C / C++ / MFC

LRESULT CALLBACK GlobaListProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
   	
	switch (message)
	{ 
	case WM_NOTIFY:
			
		if(((LPNMHDR)lParam)->code == NM_CLICK)
				{
					iSelect=SendMessage(hList,LVM_GETNEXTITEM,-1,LVNI_FOCUSED);				    
					if(iSelect==-1)
					{                      
					  break;
					}					
					
					index=iSelect;		
					ShowWindow(hWndinoutfiledir,SW_HIDE);			
					ShowWindow(hwndEncrypt,SW_HIDE);					
					//Hide File Split window.
					ShowWindow(hwndSplit,SW_HIDE);
					//Hide encoder window.			
					ShowWindow(hwndUpload,SW_HIDE);
					<code>ShowWindow(hwndTagEditorDlg ,SW_SHOW);</code>					
					//::PostMessage(hwndTagEditorDlg,IDC_HIDDEN_BTN,NULL,NULL);					
					UpdateWindow(hwndTagEditorDlg);				
				}
	
	    break;
	}
} 

now i need effect of that click event on the following call back function <code>ShowWindow(hwndTagEditorDlg ,SW_SHOW) </code> its call but its not updated the window with 
empty edittext control what should i do?

addtional i want to pass the iSelect value also for the further processing of my global array of object _ProtectSet[index] for dispaly the old values which is stored in objetc.

LRESULT CALLBACK  TagEditorProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
Utility util;
switch(message)
{
case WM_INITDIALOG:
	if(_ProtectSet[index].listviewIndex==index) 
		{
			SetDlgItemText(hDlg,IDC_EDIT_ARTIST,util.ConvertStringToWCHAR(_ProtectSet[index].artist));  
			SetDlgItemText(hDlg,IDC_EDIT_ALBUM,util.ConvertStringToWCHAR(_ProtectSet[index].album));
			SetDlgItemText(hDlg,IDC_EDIT_YEAR,util.ConvertStringToWCHAR(_ProtectSet[index].year));
			SetDlgItemText(hDlg,IDC_EDIT_COPYRIGHT,util.ConvertStringToWCHAR(_ProtectSet[index].copyright));
			SetDlgItemText(hDlg,IDC_EDIT_AUTHOR,util.ConvertStringToWCHAR(_ProtectSet[index].author));
			SetDlgItemText(hDlg,IDC_EDIT_GENRE,util.ConvertStringToWCHAR(_ProtectSet[index].genre));
			SetDlgItemText(hDlg,IDC_EDIT_DESCRIPTION,util.ConvertStringToWCHAR(_ProtectSet[index].desc));
		}
	break;

case WM_COMMAND:

switch(LOWORD(wParam))
{
	case IDC_SAVE_TAG:		
		_ResideId3TagForSelectedFile(hDlg);	
		MessageBox(hDlg,_T("Your file has been saved"),_T("encoder"),0);		
		break;

	case IDC_HIDDEN_BTN:
		MessageBox(0,_T("HAY"),_T("HI"), 0);
		::PostMessage(hDlg,WM_INITDIALOG,0,0);
		break;
  } 

 break;
}
return FALSE;
}