String.CompareFileVersions

number String.CompareFileVersions (

Example 1

compare_version = String.CompareFileVersions("1.0.20.3", "1.0.2.3");

Compares the file version string "1.0.20.3" to version "1.0.2.3" and stores the result in the variable "compare_version." Since "1.0.20.3" is greater than "1.0.2.3", the number 1 would be returned.

Example 2

IsBigger = String.CompareFileVersions("1.0.0.1", "1.0.0.1");

Compares the file version "1.0.0.1" to "1.0.0.1" and stores the result in the variable "IsBigger." Since the version strings are identical, the number 0 would be returned.

Example 3

-- Get the current OS Version information
tVersionInfo = System.GetOSVersionInfo();

-- Combine Version information into a file-version string
sCurrentWindowsVersion = tVersionInfo.MajorVersion .. "." .. tVersionInfo.MinorVersion.. "." .. tVersionInfo.BuildNumber;

-- Specify the minimum required file version
sRequiredWindowsVersion = "5.1.2600";

-- Compare the current file version to the minimum requirement
nCompareResult = String.CompareFileVersions (sRequiredWindowsVersion, sCurrentWindowsVersion);

-- If the minimum requirement is greater than the current version, display an error and exit.
if (nCompareResult == 1) then
Dialog.Message("Error", "Windows XP or later is required to use this software.", MB_OK, MB_ICONSTOP, MB_DEFBUTTON1);
Application.Exit();
end

Gets the Operating System's version information, and compares it to a minimum value. If the installed operating system is not Windows XP or later (version 5.1.2600 or newer), an error message is displayed.