devxlogo

IsStringLower – Determine whether a string contains only lowercase chars

IsStringLower – Determine whether a string contains only lowercase chars

Private Declare Function IsCharLower Lib "user32" Alias "IsCharLowerA" (ByVal _    cChar As Byte) As Boolean' Check is the specified string is composed only by lower case characters (no ' digits and no special chars)' Example:'    MsgBox "Is lower case? " & IsStringLower("hello")'    MsgBox "Is lower case? " & IsStringLower("heLlo")Public Function IsStringLower(ByVal sText As String) As Boolean    Dim i As Integer        IsStringLower = True        ' for each char in the string    For i = 1 To Len(sText)        ' if not lower case, set False as return value and exit the for loop        If IsCharLower(Asc(Mid$(sText, i, 1))) = False Then            IsStringLower = False            Exit For        End If    Next iEnd Function

devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist