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
`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.

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.

Parent topic: Condition-Blocks