Solved

Deleting

Posted on 2000-05-13
2
127 Views
Last Modified: 2010-04-04
How to make with Delphi that you could not delete a program(made in delphi)-when someone tries to delete program message"Can not delete!" must shows.
0
Comment
Question by:darko_poljak
2 Comments
 
LVL 15

Expert Comment

by:simonet
ID: 2807262
>"Can not delete!"

That message is given when trying to delete a file that has been locked by Windows. Files are locked when they are open (being used).

Unless your file is something like a service, that stays open all the time, you can write a seconf program that constantly watches your file for changes. The backbone of this monitor file would be an API call called FindFirstChangeNotification.

Another option, simplier, is to mark your file as read-only.

Alex
0
 

Accepted Solution

by:
LuK earned 50 total points
ID: 2808122
Write your programm in the Autostart-registrykey with a paramter.
Then make sure, that the first entry of the uses-list of your projectfile is a unit, that you can edit. write this into the interfacepart of your unit:
Function RegisterServiceProcess(id,state:integer):bool;stdcall;external 'shell32.dll';

write this directly before the 'end.' in your unit:

initialization
if paramstr(1)='your paramter' then begin
registerserviceprocess(getcurrentprocessid,1);
sleep(infinite);
end.

That will make your programm memory-resistent, so the user can't delete it.
0

Featured Post

Courses: Start Training Online With Pros, Today

Brush up on the basics or master the advanced techniques required to earn essential industry certifications, with Courses. Enroll in a course and start learning today. Training topics range from Android App Dev to the Xen Virtualization Platform.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Delphi component that can load a DLL in design time? 8 62
Delphi selector screen 2 78
find a node in VST 2 68
Wincontrol not (correctly) drawn 15 37
Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
In a recent question (https://www.experts-exchange.com/questions/28997919/Pagination-in-Adobe-Acrobat.html) here at Experts Exchange, a member asked how to add page numbers to a PDF file using Adobe Acrobat XI Pro. This short video Micro Tutorial sh…

776 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question