GADGET Core Code Interface

F&M will call the following routine, which must be provided by the core code, to notify core-code of each gadget with CORE control type:

CORGDT ( int GADGET, int WMID, int GTYPE, int LSTR, string GDTNAME )

Where:

• GADGET is the F&M handle for the gadget element.

• WMID the DRUID driver handle for the gadget. This will allow the core-code to provide its own callback for the gadget.

• GTYPE is the gadget type as defined above.

• GDTNAME an application module unique gadget name string of length LSTR.

The element GADGET is owned by an F&M FORM element, so its owner (in this case the form) element can be obtained from:

FQUOWN( int GDTELT, int FORM, int OWNER ).

The following F&M routines may be useful for core code management gadgets:

Query immediate owner and owning form of given element ELT (gadget, menu, menufield etc.):

FQUOWN ( int ELT, int FORM, int OWNER )

Where:

• FORM and OWNER are returned arguments.

• FORM/GADGET/MENU/MENUFIELD/ELT/OWNER is the F&M handle for an element.

• IERR is a PML error token, where 0 means no error.