How to use the FreeConole to close a console without closing the form?

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How can I use the FreeConsole() to close a console? Currently I have done all coding related to directing the output in a button click event. How do I call this to ensure that my form doesn't close when console closes? Please advice. Done in C#.

Posted 5-Apr-14 13:09pm

mayooran99

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PIEBALDconsult 5-Apr-14 21:23pm

Sooo... where's the code?

mayooran99 5-Apr-14 22:43pm

[DllImport("kernel32.dll",
EntryPoint = "GetStdHandle",
SetLastError = true,
CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall)]
private static extern IntPtr GetStdHandle(int nStdHandle);
[DllImport("kernel32.dll",
EntryPoint = "AllocConsole",
SetLastError = true,
CharSet = CharSet.Auto,
CallingConvention = CallingConvention.StdCall)]
private static extern int AllocConsole();
private const int STD_OUTPUT_HANDLE = -11;
private const int MY_CODE_PAGE = 437;
AllocConsole();
IntPtr stdHandle = GetStdHandle(STD_OUTPUT_HANDLE);
SafeFileHandle safeFileHandle = new SafeFileHandle(stdHandle, true);
FileStream fileStream = new FileStream(safeFileHandle, FileAccess.Write);
Encoding encoding = System.Text.Encoding.GetEncoding(MY_CODE_PAGE);
StreamWriter standardOutput = new StreamWriter(fileStream, encoding);
standardOutput.AutoFlush = true;
Console.SetOut(standardOutput);

2 solutions

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Michael Haephrati · Answer 1 · 2024-01-06T07:18:00

Solution 1

One option is to post a WM_QUIT message

PostMessage(consoleWindow, WM_CLOSE, 0, 0);

Posted 6-Jan-24 7:18am

Michael Haephrati

Michael Haephrati · Answer 2 · 2024-01-10T23:14:00

Solution 2

There is another way I found that works. You just hide the console. Next time, you don't even need to 'unhide' it, but just to open it as usual.

HWND console = GetConsoleWindow();
ShowWindow(console,1);

Posted 10-Jan-24 23:14pm

Michael Haephrati

Comments

Richard MacCutchan 11-Jan-24 6:22am

You do realise this question is almost 10 years old.

0x01AA 11-Jan-24 10:48am

Answering old questions[^] ;)

Michael Haephrati 11-Jan-24 7:36am

As I explain many times in the past, there is nothing wrong with that. I will keep on answering any question that is relevant today, and this one is. I stumbled upon the question while looking for the same solution myself and that was yesterday.

0x01AA 11-Jan-24 12:51pm

Which is very ok according to Answering old questions[^] ;)
Therefore my small +5 as a small compensation to the down votes.

Michael Haephrati 11-Jan-24 15:17pm

Yes, as I see it, if a topic became irrelevant, even if the question is relatively new, I won't post an answer, but if the question is still relevant today, I will. Thanks 0x01AA.