C Excellent pro

C Program to check if mouse support is available or not

#include

#incude

#include

int initmouse();

union REGS i, o;

int main()

{

   int flag;

   flag = initmouse();

   if (flag == 0)

   {

      printf("Mouse support not available.");

   }

    else

    {

      printf("Mouse support available.");

    }

    return 0;

}

 int initmouse()

 {

   i.x.ax = 0;

   int86(0X33, &i, &o);

   return (o.x.ax);

}

Output

Mouse support available.

C Program to Hide Mouse Pointer

#include

#include

#include

void showseptr();

void hidemouseptr();

union REGS I,o;

int main()

{

int count=1, gDriver=DETECT,gmode;

initgrphy(&gDriver,&gMode, "c\\:tc\\bgi");

i.x.ax=0;

int86(0x33,&I,&o);

if(o.x.ax==0)

{

printf("\n Mouse support is unavailable!! ");

}

else

{

showmouseptr();

while(count<=10)

{

getch();

count++;

if(count%2==0)

hidemouseptr();

else

chowmouseptr();

}

}

getch();

return 0;

}

void showmouseptr()

{

i.x.ax=1;

int86(0x33,&I,&o);

}

void hidemouseptr()

{

i.x.ax=2;

int 86(0x33,&I,&o);

}

Temperature Conversion from Celsius to Fahrenheit

  

   #include

   #include

   int main()

   {

   float fahrenheit, celsius;

   int lower, upper, step;

   lower = 0;

   upper = 200;

   step = 20;

   printf("  C\tF");

   printf("\n------------");

   celsius = lower;

   while (celsius <= upper)

     {

      fahrenheit = (9.0 / 5.0) * celsius + 32.0;

      printf("\n%3.0f %6.1f", celsius, fahrenheit);

      celsius = celsius + step;

   }

    return 0;

}

Output

          C       F

------------

  0      32.0

20      68.0

40      104.0

60      140.0

80      176.0

100     212.0

120     248.0

140    284.0

160    320.0

180    356.0

200    392.0

C Program for Changing Backslash Character Arguments

#include

#include

int main(int argc,char*argv[])

{

printf("\n Hello, World\a");

printf("\n Hello, World\b");

printf("\n Hello, World\c");

printf("\n Hello, World\d");

printf("\n Hello, World\e");

getch();

}

Output

Hello , World

Hello , World

Hello , Worldc

Hello , Worldd

Hello , World

C Program for Temperature Conversion from Fahrenheit to Celsius

#include

#include

int main()

{

float fahrenheit,celsius;

int lower,upper,step;

lower =0;

upper=200;

step=20;

printf("F\tC");

printf("\n============================”);

fahrenheit=lower;

while(Fahrenheit<=upper)

{

celsius=(5.0/9.0)*(fahrenhebit-32.0);

printf("\n %3 of %6. 1f", Fahrenheit,Celsius);

fahrenheit=Fahrenheit+step;

}

return 0;

}

Output

F                 C

       0                                       -17.8      
      20                   -6.7

40                   4.4

60                   15.6

80                   26.7

100                 37.8

120                 48.9

140                 60.0

160                 71.1

180                 82.2

200                 93.3