public ImageMagickHelper(String newCompareExec)
{
compareExec = newCompareExec;
if (compareExec == null)
{
compareExec = SystemUtil.GetEnvironmentVariable(MAGICK_COMPARE_ENVIRONMENT_VARIABLE);
if (compareExec == null)
{
compareExec = SystemUtil.GetEnvironmentVariable(MAGICK_COMPARE_ENVIRONMENT_VARIABLE_LEGACY);
}
}
if (!CliCommandUtil.IsVersionCommandExecutable(compareExec, MAGICK_COMPARE_KEYWORD))
{
throw new ArgumentException(IoExceptionMessage.COMPARE_COMMAND_SPECIFIED_INCORRECTLY);
}
}
public GhostscriptHelper(String newGsExec)
{
gsExec = newGsExec;
if (gsExec == null)
{
gsExec = SystemUtil.GetEnvironmentVariable(GHOSTSCRIPT_ENVIRONMENT_VARIABLE);
if (gsExec == null)
{
gsExec = SystemUtil.GetEnvironmentVariable(GHOSTSCRIPT_ENVIRONMENT_VARIABLE_LEGACY);
}
}
if (!CliCommandUtil.IsVersionCommandExecutable(gsExec, GHOSTSCRIPT_KEYWORD))
{
throw new ArgumentException(IoExceptionMessage.GS_ENVIRONMENT_VARIABLE_IS_NOT_SPECIFIED);
}
}