如何以编程方式确定是否安装了Visual C++ Runtime ？

#include<Windows.h>

bool isVisualCRuntimeInstalled() {
    HMODULE msvcp140 = GetModuleHandle("msvcp140.dll");
    HMODULE vcruntime140 = GetModuleHandle("vcruntime140.dll");
    return (msvcp140 != NULL) && (vcruntime140 != NULL);
}

#include<Windows.h>
#include<vector>
#include<string>

bool isVisualCRuntimeInstalled() {
    HKEY hKey;
    LONG lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\VisualStudio", 0, KEY_READ, &hKey);
    if (lResult == ERROR_SUCCESS) {
        char subKeyName[256];
        DWORD subKeyNameSize;
        FILETIME lastWriteTime;
        DWORD numSubKeys = 0;
        lResult = RegQueryInfoKey(hKey, NULL, NULL, NULL, &numSubKeys, NULL, NULL, NULL, NULL, NULL, NULL, &lastWriteTime);
        if (lResult == ERROR_SUCCESS) {
            for (DWORD i = 0; i < numSubKeys; i++) {
                subKeyNameSize = 256;
                lResult = RegEnumKeyEx(hKey, i, subKeyName, &subKeyNameSize, NULL, NULL, NULL, &lastWriteTime);
                if (lResult == ERROR_SUCCESS) {
                    std::string subKeyStr(subKeyName);
                    if (subKeyStr.find("14.") != std::string::npos) {
                        return true;
                    }
                }
            }
        }
    }
    return false;
}