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# TE_unlock_keyboard

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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.

## Return Values

This function returns 0 if it succeeds, and a negative error code if it fails. It also sets the global variable TE_errno.

## Parameterization

You cannot use standard parameterization for any arguments in this function.

## Example

The following example checks the terminal for an application error message. If it finds one it will unlock the keyboard.

Copy code

    int rc;
        rc = TE_find_text ("application error", 0, 0, -1, -1, NULL, NULL, NULL);
        if (rc == 0)
            TE_unlock_keyboard();

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