half-disappearing text win32::gui

primus has asked for the wisdom of the Perl Monks concerning the following question:

hail monks,

i have an odd problem with win32::gui, when i run my application for an extended period of time, the text seems to not fully refresh. For example: in the window a label says, "This is a Test", and then after the program runs for a while and automatically updates the labels, the field will read, "This is a Te" and that's it. Where it is still suppose to read "This is a Test".

i am not sure why this would occur. on my label, i update using the $label->Text("This is a Test") method and i also do $label->Update(); doing the update method made no difference, nor did using the InvalidateRect method. granted i may be using them incorrectly but i dont think so. note: i called the InvalidateRect on the $main_window.

well, i dont know if anyone else has experienced this, but i am hoping for some hints, if you all would like a code example i would be more than happy to provide one.

thanks in advance monks

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Re: half-disappearing text win32::gui by dada (Chaplain) on Feb 11, 2003 at 14:46 UTC
hmmmm.... I suspect you didn't specify a size for the Label AND the original text was shorter than the one you're changing it to. when Win32::GUI creates a Label, it tries to fit the text specified in the `-text` parameter. but if you later change the text to something longer, the Label itself doesn't grow in dimension, so you may very well see only part of the text. try giving a (big enough) size to the Label and see if it works (BTW, some sample code would help a lot :-). cheers, Aldo King of Laziness, Wizard of Impatience, Lord of Hubris	[reply]
Re: half-disappearing text win32::gui by bbfu (Curate) on Feb 09, 2003 at 16:37 UTC
Without you posting the exact code is causing the problem (possibly stripped down to just what causes the problem), it's very difficult to say but it sounds like you might be changing the text to a string that is a different length/size than the original text and the width of the label is not automatically expanding to accommodate the new size of the text. I thought the labels always expanded but it's possible that under certain circumstances they don't. If you could post some code that duplicates the problem, we can try to help further. bbfu Black flowers blossum Fearless on my breath	[reply]


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