The Ancient Chinese invented paper and money. Money was invented by the first king of China and paper was invented by a man in China by bamboo.
Example C Program to Catch a Signal. Most of the Linux users use the key combination Ctr+C to terminate processes in Linux. Have you ever thought of what goes behind this. Well, whenever ctrl+c is pressed, a signal SIGINT is sent to the process. The default action of this signal is to terminate the process. But this signal can also be handled.
A control can send a WM_COMMAND message to the dialog box procedure when the user carries out an action in the control. These messages, called notification messages, inform the procedure of user input and permit it to carry out appropriate responses.