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OrbWorks Community Forum • View topic - Check for MathLib
Page 1 of 1

PostPosted: Thu Feb 09, 2006 10:44 am
by MN OrbUser
Is there a way to check if MathLib is present so the app can notify the user before trying to use any of the MathLib functions, and exit gracefully?

PostPosted: Thu Feb 09, 2006 9:39 pm
by exit_head
i dont remeber if orbforms(or PCA) have a func to check but you can always do a dbopen(or orbC eqivilent) and try and open it.

PostPosted: Fri Feb 10, 2006 12:21 pm
by MN OrbUser
Thanks, it worked. The actual code I used was:


Database CheckForMathlib;

handler QCalc.onstart() {
// Is mathlib present?
if (CheckForMathlib.open("MathLib",0)==0) {
alert("You need MathLib installed!");
}
else
mainForm.load();
}

PostPosted: Sat Feb 11, 2006 9:36 pm
by MN OrbUser
Although this captures whether MathLib is available or not, it still does not exit the application gracefully. A blank screen appears after the message "MathLib is needed" and the OK button is tapped, and it doesn't go away until the home icon is tapped.

Is there an exit function or system or event message that can be sent after the message is dismissed?

PostPosted: Sun Feb 12, 2006 9:29 am
by exit_head
launch the launcher application. i think its "Inch"

PostPosted: Sun Feb 12, 2006 3:18 pm
by dewey
Call app.abort().