# Function Reference

# StringUpper

Converts a string to uppercase.

StringUpper ( "string" )

## Parameters

string | The string to convert.

## Return Value

Returns the string converted to uppercase.

## Related

StringCompare, StringInStr, StringIsAlNum, StringIsAlpha, StringIsASCII, StringIsLower, StringIsSpace, StringIsUpper, StringIsXDigit, StringLeft, StringLen, StringLower, StringMid, StringReplace, StringRight, StringSplit, StringTrimLeft, StringTrimRight

## Example

    #include <MsgBoxConstants.au3>

    Local $sString = StringUpper("This is a string") ; Convert the following string to uppercase.
    MsgBox($MB_SYSTEMMODAL, "", "StringUpper returned: " & $sString)