Finding Process Name using Window Handle

ruby-talk
1

Hi,

In my project, I have a requirement to work with any client application
which I need to kill (if an instance exists) before invoking a fresh
instance. Currently, I have hardcoded the name of the process to
terminate a client before opening it. What I am looking for is a way to
find the process name (using any Win32API or using a Window Handle). I
found out how to get a Window Handle for the client application that is
invoked, is that something I can use to get the process name, or any
other way? Please see the code I am using:

     def killApp
  wmi = WIN32OLE.connect("winmgmts://")
  processes = wmi.ExecQuery("select * from win32_process")
  for process in processes do
     if process.Name.include? "AppName.exe" then
    process.Terminate
     end
  end
     end

Would really appreciate your help.

Thanks,
Anukul

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2

Ted Baker wrote:
> Hi all,
>
> I have successfully managed to implement the following apis
>
> findWindow=Win32API.new("user32.dll", "FindWindow", ['P','P'], 'N')
> sendMessage=Win32API.new("user32.dll", "SendMessage",['N','N','N','P'],
> 'N')
> getMenu=Win32API.new("user32.dll", "GetMenu", ['N'], 'N')
> getMenuItemCount=Win32API.new("user32.dll", "GetMenuItemCount",['N'],
> 'N')
> getSubMenu=Win32API.new("user32.dll", "GetSubMenu", ['N','N'], 'N')
> deleteMenu=Win32API.new("user32.dll", "DeleteMenu", ['N','N','N',],'N')
> drawMenuBar=Win32API.new("user32.dll", "DrawMenuBar", ['N'], 'N')
> setWindowLong=Win32API.new("user32.dll", "SetWindowLong",['N','N','N'],
> 'N')
>
> but am unable to get getMenuItemInfo to work, this is because it takes a
> type structure and boolean as parameters and i can't figure it out...
>
> this is what i have
>
> getMenuItemInfo =Win32API.new("user32.dll", "GetMenuItemInfo",
> ['L','L','NEED','NEED'], 'L')
>
> the api is as follows...
>
> BOOL GetMenuItemInfo(
> HMENU hMenu,
> UINT uItem,
> BOOL fByPosition,
> LPMENUITEMINFO lpmii
> );
>
> typedef struct tagMENUITEMINFO {
> UINT cbSize;
> UINT fMask;
> UINT fType;
> UINT fState;
> UINT wID;
> HMENU hSubMenu;
> HBITMAP hbmpChecked;
> HBITMAP hbmpUnchecked;
> ULONG_PTR dwItemData;
> LPTSTR dwTypeData;
> UINT cch;
> HBITMAP hbmpItem;
> } MENUITEMINFO, *LPMENUITEMINFO;
>
> any help greatly appreciated...
>
> Thanks
>
> Ted

Very late reply.

You should have been directed towards Ruby/DL in the
standard library.

This is now preferred to Win32API which is in the process
of being obsoleted.

http://www.jbrowse.com/text/rdl_en.html

daz