Resource +member initialisation overview

diff -r 000000000000 -r 89d6a7a84779 Symbian3/SDK/Source/GUID-0D619063-F2DB-53FC-A5E6-BC09AD915FA4.dita --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Symbian3/SDK/Source/GUID-0D619063-F2DB-53FC-A5E6-BC09AD915FA4.dita Thu Jan 21 18:18:20 2010 +0000 @@ -0,0 +1,56 @@ + + + + + +Resource +member initialisation overview +

The resource initialiser has different forms depending on whether a single, +simple, member is being initialised, or whether a struct or an array is being +initialised:

+<resource-initialiser> +resource-initialiser ::= + <member-name> [ (<length-limit>) ] = <initialiser><initialiser> +initialiser ::= + <simple-initialiser> | <struct-initialiser> | <array-initialiser> +

Resource members may be initialised by default (in the struct definition) +or explicitly initialised (in the resource definition).

In general,

If a member is initialised +in a RESOURCE statement, then that is its value.
If a member is initialised +in a STRUCT statement, then that is its value for all resources +which do not explicitly initialise it.
If a member is neither initialised +in a RESOURCE statement nor a STRUCT statement, +then: BYTE, WORD and DOUBLE members +contain zero; TEXT, LTEXT and BUF members +contain an empty string.
It is an error for LINK and LLINK members +to have no explicit value, so they must be initialised, either by default +(in the STRUCT statement) or explicitly (in the RESOURCE statement).
SRLINK members +may not be initialised (either in the STRUCT statement or +a RESOURCE statement) since they are automatically assigned +the resource id of the resource in which they appear.
Members which are themselves STRUCT s +may not be default initialised. They can only be initialised in the RESOURCE definition. +If they are not explicitly initialised, they will take up zero bytes in the +resource file. For example, given the following STRUCT definition:
STRUCT TEST2 + { + WORD value; + STRUCT tester; + }
The following RESOURCE statement only generates +the two bytes 0xFF 0x00.
RESOURCE TEST2 item + { + value=255; + }

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