66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
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//+--------------------------------------------------------------------------
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// Abstract:
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// Public API definitions for DWrite and D2D
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//
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//----------------------------------------------------------------------------
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#ifndef DCOMMON_H_INCLUDED
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#define DCOMMON_H_INCLUDED
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//
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//These macros are defined in the Windows 7 SDK, however to enable development using the technical preview,
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//they are included here temporarily.
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//
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#ifndef DEFINE_ENUM_FLAG_OPERATORS
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#define DEFINE_ENUM_FLAG_OPERATORS(ENUMTYPE) \
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extern "C++" { \
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inline ENUMTYPE operator | (ENUMTYPE a, ENUMTYPE b) { return ENUMTYPE(((int)a) | ((int)b)); } \
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inline ENUMTYPE &operator |= (ENUMTYPE &a, ENUMTYPE b) { return (ENUMTYPE &)(((int &)a) |= ((int)b)); } \
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inline ENUMTYPE operator & (ENUMTYPE a, ENUMTYPE b) { return ENUMTYPE(((int)a) & ((int)b)); } \
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inline ENUMTYPE &operator &= (ENUMTYPE &a, ENUMTYPE b) { return (ENUMTYPE &)(((int &)a) &= ((int)b)); } \
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inline ENUMTYPE operator ~ (ENUMTYPE a) { return ENUMTYPE(~((int)a)); } \
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inline ENUMTYPE operator ^ (ENUMTYPE a, ENUMTYPE b) { return ENUMTYPE(((int)a) ^ ((int)b)); } \
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inline ENUMTYPE &operator ^= (ENUMTYPE &a, ENUMTYPE b) { return (ENUMTYPE &)(((int &)a) ^= ((int)b)); } \
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}
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#endif
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#ifndef __field_ecount_opt
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#define __field_ecount_opt(x)
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#endif
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#ifndef __range
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#define __range(x,y)
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#endif
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#ifndef __field_ecount
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#define __field_ecount(x)
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#endif
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/// <summary>
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/// The measuring method used for text layout.
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/// </summary>
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typedef enum DWRITE_MEASURING_MODE
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{
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/// <summary>
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/// Text is measured using glyph ideal metrics whose values are independent to the current display resolution.
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/// </summary>
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DWRITE_MEASURING_MODE_NATURAL,
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/// <summary>
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/// Text is measured using glyph display compatible metrics whose values tuned for the current display resolution.
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/// </summary>
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DWRITE_MEASURING_MODE_GDI_CLASSIC,
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/// <summary>
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/// Text is measured using the same glyph display metrics as text measured by GDI using a font
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/// created with CLEARTYPE_NATURAL_QUALITY.
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/// </summary>
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DWRITE_MEASURING_MODE_GDI_NATURAL
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} DWRITE_MEASURING_MODE;
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#endif /* DCOMMON_H_INCLUDED */
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