#includeThis example creates a BString object and locks the buffer using the LockBuffer method. The program then modifies the buffer using the sprintf function and unlocks the buffer using the UnlockBuffer method. Finally, the program prints the modified string. The BString class is part of the Be Operating System's Support Kit library.#include int main() { BString myString("Hello world!"); char* buffer = myString.LockBuffer(0); // locks buffer for modification sprintf(buffer, "Howdy!"); // modify buffer myString.UnlockBuffer(); // unlocks buffer printf("My string: %s\n", myString.String()); return 0; }