How to print output message in command prompt using C++ in win32 application (in same command promp window)?

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I have a win32 project, I am calling my exe using following command in command prompt.

C++

"MyApp.exe /Print"

If I execute above in command prompt, I want to display "Welcome to MyApp" in the same command prompt window.

I am able to get the given command line using CWinApp, but I cannot able to display my message in command prompt. How to do this?

What I have tried:

I tried using "WriteConsole" like below, it's not working.

C++

LPCWSTR lpBuff = L"Welcome to MyApp";
DWORD dwSize = 0;
AttachConsole(ATTACH_PARENT_PROCESS);
WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), lpBuff, lstrlen(lpBuff), &dwSize, NULL);

Is there any other way to do this?

Posted 14-Jan-20 1:30am

Piraisudan

Updated 14-Jan-20 6:18am

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3 solutions

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W∴ Balboos, *GHB* · Answer 1 · 2020-01-14T01:50:00

Solution 2

If cout fails you, take the extreme route. Do a stream write to stderr.

I haven't done the above since my DOS days but the typical rule was that both stdin and stdout (and thus, possibly cin and cout, for you) can be redirected but stderr could not.

Posted 14-Jan-20 1:50am

W∴ Balboos, GHB

Comments

Rick York 14-Jan-20 10:46am

It actually can be redirected by using "2>" (in windows). It's probably best not to tell anyone that though.

_Asif_ · Answer 2 · 2020-01-14T01:54:00

Solution 3

It's easy and a good example can be found here

Visual C++ Enable Console - Stack Overflow[^]

Do a little search and you will find plenty of examples more.

Posted 14-Jan-20 1:54am

_Asif_

Richard MacCutchan · Answer 3 · 2020-01-14T06:19:00

Solution 4

I just tried your code and it works fine. You need to provide more details of your exact code and environment.

Posted 14-Jan-20 6:19am

Richard MacCutchan