icon hide from taskbar and alt+tab key

[Steve]

I can hide the icon with this.ShowInTaskbar = false;
but I still can see the icon when press alt+tab, is there any way I can
hide the icon when press alt+tab?

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

P/Invoke is the answer :)

// Api functions
[DllImport("user32.dll",EntryPoint="SetForegroundWi ndow")]
public static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImport("user32.dll")]
public static extern int SetWindowLong( IntPtr window, int index, int
value);
[DllImport("user32.dll")]
public static extern int GetWindowLong( IntPtr window, int index);

const int GWL_EXSTYLE = -20;
const int WS_EX_TOOLWINDOW = 0x00000080;
const int WS_EX_APPWINDOW = 0x00040000;

int windowStyle = GetWindowLong(Handle, GWL_EXSTYLE);
SetWindowLong(Handle, GWL_EXSTYLE, windowStyle | WS_EX_TOOLWINDOW);
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Steve" <St***@discussions.microsoft.com> wrote in message
news:5D**********************************@microsof t.com...

I can hide the icon with this.ShowInTaskbar = false;
but I still can see the icon when press alt+tab, is there any way I can
hide the icon when press alt+tab?

[steve]

Ignacio,

It works, thanks a lot

"Ignacio Machin ( .NET/ C# MVP )" wrote:

Hi,

P/Invoke is the answer :)

// Api functions
[DllImport("user32.dll",EntryPoint="SetForegroundWi ndow")]
public static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImport("user32.dll")]
public static extern int SetWindowLong( IntPtr window, int index, int
value);
[DllImport("user32.dll")]
public static extern int GetWindowLong( IntPtr window, int index);

const int GWL_EXSTYLE = -20;
const int WS_EX_TOOLWINDOW = 0x00000080;
const int WS_EX_APPWINDOW = 0x00040000;

int windowStyle = GetWindowLong(Handle, GWL_EXSTYLE);
SetWindowLong(Handle, GWL_EXSTYLE, windowStyle | WS_EX_TOOLWINDOW);
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Steve" <St***@discussions.microsoft.com> wrote in message
news:5D**********************************@microsof t.com...

I can hide the icon with this.ShowInTaskbar = false;
but I still can see the icon when press alt+tab, is there any way I can
hide the icon when press alt+tab?