mirror of
https://github.com/libretro/RetroArch.git
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61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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* Copyright (C) 2016-2017 - Brad Parker
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <windows.h>
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#include "../video_display_server.h"
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#include "../common/win32_common.h"
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typedef struct
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{
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unsigned opacity;
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} dispserv_win32_t;
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static void* win32_display_server_init(void)
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{
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dispserv_win32_t *dispserv = (dispserv_win32_t*)calloc(1, sizeof(*dispserv));
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return dispserv;
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}
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static void win32_display_server_destroy(void)
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{
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}
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static bool win32_set_window_opacity(void *data, unsigned opacity)
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{
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HWND hwnd = win32_get_window();
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dispserv_win32_t *serv = (dispserv_win32_t*)data;
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serv->opacity = opacity;
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#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0500
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/* Set window transparency on Windows 2000 and above */
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return SetLayeredWindowAttributes(hwnd, 0, opacity, LWA_ALPHA);
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#else
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return false;
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#endif
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}
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const video_display_server_t dispserv_win32 = {
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win32_display_server_init,
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win32_display_server_destroy,
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win32_set_window_opacity,
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"win32"
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};
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