diff options
Diffstat (limited to 'src/utils/win/SkDWriteNTDDI_VERSION.h')
| -rw-r--r-- | src/utils/win/SkDWriteNTDDI_VERSION.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/utils/win/SkDWriteNTDDI_VERSION.h b/src/utils/win/SkDWriteNTDDI_VERSION.h new file mode 100644 index 0000000000..7196639b97 --- /dev/null +++ b/src/utils/win/SkDWriteNTDDI_VERSION.h @@ -0,0 +1,31 @@ +/* + * Copyright 2018 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkDWriteNTDDI_VERSION_DEFINED +#define SkDWriteNTDDI_VERSION_DEFINED + +// More strictly, this header should be the first thing in a translation unit, +// since it is effectively negating build flags. +#if defined(_WINDOWS_) || defined(DWRITE_3_H_INCLUDED) +#error Must include SkDWriteNTDDI_VERSION.h before any Windows or DWrite headers. +#endif + +// If the build defines NTDDI_VERSION, pretend it didn't. +// This also requires resetting _WIN32_WINNT and WINVER. +// dwrite_3.h guards enum, macro, and interface declarations behind NTDDI_VERSION, +// but it is not clear this is correct since these are all immutable. +#if defined(NTDDI_VERSION) +# undef NTDDI_VERSION +# if defined(_WIN32_WINNT) +# undef _WIN32_WINNT_WIN10 +# endif +# if defined(WINVER) +# undef WINVER +# endif +#endif + +#endif |