Re: BringWindowToTop: "Simulate" "ALT-Tab" keys

From:

"AliR $VC++ MVP$" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 15 May 2007 16:53:53 GMT

Message-ID:

<BAl2i.6369$H_.2865@newssvr21.news.prodigy.net>

Alt-Tab is not the answer but here is how to simulate it

void SimulateAltTab()
{
   INPUT Inputs[4];
   memset(Inputs,0,sizeof(INPUT)*4);

   Inputs[0].type = INPUT_KEYBOARD;
   Inputs[0].ki.wVk = VK_MENU;

   Inputs[1].type = INPUT_KEYBOARD;
   Inputs[1].ki.wVk = VK_TAB;

   Inputs[2] = Inputs[1];
   Inputs[2].ki.dwFlags = KEYEVENTF_KEYUP;

   Inputs[3] = Inputs[0];
   Inputs[3].ki.dwFlags = KEYEVENTF_KEYUP;

   UINT Ret = SendInput(4,Inputs,sizeof(INPUT));
}

If you can describe your problem a little more clearer then maybe someone
can recommend a good solution.

A clear description would be something like:

Application A is a Dialog based application
Application B is an SDI application

Application B gets window handle to application A's main window.

and so on....

AliR.

"Guido Franzke" <guidof73@yahoo.de> wrote in message
news:eGebr%23wlHHA.3736@TK2MSFTNGP03.phx.gbl...

So I tried your hints with your order of the calls. Does not work in my
project.

My dialog starts the second application with CreateProcess(). Then I send
a
message to the process and it gives me its HWND.
I can do whatever I like with the handle. Neither ::UpdateWindow,
::RedrawWindow nor the couple SetForeground--BringToTop-SetActive make the
application repaint. SetForeground is ok, because it lets the app stay at
the top, but since it never repaints, my dialog stays in front (when I
click
the mouse, I click in my dialog, so it comes active to the top).

So there's no description of the "ALT-tabulator" key behaviour?

Is it possible to do something with the process handle that I get from
CreateProcess(), so that I can repaint the application window with it?

Thanks and regards,
Guido

"AliR (VC++ MVP)" <AliR@online.nospam> schrieb im Newsbeitrag
news:Eal2i.6361$H_.3026@newssvr21.news.prodigy.net...

No need to post a new message, there are people answering in your
original
post.

I had this same problem when I was writting my OLE drag and drop example.
(See COleDragAndDropListBox::ActivateWindow)
http://www.codeproject.com/combobox/oledragdroplistbox.asp

What I did was I made sure I call

SetForegroundWindow();
BringWindowToTop();
SetActiveWindow();

in that order on the main window of the application. That does it for me
everytime.

On other thing to concider is that the order that you restore your
windows
is also important. I am not sure which application is controling which,

but

if the one in the background is controlling the fullscreen one, then it
needs to tell the fullscreen one to maximize before the small one gets
maximized, otherwise this might happen:
Small application gets maximized, and you call SetForgroundWindow, then

the

fullscreen window gets maximized.

Ali

"Guido Franzke" <guidof73@yahoo.de> wrote in message
news:e4oYuNwlHHA.588@TK2MSFTNGP06.phx.gbl...

Hello NG,

so I still have the problem, that I have a CDialog occupying the total
screen (without Windows style, but not topmost), and in it a second
programme, of which I only have the HWND.
In my dialogue, one can maximize and minimize the second programme to

show

or hide the application. It's the same functionality like the normal
Windows
system menu.

After the second programme has started, it is in the foreground. When
in
my
dialog I switch the second programme (minimize and then maximize), the
programme does not repaint itself. I tried BringWindowToTop(hwnd) and
SetForegroundWindow(hwnd) and SetWindowPos(hwnd, HWND_TOPMOST,...) and
SetActiveWindow(hwnd), but the programme stays unpainted i.e. hidden.

When

I
force the programme to popup a warn message, I can see that the

programme

is
in the foreground - I see its popup window, but not the whole
background
of
the programme. Is this possible?

Ok, if I use the Windows keys "ALT-Tab", I can bring the second

programme

to
the top and it is repainted.
My question: Is it possible to programme the behaviour of "ALT-Tab" in

dialog, so that I can show the second programme?

Thanks in advance,
Guido