Checks if a string contains only uppercase characters.
StringIsUpper ( "string" )
| string | The string to check |
| Success: | 1. |
| Failure: | 0 if string contains non-uppercase characters. |
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.
StringIsAlNum, StringIsAlpha, StringIsASCII, StringIsDigit, StringIsLower, StringIsSpace, StringIsXDigit, StringLower, StringUpper
#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