/// <summary>
/// Returns true if the thumbnail was removed from the taskbar; false if it was not.
/// </summary>
/// <returns>Returns true if the thumbnail was removed from the taskbar; false if it was not.</returns>
internal bool OnTabbedThumbnailClosed()
{
var closedHandler = TabbedThumbnailClosed;
if (closedHandler != null)
{
var closingEvent = GetTabbedThumbnailClosingEventArgs();
closedHandler(this, closingEvent);
if (closingEvent.Cancel)
{
return(false);
}
}
else
{
// No one is listening to these events. Forward the message to the main window
CoreNativeMethods.SendMessage(ParentWindowHandle, WindowMessage.NCDestroy, IntPtr.Zero, IntPtr.Zero);
}
// Remove it from the internal list as well as the taskbar
TaskbarManager.Instance.TabbedThumbnail.RemoveThumbnailPreview(this);
return(true);
}
static internal void SetShieldIcon(System.Windows.Forms.Button Button, bool Show)
{
IntPtr fRequired = new IntPtr(Show ? 1 : 0);
CoreNativeMethods.SendMessage(
Button.Handle,
ShellNativeMethods.SetShield,
IntPtr.Zero,
fRequired);
}
private int SendMessageHelper(TaskDialogNativeMethods.TaskDialogMessages message, int wparam, long lparam)
{
// Be sure to at least assert here - messages to invalid handles often just disappear silently
Debug.Assert(hWndDialog != null, "HWND for dialog is null during SendMessage");
return((int)CoreNativeMethods.SendMessage(
hWndDialog,
(uint)message,
(IntPtr)wparam,
new IntPtr(lparam)));
}
internal void OnTabbedThumbnailActivated()
{
if (TabbedThumbnailActivated != null)
{
TabbedThumbnailActivated(this, GetTabbedThumbnailEventArgs());
}
else
{
// No one is listening to these events.
// Forward the message to the main window
CoreNativeMethods.SendMessage(ParentWindowHandle, WindowMessage.ActivateApplication, new IntPtr(1), new IntPtr(Thread.CurrentThread.GetHashCode()));
}
}
internal void OnTabbedThumbnailMinimized()
{
if (TabbedThumbnailMinimized != null)
{
TabbedThumbnailMinimized(this, GetTabbedThumbnailEventArgs());
}
else
{
// No one is listening to these events.
// Forward the message to the main window
CoreNativeMethods.SendMessage(ParentWindowHandle, WindowMessage.SystemCommand, new IntPtr(TabbedThumbnailNativeMethods.ScMinimize), IntPtr.Zero);
}
}
internal void OnTabbedThumbnailMoved()
{
if (TabbedThumbnailMoved != null)
{
TabbedThumbnailMoved(this, GetTabbedThumbnailEventArgs());
}
else
{
// No one is listening to these events.
// Forward the message to the main window
CoreNativeMethods.SendMessage(ParentWindowHandle, TabbedThumbnailNativeMethods.WM_SYSCOMMAND, new IntPtr(TabbedThumbnailNativeMethods.SC_MOVE), IntPtr.Zero);
}
}
private int SendMessageHelper(TaskDialogNativeMethods.TaskDialogMessages message, int wparam, long lparam)
{
// Be sure to at least assert here -
// messages to invalid handles often just disappear silently
#pragma warning disable CS8073 // The result of the expression is always 'true' since a value of type 'IntPtr' is never equal to 'null' of type 'IntPtr?'
Debug.Assert(hWndDialog != null, "HWND for dialog is null during SendMessage");
#pragma warning restore CS8073 // The result of the expression is always 'true' since a value of type 'IntPtr' is never equal to 'null' of type 'IntPtr?'
return((int)CoreNativeMethods.SendMessage(
hWndDialog,
(uint)message,
(IntPtr)wparam,
new IntPtr(lparam)));
}
private static string GetNote(System.Windows.Forms.Button Button)
{
IntPtr retVal = CoreNativeMethods.SendMessage(
Button.Handle,
ShellNativeMethods.GetNoteLength,
IntPtr.Zero,
IntPtr.Zero);
// Add 1 for null terminator, to get the entire string back.
int len = ((int)retVal) + 1;
StringBuilder strBld = new StringBuilder(len);
retVal = CoreNativeMethods.SendMessage(Button.Handle, ShellNativeMethods.GetNote, ref len, strBld);
return(strBld.ToString());
}
internal void OnTabbedThumbnailClosed()
{
if (TabbedThumbnailClosed != null)
{
TabbedThumbnailClosed(this, GetTabbedThumbnailEventArgs());
}
else
{
// No one is listening to these events.
// Forward the message to the main window
CoreNativeMethods.SendMessage(ParentWindowHandle, TabbedThumbnailNativeMethods.WM_NCDESTROY, IntPtr.Zero, IntPtr.Zero);
}
// Remove it from the internal list as well as the taskbar
TaskbarManager.Instance.TabbedThumbnail.RemoveThumbnailPreview(this);
}
private static void SetNote(System.Windows.Forms.Button button, string text)
{
// This call will be ignored on versions earlier than Windows Vista.
CoreNativeMethods.SendMessage(button.Handle, ShellNativeMethods.SetNote, 0, text);
}