load extension filter
TCHAR tzFilter[MAX_PATH];
_LoadStr(uFilterRes, tzFilter);
ofn.lpstrFilter = UStrRep(tzFilter, ‘|’, 0);

// Parse default extension
TCHAR tzDefExt[MAX_NAME];
PTSTR p = UStrChr(tzFilter, 0) + 1;
if (p = UStrChr(p, ‘.’))
{
UStrCopy(tzDefExt, p);
if (p = UStrChr(tzDefExt, ‘;’)) *p = 0;
ofn.lpstrDefExt = tzDefExt;
}

// Read initialize folder
CReg reg;
TCHAR tzInitDir[MAX_PATH];
if (reg.GetStr(TEXT(“InitDir”), tzInitDir))
{
ofn.lpstrInitialDir = tzInitDir;
}
else
{
ofn.lpstrInitialDir = TEXT(“\”);
}

// Get title
TCHAR tzTitle[MAX_NAME];
ofn.lpstrTitle = _LoadStr(bSave ? IDS_Save : IDS_Open, tzTitle);

// Try all library
UINT i = 0;
BOOL bResult = FALSE;
for (; i < NumOf(c_sModProc); i++)
{
HMODULE hModule = LoadLibrary(c_sModProc.ptzModName);
if ((hModule == NULL) && (i == MP_RFileShell))
{
// Lookup Resco Explorer install folder
&nbs; p; TCHAR tzModule[MAX_PATH];
CReg rfs(TEXT(“SOFTWARE\Apps\Resco Explorer”), HKEY_LOCAL_MACHINE);
if (rfs.GetStr(TEXT(“InstallDir”), tzModule))
{
UDirMakePath(tzModule, c_sModProc_.ptzModName);
hModule = LoadLibrary(tzModule);
}
}
if (hModule)
{
PGETFILENAME pGetFileName = (PGETFILENAME) GetProcAddress(hModule, bSave ? c_sModProc_.ptzSaveProc : c_sModProc_.ptzOpenProc);
if (pGetFileName)
{
ofn.lStructSize = (i == MP_AygShell) ? sizeof(OPENFILENAMEEX) : sizeof(OPENFILENAME);
bResult = (i == MP_tGetFile) ? ((TGETFILENAME) pGetFileName)(bSave, &ofn;) : pGetFileName(&ofn;);
FreeLibrary(hModule);
break;
}
FreeLibrary(hModule);
}
}

// Prompt for library
if ((i == MP_CoreDll) && !IsPPC() && !IsWM5() && !bResult)
{
TCHAR tzStr[MAX_PATH];
TCHAR tzInfo[MAX_STR];
UStrPrint(ofn.lpstrFile, TEXT(“\My Documentss\%s.%s”), STR_AppName, ofn.lpstrDefExt);
UStrPrint(tzInfo, _GetStr(IDS_GetFileName), ofn.lpstrFile);
bResult = (MessageBox(hParent, tzInfo, tzTitle, MB_ICONQUESTION | MB_YESNO) == IDYES);
}

if (bResult)
{
// Set control text
if (_IsIntRes(ptzPath))
{
SetFocus(GetDlgItem(hParent, (UINT) ptzPath));
SetDlgItemText(hParent, (UINT) ptzPath, tzPath);
}

   // Save initialize folder  
   p = UStrRChr(ofn.lpstrFile, '\\');  
   if (p)  
   {  
       *p = 0;  
       reg.SetStr(TEXT("InitDir"), ofn.lpstrFile);  
       *p = '\\';  
   }      }

return bResult;
[/codes]


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