druid wrote:
I am still trying to get this to completly work so I can
figure out how to preload a field on a popup form from
the main form.
Based on the code posted in a different message, here is
my project.
I have indicated where the program chokes
Error says it is off screen, then crash's on memory error
In looking where you indicated the error happens (//THESE GUYS), one
thing that I should have warned about was that you are trying to
dynamically change the text of a label. There is one significant
gotcha; you must not try to copy a string that is larger than the
original declaration of the label. This is because the original
declaration is used to set aside some memory space for the label text.
If you try to copy a larger string into that position then you will
overflow the allocated memory.
In your code you declared:
LABEL " " LabelID_Input1 AT (5 20) FONT 1
allowing only 1 byte plus the trailing NULL. Then you try to do this:
FrmCopyLabel(formNew,LabelID_Input1, labelStr1);
where labelStr1="lbl1"
...so you've tried to write a 4char string onto a 1char memory location.
Try adding extra padding into the label declarations. Like this:
LABEL " " LabelID_Input1 AT (5 20) FONT 1
Another way to do it is to use a non-editable field instead of the
label. It takes a little more coding, but it doesn't have that gotcha.
Bob
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