Excel Window Handle

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Excel Window Handle
 
Michał Głębowski




Posts: 42
 Joined: 2015-06-08
Dear Sirs,
I'd like to get Excel main window Handle to be able to use it to set AlwaysOnTop property with code like: 
SetWindowPos(WHandle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE or SWP_NOMOVE or SWP_NOSIZE)

Problem is that ExcelApp.ActiveWindow and no other has HWND Handle exposed. How to achieve this?
Michał.
Posted 10 Mar, 2016 04:54:49 Top
Andrei Smolin


Add-in Express team


Posts: 15285
 Joined: 2006-05-11
Michał,

What Excel version does your add-in support?

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 10 Mar, 2016 06:15:36 Top
Michał Głębowski




Posts: 42
 Joined: 2015-06-08
I am going to support Excel 2007+ (Now using 2007). All with ribbons. M.
Posted 10 Mar, 2016 07:10:49 Top
Andrei Smolin


Add-in Express team


Posts: 15285
 Joined: 2006-05-11
Michał,

What do you need to achieve? At what moment are you going to call SetWindowPos? In the Click event of a button?

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 10 Mar, 2016 07:20:16 Top
Michał Głębowski




Posts: 42
 Joined: 2015-06-08
Andrei, here you have something in VBA with similar functionality:
http://www.extendoffice.com/documents/excel/2030-keep-excel-window-on-top.html

Here is a sketch of my sub-function to use i.e. in "Always On Top" TCheckBox.OnChange: 


  procedure SetTopMost(WHandle: HWND; Value: Boolean);
  begin
    if Value then
      SetWindowPos(WHandle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE or SWP_NOMOVE or SWP_NOSIZE)
    else
      SetWindowPos(WHandle, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE or SWP_NOMOVE or SWP_NOSIZE);
  end;

  ...

  SetTopMost(MyExcel.Handle, MyCheckBox.Checked);
Posted 10 Mar, 2016 07:26:27 Top
Andrei Smolin


Add-in Express team


Posts: 15285
 Joined: 2006-05-11
Thank you. You can use the GetActiveWindow function from the Windows API.

Note that Excel 2013-2016 implements the SDI interface (one Excel.Window object per window). Accordingly, in these Excel versions they've provided Window.Hwnd property, see https://msdn.microsoft.com/en-us/library/office/dn292510%28v=office.15%29.aspx.

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 10 Mar, 2016 09:21:59 Top
Michał Głębowski




Posts: 42
 Joined: 2015-06-08
Thank you Andrei,
I used your hint with GetActiveWindow and it worked perfectly. I thought that if you communicated with Excel at low level it would have been easy to get Handle of its window. However thank you.
Michal
Posted 12 Mar, 2016 16:09:34 Top
Andrei Smolin


Add-in Express team


Posts: 15285
 Joined: 2006-05-11
Hello Michał,

Michał Głębowski writes:
I thought that if you communicated with Excel at low level it would have been easy to get Handle of its window.


We will consider providing a property/method. Thank you!

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 14 Mar, 2016 01:02:54 Top