Over and over, people ask the case .. of statement to be expanded to allow strings, i.e. Looks nice, doesn’t it? Sure, but the devil is in the details. Strings are complex data types, and comparing strings is not a straightforward tasks. If you use just a single, simple encoding, and a simple language like […]
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Mom, a modal loop ate my service messages!
A colleague of mine was using the “modernized” service implementation I wrote about some time ago. His services needs to be notified when a user logs on/off or locks/unlocks the machine. Everything was fine for a while, until he started to complain it worked for a while, but then, “randomly”, notifications weren’t triggered any longer. Debugging, he […]
No, the title of this blog post is not a mistake. Delphi, including XE7, only implements services using NT APIs obsoleted since Windows 2000. Windows NT was EOLed in 2004, 2000 in 2010, and XP last year, yet Delphi still doesn’t take advantage of the new APIs. What are the advantages? Well, using the “extended” […]
Since the introduction of Windows Vista and the new security model for applications, application running under User Account Control (UAC) should adopt a “least privilege” model, running as an “unprivileged” user almost all the time, and requesting higher privileges only when needed, even if the user has those privileges. Requesting higher privileges is called “elevation”. […]
To this StackOverflow question, I simply answered to forget D2010 Datasnap because IMHO it is only half-backed and lacks several needed features and is not flexible. Two people commented my answer was not helpful, and wrote Datasnap is absolutely flexible (later one comment was withdrawn). I am going to explain in details why the “new” Datasnap is not […]
In the past few days I had many troubles making our application work when the client was installed on a PC outside the application domain. It was due to several Delphi 2007 issues with DCOM. Usually, when a user was outside a domain we used TSocketConnection and the “Borland” Socket Server to establish the connection. “Outside” the domain usually […]