Begins internal processing of text input.
This will fill the text buffer which can be retrieved and/or cleared with TextInput_GetBuffer.
Note: The internal text buffer will continue to be filled with characters every time a key is pressed until TextInput_End is called.
Ends internal processing of text input and clears the text buffer.
    Return Type:
        real
    Returns true if text input processing is active, otherwise returns false.
    Arguments:
        1) bool: bClear
    Return Type:
        string
    Returns a string with a copy of the text buffer.
If bClear is true, the buffer will be cleared.
    Arguments:
        1) real: x
        2) real: y
    Sets the position of the Windows IME box
Note: No consistency is guaranteed with this function as it relies entirely on Windows functions.
    Return Type:
        real
    Gets the x position of the Windows IME box
Note: No consistency is guaranteed with this function as it relies entirely on Windows functions.
    Return Type:
        real
    Gets the y position of the Windows IME box
Note: No consistency is guaranteed with this function as it relies entirely on Windows functions.