private void SecureDialogThread(object oParam)
{
try
{
SecureThreadParams stp = oParam as SecureThreadParams;
if (stp == null)
{
Debug.Assert(false); return;
}
NativeMethods.SetThreadDesktop(stp.ThreadDesktop);
BackgroundForm formBack = new BackgroundForm(
stp.BackgroundBitmap);
formBack.Show();
NativeMethods.SwitchDesktop(stp.ThreadDesktop);
stp.Result = m_form.ShowDialog(formBack);
formBack.Hide();
}
catch (Exception) { Debug.Assert(false); }
}
private void SecureDialogThread(object oParam)
{
SecureThreadInfo stp = (oParam as SecureThreadInfo);
if (stp == null)
{
Debug.Assert(false); return;
}
List <BackgroundForm> lBackForms = new List <BackgroundForm>();
BackgroundForm formBackPrimary = null;
// bool bLangBar = false;
try
{
if (!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if (NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Disabling IME is not required anymore; we terminate
// CtfMon.exe child processes manually
// try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
// catch(Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
Screen[] vScreens = Screen.AllScreens;
Screen scPrimary = Screen.PrimaryScreen;
Debug.Assert(vScreens.Length == stp.BackgroundBitmaps.Count);
int sMin = Math.Min(vScreens.Length, stp.BackgroundBitmaps.Count);
for (int i = sMin - 1; i >= 0; --i)
{
Bitmap bmpBack = stp.BackgroundBitmaps[i];
if (bmpBack == null)
{
continue;
}
Debug.Assert(bmpBack.Size == vScreens[i].Bounds.Size);
BackgroundForm formBack = new BackgroundForm(bmpBack,
vScreens[i]);
lBackForms.Add(formBack);
if (vScreens[i].Equals(scPrimary))
{
formBackPrimary = formBack;
}
formBack.Show();
}
if (formBackPrimary == null)
{
Debug.Assert(false);
if (lBackForms.Count > 0)
{
formBackPrimary = lBackForms[lBackForms.Count - 1];
}
}
ProcessMessagesEx();
if (!NativeMethods.SwitchDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
}
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if (f == null)
{
Debug.Assert(false); return;
}
if (Program.Config.UI.SecureDesktopPlaySound)
{
UIUtil.PlayUacSound();
}
// bLangBar = ShowLangBar(true);
lock (stp) { stp.State = SecureThreadState.ShowingDialog; }
stp.DialogResult = f.ShowDialog(formBackPrimary);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch (Exception) { Debug.Assert(false); }
finally
{
// if(bLangBar) ShowLangBar(false);
foreach (BackgroundForm formBack in lBackForms)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch (Exception) { Debug.Assert(false); }
}
lock (stp) { stp.State = SecureThreadState.Terminated; }
}
}
private void SecureDialogThread(object oParam)
{
BackgroundForm formBack = null;
try
{
SecureThreadParams stp = (oParam as SecureThreadParams);
if(stp == null) { Debug.Assert(false); return; }
if(!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if(NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Creating a window on the new desktop spawns a CtfMon.exe child
// process by default. On Windows Vista, this process is terminated
// correctly when the desktop is closed. However, on Windows 7 it
// isn't terminated (probably a bug); creating multiple desktops
// accumulates CtfMon.exe child processes. In order to prevent this,
// we simply disable IME for the new desktop thread (CtfMon.exe then
// isn't loaded automatically).
try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
catch(Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
formBack = new BackgroundForm(stp.BackgroundBitmap);
formBack.Show();
ProcessMessagesEx();
if(!NativeMethods.SwitchDesktop(stp.ThreadDesktop)) { Debug.Assert(false); }
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if(f == null) { Debug.Assert(false); return; }
if(Program.Config.UI.SecureDesktopPlaySound)
UIUtil.PlayUacSound();
stp.DialogResult = f.ShowDialog(formBack);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch(Exception) { Debug.Assert(false); }
finally
{
if(formBack != null)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch(Exception) { Debug.Assert(false); }
}
}
}
private void SecureDialogThread(object oParam)
{
try
{
SecureThreadParams stp = oParam as SecureThreadParams;
if(stp == null) { Debug.Assert(false); return; }
NativeMethods.SetThreadDesktop(stp.ThreadDesktop);
BackgroundForm formBack = new BackgroundForm(
stp.BackgroundBitmap);
formBack.Show();
NativeMethods.SwitchDesktop(stp.ThreadDesktop);
stp.Result = m_form.ShowDialog(formBack);
formBack.Hide();
}
catch(Exception) { Debug.Assert(false); }
}
private void SecureDialogThread(object oParam)
{
BackgroundForm formBack = null;
try
{
SecureThreadParams stp = (oParam as SecureThreadParams);
if (stp == null)
{
Debug.Assert(false); return;
}
if (!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if (NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Creating a window on the new desktop spawns a CtfMon.exe child
// process by default. On Windows Vista, this process is terminated
// correctly when the desktop is closed. However, on Windows 7 it
// isn't terminated (probably a bug); creating multiple desktops
// accumulates CtfMon.exe child processes. In order to prevent this,
// we simply disable IME for the new desktop thread (CtfMon.exe then
// isn't loaded automatically).
try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
catch (Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
formBack = new BackgroundForm(stp.BackgroundBitmap);
formBack.Show();
ProcessMessagesEx();
if (!NativeMethods.SwitchDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
}
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if (f == null)
{
Debug.Assert(false); return;
}
if (Program.Config.UI.SecureDesktopPlaySound)
{
UIUtil.PlayUacSound();
}
stp.DialogResult = f.ShowDialog(formBack);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch (Exception) { Debug.Assert(false); }
finally
{
if (formBack != null)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch (Exception) { Debug.Assert(false); }
}
}
}
private void SecureDialogThread(object oParam)
{
BackgroundForm formBack = null;
SecureThreadInfo stp = (oParam as SecureThreadInfo);
if (stp == null)
{
Debug.Assert(false); return;
}
try
{
if (!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if (NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Disabling IME is not required anymore; we terminate
// CtfMon.exe child processes manually
// try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
// catch(Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
formBack = new BackgroundForm(stp.BackgroundBitmap);
formBack.Show();
ProcessMessagesEx();
if (!NativeMethods.SwitchDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
}
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if (f == null)
{
Debug.Assert(false); return;
}
if (Program.Config.UI.SecureDesktopPlaySound)
{
UIUtil.PlayUacSound();
}
lock (stp) { stp.State = SecureThreadState.ShowingDialog; }
stp.DialogResult = f.ShowDialog(formBack);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch (Exception) { Debug.Assert(false); }
finally
{
if (formBack != null)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch (Exception) { Debug.Assert(false); }
}
lock (stp) { stp.State = SecureThreadState.Terminated; }
}
}
private void SecureDialogThread(object oParam)
{
SecureThreadInfo stp = (oParam as SecureThreadInfo);
if(stp == null) { Debug.Assert(false); return; }
List<BackgroundForm> lBackForms = new List<BackgroundForm>();
BackgroundForm formBackPrimary = null;
// bool bLangBar = false;
try
{
if(!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if(NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Disabling IME is not required anymore; we terminate
// CtfMon.exe child processes manually
// try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
// catch(Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
Screen[] vScreens = Screen.AllScreens;
Screen scPrimary = Screen.PrimaryScreen;
Debug.Assert(vScreens.Length == stp.BackgroundBitmaps.Count);
int sMin = Math.Min(vScreens.Length, stp.BackgroundBitmaps.Count);
for(int i = sMin - 1; i >= 0; --i)
{
Bitmap bmpBack = stp.BackgroundBitmaps[i];
if(bmpBack == null) continue;
Debug.Assert(bmpBack.Size == vScreens[i].Bounds.Size);
BackgroundForm formBack = new BackgroundForm(bmpBack,
vScreens[i]);
lBackForms.Add(formBack);
if(vScreens[i].Equals(scPrimary))
formBackPrimary = formBack;
formBack.Show();
}
if(formBackPrimary == null)
{
Debug.Assert(false);
if(lBackForms.Count > 0)
formBackPrimary = lBackForms[lBackForms.Count - 1];
}
ProcessMessagesEx();
if(!NativeMethods.SwitchDesktop(stp.ThreadDesktop)) { Debug.Assert(false); }
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if(f == null) { Debug.Assert(false); return; }
if(Program.Config.UI.SecureDesktopPlaySound)
UIUtil.PlayUacSound();
// bLangBar = ShowLangBar(true);
lock(stp) { stp.State = SecureThreadState.ShowingDialog; }
stp.DialogResult = f.ShowDialog(formBackPrimary);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch(Exception) { Debug.Assert(false); }
finally
{
// if(bLangBar) ShowLangBar(false);
foreach(BackgroundForm formBack in lBackForms)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch(Exception) { Debug.Assert(false); }
}
lock(stp) { stp.State = SecureThreadState.Terminated; }
}
}
private void SecureDialogThread(object oParam)
{
SecureThreadInfo stp = (oParam as SecureThreadInfo);
if (stp == null)
{
Debug.Assert(false); return;
}
List <BackgroundForm> lBackForms = new List <BackgroundForm>();
BackgroundForm formBackPrimary = null;
// bool bLangBar = false;
try
{
if (!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if (NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Disabling the IME was not required, because we terminate
// CtfMon.exe child processes manually. However, since Sept. 2019,
// there is an IME bug resulting in a black screen and/or an
// IME/CTF process with high CPU load;
// https://sourceforge.net/p/keepass/bugs/1881/
// https://keepass.info/help/kb/sec_desk.html#ime
try
{
ulong uif = Program.Config.UI.UIFlags;
if ((uif & (ulong)AceUIFlags.SecureDesktopIme) == 0)
{
NativeMethods.ImmDisableIME(0); // Always false on 2000/XP
}
}
catch (Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
Screen[] vScreens = Screen.AllScreens;
Screen scPrimary = Screen.PrimaryScreen;
Debug.Assert(vScreens.Length == stp.BackgroundBitmaps.Count);
int sMin = Math.Min(vScreens.Length, stp.BackgroundBitmaps.Count);
for (int i = sMin - 1; i >= 0; --i)
{
Bitmap bmpBack = stp.BackgroundBitmaps[i];
if (bmpBack == null)
{
continue;
}
Debug.Assert(bmpBack.Size == vScreens[i].Bounds.Size);
BackgroundForm formBack = new BackgroundForm(bmpBack,
vScreens[i]);
lBackForms.Add(formBack);
if (vScreens[i].Equals(scPrimary))
{
formBackPrimary = formBack;
}
formBack.Show();
}
if (formBackPrimary == null)
{
Debug.Assert(false);
if (lBackForms.Count > 0)
{
formBackPrimary = lBackForms[lBackForms.Count - 1];
}
}
ProcessMessagesEx();
if (!NativeMethods.SwitchDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
}
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if (f == null)
{
Debug.Assert(false); return;
}
if (Program.Config.UI.SecureDesktopPlaySound)
{
UIUtil.PlayUacSound();
}
// bLangBar = ShowLangBar(true);
lock (stp) { stp.State = SecureThreadState.ShowingDialog; }
stp.DialogResult = f.ShowDialog(formBackPrimary);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch (Exception) { Debug.Assert(false); }
finally
{
// if(bLangBar) ShowLangBar(false);
foreach (BackgroundForm formBack in lBackForms)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch (Exception) { Debug.Assert(false); }
}
lock (stp) { stp.State = SecureThreadState.Terminated; }
}
}
private void SecureDialogThread(object oParam)
{
BackgroundForm formBack = null;
// bool bLangBar = false;
SecureThreadInfo stp = (oParam as SecureThreadInfo);
if(stp == null) { Debug.Assert(false); return; }
try
{
if(!NativeMethods.SetThreadDesktop(stp.ThreadDesktop))
{
Debug.Assert(false);
return;
}
ProcessMessagesEx();
// Test whether we're really on the secure desktop
if(NativeMethods.GetThreadDesktop(NativeMethods.GetCurrentThreadId()) !=
stp.ThreadDesktop)
{
Debug.Assert(false);
return;
}
// Disabling IME is not required anymore; we terminate
// CtfMon.exe child processes manually
// try { NativeMethods.ImmDisableIME(0); } // Always false on 2000/XP
// catch(Exception) { Debug.Assert(!WinUtil.IsAtLeastWindows2000); }
ProcessMessagesEx();
formBack = new BackgroundForm(stp.BackgroundBitmap);
formBack.Show();
ProcessMessagesEx();
if(!NativeMethods.SwitchDesktop(stp.ThreadDesktop)) { Debug.Assert(false); }
ProcessMessagesEx();
Form f = m_fnConstruct(stp.FormConstructParam);
if(f == null) { Debug.Assert(false); return; }
if(Program.Config.UI.SecureDesktopPlaySound)
UIUtil.PlayUacSound();
// bLangBar = ShowLangBar(true);
lock(stp) { stp.State = SecureThreadState.ShowingDialog; }
stp.DialogResult = f.ShowDialog(formBack);
stp.ResultObject = m_fnResultBuilder(f);
UIUtil.DestroyForm(f);
}
catch(Exception) { Debug.Assert(false); }
finally
{
// if(bLangBar) ShowLangBar(false);
if(formBack != null)
{
try
{
formBack.Close();
UIUtil.DestroyForm(formBack);
}
catch(Exception) { Debug.Assert(false); }
}
lock(stp) { stp.State = SecureThreadState.Terminated; }
}
}
