Version Information Routines

Project: Version Information Component

Unit: PJVersionInfo

These functions are provided mainly for users of Delphi 2005 and earlier who don’t have the extended functionality of TPJVersionNumber. The functions seek to replicate that functionality.

VerNumToStr

Applies to: ~>3.3

function VerNumToStr(const Ver: TPJVersionNumber): string;

VerNumToStr description

Converts the given TPJVersionNumber record into a dotted quad string and returns it.

VerNumToStr example

If the following code is executed the string variable S will have the value '2.5.8.3'.

var
  S: string;
  VN: TPJVersionNumber;
begin
  VN.V1 := 2;
  VN.V2 := 5;
  VN.V3 := 8;
  VN.V4 := 3;
  S := VerNumToStr(VN);
  // ...
end;

VerNumToStr remarks

Users of Delphi 2006 and later can simply assign a TPJVersionNumber record to a string to get exactly the same effect. There is never any need to call VerNumToStr.

CompareVerNums

Applies to: ~>3.3

function CompareVerNums(const Ver1, Ver2: TPJVersionNumber): Integer;

CompareVerNums description

Compares two TPJVersionNumber records. Return values are:

• 0 if Ver1 and Ver2 are the same
• <0 if Ver1 is less than Ver2
• >0 if Ver1 is greater than Ver2

CompareVerNums remarks

Users of Delphi 2006 should rarely, if ever, need to use this function. Two version number records can be directly compared using the normal =, <>, <, <=, > and >= operators.