Input method keymap management

The input method provides several subroutines to map key events to a string. The mapping is maintained in an imkeymap file located in the LOCPATH directory.

The subroutines used for mapping are as follows:

Subroutine	Description
IMInitializeKeymap	Initializes the imkeymap associated with a specified language.
IMFreeKeymap	Frees resources allocated by the IMInitializeKeymap subroutine.
IMAIXMapping	Translates a pair of key-symbol and state parameters to a string and returns a pointer to that string.
IMSimpleMapping	Translates a pair of key-symbol and state parameters to a string and returns a pointer to that string.