bool IsCoveredByOtherWindow(HWND hWnd)
{
RECT rcTarget;
GetWindowRect(hWnd, &rcTarget);
bool isChild = (WS_CHILD == (GetWindowLong(hWnd, GWL_STYLE) & WS_CHILD));
if ( GetDesktopWindow() == hWnd )
hWnd = GetWindow(GetTopWindow(hWnd), GW_HWNDLAST);
do
{
HWND hCurWnd = hWnd;
HWND hChild;
while ( NULL != (hWnd = GetNextWindow(hWnd, GW_HWNDPREV) ))
{
//过滤了非窗口，没有显示的，无效的，非windows工具栏，置顶的窗口。如果不过滤非工具栏的句柄，那么会得到一些奇怪的窗口，会很难判断是否被遮住。
if (IsWindow(hWnd)&&IsWindowVisible(hWnd) && IsWindowEnabled(hWnd)&&!(GetWindowLong(hWnd,GWL_EXSTYLE)& WS_EX_TOOLWINDOW)&&!(GetWindowLong(hWnd, GWL_EXSTYLE) & WS_EX_TOPMOST))
{
RECT rcWnd;
GetWindowRect(hWnd, &rcWnd);
if ( !((rcWnd.right < rcTarget.left) || (rcWnd.left > rcTarget.right) ||
(rcWnd.bottom < rcTarget.top) || (rcWnd.top > rcTarget.bottom)) )
{
//char strType[60] = "";
//GetClassName(hWnd, strType, 256);
//if(strcmp(strType, "Shell_TrayWnd") != 0)
//{
// continue;
//}
char name[256] = "";
::GetWindowText(hWnd, name, 39);
return true;
}
}
}
if ( isChild )
{
hWnd = GetParent(hCurWnd);
isChild = (WS_CHILD == (GetWindowLong(hWnd, GWL_STYLE) & WS_CHILD));
}
else
{
break;
}
}while ( true );
return false;
}
也是别人的代码，在使用的时候，发现不过滤非windows工具栏的窗口，将会很难判断。所以修改了下。