Get_Profile_Boolean

include vmm.inc

mov     eax, Default            ; default value
mov     esi, OFFSET32 Profile   ; points to section name
mov     edi, OFFSET32 Keyname   ; points to entry name
VMMcall Get_Profile_Boolean

jc      not_found               ; carry set if entry not found
jz      no_value                ; zero set if entry has no value

mov     [Value], eax            ; 0 or -1 returned in EAX

Returns the value of a Boolean entry in the SYSTEM.INI file. This service is only available during initialization. Uses Flags.

• Returns with the carry and zero flags clear if the entry is found. In this case, the EAX register contains – 1 or 0 indicating that the entry value evaluates to true or false, respectively.

  If the carry flag is clear and the zero flag is set, the entry exists but has no corresponding value. If the carry flag is set, the entry does not exist or is not a valid boolean string. In these cases, the EAX register contains the value of the Default parameter.

Default

Default value to return if the entry has no corresponding value, does not exist, or is not a valid boolean string.

Profile

Address of a null-terminated string identifying the section in the SYSTEM.INI file to search. Can be zero, in which case the service searches the [386Enh] section.

Keyname

Address of a null-terminated string specifying keyname to search for.

Valid boolean strings that signify false are 0, False, N, No, and Off. Valid boolean strings that signify true are 1, On, True, Y, and Yes. Non-English versions of Windows may have language-specific additions to this list.

See also Get_Profile_Decimal_Int, Get_Profile_Fixed_Point, Get_Profile_Hex_Int