dwrite: Font search is case insensitive.

dlls/dwrite/font.c

@@ -1431,7 +1431,7 @@ static UINT32 collection_find_family(struct dwrite_fontcollection *collection, c
         for (j = 0; j < IDWriteLocalizedStrings_GetCount(family_name); j++) {
             WCHAR buffer[255];
             hr = IDWriteLocalizedStrings_GetString(family_name, j, buffer, 255);
-            if (SUCCEEDED(hr) && !strcmpW(buffer, name))
+            if (SUCCEEDED(hr) && !strcmpiW(buffer, name))
                 return i;
         }
     }

dlls/dwrite/tests/font.c

@@ -58,6 +58,8 @@ static inline BOOL heap_free(void *mem)
 
 static const WCHAR test_fontfile[] = {'w','i','n','e','_','t','e','s','t','_','f','o','n','t','.','t','t','f',0};
 static const WCHAR tahomaW[] = {'T','a','h','o','m','a',0};
+static const WCHAR tahomaUppercaseW[] = {'T','A','H','O','M','A',0};
+static const WCHAR tahomaStrangecaseW[] = {'t','A','h','O','m','A',0};
 static const WCHAR blahW[]  = {'B','l','a','h','!',0};
 
 static IDWriteFactory *create_factory(void)
@@ -1376,6 +1378,20 @@ static void test_system_fontcollection(void)
     ok(ret, "got %d\n", ret);
     ok(i != (UINT32)-1, "got %u\n", i);
 
+    ret = FALSE;
+    i = (UINT32)-1;
+    hr = IDWriteFontCollection_FindFamilyName(collection, tahomaUppercaseW, &i, &ret);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(ret, "got %d\n", ret);
+    ok(i != (UINT32)-1, "got %u\n", i);
+
+    ret = FALSE;
+    i = (UINT32)-1;
+    hr = IDWriteFontCollection_FindFamilyName(collection, tahomaStrangecaseW, &i, &ret);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(ret, "got %d\n", ret);
+    ok(i != (UINT32)-1, "got %u\n", i);
+
     /* get back local file loader */
     hr = IDWriteFontCollection_GetFontFamily(collection, i, &family);
     ok(hr == S_OK, "got 0x%08x\n", hr);