How to set focus to other process ?

[Sharon]

I need to allow single instance of my process.
I did found the other System.Diagnostics.Process as follow:
System.Diagnostics.Process currentProcess =
System.Diagnostics.Process.GetCurrentProcess();
// Get all instances of GciViewer running on the local machin.
System.Diagnostics.Process[] localByName =
System.Diagnostics.Process.GetProcessesByName("Gci Viewer");
foreach( System.Diagnostics.Process process in localByName )
{
if( currentProcess.Id != process.Id )
{
// TO DO: How to set the focus to the process !!
}
}

How can I set focus to other process?
--
Thanks
Sharon

[Michael Nemtsev]

Hello Sharon,

First, use Mutex with "Global\" pattern for single app instance
And SetForegroundWindow + MainWindowHandle API function (apply pinvoke) to
bring process on front

S> I need to allow single instance of my process.
S> I did found the other System.Diagnostics.Process as follow:
S> System.Diagnostics.Process currentProcess =
S> System.Diagnostics.Process.GetCurrentProcess();
S> // Get all instances of GciViewer running on the local machin.
S> System.Diagnostics.Process[] localByName =
S> System.Diagnostics.Process.GetProcessesByName("Gci Viewer");
S> foreach( System.Diagnostics.Process process in localByName )
S> {
S> if( currentProcess.Id != process.Id )
S> {
S> // TO DO: How to set the focus to the process !!
S> }
S> }
S> How can I set focus to other process?
S>
---
WBR,
Michael Nemtsev :: blog: http://spaces.msn.com/laflour

"At times one remains faithful to a cause only because its opponents do not
cease to be insipid." (c) Friedrich Nietzsche

[Sharon]

I was hoping for C# API/code.

But if I must use the Win32 API; can I use the send SendMessage() with
WM_SETFOCUS ?

Can you post some sample code on how to set the focus to the other process?
--
Thanks
Sharon

[Nicholas Paldino [.NET/C# MVP]]

Sharon,

Is this another instance of your own application that you are trying to
bring to focus (for a single-instance application)? If so, check out this
previous thread. It deals with this issue and should give you guidance on
how to enable this functionality in your app:

http://groups.google.com/group/micro...2d86fcc6e071fe

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Sharon" <Sh*****@newsgroups.nospam> wrote in message
news:1B**********************************@microsof t.com...

I was hoping for C# API/code.

But if I must use the Win32 API; can I use the send SendMessage() with
WM_SETFOCUS ?

Can you post some sample code on how to set the focus to the other
process?
--
Thanks
Sharon