# 5.3. A Kimeneti ablak

The Output window is separated as well into a messages window, a stdin/stdout window and a stderr window for the following necessities:

- messages window: displays all output of the Compiler . Clicking on error messages will change the edit widget to set the cursor to the line the Compiler found an error.

- stdout window: display for terminal based applications that send messages to the standard output of the computer. Note that Terminal applications are now started in an external console window.

- stderr window: displays all the error messages your program produces. This is useful for testing purposes. The Output window is programmed to show up each time an external process is called, such as make or a terminal application.