Guten Morgen Thomas,

Surely. But not one you can rely on - or force your customer to.
;)

GreaseMonkey violates to No-JavaScript-Rule, for example.

>>There is no way to figure this out.
>
>Astrid would not have given up this early ;-))
>Basic task needs to be broken down to FB open in 1 Tab.
>Can be done with any process giving access to Browser DOM.
>As you mention, Shellexecute potentially calling up ANY browser set active on machine problematic.
>Needs to install common solution similar to GreaseMonkey on all browsers - was there for Firefox and Chrome.
>
>Better: create special Exe hosting WebBrowser / WebView, start that one and .Navigate().
>Rick has several GREAT articles about IE WebBrowser, on Youtube very new video from Virtual FoxFest by Christoph on using CefSharp (in the video also mentioned expensive solution via COM) - he mentions bridging via JS, which would be my first try as well.
>
>Also possible: Automating Selenium, there you can pick browser, so identify started browser from Shellexecute (or read Registry...) and automate that one via Selenium...
>
>certainly doable, but too much work for benefit of such a task
>
>regards
>thomas
>
>>The first problem is, what program is called by ShellExecute? There is a variety of browsers out there, but it must not be a browser at all.
>>The second is, how to ask this program? There is no interface standardized.
>>
>>>Dear Sir,
>>>
>>>I am using these codes to open whatsapp
>>>
>>>

>>>Declare  Integer FindWindow In WIN32API String , String
>>>Declare  Integer SetForegroundWindow In WIN32API Integer
>>>Declare  Integer  ShowWindow  In WIN32API Integer , Integer
>>>Declare Integer ShellExecute In shell32.Dll ;
>>>	INTEGER hndWin, ;
>>>	STRING cAction, ;
>>>	STRING cFileName, ;
>>>	STRING cParams, ;
>>>	STRING cDir, ;
>>>	INTEGER nShowWin
>>>
>>>
>>>cmd='https://web.whatsapp.com'
>>>
>>>=ShellExecute(0, 'open', cmd,'', '', 1)
>>>

>>>
>>>https://web.whatsapp.com/ opens perfectly. No issue
>>>
>>>If I run above codes again then a new instance opens
>>>How to know https://web.whatsapp.com/ is already opened?
>>>If found opened already then codes must not open a new instance but go focus to previously opened website.
>>>
>>>Regards