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	== Parameters ==		== Parameters ==
-	'''INT''' processID|processType: The [[ProcessID]] of the process or the [[ProcessType]] of the type of processes to which the signal is to be sent. For a process to send a signal to itself, the [[local variable]] [[id]] can be used.	+	{|
-		+	| '''INT''' processID or processType || - The [[ProcessID]] of the process or the [[ProcessType]] of the type of processes to which the signal is to be sent.
-	'''INT''' signal: The code of the signal that is to be sent to the target process. This parameter is passed by way of a set of [[predefined constants]] which denote the signal which is to be sent. These are listed [[signals|here]].	+	|-
		+	| '''INT''' signal || - The code of the signal that is to be sent to the target process.
		+	|}
	== Notes ==		== Notes ==
	To obtain the processType of a function, the operator "Type" can be used.		To obtain the processType of a function, the operator "Type" can be used.
		+	For a process to send a signal to itself, the [[local variable]] [[id]] can be used.
		+	The parameter <signal> is passed by way of a set of [[predefined constants]] which denote the signal which is to be sent. These are listed [[signals|here]].
	== Example ==		== Example ==
	<pre>		<pre>
-	Signal( get_id(type enemy) , s_kill ); //kills a process of type enemy	+	Signal( get_id(type enemy) , s_kill ); // Kills a process of type enemy
-	Signal( id , s_kill_tree ); //kills the process that calls it, and all of its sons, their sons, etc.	+	Signal( id , s_kill_tree ); // Kills the process that calls it, and all of its descendants
-	Signal( Type player , s_freeze ); //freezes all processes of type player so that they are still displayed, but do not execute any code.	+	Signal( Type player , s_freeze ); // Freezes all processes of type player so that they are
		+	// still displayed, but do not execute any code.
	</pre>		</pre>

---

Revision as of 11:14, 18 April 2007

Contents 1 Definition 2 Returns 3 Parameters 4 Notes 5 Example

Definition

INT Signal ( <INT processID|processType> , <INT signal> )

Allows one process to control another process in a limited number of ways, by sending signals.

Returns

INT - Nothing

Parameters

INT processID or processType	- The ProcessID of the process or the ProcessType of the type of processes to which the signal is to be sent.
INT signal	- The code of the signal that is to be sent to the target process.

Notes

To obtain the processType of a function, the operator "Type" can be used. For a process to send a signal to itself, the local variable id can be used. The parameter <signal> is passed by way of a set of predefined constants which denote the signal which is to be sent. These are listed here.

Example

Signal( get_id(type enemy) , s_kill ); // Kills a process of type enemy
Signal( id , s_kill_tree );            // Kills the process that calls it, and all of its descendants
Signal( Type player , s_freeze );      // Freezes all processes of type player so that they are
                                       //     still displayed, but do not execute any code.