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Can C++Builder Form Application wait until termination on command prompt ?

Nobuo Miwa
Nobuo Miwa asked
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Last Modified: 2014-08-06
Hello Experts,

C++Builder XE5, Windows 7 64bit

When I run C++Builder Form Application on command prompt, it returns immediately without waiting its termination.
I want to show some messages with fprintf(stderr or stdout) in my form application, but I don't know how to setup my form application.

Any hints welcome,
Nobuo Miwa
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Top Expert 2013

Commented:
You can "wait" for the program completion in the batch files using one of the following methods:
START /wait notepad.exe 

Open in new window

or
CALL notepad.exe 

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Both of these commands will wait for the program to complete before proceeding to the next line.
If you call the program on its own, like this:
notepad.exe

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The next line in the batch file will be executed immediately.
(NB: replace notepad.exe with the name and path of your program)
jkr
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Top Expert 2012

Commented:
If you are creating a Windows GUI application (which I presume), there simply is no stdout or stderr. What you can do to display diagnostic information is using 'OutputDebugString()' (http://msdn.microsoft.com/en-us/library/windows/desktop/aa363362(v=vs.85).aspx) and watch the output e.g. using "DebugView" (http://msdn.microsoft.com/en-us/vstudio/bb896647)

Alternatively you can of course wite your diagnostic output to a file using 'fprintf()', but I prefer the lhat method.
Nobuo MiwaSecurity Engineer

Author

Commented:
Thanks quick advice,

I tried both, but that could not print string from printf("hello\n").
I want to print it in command prompt.

Regards,
Nobuo Miwa
jkr
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Top Expert 2012
Commented:
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Nobuo MiwaSecurity Engineer

Author

Commented:
Thank you for advice.
You let me know unknown things.
I will find out another way to return result of my app without printf().

Thank you again.

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