How to change Form's icon and tray icon?

See more:

C++

C++/CLI

Visual-Studio

Hello guys,

is there a way to change the GUI / Form icon and tray icon programmatically?
I use Visual Studio 2013 and want to change this. But i want to use an embedded resource icon, i don't like to use this with a path to the file on my disk.

My actual code I have is following

System::ComponentModel::ComponentResourceManager^  resources = (gcnew System::ComponentModel::ComponentResourceManager(frmMain::typeid));
this->Icon = (cli::safe_cast<System::Drawing::Icon^>(resources->GetObject(L"NosBackup.NBIcoData.Icon.IDI_ICON1.ico")));

But it doesn't change the Icon.

Thanks in advance