ab81a559f4
Adds hint "SDL_WINDOWS_DPI_SCALING" which can be set to "1" to change the SDL coordinate system units to be DPI-scaled points, rather than pixels everywhere. This means windows will be appropriately sized, even when created on high-DPI displays with scaling. e.g. requesting a 640x480 window from SDL, on a display with 125% scaling in Windows display settings, will create a window with an 800x600 client area (in pixels). Setting this to "1" implicitly requests process DPI awareness (setting SDL_WINDOWS_DPI_AWARENESS is unnecessary), and forces SDL_WINDOW_ALLOW_HIGHDPI on all windows.
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifndef SDL_windowsmodes_h_
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#define SDL_windowsmodes_h_
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typedef struct
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{
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WCHAR DeviceName[32];
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HMONITOR MonitorHandle;
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SDL_bool IsValid;
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} SDL_DisplayData;
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typedef struct
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{
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DEVMODE DeviceMode;
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} SDL_DisplayModeData;
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extern int WIN_InitModes(_THIS);
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extern int WIN_GetDisplayBounds(_THIS, SDL_VideoDisplay * display, SDL_Rect * rect);
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extern int WIN_GetDisplayUsableBounds(_THIS, SDL_VideoDisplay * display, SDL_Rect * rect);
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extern void WIN_ScreenPointFromSDL(int *x, int *y, int *dpiOut);
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extern void WIN_ScreenPointToSDL(int *x, int *y);
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extern int WIN_GetDisplayDPI(_THIS, SDL_VideoDisplay * display, float * ddpi, float * hdpi, float * vdpi);
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extern void WIN_GetDisplayModes(_THIS, SDL_VideoDisplay * display);
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extern int WIN_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
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extern void WIN_RefreshDisplays(_THIS);
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extern void WIN_QuitModes(_THIS);
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#endif /* SDL_windowsmodes_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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