private bool DoFileOk(IntPtr lpOFN)
{
System.Windows.Forms.NativeMethods.OPENFILENAME_I openfilename_i = (System.Windows.Forms.NativeMethods.OPENFILENAME_I)System.Windows.Forms.UnsafeNativeMethods.PtrToStructure(lpOFN, typeof(System.Windows.Forms.NativeMethods.OPENFILENAME_I));
int options = this.options;
int filterIndex = this.filterIndex;
string[] fileNames = this.fileNames;
bool securityCheckFileNames = this.securityCheckFileNames;
bool flag2 = false;
try
{
this.options = (this.options & -2) | (openfilename_i.Flags & 1);
this.filterIndex = openfilename_i.nFilterIndex;
this.charBuffer.PutCoTaskMem(openfilename_i.lpstrFile);
this.securityCheckFileNames = true;
Thread.MemoryBarrier();
if ((this.options & 0x200) == 0)
{
this.fileNames = new string[] { this.charBuffer.GetString() };
}
else
{
this.fileNames = this.GetMultiselectFiles(this.charBuffer);
}
if (!this.ProcessFileNames())
{
return(flag2);
}
CancelEventArgs e = new CancelEventArgs();
if (NativeWindow.WndProcShouldBeDebuggable)
{
this.OnFileOk(e);
return(!e.Cancel);
}
try
{
this.OnFileOk(e);
flag2 = !e.Cancel;
}
catch (Exception exception)
{
Application.OnThreadException(exception);
}
}
finally
{
if (!flag2)
{
this.securityCheckFileNames = securityCheckFileNames;
Thread.MemoryBarrier();
this.fileNames = fileNames;
this.options = options;
this.filterIndex = filterIndex;
}
}
return(flag2);
}
private bool RunDialogOld(IntPtr hWndOwner)
{
bool flag;
System.Windows.Forms.NativeMethods.WndProc proc = new System.Windows.Forms.NativeMethods.WndProc(this.HookProc);
System.Windows.Forms.NativeMethods.OPENFILENAME_I ofn = new System.Windows.Forms.NativeMethods.OPENFILENAME_I();
try
{
this.charBuffer = System.Windows.Forms.UnsafeNativeMethods.CharBuffer.CreateBuffer(0x2000);
if (this.fileNames != null)
{
this.charBuffer.PutString(this.fileNames[0]);
}
ofn.lStructSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.OPENFILENAME_I));
if ((Environment.OSVersion.Platform != PlatformID.Win32NT) || (Environment.OSVersion.Version.Major < 5))
{
ofn.lStructSize = 0x4c;
}
ofn.hwndOwner = hWndOwner;
ofn.hInstance = this.Instance;
ofn.lpstrFilter = MakeFilterString(this.filter, this.DereferenceLinks);
ofn.nFilterIndex = this.filterIndex;
ofn.lpstrFile = this.charBuffer.AllocCoTaskMem();
ofn.nMaxFile = 0x2000;
ofn.lpstrInitialDir = this.initialDir;
ofn.lpstrTitle = this.title;
ofn.Flags = this.Options | 0x880020;
ofn.lpfnHook = proc;
ofn.FlagsEx = 0x1000000;
if ((this.defaultExt != null) && this.AddExtension)
{
ofn.lpstrDefExt = this.defaultExt;
}
flag = this.RunFileDialog(ofn);
}
finally
{
this.charBuffer = null;
if (ofn.lpstrFile != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ofn.lpstrFile);
}
}
return(flag);
}
private bool RunDialogOld(IntPtr hWndOwner)
{
bool flag;
System.Windows.Forms.NativeMethods.WndProc proc = new System.Windows.Forms.NativeMethods.WndProc(this.HookProc);
System.Windows.Forms.NativeMethods.OPENFILENAME_I ofn = new System.Windows.Forms.NativeMethods.OPENFILENAME_I();
try
{
this.charBuffer = System.Windows.Forms.UnsafeNativeMethods.CharBuffer.CreateBuffer(0x2000);
if (this.fileNames != null)
{
this.charBuffer.PutString(this.fileNames[0]);
}
ofn.lStructSize = Marshal.SizeOf(typeof(System.Windows.Forms.NativeMethods.OPENFILENAME_I));
if ((Environment.OSVersion.Platform != PlatformID.Win32NT) || (Environment.OSVersion.Version.Major < 5))
{
ofn.lStructSize = 0x4c;
}
ofn.hwndOwner = hWndOwner;
ofn.hInstance = this.Instance;
ofn.lpstrFilter = MakeFilterString(this.filter, this.DereferenceLinks);
ofn.nFilterIndex = this.filterIndex;
ofn.lpstrFile = this.charBuffer.AllocCoTaskMem();
ofn.nMaxFile = 0x2000;
ofn.lpstrInitialDir = this.initialDir;
ofn.lpstrTitle = this.title;
ofn.Flags = this.Options | 0x880020;
ofn.lpfnHook = proc;
ofn.FlagsEx = 0x1000000;
if ((this.defaultExt != null) && this.AddExtension)
{
ofn.lpstrDefExt = this.defaultExt;
}
flag = this.RunFileDialog(ofn);
}
finally
{
this.charBuffer = null;
if (ofn.lpstrFile != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(ofn.lpstrFile);
}
}
return flag;
}
internal abstract bool RunFileDialog(System.Windows.Forms.NativeMethods.OPENFILENAME_I ofn);
protected override IntPtr HookProc(IntPtr hWnd, int msg, IntPtr wparam, IntPtr lparam)
{
if (msg == 0x4e)
{
this.dialogHWnd = System.Windows.Forms.UnsafeNativeMethods.GetParent(new HandleRef(null, hWnd));
try
{
System.Windows.Forms.UnsafeNativeMethods.OFNOTIFY structure = (System.Windows.Forms.UnsafeNativeMethods.OFNOTIFY)System.Windows.Forms.UnsafeNativeMethods.PtrToStructure(lparam, typeof(System.Windows.Forms.UnsafeNativeMethods.OFNOTIFY));
switch (structure.hdr_code)
{
case -606:
if (this.ignoreSecondFileOkNotification)
{
if (this.okNotificationCount != 0)
{
break;
}
this.okNotificationCount = 1;
}
goto Label_0171;
case -604:
this.ignoreSecondFileOkNotification = true;
this.okNotificationCount = 0;
goto Label_01CF;
case -602:
{
System.Windows.Forms.NativeMethods.OPENFILENAME_I openfilename_i = (System.Windows.Forms.NativeMethods.OPENFILENAME_I)System.Windows.Forms.UnsafeNativeMethods.PtrToStructure(structure.lpOFN, typeof(System.Windows.Forms.NativeMethods.OPENFILENAME_I));
int num = (int)System.Windows.Forms.UnsafeNativeMethods.SendMessage(new HandleRef(this, this.dialogHWnd), 0x464, IntPtr.Zero, IntPtr.Zero);
if (num > openfilename_i.nMaxFile)
{
try
{
int size = num + 0x800;
System.Windows.Forms.UnsafeNativeMethods.CharBuffer buffer = System.Windows.Forms.UnsafeNativeMethods.CharBuffer.CreateBuffer(size);
IntPtr ptr = buffer.AllocCoTaskMem();
Marshal.FreeCoTaskMem(openfilename_i.lpstrFile);
openfilename_i.lpstrFile = ptr;
openfilename_i.nMaxFile = size;
this.charBuffer = buffer;
Marshal.StructureToPtr(openfilename_i, structure.lpOFN, true);
Marshal.StructureToPtr(structure, lparam, true);
}
catch
{
}
}
this.ignoreSecondFileOkNotification = false;
goto Label_01CF;
}
case -601:
CommonDialog.MoveToScreenCenter(this.dialogHWnd);
goto Label_01CF;
default:
goto Label_01CF;
}
this.ignoreSecondFileOkNotification = false;
System.Windows.Forms.UnsafeNativeMethods.SetWindowLong(new HandleRef(null, hWnd), 0, new HandleRef(null, System.Windows.Forms.NativeMethods.InvalidIntPtr));
return(System.Windows.Forms.NativeMethods.InvalidIntPtr);
Label_0171:
if (!this.DoFileOk(structure.lpOFN))
{
System.Windows.Forms.UnsafeNativeMethods.SetWindowLong(new HandleRef(null, hWnd), 0, new HandleRef(null, System.Windows.Forms.NativeMethods.InvalidIntPtr));
return(System.Windows.Forms.NativeMethods.InvalidIntPtr);
}
}
catch
{
if (this.dialogHWnd != IntPtr.Zero)
{
System.Windows.Forms.UnsafeNativeMethods.EndDialog(new HandleRef(this, this.dialogHWnd), IntPtr.Zero);
}
throw;
}
}
Label_01CF:
return(IntPtr.Zero);
}
