Hello Al,
After opening up the documentation for the function, the V_FlAGS parameter (filetype) is a integer or constant that specifies the type of file loaded, as described in Settings.
In the Settings section, the two valid values for filetype are:
0 = (Default) RTF. The RichTextBox control saves its contents as an .rtf file.
1 = Text. The RichTextBox control saves its contents as a text file.
Hope that helps.
Wendy L
LabWindows/CVI Developer Newsletter