MFC CProgressCtrl

[smurfiness]

I'm trying to use a CProgressCtrl to monitor a file download. All the downloading stuff works properly. However....

About halfway through the download, the CProgressCtrl stops updating. The download continues to the end... and at the end, the control executes its final step and shows 100% as if it had been updating all along.

Errr... can anyone tell me why it DOESN'T update all along?

Here's the code I'm using.

void __stdcall DownloadInitializeFunc(CNativeStubDlg *dialog,unsigned int nContent,unsigned int nStep)
{
	dialog->m_Progress1.SetRange32(0,nContent);
	dialog->m_Progress1.SetStep(nStep);
}

void __stdcall DownloadProgressFunc(CNativeStubDlg *dialog)
{
	dialog->m_Progress1.StepIt();
}

This is Visual C++ 6.0, if that matters.

--

Danny Smurf

[IGx89]

I was having the exact same problem until a week or two ago, when I posted my problem in the CodeProject forums and got this solution: "stop updating it so often". In my case, I was updating the status about 1000 times; I changed it to update only 50 times (approx. the max resolution my progress control can display), and now it works almost perfectly :).

[super_serge]

ya, you should update it less

[smurfiness]

  IGx89 said:

I was having the exact same problem until a week or two ago, when I posted my problem in the CodeProject forums and got this solution: "stop updating it so often". In my case, I was updating the status about 1000 times; I changed it to update only 50 times (approx. the max resolution my progress control can display), and now it works almost perfectly :).

Nope, no joy. Changed it to 100 (so that it updates as a percent complete instead of by number of bytes). Exact same result.

[smurfiness]

Okay, got a solution (for anyone interested). Possibly too much updating IS the cause, at least as far as the UI thread is concerned. Moving the update code off to a different thread and calling back to update the CProgressCtrl fixes the problem completely.