INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Usefull Functions & Procedures

How to ensure that only one instance of my application is running in my desktop. by ramani
Posted: 19 Jun 01

Your Main.PRG. shall start with the following line...

=myInstance("A name for your Application")

Then just copy the following code and add it at the end of your main.prg.
******************************************
PROCEDURE myInstance
PARAMETERS myApp
    =ddesetoption("SAFETY",.F.)
    ichannel = DDEINITIATE(myapp,"ZOOM")
    IF ichannel =>0
        =DDETERMINATE(ichannel)
        QUIT
    ENDIF
    =DDESETSERVICE(myapp,"define")
    =DDESETSERVICE(myapp,"execute")
    =DDESETTOPIC(myapp,"","ddezoom")
    RETURN
******************************************
PROCEDURE ddezoom
    PARAMETER  ichannel,saction,sitem,sdata,sformat,istatus
    ZOOM WINDOW SCREEN NORM
    RETURN
**********************************************************
** Ramani  (Subramanian.G), FoxAcc, ramani_g@yahoo.com
** EOF
**********************************************************
Evaluate this to make others know how useful is this


Back to Microsoft: Visual FoxPro FAQ Index
Back to Microsoft: Visual FoxPro Forum

My Archive

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close