11. A method for controlling an application based on a handwriting input in a first terminal, the method comprising: receiving a message from a second terminal while displaying an application screen on a touch screen display of the first terminal; displaying a notification indicating the message receipt on the touch screen display of the first terminal while displaying a portion of the application screen; if the notification is displayed on the touch screen display, activating a handwriting recognition module to recognize a handwriting input in an area of the touch screen display associated with the displayed notification receiving the handwriting input on the touch screen display of the first terminal without launching a message application; determining a symbol corresponding to the handwriting input; associating the symbol with a function of the message application; and transmitting the associated symbol to the second terminal through the message application.
11. A method for controlling an application based on a handwriting input in a first terminal, the method comprising: receiving a message from a second terminal while displaying an application screen on a touch screen display of the first terminal; displaying a notification indicating the message receipt on the touch screen display of the first terminal while displaying a portion of the application screen; if the notification is displayed on the touch screen display, activating a handwriting recognition module to recognize a handwriting input in an area of the touch screen display associated with the displayed notification receiving the handwriting input on the touch screen display of the first terminal without launching a message application; determining a symbol corresponding to the handwriting input; associating the symbol with a function of the message application; and transmitting the associated symbol to the second terminal through the message application. 17. The method of claim 11 , further comprising: recognizing an activation of a button comprised in the notification; and identifying whether a handwriting input action exists in registration information about the button.