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xemu-os-utils-windows.c: Simplify get_windows_build_info

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This commit is contained in:
Matt Borgerson 2023-06-12 00:25:30 -07:00
parent f09af3a566
commit 098b661508
1 changed files with 18 additions and 44 deletions
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62
ui/xemu-os-utils-windows.c
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@ -25,51 +25,28 @@
static const char *get_windows_build_info(void)
{
const char *buffer = NULL;
HKEY keyhandle;
WCHAR current_version[1024], current_build[1024], product_name[1024];
WCHAR version_size = 1024, build_size = 1024, product_size = 1024;
// If one of the registry open fails, return Windows as a fallback.
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 0,
KEY_QUERY_VALUE, &keyhandle) != ERROR_SUCCESS)
return NULL;
WCHAR current_build[1024], product_name[1024];
WCHAR build_size = 1024, product_size = 1024;
if (RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"ProductName", RRF_RT_REG_SZ, (LPVOID)NULL, &product_name,
(LPDWORD)&product_size) != ERROR_SUCCESS)
return NULL;
if (RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"CurrentVersion", RRF_RT_REG_SZ, (LPVOID)NULL,
&current_version, (LPDWORD)&version_size) != ERROR_SUCCESS)
return NULL;
// If version number is 6.3/10.0 (8.1/10/11), get the build number from the
// DisplayVersion Registry. Reference:
// https://en.wikipedia.org/wiki/Windows_NT
if ((wcscmp(current_version, L"10.0") == 0) ||
(wcscmp(current_version, L"6.3") == 0)) {
if (RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"DisplayVersion", RRF_RT_REG_SZ, (LPVOID)NULL,
&current_build,
(LPDWORD)&build_size) != ERROR_SUCCESS) {
// If it's lower (Win 8 and below until Win XP) get the build descriptor
// from CSDVersion.
if (RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"CSDVersion", RRF_RT_REG_SZ, (LPVOID)NULL,
&current_build,
(LPDWORD)&build_size) != ERROR_SUCCESS)
return NULL;
}
(LPDWORD)&product_size) != ERROR_SUCCESS) {
return "Windows";
}
RegCloseKey(keyhandle);
return g_strdup_printf("%ls %ls", product_name, current_build);
if ((RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"DisplayVersion", RRF_RT_REG_SZ, (LPVOID)NULL,
&current_build, (LPDWORD)&build_size) == ERROR_SUCCESS) ||
(RegGetValueW(HKEY_LOCAL_MACHINE,
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
L"CSDVersion", RRF_RT_REG_SZ, (LPVOID)NULL,
&current_build, (LPDWORD)&build_size) == ERROR_SUCCESS)) {
g_strdup_printf("%ls %ls", product_name, current_build);
}
return g_strdup_printf("%ls", product_name);
}
const char *xemu_get_os_info(void)
@ -78,11 +55,8 @@ const char *xemu_get_os_info(void)
if (buffer == NULL) {
buffer = get_windows_build_info();
if (buffer == NULL) {
buffer = "Windows";
}
}
return buffer;
}