Header File 

conio.h  

Category 

Console I/O Routines 

Prototype 

void textmode(int newmode); 

Description 

Puts screen in text mode.

You can give the text mode (the argument newmode) by using a symbolic constant from the enumeration type text_modes (defined in conio.h). 

The most commonly used text_modes type constants and the modes they specify are given in the following table. Some additional values are defined in conio.h.

When textmode is called, the current window is reset to the entire screen, and the current text attributes are reset to normal, corresponding to a call to normvideo. 

Specifying LASTMODE to textmode causes the most recently selected text mode to be reselected. 

textmode should be used only when the screen or window is in text mode (presumably to change to a different text mode). This is the only context in which textmode should be used. When the screen is in graphics mode, use restorecrtmode instead to escape temporarily to text mode. 

Return Value 

None. 

Example  

#include <conio.h>
int main(void)
{
   textmode(BW40);
   cprintf("ABC");
   getch();
   textmode(C40);
   cprintf("ABC");
   getch();
   textmode(BW80);
   cprintf("ABC");
   getch();
   textmode(C80);
   cprintf("ABC");
   getch();
   textmode(MONO);
   cprintf("ABC");
   getch();
   return 0;
}

Portability