win32: use CreateFile2 when compiling for Win8+

The API is always available in Win8+ even in UWP builds, unlike CreateFileW.
The API is pretty much the same. CONOUT is also supported [1].

[1] https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfile2#consoles

caca/driver/win32.c

@@ -104,6 +104,9 @@ static int win32_init_graphics(caca_display_t *dp)
     CONSOLE_CURSOR_INFO cci_screen;
     SMALL_RECT rect;
     COORD size;
+#if _WIN32_WINNT >= 0x0602 /* _WIN32_WINNT_WIN8 */
+    CREATEFILE2_EXTENDED_PARAMETERS createExParams;
+#endif
 
     dp->drv.p = malloc(sizeof(struct driver_private));
 
@@ -111,9 +114,18 @@ static int win32_init_graphics(caca_display_t *dp)
     dp->drv.p->new_console = AllocConsole();
 
     dp->drv.p->hin = GetStdHandle(STD_INPUT_HANDLE);
+#if _WIN32_WINNT >= 0x0602 /* _WIN32_WINNT_WIN8 */
+    ZeroMemory(&createExParams, sizeof(createExParams));
+    createExParams.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS);
+    createExParams.dwFileAttributes = FILE_ATTRIBUTE_NORMAL;
+    dp->drv.p->hout = CreateFile2(L"CONOUT$", GENERIC_READ | GENERIC_WRITE,
+                                 FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                 OPEN_EXISTING, &createExParams);
+#else
     dp->drv.p->hout = CreateFile("CONOUT$", GENERIC_READ | GENERIC_WRITE,
                                  FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
                                  OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+#endif
     if(dp->drv.p->hout == INVALID_HANDLE_VALUE)
         return -1;