disable-mask OpenVMS usage:mask_longword type: longword (unsigned) access: read only mechanism: by reference Bit mask indicating which control characters are not to be intercepted. The disable-mask argument is the address of an unsigned longword containing this bit mask. Each of the 32 bits corresponds to one of the 32 possible control characters. If a bit is set, the corresponding control character is no longer intercepted by the CLI. Currently, only bits 20 and 25, corresponding to Ctrl/T and Ctrl/Y, are recognized. The following mask is defined in symbol libraries supplied by HP to specify the value of disable-mask: Symbol Hex Value Function LIB$M_CLI_ %X'00100000' Disables Ctrl/T CTRLT LIB$M_CLI_ %X'02000000' Disables Ctrl/Y CTRLY If a set bit does not correspond to a character that the CLI can intercept, LIB$DISABLE_CTRL returns an error. old-mask OpenVMS usage:mask_longword type: longword (unsigned) access: write only mechanism: by reference Previous bit mask. The old-mask argument is the address of an unsigned longword into which LIB$DISABLE_CTRL writes the old bit mask. The old bit mask is of the same form as disable-mask and indicates those control characters that were previously enabled. It may therefore be given to LIB$ENABLE_CTRL to reinstate the previous condition.