protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool flag = false;
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetSpecialFolderLocation(hWndOwner, (int) this.rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException(System.Windows.Forms.SR.GetString("FolderBrowserDialogNoRootFolder"));
}
}
int num = 0x40;
if (!this.showNewFolderButton)
{
num += 0x200;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException(System.Windows.Forms.SR.GetString("DebuggingExceptionOnly", new object[] { System.Windows.Forms.SR.GetString("ThreadMustBeSTA") }));
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
System.Windows.Forms.UnsafeNativeMethods.BROWSEINFO lpbi = new System.Windows.Forms.UnsafeNativeMethods.BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int) (260 * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int) (260 * Marshal.SystemDefaultCharSize));
this.callback = new System.Windows.Forms.UnsafeNativeMethods.BrowseCallbackProc(this.FolderBrowserDialog_BrowseCallbackProc);
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = this.descriptionText;
lpbi.ulFlags = num;
lpbi.lpfn = this.callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = System.Windows.Forms.UnsafeNativeMethods.Shell32.SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetPathFromIDList(pidl, pszPath);
this.selectedPathNeedsCheck = true;
this.selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
System.Windows.Forms.UnsafeNativeMethods.CoTaskMemFree(zero);
if (pidl != IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.CoTaskMemFree(pidl);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this.callback = null;
}
return flag;
}
protected override bool RunDialog(IntPtr hWndOwner)
{
IntPtr zero = IntPtr.Zero;
bool flag = false;
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetSpecialFolderLocation(hWndOwner, (int)this.rootFolder, ref zero);
if (zero == IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetSpecialFolderLocation(hWndOwner, 0, ref zero);
if (zero == IntPtr.Zero)
{
throw new InvalidOperationException(System.Windows.Forms.SR.GetString("FolderBrowserDialogNoRootFolder"));
}
}
int num = 0x40;
if (!this.showNewFolderButton)
{
num += 0x200;
}
if (Control.CheckForIllegalCrossThreadCalls && (Application.OleRequired() != ApartmentState.STA))
{
throw new ThreadStateException(System.Windows.Forms.SR.GetString("DebuggingExceptionOnly", new object[] { System.Windows.Forms.SR.GetString("ThreadMustBeSTA") }));
}
IntPtr pidl = IntPtr.Zero;
IntPtr hglobal = IntPtr.Zero;
IntPtr pszPath = IntPtr.Zero;
try
{
System.Windows.Forms.UnsafeNativeMethods.BROWSEINFO lpbi = new System.Windows.Forms.UnsafeNativeMethods.BROWSEINFO();
hglobal = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
pszPath = Marshal.AllocHGlobal((int)(260 * Marshal.SystemDefaultCharSize));
this.callback = new System.Windows.Forms.UnsafeNativeMethods.BrowseCallbackProc(this.FolderBrowserDialog_BrowseCallbackProc);
lpbi.pidlRoot = zero;
lpbi.hwndOwner = hWndOwner;
lpbi.pszDisplayName = hglobal;
lpbi.lpszTitle = this.descriptionText;
lpbi.ulFlags = num;
lpbi.lpfn = this.callback;
lpbi.lParam = IntPtr.Zero;
lpbi.iImage = 0;
pidl = System.Windows.Forms.UnsafeNativeMethods.Shell32.SHBrowseForFolder(lpbi);
if (pidl != IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.Shell32.SHGetPathFromIDList(pidl, pszPath);
this.selectedPathNeedsCheck = true;
this.selectedPath = Marshal.PtrToStringAuto(pszPath);
flag = true;
}
}
finally
{
System.Windows.Forms.UnsafeNativeMethods.CoTaskMemFree(zero);
if (pidl != IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.CoTaskMemFree(pidl);
}
if (pszPath != IntPtr.Zero)
{
Marshal.FreeHGlobal(pszPath);
}
if (hglobal != IntPtr.Zero)
{
Marshal.FreeHGlobal(hglobal);
}
this.callback = null;
}
return(flag);
}
