Does VarSetCapacity not work for class variable?

[magusneo]

"VarSetCapacity" Can't get correct outputs,"SetCapacity" works.

Code: Select all

class myclass{
	static field:="1234567890"
	__New(p){
		VarSetCapacity(this.field,256)
		;~ this.SetCapacity("field", 256)
		
		StrPut("abc", this.GetAddress("field"))
		MsgBox, % StrGet(this.GetAddress("field"),10)
		MsgBox,% this.field
	}
}

[lexikos]

this.field is not a variable reference (or as the documentation for VarSetCapacity puts it, the name of a variable). It is a sub-expression which retrieves a value from the object. The value it retrieves is not a variable reference either, so no, VarSetCapacity won't work.

A "class variable" is also not a variable in the same sense as local and global variables. The declaration does not affect the meaning of this.field; it's just one way to create a key-value pair. I probably should have called them "instance assignments" and "class assignments" rather than "instance variable declarations" and "class variable declarations".

[magusneo]

Learned more about class in AHK.Thanks.