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W32: eliminate busy cursor when a rundll32-hosted child runs

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Even though GetStartupInfo() in g_win32_run_session_bus() would
tell us that STARTF_FORCEONFEEDBACK flag is not set, it still
affects the rundll32 process for some reason.

This means that Windows WM changes mouse cursor to IDC_APPSTARTING for
a few seconds when rundll32 runs g_win32_run_session_bus(). Since
g_win32_run_session_bus() never satisfies the conditions set by
STARTF_FORCEONFEEDBACK, the busy cursor only goes away after a
timeout.

Fix this by explicitly running GetMessage(). To ensure that GetMessage()
doesn't block, post a quit message immediately before calling it.

https://bugzilla.gnome.org/show_bug.cgi?id=760694
This commit is contained in:
Руслан Ижбулатов 2016-01-15 22:25:32 +00:00
parent 5efc8686ee
commit 74b1dd87b5
1 changed files with 21 additions and 0 deletions
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21
gio/gdbusaddress.c
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@ -1355,6 +1355,25 @@ idle_timeout_cb (GDBusDaemon *daemon, gpointer user_data)
g_main_loop_quit (loop);
}
/* Satisfies STARTF_FORCEONFEEDBACK */
static void
turn_off_the_starting_cursor (void)
{
MSG msg;
BOOL bRet;
PostQuitMessage (0);
while ((bRet = GetMessage (&msg, 0, 0, 0)) != 0)
{
if (bRet == -1)
continue;
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
__declspec(dllexport) void CALLBACK g_win32_run_session_bus (HWND hwnd, HINSTANCE hinst, char *cmdline, int nCmdShow);
__declspec(dllexport) void CALLBACK
@ -1365,6 +1384,8 @@ g_win32_run_session_bus (HWND hwnd, HINSTANCE hinst, char *cmdline, int nCmdShow
const char *address;
GError *error = NULL;
turn_off_the_starting_cursor ();
if (g_getenv ("GDBUS_DAEMON_DEBUG") != NULL)
open_console_window ();