How to get ride of console box of a GUI program compile by MinGW + Code::Block

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When I test compile a simple Win32 GUI program in MinGW+MSys with command line and run it:

$ g++ main.cpp -o app -std=c++0x

$ ./app

only a dialog box shows. But put this program into Code::Block IDE and compile it, it aways plus a black console box with the dialog. Add -mwindows in link options no effect.


#include <windows.h>
    MessageBox(0,"Hello, Windows","MinGW Test Program",MB_OK);
    return 0;
2012-04-04 01:24
by bo0k
Have you tried the options the author of this blog post used? Under Build Options > Other Options they have '-Wl,--subsystem,windows ' - - charlemagne 2012-04-04 01:38
'-Wl,--subsystem,windows' dont work in codeblock IDE, i add it into both compiler and linker options still show me console box - bo0k 2012-04-04 01:51
@bo0k, I know it's been a long time, but if you've just forgotten about this, I've just asked if there was any way to do this without a project, since the linker options I tried were not working, and the "problem" with -Wl,--subsystem,windows is that it only doesn't work inside the IDE. If you run it from explorer, it will not have a console window. I just thought you'd like to know - chris 2012-12-20 14:57


Put it in a project, and in the project settings there's an option to not have a console window.

If you can't be bothered to have it in a project, a call to ShowWindow (GetConsoleWindow(), SW_HIDE); will make it flash on the screen and then disappear. Note that you must #define _WIN32_WINNT as 0x0500 or greater before including windows.h to have access to GetConsoleWindow(). I'll come back in a bit with a specific location to disable it.

//hide console window at start
#define _WIN32_WINNT 0x0501 //this is for XP
#include <windows.h>

int main()
    ShowWindow (GetConsoleWindow(), SW_HIDE);
    //rest of program here

EDIT: Found it, here's how to not have a console window:

  1. Click Project on the CodeBlocks menu.
  2. Click Properties.
  3. Click the second tab, Build Targets.
  4. On the right, where it says Type: Console application, change it to GUI application.
  5. Rebuild the project.
2012-04-04 01:38
by chris
Which option in codeblock? It OK when I am using command line. I think codeblock should add some compile or link options to make the console appear, but I dont konw how to find the command codeblock running - bo0k 2012-04-04 01:48
Thank you, I think thats the right way - bo0k 2012-04-04 01:54
I'm not sure about any of the C::B-specific command line build options. I know this way works with the GUI though - chris 2012-04-04 01:56
Note, I had to "clean"/rebuild before this took effect for m - Steve Byrne 2017-11-16 07:56