bool TrackPopupMenu(CWnd* pWnd, UINT nIDResource, UINT nFlags=TPM_LEFTALIGN|TPM_RIGHTBUTTON)
{
	CPoint CurPos;  CMenu* MMnu = new CMenu();
	if(!MMnu->LoadMenu(nIDResource)) return false;
	GetCursorPos(&CurPos);
	MMnu->GetSubMenu(0)->TrackPopupMenu(nFlags, CurPos.x, CurPos.y, pWnd);
	MMnu->DestroyMenu();
	delete MMnu;
	return true;
}

BOOL MakeWindowTransparent(HWND hWnd, int value=255)
{
	if(value > 255) value = 255;
	if(value < 0) value = 0;

	typedef DWORD (WINAPI *PSLWA)(HWND, DWORD, BYTE, DWORD);
	static PSLWA pSetLayeredWindowAttributes = NULL;
	static BOOL initialized = FALSE;
	#define WS_EX_LAYERED           0x00080000    
	#define LWA_COLORKEY            0x00000001
	#define LWA_ALPHA               0x00000002

	HMODULE hDLL = LoadLibrary ("user32");
    pSetLayeredWindowAttributes = (PSLWA) GetProcAddress(hDLL, "SetLayeredWindowAttributes");
	if(pSetLayeredWindowAttributes == NULL) return FALSE;
	SetWindowLong(hWnd, GWL_EXSTYLE, GetWindowLong(hWnd, GWL_EXSTYLE) | WS_EX_LAYERED);
    if(GetLastError()) return FALSE;
    int result = pSetLayeredWindowAttributes (hWnd, RGB(200, 200, 200), (int)(value), LWA_ALPHA);

	return result;
}