+ <STRONG>Name</STRONG> <STRONG>Description</STRONG>
+ ------------------------------------------------------------------------
+ <STRONG>REQ_BEG_FIELD</STRONG> Move to beginning of field.
+ <STRONG>REQ_BEG_LINE</STRONG> Move to beginning of the line.
+ <STRONG>REQ_CLR_EOF</STRONG> Clear to end of field from cursor.
+ <STRONG>REQ_CLR_EOL</STRONG> Clear to end of line from cursor.
+ <STRONG>REQ_CLR_FIELD</STRONG> Clear the entire field.
+ <STRONG>REQ_DEL_CHAR</STRONG> Delete character at the cursor.
+ <STRONG>REQ_DEL_LINE</STRONG> Delete line at the cursor.
+ <STRONG>REQ_DEL_PREV</STRONG> Delete character before the cursor.
+ <STRONG>REQ_DEL_WORD</STRONG> Delete blank-delimited word at cursor.
+ <STRONG>REQ_DOWN_CHAR</STRONG> Move down in field.
+ <STRONG>REQ_DOWN_FIELD</STRONG> Move down to a field.
+ <STRONG>REQ_END_FIELD</STRONG> Move to the end of field.
+ <STRONG>REQ_END_LINE</STRONG> Move to the end of the line.
+ <STRONG>REQ_FIRST_FIELD</STRONG> Move to the first field.
+ <STRONG>REQ_FIRST_PAGE</STRONG> Move to the first page.
+ <STRONG>REQ_INS_CHAR</STRONG> Insert a blank at the cursor.
+ <STRONG>REQ_INS_LINE</STRONG> Insert a blank line at the cursor.
+ <STRONG>REQ_INS_MODE</STRONG> Enter insert mode.
+ <STRONG>REQ_LAST_FIELD</STRONG> Move to the last field.
+ <STRONG>REQ_LAST_PAGE</STRONG> Move to the last field.
+ <STRONG>REQ_LEFT_CHAR</STRONG> Move left in field.
+ <STRONG>REQ_LEFT_FIELD</STRONG> Move left to a field.
+ <STRONG>REQ_NEW_LINE</STRONG> Insert or overlay a new line.
+ <STRONG>REQ_NEXT_CHAR</STRONG> Move to the next char.
+
+ <STRONG>REQ_NEXT_CHOICE</STRONG> Display next field choice.
+ <STRONG>REQ_NEXT_FIELD</STRONG> Move to the next field.
+ <STRONG>REQ_NEXT_LINE</STRONG> Move to the next line.
+ <STRONG>REQ_NEXT_PAGE</STRONG> Move to the next page.
+ <STRONG>REQ_NEXT_PAGE</STRONG> Move to the next page.
+ <STRONG>REQ_NEXT_WORD</STRONG> Move to the next word.
+ <STRONG>REQ_OVL_MODE</STRONG> Enter overlay mode.
+ <STRONG>REQ_PREV_CHAR</STRONG> Move to the previous char.
+ <STRONG>REQ_PREV_CHOICE</STRONG> Display previous field choice.
+ <STRONG>REQ_PREV_FIELD</STRONG> Move to the previous field.
+ <STRONG>REQ_PREV_LINE</STRONG> Move to the previous line.
+ <STRONG>REQ_PREV_PAGE</STRONG> Move to the previous page.
+ <STRONG>REQ_PREV_WORD</STRONG> Move to the previous word.
+ <STRONG>REQ_RIGHT_CHAR</STRONG> Move right in field.
+ <STRONG>REQ_RIGHT_FIELD</STRONG> Move right to a field.
+ <STRONG>REQ_SCR_BCHAR</STRONG> Scroll field backward 1 character.
+ <STRONG>REQ_SCR_BHPAGE</STRONG> Scroll field backward 1/2 page.
+ <STRONG>REQ_SCR_BLINE</STRONG> Scroll field backward 1 line.
+ <STRONG>REQ_SCR_BPAGE</STRONG> Scroll field backward 1 page.
+ <STRONG>REQ_SCR_FCHAR</STRONG> Scroll field forward 1 character.
+ <STRONG>REQ_SCR_FHPAGE</STRONG> Scroll field forward 1/2 page.
+ <STRONG>REQ_SCR_FLINE</STRONG> Scroll field forward 1 line.
+ <STRONG>REQ_SCR_FPAGE</STRONG> Scroll field forward 1 page.
+ <STRONG>REQ_SCR_HBHALF</STRONG> Horizontal scroll field backward 1/2 line.
+ <STRONG>REQ_SCR_HBLINE</STRONG> Horizontal scroll field backward 1 line.
+ <STRONG>REQ_SCR_HFHALF</STRONG> Horizontal scroll field forward 1/2 line.
+ <STRONG>REQ_SCR_HFLINE</STRONG> Horizontal scroll field forward 1 line.
+ <STRONG>REQ_SFIRST_FIELD</STRONG> Move to the sorted first field.
+ <STRONG>REQ_SLAST_FIELD</STRONG> Move to the sorted last field.
+ <STRONG>REQ_SNEXT_FIELD</STRONG> Move to the sorted next field.
+ <STRONG>REQ_SPREV_FIELD</STRONG> Move to the sorted previous field.
+ <STRONG>REQ_UP_CHAR</STRONG> Move up in field.
+ <STRONG>REQ_UP_FIELD</STRONG> Move up to a field.
+ <STRONG>REQ_VALIDATION</STRONG> Validate field.
+
+ If the second argument is a printable character, the driver places it
+ in the current position in the current field. If it is one of the
+ forms requests listed above, that request is executed.
+
+
+</PRE><H3><a name="h3-Field-Validation">Field Validation</a></H3><PRE>
+ The form library makes updates to the window associated with form
+ fields rather than directly to the field buffers.
+
+ The form driver provides low-level control over updates to the form
+ fields. The form driver also provides for validating modified fields
+ to ensure that the contents meet whatever constraints an application
+ may attach using <STRONG>set_field_type</STRONG>.
+
+ You can validate a field without making any changes to it using
+ <STRONG>REQ_VALIDATION</STRONG>. The form driver also validates a field in these cases:
+
+ <STRONG>o</STRONG> a call to <STRONG>set_current_field</STRONG> attempts to move to a different field.
+
+ <STRONG>o</STRONG> a call to <STRONG>set_current_page</STRONG> attempts to move to a different page of
+ the form.
+
+ <STRONG>o</STRONG> a request attempts to move to a different field.
+
+ <STRONG>o</STRONG> a request attempts to move to a different page of the form.
+
+ In each case, the move fails if the field is invalid.
+
+ If the modified field is valid, the form driver copies the modified
+ data from the window associated with the field to the field buffer.
+
+
+</PRE><H3><a name="h3-Mouse-Handling">Mouse Handling</a></H3><PRE>
+ If the second argument is the KEY_MOUSE special key, the associated
+ mouse event is translated into one of the above pre-defined requests.
+ Currently only clicks in the user window (e.g., inside the form display
+ area or the decoration window) are handled.