windowscodecs: Always report pixel formats are signed.

dlls/windowscodecs/info.c

@@ -1122,8 +1122,15 @@ static HRESULT WINAPI PixelFormatInfo_GetCLSID(IWICPixelFormatInfo2 *iface, CLSI
 
 static HRESULT WINAPI PixelFormatInfo_GetSigningStatus(IWICPixelFormatInfo2 *iface, DWORD *pStatus)
 {
-    FIXME("(%p,%p): stub\n", iface, pStatus);
-    return E_NOTIMPL;
+    TRACE("(%p,%p)\n", iface, pStatus);
+
+    if (!pStatus)
+        return E_INVALIDARG;
+
+    /* Pixel formats don't require code, so they are considered signed. */
+    *pStatus = WICComponentSigned;
+
+    return S_OK;
 }
 
 static HRESULT WINAPI PixelFormatInfo_GetAuthor(IWICPixelFormatInfo2 *iface, UINT cchAuthor,

dlls/windowscodecs/tests/info.c

@@ -194,8 +194,6 @@ static void test_pixelformat_info(void)
     ok(hr == S_OK, "GetFriendlyName failed, hr=%x\n", hr);
     ok(len < 255 && len > 0, "invalid length 0x%x\n", len);
 
-    todo_wine
-    {
     hr = IWICComponentInfo_GetSigningStatus(info, NULL);
     ok(hr == E_INVALIDARG, "GetSigningStatus failed, hr=%x\n", hr);
 
@@ -203,6 +201,8 @@ static void test_pixelformat_info(void)
     ok(hr == S_OK, "GetSigningStatus failed, hr=%x\n", hr);
     ok(signing == WICComponentSigned, "unexpected signing status 0x%x\n", signing);
 
+    todo_wine
+    {
     len = 0xdeadbeef;
     hr = IWICComponentInfo_GetSpecVersion(info, 0, NULL, &len);
     ok(hr == S_OK, "GetSpecVersion failed, hr=%x\n", hr);