How we create clock program in C language

Answer 1

With only C/C++'s built-in facilities, and without using external graphical libraries, you probably should know 3 things:

1. How to draw simple lines using one of the famous line algorithms like DDA, or Bresenham's line algorithm, etc. for clock hands.
2. How to draw circle with a formal algorithm like Bresenham's circle algorithm or in its rough form, with less precision, using a custom conversion from Polar to Cartesian coordinate and get the respective pair of (x, y) for each minute-mark of the clock face/dial as

x = r * sin(current angle);
y = r * cos(current angle);

r is the radius of the clock face.
current angle is in the range of [0 to 360)

3. How to use a 2D matrix as a dot-matrix LED emulator and fill it with outcome of every stage of drawing.

For more details about how things work together as a unit, refer to my example, specifically AnalogC class (started from the line 402 and ended to line 587)

https://code.sololearn.com/cCzwjQ900N11/?ref=app

Answer 2

Thakare Sagar TS_Creation

Add a description to your questions.

Basically use a function to get the time.

Rendering/ drawing one not a simple task for C.

I could make one using Sdl2.

https://www.sololearn.com/discuss/498964/?ref=app

Answer 3

plz bro help me
plz ans in C language

i learn only C lang