- If the second argument is a printable ASCII character, the
- code appends it to the pattern buffer and attempts to move
- to the next item matching the new pattern. If there is no
- such match, <STRONG>menu_driver</STRONG> returns <STRONG>E_NO_MATCH</STRONG> and deletes the
- appended character from the buffer.
-
- If the second argument is one of the above pre-defined
- requests, the corresponding action is performed.
-
- 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 menu display area or the decora-
- tion window) are handled. If you click above the display
- region of the menu, a REQ_SCR_ULINE is generated, if you
- doubleclick a REQ_SCR_UPAGE is generated and if you
- tripleclick a REQ_FIRST_ITEM is generated. If you click
- below the display region of the menu, a REQ_SCR_DLINE is
- generated, if you doubleclick a REQ_SCR_DPAGE is generated
- and if you tripleclick a REQ_LAST_ITEM is generated. If
- you click at an item inside the display area of the menu,
- the menu cursor is positioned to that item. If you double-
- click at an item a REQ_TOGGLE_ITEM is generated and
- <STRONG>E_UNKNOWN_COMMAND</STRONG> is returned. This return value makes
- sense, because a double click usually means that an item-
- specific action should be returned. It's exactly the pur-
- pose of this return value to signal that an application
- specific command should be executed. If a translation into
- a request was done, <STRONG>menu_driver</STRONG> returns the result of this
- request. If you clicked outside the user window or the
- mouse event couldn't be translated into a menu request an
- <STRONG>E_REQUEST_DENIED</STRONG> is returned.
-
- If the second argument is neither printable ASCII nor one
- of the above pre-defined menu requests or KEY_MOUSE, the
- drive assumes it is an application-specific command and
- returns <STRONG>E_UNKNOWN_COMMAND</STRONG>. Application-defined commands
- should be defined relative to <STRONG>MAX_COMMAND</STRONG>, the maximum
+ If the second argument is a printable character, the code appends it to
+ the pattern buffer and attempts to move to the next item matching the
+ new pattern. If there is no such match, <STRONG>menu_driver</STRONG> returns <STRONG>E_NO_MATCH</STRONG>
+ and deletes the appended character from the buffer.
+
+ If the second argument is one of the above pre-defined requests, the
+ corresponding action is performed.
+
+
+</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 menu display
+ area or the decoration window) are handled.
+
+ If you click above the display region of the menu:
+
+ <STRONG>o</STRONG> a REQ_SCR_ULINE is generated for a single click,
+
+ <STRONG>o</STRONG> a REQ_SCR_UPAGE is generated for a double-click and
+
+ <STRONG>o</STRONG> a REQ_FIRST_ITEM is generated for a triple-click.
+
+ If you click below the display region of the menu:
+
+ <STRONG>o</STRONG> a REQ_SCR_DLINE is generated for a single click,
+
+ <STRONG>o</STRONG> a REQ_SCR_DPAGE is generated for a double-click and
+
+ <STRONG>o</STRONG> a REQ_LAST_ITEM is generated for a triple-click.
+
+ If you click at an item inside the display area of the menu:
+
+ <STRONG>o</STRONG> the menu cursor is positioned to that item.
+
+ <STRONG>o</STRONG> If you double-click an item a REQ_TOGGLE_ITEM is generated and
+ <STRONG>E_UNKNOWN_COMMAND</STRONG> is returned. This return value makes sense,
+ because a double click usually means that an item-specific action
+ should be returned. It is exactly the purpose of this return value
+ to signal that an application specific command should be executed.
+
+ <STRONG>o</STRONG> If a translation into a request was done, <STRONG>menu_driver</STRONG> returns the
+ result of this request.
+
+ If you clicked outside the user window or the mouse event could not be
+ translated into a menu request an <STRONG>E_REQUEST_DENIED</STRONG> is returned.
+
+
+</PRE><H3><a name="h3-APPLICATION-DEFINED-COMMANDS">APPLICATION-DEFINED COMMANDS</a></H3><PRE>
+ If the second argument is neither printable nor one of the above pre-
+ defined menu requests or KEY_MOUSE, the drive assumes it is an applica-
+ tion-specific command and returns <STRONG>E_UNKNOWN_COMMAND</STRONG>. Application-
+ defined commands should be defined relative to <STRONG>MAX_COMMAND</STRONG>, the maximum