I'm trying to add a DeskBand object to the system tray programmatically using this code:
[ComImport, Guid("6D67E846-5B9C-4db8-9CBC-DDE12F4254F1"),
InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
public interface ITrayDeskband
{
[PreserveSig]
int ShowDeskBand([In, MarshalAs(UnmanagedType.Struct)] ref Guid clsid);
[PreserveSig]
int HideDeskBand([In, MarshalAs(UnmanagedType.Struct)] ref Guid clsid);
[PreserveSig]
int IsDeskBandShown([In, MarshalAs(UnmanagedType.Struct)] ref Guid clsid);
[PreserveSig]
int DeskBandRegistrationChanged();
}
private void ShowDeskBand()
{
ITrayDeskband obj = null;
Type trayDeskbandType = System.Type.GetTypeFromCLSID(new Guid("E6442437-6C68-4f52-94DD-2CFED267EFB9"));
try
{
Guid deskbandGuid = new Guid("FE0829F8-EDFA-46B6-87E0-636C8D953E33"); // My Deskband | TestToolbar
obj = (ITrayDeskband)Activator.CreateInstance(trayDeskbandType);
obj.DeskBandRegistrationChanged();
int hr = obj.ShowDeskBand(ref deskbandGuid);
if (hr != 0)
{
throw new Exception("Error while trying to show deskband: " + hr);
}
obj.DeskBandRegistrationChanged();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
if (obj != null && Marshal.IsComObject(obj))
Marshal.ReleaseComObject(obj);
}
}
Source: http://www.pinvoke.net/default.aspx/Interfaces/ITrayDeskband.html
My DeskBand object is created from the "BandObjectsLib" from this sample: http://www.codeproject.com/Articles/14141/Band-Objects-NET-2-0-Redux
It looks like this:
[Guid("FE0829F8-EDFA-46B6-87E0-636C8D953E33")]
[BandObject("TestToolbar", BandObjectStyle.Horizontal | BandObjectStyle.TaskbarToolBar, HelpText = "Testing this toolbar")]
public class TestToolbar : BandObject
{
public TestToolbar()
{
ProgressBar pb = new ProgressBar();
pb.Maximum = 100;
pb.Minimum = 0;
pb.Value = 50;
this.Controls.AddRange(new System.Windows.Forms.Control[] { pb });
}
}
However, when trying to add the DeskBand object all I get is my exception telling me the error code: -2147467259 This error code translates to a 0x80004005 and according to MSDN that is an E_FAIL: http://msdn.microsoft.com/en-us/library/windows/desktop/aa378137.aspx
I'm basicly stuck here since this is honestly not my area of expertise. I was hoping that there was someone who might be more experienced and could help me out? Thanks in advance!
