c# - How to set focus back to form after opening up a process (Notepad)? -

c# - How to set focus back to form after opening up a process (Notepad)? -

i open notepad programme using process.start() new opened notepad covers screen. want application maintain focus.

i (using same process.start) open ms excel , word focus form need write is:

this.focus();

but quirk notepad: open notepad (and other processes this)

process process = new process(); process.startinfo.useshellexecute = true; process.enableraisingevents = true; process.startinfo.filename = @"abc.log"; process.start();

now notepad takes focus.

i tried these:

this.activate(), this.focus(), needless mention

[dllimport("user32.dll", charset=charset.auto, exactspelling=true)] public static extern intptr setfocus(handleref hwnd); { intptr hwnd = myprocess.handle; setfocus(new handleref(null, hwnd)); } [dllimport("user32")] private static extern int setforegroundwindow(intptr hwnd); [dllimportattribute("user32.dll")] private static extern bool showwindow(intptr hwnd, int ncmdshow); private const int sw_show = 5; private const int sw_minimize = 6; private const int sw_restore = 9; { showwindow(process.getcurrentprocess().mainwindowhandle, sw_restore); setforegroundwindow(process.getcurrentprocess().mainwindowhandle); }

another lengthier solution got here.

all still keeps focus on notepad. why hard simply focus window, application's own window?

edit: @ best can open notepad minimized, still wouldn't give focus form after trying above codes. notepad opens minimized, focus still on notepad (something see in windows xp) , form out of focused.

i tried on net (so sure :)). @ best form on top of other forms, without focus (going @hans passant's method). going heavy blocks of codes over, somehow felt aint gonna easy. used setforegroundwindow() chunks of other code. never thought simply setforegroundwindow() trick.

this worked.

[dllimport("user32.dll")] [return: marshalas(unmanagedtype.bool)] static extern bool setforegroundwindow(intptr hwnd); private void button1_click(object sender, eventargs e) { process process = new process(); process.startinfo.filename = @...\abc.log"; process.start(); process.waitforinputidle(); //this key!! setforegroundwindow(this.handle); }

at times method yields in focus on parent form (in cases desired form modal kid form of parent form); in such cases, add together this.focus() lastly line..

even worked:

microsoft.visualbasic.interaction.shell(@"notepad.exe d:\abc.log", microsoft.visualbasic.appwinstyle.normalnofocus);

solution provided here

c# winforms process focus windows-shell