private bool CheckCalibrePathIsValid()
 {
     ExtensionChecker.CheckAll();
     if (!ExtensionChecker.calibreStatus)
     {
         CalibrePathValidResult.Text = "路徑無效!";
         return(false);
     }
     CalibrePathValidResult.Text = "✓";
     return(true);
 }
 private bool CheckKindlegenPathIsValid()
 {
     ExtensionChecker.CheckAll();
     if (!ExtensionChecker.kindleGenStatus)
     {
         KindlegenPathValidResult.Text = "路徑無效!";
         return(false);
     }
     KindlegenPathValidResult.Text = "✓";
     return(true);
 }
 private bool CheckPandocPathIsValid()
 {
     ExtensionChecker.CheckAll();
     if (!ExtensionChecker.pandocStatus)
     {
         PandocPathValidResult.Text = "路徑無效!";
         return(false);
     }
     PandocPathValidResult.Text = "✓";
     return(true);
 }