protected override bool RunDialog(IntPtr hWndOwner)
{
bool result = false;
if (_rootFolderLocation == IntPtr.Zero)
{
ShellApi.SHGetSpecialFolderLocation(hWndOwner, (ShellApi.CSIDL) this._rootFolder, ref _rootFolderLocation);
if (_rootFolderLocation == IntPtr.Zero)
{
ShellApi.SHGetSpecialFolderLocation(hWndOwner, 0, ref _rootFolderLocation);
if (_rootFolderLocation == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogNoRootFolder");
}
}
}
_hwndEdit = IntPtr.Zero;
//_uiFlags = 0;
if (_dontIncludeNetworkFoldersBelowDomainLevel)
{
_uiFlags += BrowseFlags.BIF_DONTGOBELOWDOMAIN;
}
if (this._newStyle)
{
_uiFlags += BrowseFlags.BIF_NEWDIALOGSTYLE;
}
if (!this._showNewFolderButton)
{
_uiFlags += BrowseFlags.BIF_NONEWFOLDERBUTTON;
}
if (this._showEditBox)
{
_uiFlags += BrowseFlags.BIF_EDITBOX;
}
if (this._showBothFilesAndFolders)
{
_uiFlags += BrowseFlags.BIF_BROWSEINCLUDEFILES;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException("DebuggingException: ThreadMustBeSTA");
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
try
{
ShellApi.BROWSEINFO browseInfo = new ShellApi.BROWSEINFO();
hglobal = Marshal.AllocHGlobal(MAX_PATH * Marshal.SystemDefaultCharSize);
this._callback = new ShellApi.BrowseCallbackProc(this.FolderBrowserCallback);
browseInfo.pidlRoot = _rootFolderLocation;
browseInfo.hwndOwner = hWndOwner;
browseInfo.pszDisplayName = hglobal;
browseInfo.lpszTitle = this._descriptionText;
browseInfo.ulFlags = _uiFlags;
browseInfo.lpfn = this._callback;
browseInfo.lParam = IntPtr.Zero;
browseInfo.iImage = 0;
pidl = ShellApi.SHBrowseForFolder(ref browseInfo);
if (((_uiFlags & BrowseFlags.BIF_BROWSEFORPRINTER) == BrowseFlags.BIF_BROWSEFORPRINTER) ||
((_uiFlags & BrowseFlags.BIF_BROWSEFORCOMPUTER) == BrowseFlags.BIF_BROWSEFORCOMPUTER))
{
this._selectedPath = Marshal.PtrToStringAuto(browseInfo.pszDisplayName);
result = true;
}
else
{
if (pidl != IntPtr.Zero)
{
StringBuilder pszPath = new StringBuilder(MAX_PATH);
ShellApi.SHGetPathFromIDList(pidl, pszPath);
this._selectedPathNeedsCheck = true;
this._selectedPath = pszPath.ToString();
result = true;
}
}
}
finally
{
ShellApi.IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(_rootFolderLocation);
_rootFolderLocation = IntPtr.Zero;
if (pidl != IntPtr.Zero)
{
sHMalloc.Free(pidl);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this._callback = null;
}
return(result);
}
public void ShowDialog()
{
m_FullName = "";
m_DisplayName = "";
// Get shell's memory allocator, it is needed to free some memory later
IMalloc pMalloc;
pMalloc = ShellFunctions.GetMalloc();
IntPtr pidlRoot;
if (RootType == RootTypeOptions.BySpecialFolder)
{
ShellApi.SHGetFolderLocation(hwndOwner, (int)RootSpecialFolder, UserToken, 0, out pidlRoot);
}
else // m_RootType = RootTypeOptions.ByPath
{
uint iAttribute;
ShellApi.SHParseDisplayName(RootPath, IntPtr.Zero, out pidlRoot, 0, out iAttribute);
}
ShellApi.BROWSEINFO bi = new ShellApi.BROWSEINFO();
bi.hwndOwner = hwndOwner;
bi.pidlRoot = pidlRoot;
bi.pszDisplayName = new String(' ', 256);
bi.lpszTitle = Title;
bi.ulFlags = (uint)DetailsFlags;
bi.lParam = 0;
bi.lpfn = new ShellApi.BrowseCallbackProc(myBrowseCallbackProc);
// Show dialog
IntPtr pidlSelected;
pidlSelected = ShellApi.SHBrowseForFolder(ref bi);
// Save the display name
m_DisplayName = bi.pszDisplayName;
IShellFolder isf = ShellFunctions.GetDesktopFolder();
ShellApi.STRRET ptrDisplayName;
isf.GetDisplayNameOf(pidlSelected, (uint)ShellApi.SHGNO.SHGDN_NORMAL | (uint)ShellApi.SHGNO.SHGDN_FORPARSING,
out ptrDisplayName);
String sDisplay;
ShellApi.StrRetToBSTR(ref ptrDisplayName, pidlRoot, out sDisplay);
m_FullName = sDisplay;
if (pidlRoot != IntPtr.Zero)
pMalloc.Free(pidlRoot);
if (pidlSelected != IntPtr.Zero)
pMalloc.Free(pidlSelected);
Marshal.ReleaseComObject(isf);
Marshal.ReleaseComObject(pMalloc);
}
public void ShowDialog()
{
m_FullName = "";
m_DisplayName = "";
// Get shell's memory allocator, it is needed to free some memory later
IMalloc pMalloc;
pMalloc = ShellFunctions.GetMalloc();
IntPtr pidlRoot;
if (RootType == RootTypeOptions.BySpecialFolder)
{
ShellApi.SHGetFolderLocation(hwndOwner, (int)RootSpecialFolder, UserToken, 0, out pidlRoot);
}
else // m_RootType = RootTypeOptions.ByPath
{
uint iAttribute;
ShellApi.SHParseDisplayName(RootPath, IntPtr.Zero, out pidlRoot, 0, out iAttribute);
}
ShellApi.BROWSEINFO bi = new ShellApi.BROWSEINFO();
bi.hwndOwner = hwndOwner;
bi.pidlRoot = pidlRoot;
bi.pszDisplayName = new String(' ', 256);
bi.lpszTitle = Title;
bi.ulFlags = (uint)DetailsFlags;
bi.lParam = 0;
bi.lpfn = new ShellApi.BrowseCallbackProc(this.myBrowseCallbackProc);
// Show dialog
IntPtr pidlSelected;
pidlSelected = ShellLib.ShellApi.SHBrowseForFolder(ref bi);
// Save the display name
m_DisplayName = bi.pszDisplayName.ToString();
IShellFolder isf = ShellFunctions.GetDesktopFolder();
ShellApi.STRRET ptrDisplayName;
isf.GetDisplayNameOf(pidlSelected, (uint)ShellApi.SHGNO.SHGDN_NORMAL | (uint)ShellApi.SHGNO.SHGDN_FORPARSING, out ptrDisplayName);
String sDisplay;
ShellLib.ShellApi.StrRetToBSTR(ref ptrDisplayName, pidlRoot, out sDisplay);
m_FullName = sDisplay;
if (pidlRoot != IntPtr.Zero)
{
pMalloc.Free(pidlRoot);
}
if (pidlSelected != IntPtr.Zero)
{
pMalloc.Free(pidlSelected);
}
Marshal.ReleaseComObject(isf);
Marshal.ReleaseComObject(pMalloc);
}
