hit StatusDlg cancel button error

[Doris]

when setup download software from ftp.hit the cancel button of StatusDlg window this error happen.
Why does this error happen?

[Ulrich]

You would need to provide your project file. We can't guess what happens on lines 12, 65, 258, in function DownloadMySQL, etc...

Ulrich

[Doris]

How to interrupt FTP.Download? I write below in CallbackFunction

if StatusDlg.IsCancelled() then
FTP.Disconnect();
Application.Exit();
return false;
else
return true;
end;

[Doris]

lines 258 call function DownloadMySQL
line65 is "FTP.Download(MySQL_64_FILENAME, MySQL_64_PATH, DownloadCallback)",in function DownloadMySQL
line 12 is Application.Exit(); in CallbackFunction
CallbackFunction like below


function DownloadCallback (nDownloaded, nTotal)
-- Convert total and downloaded bytes into formatted strings
sDownloaded = String.GetFormattedSize(nDownloaded, FMTSIZE_AUTOMATIC, true);
sTotal = String.GetFormattedSize(nTotal, FMTSIZE_AUTOMATIC, true);
StatusDlg.SetMessage(SetupData.GetLocalizedString( "MSG_DOWNLOADING_FILE"));
StatusDlg.SetMeterRange(0,65534);
-- Set meter position (fraction downloaded * max meter range)
StatusDlg.SetMeterPos((nDownloaded / nTotal) * 65534);
-- Continue with the download.
if StatusDlg.IsCancelled() then
FTP.Disconnect();
Application.Exit();
return false;
else
return true;
end;
return true;
end

[Ulrich]

You shouldn't attempt to end the application in the callback function. Instead, set a variable, and check if you need to exit the application after FTP.Download() by inspecting the content of that variable.

Ulrich

[Doris]

You shouldn't attempt to end the application in the callback function. Instead, set a variable, and check if you need to exit the application after FTP.Download() by inspecting the content of that variable.

Ulrich

thanks a lot