webview2_com_sys::Windows::Win32::UI::Shell

Function SHSetUnreadMailCountW

Source 
pub unsafe fn SHSetUnreadMailCountW<'a>(
    pszmailaddress: impl IntoParam<'a, PWSTR>,
    dwcount: u32,
    pszshellexecutecommand: impl IntoParam<'a, PWSTR>,
) -> Result<()>