public TaskbarItemInfo()
{
if (!DesignerProperties.GetIsInDesignMode(this))
{
ITaskbarList taskbarList = null;
try
{
taskbarList = CLSID.CoCreateInstance <ITaskbarList>("56FDF344-FD6D-11d0-958A-006097C9A090");
taskbarList.HrInit();
this._taskbarList = (taskbarList as ITaskbarList3);
taskbarList = null;
}
finally
{
Utility.SafeRelease <ITaskbarList>(ref taskbarList);
}
this._overlaySize = new Size((double)NativeMethods.GetSystemMetrics(SM.CXSMICON), (double)NativeMethods.GetSystemMetrics(SM.CYSMICON));
}
this.ThumbButtonInfos = new ThumbButtonInfoCollection();
}
private HRESULT _UpdateThumbButtons(bool attached)
{
THUMBBUTTON[] array = new THUMBBUTTON[7];
HRESULT result = this._RegisterThumbButtons();
if (result.Failed)
{
return(result);
}
ThumbButtonInfoCollection thumbButtonInfos = this.ThumbButtonInfos;
HRESULT result2;
try
{
uint num = 0u;
if (!attached || thumbButtonInfos == null)
{
goto IL_1AE;
}
using (FreezableCollection <ThumbButtonInfo> .Enumerator enumerator = thumbButtonInfos.GetEnumerator())
{
while (enumerator.MoveNext())
{
ThumbButtonInfo current = enumerator.Current;
THUMBBUTTON tHUMBBUTTON = new THUMBBUTTON
{
iId = num,
dwMask = THB.ICON | THB.TOOLTIP | THB.FLAGS
};
switch (current.Visibility)
{
case Visibility.Visible:
goto IL_A5;
case Visibility.Hidden:
tHUMBBUTTON.dwFlags = (THBF.DISABLED | THBF.NOBACKGROUND);
tHUMBBUTTON.hIcon = IntPtr.Zero;
break;
case Visibility.Collapsed:
tHUMBBUTTON.dwFlags = THBF.HIDDEN;
break;
default:
goto IL_A5;
}
IL_146:
array[(int)((UIntPtr)num)] = tHUMBBUTTON;
num += 1u;
if (num != 7u)
{
continue;
}
break;
IL_A5:
tHUMBBUTTON.szTip = (current.Description ?? "");
tHUMBBUTTON.hIcon = this._GetHICONFromImageSource(current.ImageSource, this._overlaySize);
if (!current.IsBackgroundVisible)
{
tHUMBBUTTON.dwFlags |= THBF.NOBACKGROUND;
}
if (!current.IsEnabled)
{
tHUMBBUTTON.dwFlags |= THBF.DISABLED;
}
else
{
tHUMBBUTTON.dwFlags = tHUMBBUTTON.dwFlags;
}
if (!current.IsInteractive)
{
tHUMBBUTTON.dwFlags |= THBF.NONINTERACTIVE;
}
if (current.DismissWhenClicked)
{
tHUMBBUTTON.dwFlags |= THBF.DISMISSONCLICK;
goto IL_146;
}
goto IL_146;
}
goto IL_1AE;
}
IL_179:
array[(int)((UIntPtr)num)] = new THUMBBUTTON
{
iId = num,
dwFlags = THBF.DISABLED | THBF.NOBACKGROUND | THBF.HIDDEN,
dwMask = THB.ICON | THB.TOOLTIP | THB.FLAGS
};
num += 1u;
IL_1AE:
if (num < 7u)
{
goto IL_179;
}
result2 = this._taskbarList.ThumbBarUpdateButtons(this._hwndSource.Handle, (uint)array.Length, array);
}
finally
{
THUMBBUTTON[] array2 = array;
for (int i = 0; i < array2.Length; i++)
{
THUMBBUTTON tHUMBBUTTON2 = array2[i];
IntPtr hIcon = tHUMBBUTTON2.hIcon;
if (IntPtr.Zero != hIcon)
{
Utility.SafeDestroyIcon(ref hIcon);
}
}
}
return(result2);
}