If I have a handle to a window, how do I take a screenshot of any new child windows when they show up? Right now I have code that takes a screenshot every .1 seconds of a windows form. When I click on a drop down list box the subsequent screenshots do not include it. Using spy++ I can see that a new child window was created but not sure how to make sure it is included in my screenshots. Does anybody have any code that might include child windows?
Thanks in advance,
Bob
Yes, the dropdown of a ComboBox is a special window, a LISTBOX. .NET doesn't provide a built-in way to get the handle for it, you can P/Invoke SendMessage and send the CB_GETCOMBOBOXINFO message. COMBOBOXINFO.hwndList contains the handle.
Note that there are other controls that behave that way, DateTimePicker for example. Also note that the window can extend beyond the bounds of your form.
The code in this thread should be helpful to get the P/Invoke right.
Related
I am facing a strange issue with my test automation scripts when executed through HP UFT 12.01
Our AUT is a web based application developed in actimize. During my test flow, lets say at 5th step i need to invoke a popup browser (child) from my main page. The new popup browser will not have any menus or back/fwd buttons.
3 out of 10 executions, during 5th step my main browser gets refreshed to invoke the popup and when popup rendered fully, contents and views got switched now. i.e., main browser has the contents which are supposed to display in popup window (with menu bar and back/fwd buttons) and pop-up window has main page contents (without menu bar, back/fwd buttons) & state when i performed click operation.
This is strange and i could not really conclude if its browser issue or UFT issue. I have also checked with functional team and they never faced, so this is happening only through UFT execution and speculating it could be UFT issue.. any help pls?
This sounds like it could be either:
1) an actual bug in your UAT
2) a problem with QTP object identification.
If it's #2, here's some things to check. First, make sure that QTP can correctly and reliably identify the two different "browsers". (i.e. while both are on the screen, use the "Highlight in Application" button found the Object Repository window while each of the objects is selected. I would try this for both a normal run and immediately after the browsers get switched (use a break point if necessary)
If there is a problem with QTP identifying the windows incorrectly, then you might want to add additional Description properties to the test object in the OR so that it can lock onto the right one more reliably. I usually use GUISpy to spy on something on the page, then in Object hierarchy I click on the top object (the browser), then click "Copy identification properties to the Clipboard" button, then paste the results into a notepad. Find one of those properties that uniquely identifies the browser objects from anything else. Sometimes I have to use the URL property (with some REGEX magic to isolate the specific page without making it TOO specific)
How can I disable those 3 standard cut/copy/paste commands in the context menu of the native Windows OS edit control?
I also need to disable the equivalent clipboard-related commands like CTRL+C/CTRL+V.
Is there a special edit control style or anything else we can use to disable all copy/paste operations with one easy setting?
Typically, when a control displays a popup menu, a WM_INITPOPUPMENU message is generated which "allows an application to modify the menu before it is displayed, without changing the entire menu."
Unfortunately, a standard Win32 Edit control does not generate that message for its default popup menu, as confirmed in a November 2000 article of MSDN Magazine (the link on MSDN itself is dead, but this link is from the Internet Archive):
MSDN Magazine, November 2000, C++ Q&A:
Q: Why isn't a WM_INITMENUPOPUP message generated when you right-click an edit control?
A: I can't tell you why there isn't one, but I can confirm it's true ... edit controls don't send WM_INITMENUPOPUP. The edit control must be calling TrackPopupMenu with a null HWND handle and/or TPM_NONOTIFY, which tells the menu not to send notifications. It's possible (and again I'm only guessing) that the authors were trying to improve performance by reducing message traffic ... In any case, suppose you want to add your own menu items to the edit control context menu. How do you do it? Alas, you have no choice but to reinvent the wheel
So the only option available is to subclass the edit control and handle the WM_CONTEXTMENU message instead, creating and displaying your own custom popup menu as needed. Which means you have to manually duplicate the functionality of any standard menu items that you want to appear in your custom menu.
Update: there is a way to access and modify the edit control's standard popup menu after all (I just tested it and it worked). TecMan provided a link to a VBForums discussion that talks about it, however it gets a few details wrong. I got the correct details from a PureBasic forum discussion.
The correct approach is as follows:
subclass the edit control to intercept the WM_CONTEXTMENU message. Either SetWindowSubClass() or SetWindowLongPtr(GWL_WNDPROC) can be used, though the first is preferred.
when the WM_CONTEXTMENU message is received, call SetWindowsHookEx() to install a thread-local hook (use 0 for the hMod parameter and GetCurrentThreadId() for the dwThreadId parameter). Either a WH_CBT or WH_CALLWNDPROC hook can be used. Then dispatch WM_CONTENTMENU to the default message handler via DefSubclassProc() or CallWindowProc() to invoke the standard popup menu.
inside the hook procedure, when a HCBT_CREATEWND (WH_CBT hook) or WM_CREATE (WH_CALLWNDPROC hook) notification is received, pass the provided HWND to GetClassName(). If the class name is #32768 (the standard window class name for menus, as documented on MSDN), post (very important!) a custom window message using PostMessage(), specifying the menu window's HWND in the message's WPARAM or LPARAM parameter, to any HWND that you control, such as your main window, or even the edit control itself (since it is already subclassed). You will need the menu's HWND in the next step. You can optionally now uninstall the hook at this time, or wait for DefSubclassProc()/CallWindowProc() to exit (it will exit after the menu has been dismissed). You need to use PostMessage() because the menu window has not created its HMENU yet at this time. PostMessage() delays the next step until after the HMENU is ready.
when the custom window message is received, send a MN_GETMENU message via SendMessage() to the menu's HWND that you obtained from the hook. You now have the menu's HMENU and can do whatever you want with it.
to disable the Cut, Copy, and Paste menu items, call EnableMenuItem(). Their menu item identifiers are the same values as the WM_CUT, WM_COPY and WM_PASTE messages, respectively (this is not documented by Microsoft, but is consistent across Windows versions).
Update: I just found a much simpler solution (which also worked when I tested it).
subclass the edit control to intercept WM_CONTEXTMENU, as described above.
when the message is received, call SetWinEventHook() to install a thread-local event hook (set the hmodWinEventProc parameter to 0, the idProcess parameter to GetCurrentProcessId(), the idThread parameter to GetCurrentThreadId(), and the dwFlags parameter to 0 - not WINEVENT_INCONTEXT!). Set the eventMin and eventMax parameters both to EVENT_SYSTEM_MENUPOPUPSTART so that it is the only event you receive. Then dispatch the message to the default handler to invoke the popup menu.
when your event callback is called, the menu has already been fully initialized, so you can send the MN_GETMENU message to the provided HWND, which will be the menu's window (the callback's idObject parameter will be OBJID_CLIENT and the idChild parameter will be 0).
manipulate the HMENU as needed.
unhook the event hook when done using it, as described above.
As you can see here, this does work.
Before modifying the menu:
After disabling the menu items:
Even deleting the menu items:
You could leave the options visible but lock the clipboard from usage.
If this solution suits you all you need to do is make a program that opens the clipboard by calling OpenClipboard(NULL). In order to release the clipboard call CloseClipboard().
One approach (similar to hypmir's idea but not quite as intrusive) is to simply overwrite the clipboard with "DATA REMOVED BY TecMan" whenever it is updated. You could do this as a registered clipboard viewer.
Open the clipboard, clear all formats, add CF_TEXT with the notice, close it.
I would use a short delay (maybe a timer callback) so that you make your update AFTER the first update has been processed by any other registered clipboard viewers on the system.
Your mileage may vary.
Abusing the clipboard like this is never a good idea.
I found one interesting idea of how to get the handle of the edit control's context menu on vbforums.com:
http://www.vbforums.com/showthread.php?776385-RESOLVED-Modify-right-click-context-menu-in-standard-controls
It demonstrates how to add custom context menu items to the standard OS context menu. I think, this idea can be used to modify the menu too. Theoretically I need to enumerate the menu items and disable the items related to the copy/paste commands. The question is how to know whether a menu item is related to copy/paste? Getting the menu item text is a bad idea ;)
Another problem of that code is that it is based on some Windows features that are not documented. I've checked the solution, it still works in Windows 10, but who knows how the edit control context menu may be changed in the future updates of the OS...
I'm creating an ActiveX using VS and MFC. Initialisation is done in constructor of my control. There the m_hWND window handle is not valid, it is still NULL.
So: is there some kind of "initialisation complete" function available in COleControl() that is called as soon as m_hWnd is valid and additional controls can be added to it?
Thanks!
It's been a while since I've written an ActiveX control, but, I seem to remember using OnResetState, or, one of the other events shown in the link to handle initialization.
Remember that there are windowless ActiveX controls. For such controls you never get a window handle!
So normally after the creation a ActiveX Control is "initialized", and you can use it.
ActiveX controls usually reside in the same Thread so there is nothing that can run beside your code and do further initialization.
If this doesn't help you Need to refine your question.
See discussion here too about ActiveX controls without a window handle.
I think OnActivate is what you are looking for.
I'm new to the testing world, so my question might seem a lil' bit too naive and stupid. At risk of looking/sounding stupid, my question is this:
I've been trying to test the contents in a pop-up window on my company's web app. I've figured out how to detect the pop-up window for now, but i can't get selenium to 'click' on the link inside of that pop-up window. there are multiple pop-ups in this web app so it's really difficult for a newbie like to create a test case.
I tried the click, clickAndWait, mouseDown and mouseKey as an option but it is still not working. can somebody guide me through this?
TIA,
Angela
When the popup appears you will need to move the context of the script over to the window.
You can do this by using the selectWindow | window_ID_from_the_link and then do the clicking.
If that doesn't work you may need to use the openWindow command to create the popup and then start testing against that.
Use getConfirmation/getassert/getprompt according to the type of the pop up you use .....By default they will be clicked with ok option by the server and you have to consume the message from the pop up for the other selenium commands to work correctly.............
The above suggestion is given from my experience in working with selenium RC used with perl..........
Perhaps you can try the FireFox Plugin. You can click through your application and record your steps. After recording the steps you can easily save it as some sort of file or unittest.
I'm not sure about the command you should use for the popups, maybe the firefox plugin will help in this manner (it will create your commands).
If you created the popup with a div tag, U can use following code to stop the selenium server until the popup opens.
int second = 0;
while(!selenium.IsElementPresent(mylink))
{
if(second >= 5)
break;
Thread.Sleep(1000);
second++;
}
After a popup opens, Now you can click on any link inside the popup.You have to use the below code.
selenium.click("id=popup_link"); (popup_link is the id of the link present on the popup)
Good Luck.
Not sure if this is what you are looking for, but if you want to click on something specific that Selenium is not able to handle - like browser pop-ups or other pop-ups, you can use Sikuli Script. Sikuli does an image comparison and clicks on the same - this is very powerful.
Here is the link: http://www.sikuli.org/
I have developed a COM component (dll) that implements an Edit() method displaying a WTL modal dialog.
The complete interface to this COM component corresponds to a software standard used in the chemical process industry (CAPE-OPEN) and as a result this COM component is supposed to be usable by a range of 3rd party executables that are out of my control.
My component works as expected in many of these EXEs, but for one in particular the Edit() method just hangs without the dialog appearing.
However, if I make a call to ::MessageBox() immediately before DoModal() the dialog displays and behaves correctly after first showing the MessageBox.
I have a suspicion that the problem may be something to do with this particular EXE running as a 'hidden window application'.
I have tried using both NULL and the return value from ::GetConsoleWindow() as the dialog's parent, neither have worked.
The dialog itself is an ATL/WTL CPropertySheetImpl.
The parent application (EXE) in question is out of my control as it is developed by a (mildly hostile) 3rd party.
I do know that I can successfully call ::MessageBox() or display the standard Windows File Dialog from my COM component, and that after doing so I am then able to display my custom dialog. I'm just unable to display my custom dialog without first displaying a 'standard' dialog.
Can anyone suggest how I might get it to display the dialog without first showing an unnecessary MessageBox? I know it is possible because I've seen this EXE display the dialogs from other COM components corresponding to the same interface.
Are you using a parent for the Dialog? e.g.
MyDialog dialog(pParent);
dialog.DoModal();
If you are, try removing the parent. Especially if the parent is the desktop window.
Depending on how the "hidden window" application works, it might not be able to display a window. For example, services don't have a "main message loop", and thus are not able to process messages sent to windows in the process. i.e, the application displaying the window should have something like this:
while(GetMessage(&msg, NULL, 0, 0))
{
if(!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
in WinMain.
This isn't supposed to be reliable - but try ::GetDesktopWindow() as the parent (it returns a HWND).
Be warned - if your app crashes, it will bring down the desktop with it. But i'd be interested to see if it works.
It turns out I was mistaken:
If I create my dialog with a NULL parent then it is not displayed, and hangs the parent application
However if I create my dialog with ::GetConsoleWindow() as the parent then the dialog is displayed; it just fooled me because it was displayed behind the window of the application that launched the parent application
So now I just have to find out how to bring my dialog to the front.
Thanks for the answers ;-)
Whatever you do, do not use the desktop window as the parent for your modal dialog box.
See here for explanation: http://blogs.msdn.com/b/oldnewthing/archive/2004/02/24/79212.aspx
To quote the rationale:
Put this together: If the owner of a
modal dialog is the desktop, then the
desktop becomes disabled, which
disables all of its descendants. In
other words, it disables every window
in the system. Even the one you're
trying to display!