protected override bool RunDialog(IntPtr hWndOwner)
{
bool flag = false;
if (this._rootFolderLocation == IntPtr.Zero)
{
PInvoke.Shell32.SHGetSpecialFolderLocation(hWndOwner, (int)this._rootFolder,
ref this._rootFolderLocation);
if (this._rootFolderLocation == IntPtr.Zero)
{
PInvoke.Shell32.SHGetSpecialFolderLocation(hWndOwner, 0, ref this._rootFolderLocation);
if (this._rootFolderLocation == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogNoRootFolder");
}
}
}
this._hwndEdit = IntPtr.Zero;
if (this._dontIncludeNetworkFoldersBelowDomainLevel)
{
this._uiFlags += 2;
}
if (this._newStyle)
{
this._uiFlags += 0x40;
}
if (!this._showNewFolderButton)
{
this._uiFlags += 0x200;
}
if (this._showEditBox)
{
this._uiFlags += 0x10;
}
if (this._showBothFilesAndFolders)
{
this._uiFlags += 0x4000;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException("DebuggingException: ThreadMustBeSTA");
}
IntPtr zero = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
PInvoke.BROWSEINFO lpbi = new PInvoke.BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int)(MAX_PATH * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int)(MAX_PATH * Marshal.SystemDefaultCharSize));
this._callback = new PInvoke.BrowseFolderCallbackProc(this.FolderBrowserCallback);
lpbi.pidlRoot = this._rootFolderLocation;
lpbi.Owner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.Title = this._descriptionText;
lpbi.Flags = this._uiFlags;
lpbi.callback = this._callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
zero = PInvoke.Shell32.SHBrowseForFolder(lpbi);
if (((this._uiFlags & 0x2000) == 0x2000) || ((this._uiFlags & 0x1000) == 0x1000))
{
this._selectedPath = Marshal.PtrToStringAuto(lpbi.pszDisplayName);
return(true);
}
if (zero != IntPtr.Zero)
{
PInvoke.Shell32.SHGetPathFromIDList(zero, pszPath);
this._selectedPathNeedsCheck = true;
this._selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
PInvoke.IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(this._rootFolderLocation);
this._rootFolderLocation = IntPtr.Zero;
if (zero != IntPtr.Zero)
{
sHMalloc.Free(zero);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this._callback = null;
}
return(flag);
}
public static extern IntPtr SHBrowseForFolder([In] PInvoke.BROWSEINFO lpbi);
protected override bool RunDialog(IntPtr hWndOwner)
{
bool flag = false;
if (this._rootFolderLocation == IntPtr.Zero)
{
PInvoke.Shell32.SHGetSpecialFolderLocation(hWndOwner, (int) this._rootFolder,
ref this._rootFolderLocation);
if (this._rootFolderLocation == IntPtr.Zero)
{
PInvoke.Shell32.SHGetSpecialFolderLocation(hWndOwner, 0, ref this._rootFolderLocation);
if (this._rootFolderLocation == IntPtr.Zero)
{
throw new InvalidOperationException("FolderBrowserDialogNoRootFolder");
}
}
}
this._hwndEdit = IntPtr.Zero;
if (this._dontIncludeNetworkFoldersBelowDomainLevel)
{
this._uiFlags += 2;
}
if (this._newStyle)
{
this._uiFlags += 0x40;
}
if (!this._showNewFolderButton)
{
this._uiFlags += 0x200;
}
if (this._showEditBox)
{
this._uiFlags += 0x10;
}
if (this._showBothFilesAndFolders)
{
this._uiFlags += 0x4000;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException("DebuggingException: ThreadMustBeSTA");
}
IntPtr zero = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
PInvoke.BROWSEINFO lpbi = new PInvoke.BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int) (MAX_PATH*Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int) (MAX_PATH*Marshal.SystemDefaultCharSize));
this._callback = new PInvoke.BrowseFolderCallbackProc(this.FolderBrowserCallback);
lpbi.pidlRoot = this._rootFolderLocation;
lpbi.Owner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.Title = this._descriptionText;
lpbi.Flags = this._uiFlags;
lpbi.callback = this._callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
zero = PInvoke.Shell32.SHBrowseForFolder(lpbi);
if (((this._uiFlags & 0x2000) == 0x2000) || ((this._uiFlags & 0x1000) == 0x1000))
{
this._selectedPath = Marshal.PtrToStringAuto(lpbi.pszDisplayName);
return true;
}
if (zero != IntPtr.Zero)
{
PInvoke.Shell32.SHGetPathFromIDList(zero, pszPath);
this._selectedPathNeedsCheck = true;
this._selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
PInvoke.IMalloc sHMalloc = GetSHMalloc();
sHMalloc.Free(this._rootFolderLocation);
this._rootFolderLocation = IntPtr.Zero;
if (zero != IntPtr.Zero)
{
sHMalloc.Free(zero);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this._callback = null;
}
return flag;
}
