Within your program, you can choose from among multiple help files for display. By calling mf_clr() and then mf_rd(), you can change the contents of a memory file being used for display. You can also read text into a memory file by repeatedly calling mf_rowrpl() or mf_rowins() to build the memory file contents in code. Neither method is recommended because of the memory fragmentation associated with each.
Alternately, you can keep several memory files in memory and choose the appropriate one to be displayed in the window.
