How to use progress bar here

[V07]

Hi,
I have created a progress bar in the dialog box using this code

CONTROL         "",IDC_PROGRESS1,"msctls_progress32",WS_BORDER,20,67,122,14

And I have two functions to be executed(one will be executed on clicking the check box)

//Some modifications are mainly based on the work of Thomas1965
case WM_COMMAND:
		if (LOWORD(wParam) == IDOK)
		{
			checked = IsDlgButtonChecked(hDlg, IDC_CHECK1);
			if (checked)
				recycler();
			else
			RemoveDirectory("C:\\Users\\User\\Desktop\\Newfolder");
		}
		else if (LOWORD(wParam) == IDCANCEL)
			EndDialog(hDlg, LOWORD(wParam));

		return (INT_PTR)TRUE;

How do I show the progress of this two functions,

I tried msdn documentation but it is quiet difficult to figure out for this case

Please help me

Thank you in advance

[Thomas1965]

You got a PM.