Finding Process Name using Window Handle

Ruby
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

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

3

Oops, that was to the wrong thread.

Anukul S. wrote:

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

Hi,

I only looked briefly at this but you might find some clues
from solutions in other languages and be able to convert them
yourself.

http://forums.networkautomation.com/forum/messageview.cfm?FTVAR_FORUMVIEWTMP=Threaded&catid=4&threadid=2515

http://www.purebasic.fr/english/viewtopic.php?p=264755&highlight=&sid=d3f90592c990c78a0c1039efe8e1167e

I hope this is more helpful than getting no reply :slight_smile:

daz