Conditions

A condition can be structured in any of the following ways:

Name	Usage
condition-primitive	`(condition)`
`AND`	`(condition) AND (condition)`
`OR`	`(condition) OR (condition)`
`NOT`	`NOT(condition)` Note: Specify the condition within braces, when using `IF` statement with `NOT` operator. For example: IF NOT (MachineUid = 0x101fb3dd)

condition-primitive

A condition-primitive can be any of the following:

Usage	Description
`attrib=value`	Condition to test the `Equal to` expression.
`attrib<>value`	Condition to test the `Less than or greater than` expression
`attrib>value`	Condition to test the `Greater than` expression.
`attrib<value`	Condition to test the `Less than` expression.
`attrib>=value`	Condition to test the `Greater than or equal to` expression.
`attrib<=value`	Condition to test `Less than or equal to` expression.
`exists(filename)`	Tests for the existence of a file.
`appprop(uid,propid)`	Retrieves the properties from another registry entry.
`package(package_uid)`	Tests for the existence of an installed package.
`version(package_uid,rel_operator,v_major,v_minor,v_build)`	Tests for the existence of a specific version of the installed package. v_major = major component of the version (range 0-127); v_minor = minor component of the version (range 0-99); v_build = build component of the version (range 0-32,767)

attrib

attrib can be one of the attributes defined in HALData::TAttribute. These attributes correspond to hardware properties of the device. It must be specified in uppercase and without the initial letter E. The following attributes are supported:

PKG variable name	HALData attribute (as retrieved by HAL::Get())
`MANUFACTURER`	`HALData::EManufacturer`
`MANUFACTURERHARDWAREREV`	`HALData::EManufacturerHardwareRev`
`MANUFACTURERSOFTWAREREV`	`HALData::EManufacturerSoftwareRev`
`MANUFACTURERSOFTWAREBUILD`	`HALData::EManufacturerSoftwareBuild`
`MODEL`	`HALData::EModel`
`MACHINEUID`	`HALData::EMachineUid`
`DEVICEFAMILY`	`HALData::EDeviceFamily`
`DEVICEFAMILYREV`	`HALData::EDeviceFamilyRev`
`CPU`	`HALData::ECPU`
`CPUARCH`	`HALData::ECPUArch`
`CPUABI`	`HALData::ECPUABI`
`CPUSPEED`	`HALData::ECPUSpeed`
`SYSTEMTICKPERIOD`	`HALData::ESystemTickPeriod`
`MEMORYRAM`	`HALData::EMemoryRAM`
`MEMORYRAMFREE`	`HALData::EMemoryRAMFree`
`MEMORYROM`	`HALData::EMemoryROM`
`MEMORYPAGESIZE`	`HALData::EMemoryPageSize`
`POWERBACKUP`	`HALData::EPowerBackup`
`KEYBOARD`	`HALData::EKeyboard`
`KEYBOARDDEVICEKEYS`	`HALData::EKeyboardDeviceKeys`
`KEYBOARDAPPKEYS`	`HALData::EKeyboardAppKeys`
`KEYBOARDCLICK`	`HALData::EKeyboardClick`
`KEYBOARDCLICKVOLUMEMAX`	`HALData::EKeyboardClickVolumeMax`
`DISPLAYXPIXELS`	`HALData::EDisplayXPixels`
`DISPLAYYPIXELS`	`HALData::EDisplayYPixels`
`DISPLAYXTWIPS`	`HALData::EDisplayXTwips`
`DISPLAYYTWIPS`	`HALData::EDisplayYTwips`
`DISPLAYCOLORS`	`HALData::EDisplayColors`
`DISPLAYCONTRASTMAX`	`HALData::EDisplayContrastMax`
`BACKLIGHT`	`HALData::EBacklight`
`PEN`	`HALData::EPen`
`PENX`	`HALData::EPenX`
`PENY`	`HALData::EPenY`
`PENDISPLAYON`	`HALData::EPenDisplayOn`
`PENCLICK`	`HALData::EPenClick`
`PENCLICKVOLUMEMAX`	`HALData::EPenClickVolumeMax`
`MOUSE`	`HALData::EMouse`
`MOUSEX`	`HALData::EMouseX`
`MOUSEY`	`HALData::EMouseY`
`MOUSEBUTTONS`	`HALData::EMouseButtons`
`CASESWITCH`	`HALData::ECaseSwitch`
`LEDS`	`HALData::ELEDs`
`INTEGRATEDPHONE`	`HALData::EIntegratedPhone`
`DISPLAYBRIGHTNESS`	`HALData::EDisplayBrightness`
`DISPLAYBRIGHTNESSMAX`	`HALData::EDisplayBrightnessMax`
`KEYBOARDBACKLIGHTSTATE`	`HALData::EKeyboardBacklightState`
`ACCESSORYPOWER`	`HALData::EAccessoryPower`
`SYSTEMDRIVE`	`HALData::ESystemDrive`
`FPHARDWARE`	`HALData::EHardwareFloatingPoint`
`NUMHALATTRIBUTES`	`HALData::ENumHalAttributes`

The following attributes, which are not stored in the HAL, can additionally be specified:

Attribute Description

Attribute	Description
`LANGUAGE`	An integer that identifies the language selected by the Symbian device user, during installation. For possible values, see the TLanguage enumeration defined in `e32lang.h`. Note: It is recommended to use language blocks to install language-specific files.
`Option<n>`	Specifies the options that are displayed to the Symbian device user during installation. See Option-List for more information.

LANGUAGE

An integer that identifies the language selected by the Symbian device user, during installation. For possible values, see the TLanguage enumeration defined in e32lang.h.

Note: It is recommended to use language blocks to install language-specific files.

Option<n>

Specifies the options that are displayed to the Symbian device user during installation. See Option-List for more information.