My large delphi 1 program occasionally gets the fatal error "cannot change visible in onshow or onhide" soon after startup. I do not directly manipulate the visible property, nor do I override the onshow or onhide event handlers. I have eliminated this problem on my own HW (just by rearranging code) but others still report the problem. I do not have a clue as to what causes this or what I am doing wrong! Any suggestions (based on knowledge, please)?
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cannot change visible in onshow or onhide
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How soon after startup?
One thing you can do is to override the OnAppException Code, and add a breakpoint in this procedure.
Then you can check, by using Call Stack, the procedure who led you there.
See my answer in this thread:
Note, all autocreated form's constructor is fired upon application start. The error might be in one of theese.
//Nordlund
One thing you can do is to override the OnAppException Code, and add a breakpoint in this procedure.
Then you can check, by using Call Stack, the procedure who led you there.
See my answer in this thread:
Note, all autocreated form's constructor is fired upon application start. The error might be in one of theese.
//Nordlund
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