Technically the programs need to check for the predefined key combinations.

Ctrl-C, for example, halts the execution of a console program when there's a console. When there is no console, such as in Windows Notepad, the key combination functions as an accelerator for the Copy function where applicable. Ctrl-Break does nothing outside of the console unless it is defined by the programmer. Galleon is using SDL to emulate everything. As a result, key presses such as Ctrl-C, Ctrl-Break, etc. don't work the same by default.