Method GetVSInstanceInfo

Source/cmVSSetupHelper.cxx:179–253

Gather additional info such as if VCToolset, WinSDKs are installed, location of VS and version information.

// Gather additional info such as if VCToolset, WinSDKs are installed, location
// of VS and version information.
bool cmVSSetupAPIHelper::GetVSInstanceInfo(
  SmartCOMPtr<ISetupInstance2> pInstance, VSInstanceInfo& vsInstanceInfo)
{
  if (!pInstance) {
    return false;
  }

  InstanceState state;
  if (FAILED(pInstance->GetState(&state))) {
    return false;
  }

  SmartBSTR bstrVersion;
  if (FAILED(pInstance->GetInstallationVersion(&bstrVersion))) {
    return false;
  }
  vsInstanceInfo.Version =
    cmsys::Encoding::ToNarrow(std::wstring(bstrVersion));

  // Reboot may have been required before the installation path was created.
  SmartBSTR bstrInstallationPath;
  if ((eLocal & state) == eLocal) {
    if (FAILED(pInstance->GetInstallationPath(&bstrInstallationPath))) {
      return false;
    }
    vsInstanceInfo.VSInstallLocation =
      cmsys::Encoding::ToNarrow(std::wstring(bstrInstallationPath));
    cmSystemTools::ConvertToUnixSlashes(vsInstanceInfo.VSInstallLocation);
  }

  // Check if a compiler is installed with this instance.
  if (!LoadVSInstanceVCToolsetVersion(vsInstanceInfo)) {
    return false;
  }

  // Reboot may have been required before the product package was registered
  // (last).
  if ((eRegistered & state) == eRegistered) {
    SmartCOMPtr<ISetupPackageReference> product;
    if (FAILED(pInstance->GetProduct(&product)) || !product) {
      return false;
    }

    LPSAFEARRAY lpsaPackages;
    if (FAILED(pInstance->GetPackages(&lpsaPackages)) || !lpsaPackages) {
      return false;
    }

    int lower = lpsaPackages->rgsabound[0].lLbound;
    int upper = lpsaPackages->rgsabound[0].cElements + lower;

    IUnknown** ppData = (IUnknown**)lpsaPackages->pvData;
    for (int i = lower; i < upper; i++) {
      SmartCOMPtr<ISetupPackageReference> package = nullptr;
      if (FAILED(ppData[i]->QueryInterface(IID_ISetupPackageReference,
                                           (void**)&package)) ||
          !package) {
        continue;