+#define WRITE_KEYSTROKE 0x04
+#define DISABLE_INPUT 0x05
+#define ENABLE_INPUT 0x06
+
+#define COPY_STRING 0x01
+
+#define READ_OIA_GROUP 0x02
+\f
+/*
+ * For each service, we define the assoicated parameter blocks.
+ */
+
+/*
+ * Supervisor Services
+ */
+
+typedef struct {
+ char gate_name[8];
+} NameResolveParms;
+
+
+/*
+ * Session Information Services
+ */
+
+typedef struct {
+ char
+ short_name,
+ type,
+ session_id,
+ reserved,
+ long_name[8];
+} NameArrayElement;
+
+typedef struct {
+ unsigned char
+ length,
+ number_matching_session;
+ NameArrayElement
+ name_array_element; /* Variable number */
+} NameArray;
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ option_code,
+ data_code;
+ NameArray far
+ *name_array;
+ char
+ long_name[8];
+} QuerySessionIdParms;
+
+#define ID_OPTION_BY_NAME 0x01 /* By short (or long) name */
+#define ID_OPTION_ALL 0x00 /* All (of specified type */
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved,
+ session_type,
+ session_characteristics,
+ rows,
+ columns;
+ char far
+ *presentation_space;
+} QuerySessionParametersParms;
+
+#define TYPE_WSCTL 0x01 /* Work Station Control */
+#define TYPE_DFT 0x02 /* DFT Host Session */
+#define TYPE_CUT 0x03 /* CUT Host Session */
+#define TYPE_NOTEPAD 0x04 /* Notepad Session */
+#define TYPE_PC 0x05 /* Personal Computer Session */
+
+#define CHARACTERISTIC_EAB 0x80 /* Extended Attribute Buffer */
+#define CHARACTERISTIC_PSS 0x40 /* Program Symbols Supported */
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ cursor_type,
+ row_address, /* from 0 */
+ column_address; /* from 0 */
+} QuerySessionCursorParms;
+
+#define CURSOR_INHIBITED_AUTOSCROLL 0x10
+#define CURSOR_INHIBITED 0x04
+#define CURSOR_BLINKING 0x02
+#define CURSOR_BOX 0x01
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved;
+ short
+ event_queue_id,
+ input_queue_id;
+ char
+ intercept_options,
+ first_connection_identifier;
+} ConnectToKeyboardParms;
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved;
+ short
+ connectors_task_id;
+} DisconnectFromKeyboardParms;
+
+typedef struct {
+ unsigned char
+ scancode,
+ shift_state;
+} KeystrokeEntry;
+
+typedef struct {
+ short
+ length; /* Length (in bytes) of list */
+ KeystrokeEntry keystrokes; /* Variable size */
+} KeystrokeList;
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved;
+ short
+ connectors_task_id;
+ char
+ options,
+ number_of_keys_sent;
+ union {
+ KeystrokeEntry
+ keystroke_entry;
+ KeystrokeList far
+ *keystroke_list;
+ } keystroke_specifier;
+} WriteKeystrokeParms;
+
+#define OPTION_SINGLE_KEYSTROKE 0x20
+#define OPTION_MULTIPLE_KEYSTROKES 0x30
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved;
+ short
+ connectors_task_id;
+} DisableInputParms;
+
+typedef DisableInputParms EnableInputParms;
+
+typedef struct {
+ char
+ session_id,
+ reserved;
+ char far
+ *buffer;
+ char
+ characteristics,
+ session_type;
+ short
+ begin; /* Offset within buffer */
+} BufferDescriptor;
+
+typedef struct {
+ char
+ rc,
+ function_id;
+ BufferDescriptor
+ source;
+ short
+ source_end; /* Offset within source buffer */
+ BufferDescriptor
+ target;
+ char
+ copy_mode,
+ reserved;
+} CopyStringParms;
+
+#define COPY_MODE_7_COLOR 0x80 /* Else 4 color mode */
+#define COPY_MODE_FIELD_ATTRIBUTES 0x40 /* Else don't copy attributes */
+
+typedef struct {
+ char
+ rc,
+ function_id,
+ session_id,
+ reserved;
+ char far
+ *oia_buffer;
+ char
+ oia_group_number;
+} ReadOiaGroupParms;
+
+/* If the user wants all groups, we return API_OIA_BYTES_ALL_GROUPS bytes */
+#define API_OIA_ALL_GROUPS '\377'
+#define API_OIA_BYTES_ALL_GROUPS 22 /* 22 bytes of data */
+
+/* API_OIA_INPUT_INHIBITED is special. It returns more than on byte of data */
+#define API_OIA_INPUT_INHIBITED 8
+
+#define API_OIA_LAST_LEGAL_GROUP 18 /* Highest legal number */
+
+
+
+#if defined(MSDOS)
+
+#if !defined(FP_SEG)
+#include <dos.h>
+#endif /* !defined(FP_SEG) */
+
+#else /* defined(MSDOS) */
+
+/*
+ * These definitions are here to provide the descriptions of
+ * some registers which are, normally, defined in <dos.h> on
+ * a dos system.
+ */
+
+#define FP_SEG(x) ((unsigned int)(((unsigned long)(x))>>16))
+#define FP_OFF(y) ((unsigned int)(((unsigned long)(y))&0xFFFF))
+
+/*
+ * Undo the preceeding.
+ */
+
+#define SEG_OFF_BACK(x,y) (((x)<<16)|(y))
+
+/*
+ * Now, it is somewhat of a pain, but we need to keep
+ * 8086 conventions about which of the "highlow"'s map
+ * into which of the "words".
+ */
+
+struct highlow {
+ unsigned char
+#if defined(vax) || defined(ns32000)
+ al,
+ ah,
+ bl,
+ bh,
+ cl,
+ ch,
+ dl,
+ dh;
+#endif /* defined(vax) || defined(ns32000) */
+#if defined(sun) || defined(tahoe) || defined(ibm032) || defined(pyr)
+ ah,
+ al,
+ bh,
+ bl,
+ ch,
+ cl,
+ dh,
+ dl;
+#endif /* defined(sun) || defined(tahoe) || defined(ibm032) || defined(pyr) */
+};
+
+struct words {
+ unsigned short
+ ax,
+ bx,
+ cx,
+ dx;
+ unsigned short
+ si,
+ di;
+};