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|Example: TE_unlock_keyboard||Send Text Functions|
Unlocks the keyboard of a mainframe terminal.
int TE_unlock_keyboard( void );
Use TE_unlock_keyboard to unlock a keyboard of a mainframe terminal after it became locked as a result of an error message. TE_unlock_keyboard is equivalent to pressing the F3 key.
This function returns 0 if it succeeds, and a negative error code if it fails. It also sets the global variable TE_errno.
You cannot use standard parameterization for any arguments in this function.