src/core/windows/SDL_windows.c
author Sam Lantinga
Sat, 06 Oct 2012 12:16:32 -0700
changeset 6566 dd7e57847ea9
parent 6138 4c64952a58fb
child 6885 700f1b25f77f
child 8382 5433c96fd195
permissions -rw-r--r--
Add flags to the vidmode debug output
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "SDL_config.h"
    22 
    23 #ifdef __WIN32__
    24 
    25 #include "SDL_error.h"
    26 #include "SDL_windows.h"
    27 
    28 #include <objbase.h>  /* for CoInitialize/CoUninitialize */
    29 
    30 
    31 /* Sets an error message based on GetLastError() */
    32 void
    33 WIN_SetError(const char *prefix)
    34 {
    35     TCHAR buffer[1024];
    36     char *message;
    37     FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
    38                   buffer, SDL_arraysize(buffer), NULL);
    39     message = WIN_StringToUTF8(buffer);
    40     SDL_SetError("%s%s%s", prefix ? prefix : "", prefix ? ": " : "", message);
    41     SDL_free(message);
    42 }
    43 
    44 HRESULT
    45 WIN_CoInitialize(void)
    46 {
    47     const HRESULT hr = CoInitialize(NULL);
    48 
    49     /* S_FALSE means success, but someone else already initialized. */
    50     /* You still need to call CoUninitialize in this case! */
    51     if (hr == S_FALSE) {
    52         return S_OK;
    53     }
    54 
    55     return hr;
    56 }
    57 
    58 void
    59 WIN_CoUninitialize(void)
    60 {
    61     CoUninitialize();
    62 }
    63 
    64 #endif /* __WIN32__ */
    65 
    66 /* vi: set ts=4 sw=4 expandtab: */