Try to implement global keyboard shortcut in MDI parent/child form and other form by using ProcessCmdKey

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  11 years ago

  by scudsong

  scud song

  Los Angeles, United States

  Joined 11 years ago

  I override ProcessCmdKey() in my MDI parent form class and have some keyboard shortcut calling method in same class. But I wish to make these hotkeys working in parent/child form and other form. The case now is when focus on the other form(regular form, not MDI), ProcessCmdKey() doesn't capture keyboard anymore. Which class should I put ProcessCmdKey() in and anything to make it work? Thanks!

      namespace myNamespace
      {
          public class MDIParent : System.Windows.Forms.Form
          {
  
              public bool NextTab(){...}
              public bool PreviousTab(){...}
  
              protected override bool ProcessCmdKey(ref Message message, Keys keys)
              {
                  switch (keys)
                  {
                      case Keys.Control | Keys.Tab:
                          NextTab();
                          return true;
  
                      case Keys.Control | Keys.Shift | Keys.Tab:
                          PreviousTab();
                          return true;
                  }
                  return base.ProcessCmdKey(ref message, keys);
              }
          }
  
          public class mySecondForm : System.Windows.Forms.Form
          {
              ...
          }
      }
  

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