Draw a pixel on a condition?

Question

C++ / C#

The textbox has a string consisting of 1's and 0's. The code should read the string. If 1, then a black pixel is drawn in the picturebox, otherwise a white one. How to do it?

Answer 1

You cycle through the string (as in an array). If the next character is equal to 1, then the next pixel is filled with black. Otherwise, white. What part is causing trouble? Where is your code?