[PATCH 1/1] windows.media.devices: Define GUID_STR_LEN without using a magic number.

[Alex Henrie]

From: Alex Henrie

---
 dlls/windows.media.devices/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/windows.media.devices/main.c b/dlls/windows.media.devices/main.c
index a52f696f1ad..d3afbb58c97 100644
--- a/dlls/windows.media.devices/main.c
+++ b/dlls/windows.media.devices/main.c
@@ -164,7 +164,7 @@ static HRESULT get_default_device_id(EDataFlow direction, AudioDeviceRole role,

static const WCHAR id_fmt_pre[] = L"\\?\SWD#MMDEVAPI#";
     static const WCHAR id_fmt_hash[] = L"#";
-    static const size_t GUID_STR_LEN = 38; /* == strlen("{00000000-0000-0000-0000-000000000000}") */
+    static const size_t GUID_STR_LEN = ARRAY_SIZE(L"{12345678-1234-1234-1234-123456789abc}") - 1;

*device_id_hstr = NULL;