TVariable Label Operators

Assigns or retrieves the label value of a TVariable.

const char16_t* FirstLabel() const;

const char16_t* NextLabel(
   const char16_t *label
) const;

const char16_t* GetLabel() const;

unsigned int SetLabel(
   unsigned int index,
   const char16_t *newLabel
);

unsigned int Erase(
   const char16_t *startLabel,
   const char16_t *finishLabel = NULL
);

Parameters

label	The label value.
index	The current index value.
newLabel	The new label value.
startLabel	The label from which to start.
finishLabel	The label that finishes the operation, if set to default, then it will have the same value of startLabel.

Return Values

The methods returning "const char16_t*" will return the string value of the label. SetLabel will return an error code - see Error Codes.

Remarks

Example Use

TVariable var;
var.SetStructure({"one"=>3,"two"=>4,"three"=>5,"four"=>6,
                  "five"=>2,"six"=>4,"seven"=>54,"eight"=>5});
const wchar_t *label = var.FirstLabel();
for(; label != NULL; label = var.NextLabel(label))
	MessageBox(
		TVariable("This label = ") 
			+ label + ", Has value = "
			+ var[i].ToString()
	);

Also See

Index Operators

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