Re: [vdagent-win PATCH v5 1/6] Use GetModuleHandle to get some functions from user32 library

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On Mon, Jul 09, 2018 at 09:51:39AM +0100, Frediano Ziglio wrote:
> The library is surely already loaded as providing clipboard and
> other utilities we need.
> Avoid using LoadLibrary that increment the reference so we don't
> need to call FreeLibrary to cleanly decrement the reference.

Dunno, feels safer to me to load it explicitly if we need it rather than
assuming something else will have loaded it.

Christophe

> 
> Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> ---
>  vdagent/vdagent.cpp | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/vdagent/vdagent.cpp b/vdagent/vdagent.cpp
> index 423c3ee..dbf6556 100644
> --- a/vdagent/vdagent.cpp
> +++ b/vdagent/vdagent.cpp
> @@ -125,7 +125,6 @@ private:
>      static VDAgent* _singleton;
>      HWND _hwnd;
>      HWND _hwnd_next_viewer;
> -    HMODULE _user_lib;
>      PCLIPBOARD_OP _add_clipboard_listener;
>      PCLIPBOARD_OP _remove_clipboard_listener;
>      clipboard_owner_t _clipboard_owner;
> @@ -183,7 +182,6 @@ VDAgent* VDAgent::get()
>  VDAgent::VDAgent()
>      : _hwnd (NULL)
>      , _hwnd_next_viewer (NULL)
> -    , _user_lib (NULL)
>      , _add_clipboard_listener (NULL)
>      , _remove_clipboard_listener (NULL)
>      , _clipboard_owner (owner_none)
> @@ -269,9 +267,9 @@ bool VDAgent::run()
>          vd_printf("SetProcessShutdownParameters failed %lu", GetLastError());
>      }
>  
> -    _user_lib = LoadLibrary(L"User32.dll");
> +    HMODULE _user_lib = GetModuleHandle(L"User32");
>      if (!_user_lib) {
> -        vd_printf("LoadLibrary failed %lu", GetLastError());
> +        vd_printf("GetModuleHandle failed %lu", GetLastError());
>          return false;
>      }
>      _add_clipboard_listener =
> @@ -342,7 +340,6 @@ bool VDAgent::run()
>  
>  void VDAgent::cleanup()
>  {
> -    FreeLibrary(_user_lib);
>      CloseHandle(_vio_serial);
>  }
>  
> -- 
> 2.17.1
> 
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> Spice-devel@xxxxxxxxxxxxxxxxxxxxx
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