// The new task dialog does not support the existing Win32 functions for closing (e.g. EndDialog()); instead,
// a "click button" message is sent. In this case, we're abstracting out to say that the TaskDialog consumer can
// simply call "Close" and we'll "click" the cancel button. Note that the cancel button doesn't actually
// have to exist for this to work.
internal void NativeClose()
{
showState = NativeDialogShowState.Closing;
SendMessageHelper(
NativeMethods.TASKDIALOG_MESSAGES.TDM_CLICK_BUTTON,
(int)NativeMethods.TASKDIALOG_COMMON_BUTTON_RETURN_ID.IDCANCEL, 0);
}
internal void NativeShow()
{
// Applies config struct and other settings, then
// calls main Win32 function.
if (settings == null)
{
throw new InvalidOperationException(
"An error has occurred in dialog configuration.");
}
// Do a last-minute parse of the various dialog control lists,
// and only allocate the memory at the last minute.
MarshalDialogControlStructs();
// Make the call and show the dialog.
// NOTE: this call is BLOCKING, though the thread
// WILL re-enter via the DialogProc.
try
{
showState = NativeDialogShowState.Showing;
// Here is the way we use "vanilla" P/Invoke to call
// TaskDialogIndirect().
HRESULT hresult = NativeMethods.TaskDialogIndirect(
nativeDialogConfig,
out selectedButtonID,
out selectedRadioButtonID,
out checkBoxChecked);
if (ErrorHelper.Failed(hresult))
{
string msg;
switch (hresult)
{
case HRESULT.E_INVALIDARG:
msg = "Invalid arguments to Win32 call.";
break;
case HRESULT.E_OUTOFMEMORY:
msg = "Dialog contents too complex.";
break;
default:
msg = String.Format(
"An unexpected internal error occurred in the Win32 call:{0:x}",
hresult);
break;
}
Exception e = Marshal.GetExceptionForHR((int)hresult);
throw new Win32Exception(msg, e);
}
}
finally
{
showState = NativeDialogShowState.Closed;
}
}
public bool?ShowDialog()
{
bool?result = null;
try
{
// Fetch derived native dialog (i.e. Save or Open)
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Process custom controls, and validate overall state
ProcessControls();
ValidateCurrentDialogState();
// Apply outer properties to native dialog instance
ApplyNativeSettings(nativeDialog);
// Show dialog
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information
if (ErrorHelper.Matches(hresult, Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames - though only if user didn't cancel
PopulateWithFileNames(fileNames);
}
result = !canceled.Value;
}
catch
{
MessageBox.Show("Folder browser dialog unavailable.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
CleanUpNativeFileDialog();
showState = NativeDialogShowState.Closed;
}
return(result);
}
/// <summary>
/// Displays the dialog.
/// </summary>
/// <returns>A <see cref="Microsoft.SDK.Samples.VistaBridge.Library.CommonFileDialogResult"/> object.</returns>
public CommonFileDialogResult ShowDialog()
{
CommonFileDialogResult result;
try
{
// Fetch derived native dialog (i.e. Save or Open).
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Apply outer properties to native dialog instance.
ApplyNativeSettings(nativeDialog);
InitializeEventSink(nativeDialog);
// Clear user data if Reset has been called
// since the last show.
if (resetSelections)
{
resetSelections = false;
}
// Show dialog.
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(
CommonFileDialog.GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information.
if (ErrorHelper.Matches(hresult,
Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames if user didn't cancel.
PopulateWithFileNames(fileNames);
}
result = new CommonFileDialogResult(canceled.Value);
}
finally
{
CleanUpNativeFileDialog();
}
return(result);
}
public CommonFileDialogResult ShowDialog()
{
CommonFileDialogResult result;
try
{
// Fetch derived native dialog (i.e. Save or Open)
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Process custom controls, and validate overall state
ProcessControls();
ValidateCurrentDialogState();
// Apply outer properties to native dialog instance
ApplyNativeSettings(nativeDialog);
InitializeEventSink(nativeDialog);
// Show dialog
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information
if (ErrorHelper.Matches(hresult, Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames - though only if user didn't cancel
PopulateWithFileNames(fileNames);
}
result = new CommonFileDialogResult(canceled.Value);
}
finally
{
CleanUpNativeFileDialog();
}
return(result);
}
public void Dispose()
{
Marshal.ReleaseComObject(Dialog);
State = NativeDialogShowState.Closed;
}
internal void NativeShow()
{
// Applies config struct and other settings, then
// calls main Win32 function
if (settings == null)
{
throw new InvalidOperationException("An error has occurred in dialog configuration.");
}
// Do a last-minute parse of the various dialog control lists, only
// allocate the memory at the last minute
MarshalDialogControlStructs(settings);
// Make the call and show the dialog.
// NOTE: this call is BLOCKING, though the thread WILL re-enter via the DialogProc
try
{
showState = NativeDialogShowState.Showing;
// Here is the way we would use "vanilla" PInvoke to call TaskDialogIndirect;
// but if we did so here, we'd be at the mercy of the CLR's native DLL cache -
// see below for more details.
// HRESULT hresult = UnsafeNativeMethods.TaskDialogIndirect(
// nativeDialogConfig,
// out selectedButtonID,
// out selectedRadioButtonID,
// out checkBoxChecked);
// Instead, we load comctl and bind to TaskDialogIndirect
// We do it this way so we can rigidly control which version of comctl32
// we get loaded, as the CLR's PInvoke mechanism maintains a DLL cache that is
// NOT invalidated when the OS activation context is changed such that different
// DLL versions are needed
// TEST: Try to get the activation context goo working
//DllVersionManager.CreateCorrectActivationContext();
// TEST: Currently no worky, as the activation context isn't getting pushed properly
IntPtr tdi = DllVersionManager.GetNativeFunctionPointer(
ExternDll.ComCtl32, "TaskDialogIndirect");
// TEST: temporarily using the full path to v6 comctl32
//IntPtr tdi = DllVersionManager.GetFunctionPointer(
// ExternDll.FullPathComCtl32, "TaskDialogIndirect");
//DllVersionManager.ResetActivationContext();
SafeNativeMethods.TDIDelegate taskDialogFunctionPointer = (SafeNativeMethods.TDIDelegate)
Marshal.GetDelegateForFunctionPointer(tdi, typeof(SafeNativeMethods.TDIDelegate));
// Invoke TaskDialogIndirect!
HRESULT hresult = taskDialogFunctionPointer(
nativeDialogConfig,
out selectedButtonID,
out selectedRadioButtonID,
out checkBoxChecked);
if (ErrorHelper.Failed(hresult))
{
string msg;
switch (hresult)
{
case HRESULT.E_INVALIDARG:
msg = "Invalid arguments to Win32 call";
break;
case HRESULT.E_OUTOFMEMORY:
msg = "Dialog contents too complex";
break;
default:
msg = "An unexpected internal error occurred in the Win32 call: " + hresult;
break;
}
throw new Win32Exception(msg);
}
}
finally
{
showState = NativeDialogShowState.Closed;
}
}
public CommonFileDialogResult ShowDialog()
{
CommonFileDialogResult result;
try
{
// Fetch derived native dialog (i.e. Save or Open)
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Process custom controls, and validate overall state
ProcessControls();
ValidateCurrentDialogState();
// Apply outer properties to native dialog instance
ApplyNativeSettings(nativeDialog);
InitializeEventSink(nativeDialog);
// Show dialog
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information
if (ErrorHelper.Matches(hresult, Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames - though only if user didn't cancel
PopulateWithFileNames(fileNames);
}
result = new CommonFileDialogResult(canceled.Value);
}
finally
{
CleanUpNativeFileDialog();
}
return result;
}
/// <summary>
/// Displays the dialog.
/// </summary>
/// <returns>A <see cref="Microsoft.SDK.Samples.VistaBridge.Library.CommonFileDialogResult"/> object.</returns>
public CommonFileDialogResult ShowDialog()
{
CommonFileDialogResult result;
try
{
// Fetch derived native dialog (i.e. Save or Open).
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Apply outer properties to native dialog instance.
ApplyNativeSettings(nativeDialog);
InitializeEventSink(nativeDialog);
// Clear user data if Reset has been called
// since the last show.
if (resetSelections)
{
resetSelections = false;
}
// Show dialog.
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(
CommonFileDialog.GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information.
if (ErrorHelper.Matches(hresult,
Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames if user didn't cancel.
PopulateWithFileNames(fileNames);
}
result = new CommonFileDialogResult(canceled.Value);
}
finally
{
CleanUpNativeFileDialog();
}
return result;
}
internal void NativeShow()
{
// Applies config struct and other settings, then
// calls main Win32 function.
if (settings == null)
throw new InvalidOperationException(
"An error has occurred in dialog configuration.");
// Do a last-minute parse of the various dialog control lists,
// and only allocate the memory at the last minute.
MarshalDialogControlStructs();
// Make the call and show the dialog.
// NOTE: this call is BLOCKING, though the thread
// WILL re-enter via the DialogProc.
try
{
showState = NativeDialogShowState.Showing;
// Here is the way we use "vanilla" P/Invoke to call
// TaskDialogIndirect().
HRESULT hresult = NativeMethods.TaskDialogIndirect(
nativeDialogConfig,
out selectedButtonID,
out selectedRadioButtonID,
out checkBoxChecked );
if (ErrorHelper.Failed(hresult))
{
string msg;
switch (hresult)
{
case HRESULT.E_INVALIDARG:
msg = "Invalid arguments to Win32 call.";
break;
case HRESULT.E_OUTOFMEMORY:
msg = "Dialog contents too complex.";
break;
default:
msg = String.Format(
"An unexpected internal error occurred in the Win32 call:{0:x}",
hresult);
break;
}
Exception e = Marshal.GetExceptionForHR((int)hresult);
throw new Win32Exception(msg,e);
}
}
finally
{
showState = NativeDialogShowState.Closed;
}
}
// The new task dialog does not support the existing
// Win32 functions for closing (e.g. EndDialog()); instead,
// a "click button" message is sent. In this case, we're
// abstracting out to say that the TaskDialog consumer can
// simply call "Close" and we'll "click" the cancel button.
// Note that the cancel button doesn't actually
// have to exist for this to work.
internal void NativeClose()
{
showState = NativeDialogShowState.Closing;
SendMessageHelper(
SafeNativeMethods.TASKDIALOG_MESSAGES.TDM_CLICK_BUTTON,
(int)SafeNativeMethods.TASKDIALOG_COMMON_BUTTON_RETURN_ID.IDCANCEL, 0);
}
public bool?ShowDialog()
{
bool?result = null;
try
{
// Fetch derived native dialog (i.e. Save or Open)
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Process custom controls, and validate overall state
ProcessControls();
ValidateCurrentDialogState();
// Apply outer properties to native dialog instance
ApplyNativeSettings(nativeDialog);
// Show dialog
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information
if (ErrorHelper.Matches(hresult, Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames - though only if user didn't cancel
PopulateWithFileNames(fileNames);
}
result = !canceled.Value;
}
catch
{
//If Vista Style dialog is unavailable, fall back to Windows Forms
System.Windows.Forms.FolderBrowserDialog dialog = new System.Windows.Forms.FolderBrowserDialog
{
SelectedPath = fileName,
ShowNewFolderButton = true,
Description = this.Title
};
result = (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK);
if (result.HasValue && result.Value)
{
canceled = false;
fileNames.Clear();
fileNames.Add(dialog.SelectedPath);
}
else
{
fileNames.Clear();
canceled = true;
}
}
finally
{
CleanUpNativeFileDialog();
showState = NativeDialogShowState.Closed;
}
return(result);
}
internal void NativeShow()
{
// Applies config struct and other settings, then
// calls main Win32 function
if (settings == null)
throw new InvalidOperationException("An error has occurred in dialog configuration.");
// Do a last-minute parse of the various dialog control lists, only
// allocate the memory at the last minute
MarshalDialogControlStructs(settings);
// Make the call and show the dialog.
// NOTE: this call is BLOCKING, though the thread WILL re-enter via the DialogProc
try
{
showState = NativeDialogShowState.Showing;
// Here is the way we would use "vanilla" PInvoke to call TaskDialogIndirect;
// but if we did so here, we'd be at the mercy of the CLR's native DLL cache -
// see below for more details.
// HRESULT hresult = UnsafeNativeMethods.TaskDialogIndirect(
// nativeDialogConfig,
// out selectedButtonID,
// out selectedRadioButtonID,
// out checkBoxChecked);
// Instead, we load comctl and bind to TaskDialogIndirect
// We do it this way so we can rigidly control which version of comctl32
// we get loaded, as the CLR's PInvoke mechanism maintains a DLL cache that is
// NOT invalidated when the OS activation context is changed such that different
// DLL versions are needed
// TEST: Try to get the activation context goo working
//DllVersionManager.CreateCorrectActivationContext();
// TEST: Currently no worky, as the activation context isn't getting pushed properly
IntPtr tdi = DllVersionManager.GetNativeFunctionPointer(
ExternDll.ComCtl32, "TaskDialogIndirect");
// TEST: temporarily using the full path to v6 comctl32
//IntPtr tdi = DllVersionManager.GetFunctionPointer(
// ExternDll.FullPathComCtl32, "TaskDialogIndirect");
//DllVersionManager.ResetActivationContext();
SafeNativeMethods.TDIDelegate taskDialogFunctionPointer = (SafeNativeMethods.TDIDelegate)
Marshal.GetDelegateForFunctionPointer(tdi, typeof(SafeNativeMethods.TDIDelegate));
// Invoke TaskDialogIndirect!
HRESULT hresult = taskDialogFunctionPointer(
nativeDialogConfig,
out selectedButtonID,
out selectedRadioButtonID,
out checkBoxChecked);
if (ErrorHelper.Failed(hresult))
{
string msg;
switch (hresult)
{
case HRESULT.E_INVALIDARG:
msg = "Invalid arguments to Win32 call";
break;
case HRESULT.E_OUTOFMEMORY:
msg = "Dialog contents too complex";
break;
default:
msg = "An unexpected internal error occurred in the Win32 call: " + hresult;
break;
}
throw new Win32Exception(msg);
}
}
finally
{
showState = NativeDialogShowState.Closed;
}
}
public bool? ShowDialog()
{
bool? result = null;
try
{
// Fetch derived native dialog (i.e. Save or Open)
InitializeNativeFileDialog();
nativeDialog = GetNativeFileDialog();
// Process custom controls, and validate overall state
ProcessControls();
ValidateCurrentDialogState();
// Apply outer properties to native dialog instance
ApplyNativeSettings(nativeDialog);
// Show dialog
showState = NativeDialogShowState.Showing;
int hresult = nativeDialog.Show(GetHandleFromWindow(parentWindow));
showState = NativeDialogShowState.Closed;
// Create return information
if (ErrorHelper.Matches(hresult, Win32ErrorCode.ERROR_CANCELLED))
{
canceled = true;
fileNames.Clear();
}
else
{
canceled = false;
// Populate filenames - though only if user didn't cancel
PopulateWithFileNames(fileNames);
}
result = !canceled.Value;
}
catch
{
//If Vista Style dialog is unavailable, fall back to Windows Forms
System.Windows.Forms.FolderBrowserDialog dialog = new System.Windows.Forms.FolderBrowserDialog();
dialog.SelectedPath = fileName;
dialog.ShowNewFolderButton = true;
dialog.Description = this.Title;
result = (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK);
if (result.HasValue && result.Value)
{
canceled = false;
fileNames.Clear();
fileNames.Add(dialog.SelectedPath);
}
else
{
fileNames.Clear();
canceled = true;
}
}
finally
{
CleanUpNativeFileDialog();
showState = NativeDialogShowState.Closed;
}
return result;
}
internal void NativeShow()
{
// Applies config struct and other settings, then
// calls main Win32 function.
if (settings == null)
{
throw new InvalidOperationException(
"An error has occurred in dialog configuration.");
}
// Do a last-minute parse of the various dialog control lists,
// and only allocate the memory at the last minute.
MarshalDialogControlStructs();
// Make the call and show the dialog.
// NOTE: this call is BLOCKING, though the thread
// WILL re-enter via the DialogProc.
try
{
showState = NativeDialogShowState.Showing;
// Here is the way we would use "vanilla" PInvoke to call TaskDialogIndirect;
// but if we did so here, we'd be at the mercy of the CLR's native DLL cache -
// see below for more details.
// HRESULT hresult = NativeMethods.TaskDialogIndirect(
// nativeDialogConfig,
// out selectedButtonID,
// out selectedRadioButtonID,
// out checkBoxChecked);
// Instead, we load comctl and bind to TaskDialogIndirect
// We do it this way so we can rigidly control
// which version of comctl32 is loaded,
// The CLR's PInvoke mechanism maintains a DLL cache that is
// NOT invalidated when the OS activation context is changed
// such that different DLL versions are needed.
IntPtr tdi = DllVersionManager.GetNativeFunctionPointer(
ExternDll.ComCtl32, "TaskDialogIndirect");
NativeMethods.TDIDelegate taskDialogFunctionPointer =
(NativeMethods.TDIDelegate)
Marshal.GetDelegateForFunctionPointer(
tdi,
typeof(NativeMethods.TDIDelegate)
);
// Invoke TaskDialogIndirect.
HRESULT hresult = taskDialogFunctionPointer(
nativeDialogConfig,
out selectedButtonID,
out selectedRadioButtonID,
out checkBoxChecked);
if (ErrorHelper.Failed(hresult))
{
string msg;
switch (hresult)
{
case HRESULT.E_INVALIDARG:
msg = "Invalid arguments to Win32 call.";
break;
case HRESULT.E_OUTOFMEMORY:
msg = "Dialog contents too complex.";
break;
default:
msg = String.Format(
"An unexpected internal error occurred in the Win32 call:{0:x}",
hresult);
break;
}
Exception e = Marshal.GetExceptionForHR((int)hresult);
throw new Win32Exception(msg, e);
}
}
finally
{
showState = NativeDialogShowState.Closed;
}
}
