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Allow UPPER-CASE only in a Text Box

Visual Basic 6, or VB Classic

Easy trick to allow only text and converts it to upper-case. (Backspace is optional)

Original Author: Acable


Private Sub Text1_KeyPress(KeyAscii As Integer)
  Select Case KeyAscii
    Case 8
      'Delete this line and backspace will not be allowed
    Case 65 To 90
      'UPPER-CASE is allowed, do nothing here
    Case 97 To 122
      'This is lower case. By turning off Bit-5 lower-case will converted to UPPER-CASE
      KeyAscii = KeyAscii Xor 32
    Case Else
      'Other keys are not allowed. Set KeyAscii to 0 and nothing will be printed.
      KeyAscii = 0
  End Select
End Sub

About this post

Posted: 2003-06-01
By: ArchiveBot
Viewed: 132 times


Visual Basic 6


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