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Module: DataConversion in Category General VBA/VB6 : Data Type and Unit Conversion from Total Visual SourceBook

Convert data types within VBA and VB6.

Procedure List

Procedure Name	Type	Description
(Declarations)	Declarations	Declarations and private variables for the modDataConversion module.
AtLeast	Procedure	Get the greater of two values.
AtMost	Procedure	Get the lesser of two values.
VarToRoundLong	Procedure	Converts the passed variant to a long integer and rounds it using arithmetic rounding. Nulls are returned as 0.
DelimitSendKeys	Procedure	Fixes sendkeys statements by delimiting magic characters. This procedure converts a string to a SendKeys compatible format. Several characters have special meaning to the Sendkeys actions. This procedure delimits any occurrences of those special characters by wrapping them in braces {}.
NullIfZero	Procedure	Get Null if the passed value is zero, otherwise returns the passed value.
NullIfZLS	Procedure	Get Null if the passed value is a zero-length string (""), otherwise returns the passed value.
OverpunchedStringToNumber	Procedure	Converts a "zoned overpunch" number to a regular number. Many mainframe and minicomputer systems written in COBOL and other languages use a numeric format known as zoned overpunch. The numbers consist of normal ASCII characters, except that the last character indicates the sign of the number. For example, the following "number": 12345 F is actually: 123456. While 12345 O is actually: -123456. Decimal places are implied. A positive zero is "{" and a number ending in a negative zero is "}".
VarToCurrency	Procedure	Converts the passed variant to a currency value, 0 if the passed value is Null.
VarToDouble	Procedure	Converts the passed variant to a double, returning 0 if the passed value is Null.
VarToInteger	Procedure	Converts the passed variant to an integer, returning 0 if the passed value is Null.
VarToLong	Procedure	Converts the passed variant to a long integer, returning 0 if the passed value is Null.
VarToString	Procedure	Converts the supplied variant to a string. Nulls are returned as a zero-length string ("").
ZeroIfNull	Procedure	Get zero if Null is passed, otherwise returns the passed value. For Access/VBA, use the built in NZ command instead.
ZLSIfNull	Procedure	Get a zero-length string ("") if Null is passed, otherwise returns the passed value.

Example Code for Using Module: DataConversion

' Example of modDataConversion
'
' To use this example, create a new module and paste this code into it.
' Then run the procedure by putting the cursor in the procedure and pressing:
'    F5 to run it, or
'    F8 to step through it line-by-line (see the Debug menu for more options)

Private Sub Example_modDataConversion()
  ' Comments: Examples of using the modDataConversion module to convert data with VBA and VB6.
  '           See the results in the Immediate Window.

  Const cstrTmp As String = "%f^cb"

  Debug.Print "AtLeast(12, 2) returns " & AtLeast(12, 2)

  Debug.Print "AtMost(12, 2) returns " & AtMost(12, 2)

  Debug.Print "DelimitSendkeys(): input value of " & cstrTmp & " returns " & DelimitSendKeys(cstrTmp)

  Debug.Print "NullIfZLS(): input value of 's' returns: " & NullIfZLS("s")

  Debug.Print "ZLSIfNull(): input value of Null returns: " & ZLSIfNull(Null)

  Debug.Print "ZeroIfNull(): input value of Null returns: " & ZeroIfNull(Null)

  Debug.Print "NullIfZero(): input value of 2 returns: " & NullIfZero(2)

  Debug.Print "OverpunchedStringToNumber(): input value of 1234 returns: " & OverpunchedStringToNumber(1234, 2)

  Debug.Print "VarToCurrency(): input value of 1234.56 returns: " & VarToCurrency(12345.56)

  Debug.Print "VarToDouble(): input value of Null returns: " & VarToDouble(Null)

  Debug.Print "VarToInteger(): input value of Null returns: " & VarToInteger(Null)

  Debug.Print "VarToLong(): input value of Null returns: " & VarToLong(Null)

  Debug.Print "VarToRoundLong(): input value of 45.67889 returns: " & VarToRoundLong(45.67889)

  Debug.Print "VarToString(): input value of Null returns: " & VarToString(Null)

End Sub

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