Function Reference

StringIsUpper

Checks if a string contains only uppercase characters.

StringIsUpper ( "string" )

Parameters

Return Value

Remarks

As in other StringIs...() the check is stop if a Chr(0) is encountered inside the string.
Internally the C function is used to speed up the processing.

Note that digits/punctuation/whitespace will cause StringIsUpper() to return 0.

Related

StringIsAlNum, StringIsAlpha, StringIsASCII, StringIsDigit, StringIsLower, StringIsSpace, StringIsXDigit, StringLower, StringUpper

Example

#include <MsgBoxConstants.au3>
Local $sString= "UPPERCASESTRING"; Check whether this string contains only uppercase characters.
If StringIsUpper ($sString)Then
MsgBox ($MB_SYSTEMMODAL,"","The variable is an uppercase string")
Else
MsgBox ($MB_SYSTEMMODAL,"","The variable is not an uppercase string")
EndIf