I'd be very surprised if that were the case. With each release of the Windows OS and Windows Installer, new error codes are added. At some future date, the API functions could return an error code that is not within your enum's legal set of values. Stick with an int.
-----Original Message----- From: Anil Patel [mailto:apatel...@googlemail.com] Sent: 25 August 2011 16:43 To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Identifying Features that have been installed The numeric codes for the symbolics can be looked up here but I'm sure there is a way to get the Enums for them. http://msdn.microsoft.com/en-us/library/18d8fbe8-a967-4f1c-ae50-99ca8e491d2d( PROT.10).aspx On Thu, Aug 25, 2011 at 4:26 PM, Anil Patel <apatel...@googlemail.com>wrote: > Hi Peter & James, > > I really appreciate your help on this - thank you!! > > I went with the interop route and attach a sample app (if anyone is > interested) in what I have done. > > Best Regards, > Anil. > > using System; > using System.Collections.Generic; > using System.Linq; > using System.Text; > using System.Runtime.InteropServices; > namespace ConsoleApplication2 > { > class Program > > { > [DllImport("msi", CharSet = CharSet.Auto)] > static extern int MsiGetProductCode(string component, StringBuilder > buffer); > > [DllImport("msi", CharSet = CharSet.Auto)] > static extern int MsiEnumFeatures(string product, uint > featureIndex, StringBuilder featureBuffer, StringBuilder parentBuffer); > > [DllImport("msi", CharSet = CharSet.Auto)] > static extern int MsiQueryFeatureState(string product, string > featureBuffer); > > public static string GetProductCode(string component) > { > StringBuilder productCodeStringBuilder = new > StringBuilder(512); > int nRes = MsiGetProductCode(component, > productCodeStringBuilder); > return productCodeStringBuilder.ToString(); > > //switch (MsiGetProductCode(component, > productCodeStringBuilder)) > > //{ > // case ERROR_SUCCESS: > // return productCodeStringBuilder.ToString(); > // // *Please* don't actually just throw an exception like > this. > // // Throw the relevent exception based on the error code > returned. > // case ERROR_BAD_CONFIGURATION: > // throw new Exception("The configuration data is > corrupt."); > // case ERROR_INSTALL_FAILURE: > // throw new Exception("The product code could not be > determined."); > // case ERROR_INVALID_PARAMETER: > // throw new Exception("An invalid parameter was passed > to the function."); > // case ERROR_UNKNOWN_COMPONENT: > // throw new Exception("The specified component is > unknown."); > // default: > // throw new Exception(); > //} > } > public static void EnumFeatures(string product) > { > StringBuilder featureBuf = new StringBuilder(256); > StringBuilder parentBuf = new StringBuilder(256); > > for (uint i=0; ; i++) > { > int nRes = MsiEnumFeatures(product, i, featureBuf, > parentBuf); > if (nRes != 0) > break; > > int featureQCode = QueryFeatureState(product, > featureBuf.ToString()); > > Console.WriteLine(String.Format("Feature {0} ", > featureBuf.ToString())); > } > return; > } > > public static int QueryFeatureState(string product, string feature) > { > return MsiQueryFeatureState(product, feature); > } > > static void Main(string[] args) > { > //pass in guid of product > string s = > GetProductCode("{14CCA315-92CE-48E7-8C7C-87923F770B47}"); > EnumFeatures(s); > } > } > } > > //useful links > http://source.winehq.org/source/include/msi.h > http://msdn.microsoft.com/en-us/library/aa369426(v=VS.85).aspx > > > > > > On Thu, Aug 25, 2011 at 3:33 PM, James Johnston <johnst...@inn-soft.com>wrote: > >> You could always use the COM library if you're not comfortable with the C >> API calls. Add a COM reference to "Microsoft Windows Installer Object >> Library" to your project... >> >> Installer.get_Features and Installer.get_FeatureState look like they might >> be useful. >> >> -----Original Message----- >> From: Anil Patel [mailto:apatel...@googlemail.com] >> Sent: Thursday, August 25, 2011 11:12 >> To: General discussion for Windows Installer XML toolset. >> Subject: Re: [WiX-users] Identifying Features that have been installed >> >> Hi Peter, >> >> Really appreciate your feedback on this. >> >> The MsiGetEnumsFeatues() is defined as >> >> UINT MsiEnumFeatures( >> __in LPCTSTR szProduct, >> __in DWORD iFeatureIndex, >> __out LPTSTR lpFeatureBuf, >> __out LPTSTR lpParentBuf >> ); >> >> So to get the product code, I found this code >> >> [DllImport("msi", CharSet = CharSet.Auto)] >> static extern int MsiGetProductCode(string component, StringBuilder >> buffer); >> >> public static string GetProductCode(string component) >> { >> StringBuilder productCodeStringBuilder = new >> StringBuilder(512); >> switch (MsiGetProductCode(component, productCodeStringBuilder)) >> { >> case ERROR_SUCCESS: >> return productCodeStringBuilder.ToString(); >> // *Please* don't actually just throw an exception like >> this. >> // Throw the relevent exception based on the error code >> returned. >> case ERROR_BAD_CONFIGURATION: >> throw new Exception("The configuration data is >> corrupt."); >> case ERROR_INSTALL_FAILURE: >> throw new Exception("The product code could not be >> determined."); >> case ERROR_INVALID_PARAMETER: >> throw new Exception("An invalid parameter was passed to >> the function."); >> case ERROR_UNKNOWN_COMPONENT: >> throw new Exception("The specified component is >> unknown."); >> default: >> throw new Exception(); >> } >> } >> >> The problem is thay symbolic constants in the switch statement (eg >> ERROR_INVALID_PARAMETER which are uints) aren't recognised so error on >> compile. >> >> Do you know how I can resolve these. I'm assuming there might be an Enum >> for >> them but I can't locate them. >> >> Again any help would be appreciated. >> >> Regards, >> Anil. >> >> >> On Thu, Aug 25, 2011 at 11:13 AM, Peter Shirtcliffe >> <pshirtcli...@sdl.com>wrote: >> >> > MsiEnumFeatures() >> > http://msdn.microsoft.com/en-us/library/aa370098%28v=vs.85%29.aspx >> > >> > >> > -----Original Message----- >> > From: Anil Patel [mailto:apatel...@googlemail.com] >> > Sent: 25 August 2011 11:08 >> > To: General discussion for Windows Installer XML toolset. >> > Subject: [WiX-users] Identifying Features that have been installed >> > >> > Hello, >> > >> > I have a configuration program that is run manually by a user >> > (following a new install or a change to an existing installation) >> > which allows the user to configure the installed features. >> > >> > There is a requirement to disable the configuration of features not >> > installed by the user. >> > >> > The question is, is there a way for the configuration program to >> > identify which featues have been installed? >> > >> > I could record this data into the registry during the install and >> > remove it when a feature is uninstalled but I just wondered if there >> > was any other way of doing this. >> > >> > Thank you for your time. >> > >> > >> > Regards, >> > Anil. >> > >> > ---------------------------------------------------------------------- >> > ------- >> > - >> > EMC VNX: the world's simplest storage, starting under $10K The only >> > unified storage solution that offers unified management Up to 160% >> > more powerful than alternatives and 25% more efficient. >> > Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev >> > _______________________________________________ >> > WiX-users mailing list >> > WiX-users@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/wix-users >> > SDL PLC confidential, all rights reserved. >> > If you are not the intended recipient of this mail SDL requests and >> > requires that you delete it without acting upon or copying any of its >> > contents, and we further request that you advise us. >> > SDL PLC is a public limited company registered in England and Wales. >> > Registered number: 02675207. >> > Registered address: Globe House, Clivemont Road, Maidenhead, Berkshire >> > SL6 7DY, UK. >> > >> > >> > >> > ---------------------------------------------------------------------- >> > -------- EMC VNX: the world's simplest storage, starting under $10K >> > The only unified storage solution that offers unified management Up to >> > 160% more powerful than alternatives and 25% more efficient. >> > Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev >> > _______________________________________________ >> > WiX-users mailing list >> > WiX-users@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/wix-users >> > >> >> ---------------------------------------------------------------------------- >> -- >> EMC VNX: the world's simplest storage, starting under $10K The only >> unified >> storage solution that offers unified management Up to 160% more powerful >> than alternatives and 25% more efficient. >> Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev >> _______________________________________________ >> WiX-users mailing list >> WiX-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/wix-users >> >> >> >> ----------------------------------------------------------------------------- - >> EMC VNX: the world's simplest storage, starting under $10K >> The only unified storage solution that offers unified management >> Up to 160% more powerful than alternatives and 25% more efficient. >> Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev >> _______________________________________________ >> WiX-users mailing list >> WiX-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/wix-users >> > > ----------------------------------------------------------------------------- - EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ EMC VNX: the world's simplest storage, starting under $10K The only unified storage solution that offers unified management Up to 160% more powerful than alternatives and 25% more efficient. Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
