Calls requiring STA threads don't work

[rekna1]

I have a script that need to access the clipboard. After compiling with lpless when I try to run executable it complains that to access clipboard it need STAthread. When I add this attribute to the linqpad script I get an error from compiler that it finds multiple entry points main and I need to specify main entry point. Any idea ?

[atifaziz]

Do you have a minimal LINQPad script that you can share (even if via LINQPad's Instant Share feature) along with steps that can help to reproduce the problem?

[rekna1]

Uses System.Windows.Clipboard

void Main()
{
	var text = Clipboard.GetText();
	Console.WriteLine(text);

}

The above compiles but gives the error on running:
Current thread must be set to single thread apartment (STA) mode before OLE calls can be made.

This was the solution I used before:

[STAThread]
static void Main()
{
	var text = Clipboard.GetText();
	Console.WriteLine(text);

}

But compiling gives

 Member 'UserQuery.Main()' cannot be accessed with an instance reference; qualify it with a type name instead
    testrun.cs(24,16): error CS0017: Program has more than one entry point defined. Compile with /main to specify the type that contains the entry point.

[atifaziz]

@rekna1 Thanks for sharing that example. I managed the reproduce the issue.

Meanwhile, a workaround would be to explicitly configure a thread for STA and run your code under that, like this:

void Run()
{
    var text = Clipboard.GetText();
    Console.WriteLine(text);
}

void Main()
{
    var t = new Thread(Run);
    t.SetApartmentState(ApartmentState.STA);
    t.Start();
    t.Join();
}

I've also shared the above query that you can download and try in LINQPad as well as run with LINQPadless.

[rekna1]

Oké, finally had a chance to try your workaround and that works great !

[atifaziz]

Oké, finally had a chance to try your workaround and that works great !

Good to know and thanks for taking the time to drop in a line to let me know.