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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_GFX_DPI_WIN_H_ | 5 #ifndef UI_GFX_DPI_WIN_H_ |
| 6 #define UI_GFX_DPI_WIN_H_ | 6 #define UI_GFX_DPI_WIN_H_ |
| 7 | 7 |
| 8 #include "ui/gfx/gfx_export.h" | 8 #include "ui/gfx/gfx_export.h" |
| 9 #include "ui/gfx/point.h" | 9 #include "ui/gfx/point.h" |
| 10 #include "ui/gfx/rect.h" | 10 #include "ui/gfx/rect.h" |
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| 54 | 54 |
| 55 // Win7 and Win8 send touch events scaled according to the current DPI | 55 // Win7 and Win8 send touch events scaled according to the current DPI |
| 56 // scaling. Win8.1 corrects this, and sends touch events in DPI units. | 56 // scaling. Win8.1 corrects this, and sends touch events in DPI units. |
| 57 // This function returns the appropriate scaling factor for touch events. | 57 // This function returns the appropriate scaling factor for touch events. |
| 58 UI_EXPORT double GetUndocumentedDPITouchScale(); | 58 UI_EXPORT double GetUndocumentedDPITouchScale(); |
| 59 | 59 |
| 60 } // namespace win | 60 } // namespace win |
| 61 } // namespace gfx | 61 } // namespace gfx |
| 62 | 62 |
| 63 #endif // UI_GFX_DPI_WIN_H_ | 63 #endif // UI_GFX_DPI_WIN_H_ |
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