How to get the handles of all the windows opened in wince?

[ujjawal kumar]

I want to retrieve handles for all the windows opened in wince machine. Using my application i need to retrieve the handle for the windows that has been opened in desktop and list the title of those windows in a list view . Thanks in Advance.

[Rajkumar R]

have a look into [EnumWindows^] and [GetWindowText^] and search CP for ListView

[ujjawal kumar]

I have tried with the folowing code snippet.Still i am not able to retrieve the handle for the window. WNDENUMPROC lpEnumFunc = &EnumWindowsProc; TCHAR szName[50]; HWND hTempWnd = NULL; lpEnumFunc(hTempWnd,lParam); if(EnumWindows(lpEnumFunc ,LPARAM(hWnd))) MessageBox(hWnd,L"EnumWindows Successful",NULL,0); lpEnumFunc(hTempWnd,lParam); GetWindowText(hTempWnd,szName,50); MessageBox(hTempWnd,szName,szName,0);

[Rajkumar R]

Well, well try, If that API was supposed to work as per your understanding there are possible risks being caught in an infinite loop or referencing a destroyed window handle. Call Back functions of an Windows API are not that supposed to be called by you.

struct MYLISTVIEW
{
};

BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
{
#define MAX_TEXT_LEN 256
MYLISTVIEW *plvData = (MYLISTVIEW *)lParam;
if (plvData)
{
TCHAR szWndText[MAX_TEXT_LEN] = _T("");

	LONG lStyle = GetWindowLong(hwnd, GWL\_STYLE);
	LONG lExStyle = GetWindowLong(hwnd, GWL\_EXSTYLE);

	// filter the window handles depending on your need
	if (IsWindowVisible(hwnd) && !GetParent(hwnd) && hwnd != GetDesktopWindow() && (
		/\*lExStyle & WS\_EX\_APPWINDOW || \*/
		!(lExStyle & WS\_EX\_NOACTIVATE || lExStyle & WS\_EX\_TOOLWINDOW)))
	{			
		RECT rc = {0};
		GetWindowRect(hwnd, &rc);
		if (rc.bottom - rc.top && rc.right - rc.left)
		{
			GetWindowText(hwnd, szWndText, MAX\_TEXT\_LEN);

                            // add the text to your view
			AddWndTextToListView(plvData, szWndText);
		}			
	}
}
return TRUE;	

}

MYLISTVIEW g_lvData;

void AddOpenedWindowsToListView()
{
EnumWindows(EnumWindowsProc, (LPARAM)&g_lvData);
}