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Portable Network Graphic  |  1995-08-05  |  74KB  |  816x1056  |  8-bit (256 colors)
OCR: APPENDIXA C OME DECL ARATIONS OF THETFILTER.H HEADER FILE Here are some messages that FTE will send to the function via the PB: msgOpenFilter. do. any setup you might need to do, memory etc. msgInitOptions .get ready for doing an options dialog msgDialogEvent. ........ handle the options msgCl loseOptions .cleanup after doing your options msgFilterData ............ .do. your thing, filter that stream baby! msac loseFilter ........... .u.ndo anything done in the setup Here are some return codes for the filtering function: ftOK .No error. ftAbort User wants abort clean up processing and get out ftParmError parameter error in function call ftParsetablnvalid ....... the indicated parse table was invalid ftPipelnvalid .............. .the indicated pipe identifier is not valid ftStreamInvalid .. ...