Enumwindows hangs (freezing) application any idea?

[ERLN]

Hi I have using MFC dialog application. in that it is calling another dialog. in 2nd dialog i am enumerating the windows using enumwindows api. after calling the enumwindows application is freezing or hanging. any idea about this.

[David Crow]

Does your callback get called at all?

"One man's wage rise is another man's price increase." - Harold Wilson

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[rp_suman]

Please post the code snippet where the application hangs. APIs never hang application, only the way of using it. Something might went wrong in the callback.

-- "Programming is an art that fights back!"

[ERLN]

Dialog1 ::Onok()
{

HWND hShareWnd = NULL;
UpdateData();
bDesktopShareStarted = 	!bDesktopShareStarted ;
if(bDesktopShareStarted)
{
	int width = GetSystemMetrics(SM\_CXSCREEN);
	int height = GetSystemMetrics(SM\_CYSCREEN);
	int x = 0;
	int y =0;

	CVariableRegion VariableRgnDlg;   ////dialog 2 
	if(VariableRgnDlg.DoModal() ==IDOK)
	{
	
		hShareWnd = VariableRgnDlg.GetShareWindow();
		width = VariableRgnDlg.GetShareWidth();
		height = VariableRgnDlg.GetShareHeight();
		x = VariableRgnDlg.GetShareXPosition();
		y= VariableRgnDlg.GetShareYPosition();
		if(m\_bEnableAVIRecording)
			EnableAVIRecording();
		else
			EnableAVIRecording(FALSE);
		//Session
		ZeroMemory(szBuffer,sizeof(szBuffer));
		GetDlgItemText(IDC\_EDIT\_CODE,szBuffer,sizeof(szBuffer));
		lLength = \_tcslen(szBuffer) + 1 ; //reusing the same variable
		SetRegInfo(LASTUSED\_SESSION,szBuffer,REG\_SZ,&lLength);
		
		
		
		
		
		//Session pass
		ZeroMemory(szBuffer,sizeof(szBuffer));
		GetDlgItemText(IDC\_EDIT\_PASS,szBuffer,sizeof(szBuffer));
		lLength = \_tcslen(szBuffer); //reusing the same variable
		SetRegInfo(LASTUSED\_SESSION\_PASS,szBuffer,REG\_SZ,&lLength);
		
		
		
		
		//Client Name
		ZeroMemory(szBuffer,sizeof(szBuffer));
		GetDlgItemText(IDC\_EDIT\_CLIENT\_NAME,szBuffer,sizeof(szBuffer));
		lLength = \_tcslen(szBuffer); //reusing the same variable
		SetRegInfo(LASTUSED\_USERNAME,szBuffer,REG\_SZ,&lLength);
		
		
					
		
		//Record AVI 
		lLength = sizeof(m\_bEnableAVIRecording); //reusing the same variable
		m\_bEnableAVIRecording = IsDlgButtonChecked(IDC\_CHECK\_AVI\_REC);
		SetRegInfo(LASTOPTION\_AVI,(LPTSTR)&m\_bEnableAVIRecording,REG\_DWORD,&lLength);
		
		
		StartDesktopShare(hShareWnd,width,height,x,y,GetDlgItem(IDC\_TARGETWND)->m\_hWnd);
		GetDlgItem(IDC\_BUTTON\_DSK\_SHARE)->SetWindowText(TEXT("Stop Share"));
	
	}
	else
	{
		StopDesktopShare();
		GetDlgItem(IDC\_BUTTON\_DSK\_SHARE)->SetWindowText(TEXT("Start Share"));
		bDesktopShareStarted = 	!bDesktopShareStarted ;
	}


}
else
{
	StopDesktopShare();
	GetDlgItem(IDC\_BUTTON\_DSK\_SHARE)->SetWindowText(TEXT("Start Share"));
}

}

dialog 2 code//
in dialog 2 on button click this function is called.
long CVariableRegion::GetWindowsList()
{
HWND hListBox = NULL;
TCHAR sWindowCount[100] = {0};
int nWindowsCount = 0;
CWnd *hDeskopWnd = NULL;
TCHAR szWindowCountTitle[MAX_PATH]={0};

hListBox = GetDlgItem(IDC\_WIN\_LIST)-&g