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 Topic  |
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Eric
18 Posts |
 Posted - Dec 05 2013 : 09:12:16
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Hi,
ImageEnMView1.FillFromDirectory(DirectoryListBox1.Directory, -1, false, '', False, '', False,False);
for i := 0 to ImageEnMView1.ImageCount - 1 do
begin
sFileName := ImageEnMView1.ImageFileName[i];
end;
there is the problem
if LoadonDemand = true sFileName work fine but if i load many files
when i drag the scroll bar it will crash
if LoadonDeman = false sfilename return nil
version is 5.05
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w2m
USA
1990 Posts |
Posted - Dec 05 2013 : 09:31:31
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I suggest you get the filenames in the OnAllDisplayed event, because the filenames may not be available until all the images are loaded.
When you call FillFromDirectory, then immediately try to get the filenames, all of the files may not have been loaded yet, so the ImageFilename is empty.
William Miller |
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Eric
18 Posts |
Posted - Dec 09 2013 : 00:08:05
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Hi,
After OnAllDisplayed the filename still empty.
I found Imageenversion 4.3.1 works fine and quickly more then 5.05.
and in 5.05 method FillfromDirectory always hanged when I drag scroolbar up & down |
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w2m
USA
1990 Posts |
Posted - Dec 09 2013 : 07:37:04
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Do you have 4.3.1 and 5.05 on your pc at the same time?
Perhaps the compiler is including code from both versions or is trying to use the old versions code when compiling with the new version. If you have both versions installed do you have paths set to both in the ide?
I do not see this problem here.
OnAllDisplayed always returns the filenames here.
William Miller |
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xequte
38616 Posts |
Posted - Dec 09 2013 : 13:47:04
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Hi Eric
In most situations you should use LoadOnDemand for best performance.
I'm surprised to hear it is crashing, as I personally tested this a lot for v5 when implementing TImageEnFolderMView (which uses FillFromDirectory internally).
Can you give us more detail?
Nigel
Xequte Software
www.xequte.com
nigel@xequte.com
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FillFromDirectory error reading filename
