[PATCH 8/8] server: Implement RegisterRawInputDevices RIDEV_INPUTSINK flag.

[Rémi Bernon]

This flag allows applications to receive rawinput messages while in
background. They have to specify a target hwnd, which will receive them,
and the messages will carry a RIM_INPUTSINK wparam if the window wasn't
foreground.

Signed-off-by: Rémi Bernon 
---
 dlls/user32/rawinput.c    |  9 ++++++++-
 dlls/user32/tests/input.c |  4 +---
 server/queue.c            | 13 +++++++++----
 3 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/dlls/user32/rawinput.c b/dlls/user32/rawinput.c
index 7a9eb6ced17..103835e0e33 100644
--- a/dlls/user32/rawinput.c
+++ b/dlls/user32/rawinput.c
@@ -291,6 +291,13 @@ BOOL WINAPI DECLSPEC_HOTPATCH RegisterRawInputDevices(RAWINPUTDEVICE *devices, U

for (i = 0; i < device_count; ++i)
     {
+        if ((devices[i].dwFlags & RIDEV_INPUTSINK) &&
+            (devices[i].hwndTarget == NULL))
+        {
+            SetLastError(ERROR_INVALID_PARAMETER);
+            return FALSE;
+        }
+
         if ((devices[i].dwFlags & RIDEV_REMOVE) &&
             (devices[i].hwndTarget != NULL))
         {
@@ -306,7 +313,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH RegisterRawInputDevices(RAWINPUTDEVICE *devices, U
         TRACE("device %u: page %#x, usage %#x, flags %#x, target %p.\n",
                 i, devices[i].usUsagePage, devices[i].usUsage,
                 devices[i].dwFlags, devices[i].hwndTarget);
-        if (devices[i].dwFlags & ~(RIDEV_REMOVE|RIDEV_NOLEGACY))
+        if (devices[i].dwFlags & ~(RIDEV_REMOVE|RIDEV_NOLEGACY|RIDEV_INPUTSINK))
             FIXME("Unhandled flags %#x for device %u.\n", devices[i].dwFlags, i);

d[i].usage_page = devices[i].usUsagePage;
diff --git a/dlls/user32/tests/input.c b/dlls/user32/tests/input.c
index f04c658da62..6539eb91b37 100644
--- a/dlls/user32/tests/input.c
+++ b/dlls/user32/tests/input.c
@@ -1804,9 +1804,7 @@ static void test_RegisterRawInputDevices(void)

SetLastError(0xdeadbeef);
     res = RegisterRawInputDevices(raw_devices, ARRAY_SIZE(raw_devices), sizeof(RAWINPUTDEVICE));
-    todo_wine
     ok(res == FALSE, "RegisterRawInputDevices failed\n");
-    todo_wine
     ok(GetLastError() == ERROR_INVALID_PARAMETER, "RegisterRawInputDevices returned %08x\n", GetLastError());

raw_devices[0].hwndTarget = hwnd;
@@ -1884,7 +1882,7 @@ struct rawinput_test rawinput_tests[] =

/* cross-process foreground tests */
     { TRUE,  TRUE,  0,               FALSE, FALSE, FALSE, /* todos: */ FALSE, FALSE, FALSE },
-    { TRUE,  TRUE,  RIDEV_INPUTSINK, FALSE,  TRUE, FALSE, /* todos: */ FALSE,  TRUE, FALSE },
+    { TRUE,  TRUE,  RIDEV_INPUTSINK, FALSE,  TRUE, FALSE, /* todos: */ FALSE, FALSE, FALSE },
     { TRUE,  TRUE,  0,               FALSE, FALSE, FALSE, /* todos: */ FALSE, FALSE, FALSE },
 };

diff --git a/server/queue.c b/server/queue.c
index 14cffbd6a76..517d42d34dd 100644
--- a/server/queue.c
+++ b/server/queue.c
@@ -1648,6 +1648,7 @@ static int queue_rawinput_message( struct process* process, void* user )
     struct desktop *desktop = NULL;
     struct thread *thread = NULL, *foreground = NULL;
     struct message *msg;
+    int wparam = RIM_INPUT;

if (raw_msg->data.rawinput.type == RIM_TYPEMOUSE)
         device = process->rawinput_mouse;
@@ -1671,17 +1672,21 @@ static int queue_rawinput_message( struct process* process, void* user )
         process != thread->process)
         goto done;

-    /* FIXME: Implement RIDEV_INPUTSINK */
-    if (!desktop->foreground_input || !(foreground = get_window_thread( desktop->foreground_input->active )) ||
+    /* skip if target window is not in foreground process and RIDEV_INPUTSINK was not used */
+    if (!desktop->foreground_input ||
+        !(foreground = get_window_thread( desktop->foreground_input->active )) ||
         thread->process != foreground->process)
-        goto done;
+    {
+        if (!(device->flags & RIDEV_INPUTSINK)) goto done;
+        wparam = RIM_INPUTSINK;
+    }

if (!(msg = alloc_hardware_message( raw_msg->data.info, raw_msg->source, raw_msg->time )))
         goto done;

msg->win    = device->target;
     msg->msg    = WM_INPUT;
-    msg->wparam = RIM_INPUT;
+    msg->wparam = wparam;
     msg->lparam = 0;
     memcpy( msg->data, &raw_msg->data, sizeof(raw_msg->data) );