Graham, Maybe it would help if you pointed us to the actual DLL you're trying to implement? That way we could see what functions and parameters are in the DLL...
Ken Ray Sons of Thunder Software, Inc. On May 11, 2011, at 12:07 PM, Graham Samuel <livf...@mac.com> wrote: > I am still struggling with the most basic concepts of externals for LC > Windows apps, with the intention of using a third-party DLL to enhance the > functionality of my current project. I have had some help from Ken Ray and > others but I remain deeply clueless. Currently I'm looking at a DLL which has > a number of functions relating to bitmaps. I want to be able to drive the DLL > presumably by function calls, passing it parameters and receiving results. > Relating to bitmap manipulation, the DLL seems to be offering me a 'handle' > so that I can pick up a bitmap presumably from RAM. I realise this is a very > elementary question, but can anyone tell me what a handle is (some sort of > pointer probably, but what sort?) and what use it might be within a LiveCode > app, given that I can eventually find out how to generate the right glue code > to access it - Ken's note had helped me but he only deals with passing > strings, and thus doesn't cover the idea of binary info, and I am not clear > how to proceed. > > I am very willing to read tutorial material on this but there doesn't seem to > be much of it about. I am dimly beginning to see that there is more > commonality than I guessed in the different OSs and IDEs when it comes to > things like identifying and parameterising windows and other objects, the use > of name spaces, and naming and calling functions and their parameters, but I > still don't know enough to continue. > > TIA > > Graham > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
