/// <summary>
/// [MSI 4.0] Gets the list of files that can be updated by one or more patches.
/// </summary>
/// <param name="productCode">ProductCode (GUID) of the product which is
/// the target of the patches</param>
/// <param name="patches">list of file paths of one or more patches to be
/// analyzed</param>
/// <returns>List of absolute paths of files that can be updated when the
/// patches are applied on this system.</returns>
/// <remarks><p>
/// Win32 MSI API:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msigetpatchfilelist.asp">MsiGetPatchFileList</a>
/// </p></remarks>
public static IList <string> GetPatchFileList(string productCode, IList <string> patches)
{
if (String.IsNullOrEmpty(productCode))
{
throw new ArgumentNullException("productCode");
}
if (patches == null || patches.Count == 0)
{
throw new ArgumentNullException("patches");
}
StringBuilder patchList = new StringBuilder();
foreach (string patch in patches)
{
if (patch != null)
{
if (patchList.Length != 0)
{
patchList.Append(';');
}
patchList.Append(patch);
}
}
if (patchList.Length == 0)
{
throw new ArgumentNullException("patches");
}
IntPtr phFileRecords;
uint cFiles;
uint ret = NativeMethods.MsiGetPatchFileList(
productCode,
patchList.ToString(),
out cFiles,
out phFileRecords);
if (ret != 0)
{
throw InstallerException.ExceptionFromReturnCode(ret);
}
List <string> files = new List <string>();
for (uint i = 0; i < cFiles; i++)
{
int hFileRec = Marshal.ReadInt32(phFileRecords, (int)i);
using (Record fileRec = new Record(hFileRec, true, null))
{
files.Add(fileRec.GetString(1));
}
}
return(files);
}
