/// <summary>
/// Enumerates all MSI installed products
/// </summary>
/// <returns>
/// An enumeration containing InstalledProducts
/// </returns>
public static IEnumerable <InstalledProduct> EnumerateInstalledProducts()
{
foreach (var guid in MSI.EnumerateGUIDs())
{
yield return(new InstalledProduct(guid));
}
}
private string TryGetProperty(string propertyName)
{
string propertyValue;
if (MSI.TryGetProperty(_guid, propertyName, out propertyValue) != MsiExitCodes.Success)
{
propertyValue = null;
}
return(propertyValue);
}
/// <summary>
/// Get property of a product indicated by GUID. Throws exception if cannot read the property.
/// </summary>
/// <param name="productGUID">Product GUID</param>
/// <param name="PropertyName">Property name</param>
/// <returns>Property value, if available.</returns>
/// <exception cref="MSIException">Throws MSIException if reading property was not successful</exception>
public static String getProperty(string productGUID, string PropertyName)
{
int len = 0;
// Get the data len
MSI.MsiGetProductInfo(productGUID, PropertyName, null, ref len);
// increase for the terminating \0
len++;
String r = new string(new char[len]);
int returnValue = MSI.MsiGetProductInfo(productGUID, PropertyName, r, ref len);
if (returnValue != 0)
{
throw new MSIException(returnValue);
}
return(r);
}
/// <summary>
/// Enumerate all installed product GUIDs
/// </summary>
/// <returns>A List of strings containing all GUIDs</returns>
public static List <string> EnumerateGUIDs()
{
var guidList = new List <string>();
uint ret = 0, i = 0, dummy2 = 0;
do
{
string GUID = new string(new char[39]);
object dummy1;
ret = MSI.MsiEnumProductsEx(null, null, (uint)InstallContext.All, i, GUID, out dummy1, null, ref dummy2);
if (ret == 0)
{
guidList.Add(GUID);
}
i++;
} while (ret != (uint)MsiExitCodes.NoMoreItems);
return(guidList);
}
