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Keyword this

Valid for: CANoe DE • CANoe:lite DE • CANoe4SW DE • CANoe4SW:lite DE Within an event procedure for receiving a CAN object or a variable, the data structure of the object is designated by the key word this. For example, you could access the first data byte of message 100 which was just received by means of the following: 
on message 100 {
    byte byte_0;
    byte_0 = this.byte(0);
    ...
}
Analogously, you could read the new value of the integer variable Switch which has just been changed by means of the following: 
on sysVar Switch {
    int val;
    val = @this;
    ...
}
Note
You should not change the value of this within an event procedure. However, to permit the use of this as a parameter, value changes made to this are not prohibited by the CAPL compiler. However, please note that these types of write accesses to this are only valid locally (i.e. within the event procedure). When compiling you will receive an appropriate warning. Thus, if you call the function output(this) after this has been changed in an on message event procedure, the unchanged original of this is passed, and not your change.

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Special Case: Output of signal values using this

on message 101
{
    float a = 0;
    a = this.Signal1.phys;
}
Note
For a signal length of more than 32 bit the read out of signal values from a message with this.<signalName> is not yet supported. In this case the dollar notation must be used, see the example below. 
on message 101
{
    float a = 0;
    a = $Signal1;
}
Access to signal values using this • Selectors