[PATCH 4/5] user32: Improve QueryDisplayConfig() stub.

[Brendan Shanks]

Signed-off-by: Brendan Shanks 
---
 dlls/user32/sysparams.c     | 12 +++++++++++-
 dlls/user32/tests/monitor.c |  3 ---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/dlls/user32/sysparams.c b/dlls/user32/sysparams.c
index a3071912f8..82d7877f3e 100644
--- a/dlls/user32/sysparams.c
+++ b/dlls/user32/sysparams.c
@@ -4503,7 +4503,17 @@ LONG WINAPI QueryDisplayConfig(UINT32 flags, UINT32 *numpathelements, DISPLAYCON
                                DISPLAYCONFIG_TOPOLOGY_ID *topologyid)
 {
     FIXME("(%08x %p %p %p %p %p)\n", flags, numpathelements, pathinfo, numinfoelements, modeinfo, topologyid);
-    return ERROR_CALL_NOT_IMPLEMENTED;
+
+    if (!numpathelements || !numinfoelements)
+        return ERROR_INVALID_PARAMETER;
+
+    if (!*numpathelements || !*numinfoelements)
+        return ERROR_INVALID_PARAMETER;
+
+    if (!flags)
+        return ERROR_INVALID_PARAMETER;
+
+    return ERROR_NOT_SUPPORTED;
 }

/***********************************************************************
diff --git a/dlls/user32/tests/monitor.c b/dlls/user32/tests/monitor.c
index a986879293..2dd642f58f 100644
--- a/dlls/user32/tests/monitor.c
+++ b/dlls/user32/tests/monitor.c
@@ -1154,8 +1154,6 @@ static void test_query_display_config(void)
     DISPLAYCONFIG_MODE_INFO mi[20];
     LONG ret;

-    todo_wine
-    {
     ret = pQueryDisplayConfig(QDC_ALL_PATHS, NULL, NULL, NULL, NULL, NULL);
     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);

@@ -1203,7 +1201,6 @@ static void test_query_display_config(void)
     ok(ret == ERROR_INSUFFICIENT_BUFFER || ret == ERROR_NOT_SUPPORTED, "got %d\n", ret);
     ok (paths == 1, "got %u\n", paths);
     ok (modes == 1, "got %u\n", modes);
-    }
 }

static void test_display_config_get_device_info(void)