Re-enable console for win32 apps, or hide console for console apps.

show-hide-console.c

#include <stdio.h>
#include <windows.h>

char SHOW_FLAG = 0;
void console_show() {
	AllocConsole();
	freopen("CONIN$", "r", stdin);
	freopen("CONOUT$", "w", stdout);
	freopen("CONOUT$", "w", stderr);
	
	SHOW_FLAG = 1;
}

void console_hide() {
	HWND window;
	AllocConsole();
	window = FindWindow("ConsoleWindowClass", NULL);
	if (window) ShowWindow(window, 0); 		
}

/*///////////////////////////////////
	
		Testing:
		
///////////////////////////////////*/

int main() {
	console_show();	
	
	printf("foo!\n");
	system("pause");
}