Printable View
Hello....
If no text is selected in my textbox, I don't want the copy or cut functions to be available on my toolbar/menu. Likewise if the clipboard is empty I don't want to Paste to be available.
I'm thinking that on the keypress/mousemove/any activity events of my textbox I could put in the appropriate code to enable and disable the relevant options. But this seems a bit messy to me. Is this the correct way to go about doing this or does anyone know of a better way?
Thanks
Hi, take a look at the code in the attachment. Note that the Clipboard.GetText method only works for plain text (e.g. normal text boxes). If you want to check if any Rich Text has been placed on the clipboard, for example, you need to use the RegisterClipboardFormat API. That's a bit tricky, but so far it looks like you don't need that. :)
That's perfect for half of my problem, thanks.
Have you got any ideas on how to do this for cut, copy and paste icons on a toolbar?
Hmm, that's more difficult since there is no specific event generated when clipboard actions take place. Take a look at the attached example. I used the Click and KeyUp events and it works well, as far as I've tested.
One problem is this; when the CheckButtons function has found text on the clipboard and enables the Paste button, the user switches to another application and erases the text from the clipboard, the button will still be active until CheckButtons is called once again. Perhaps you should also call the CheckButtons function when the form is activated. Play around with it; I don't know how reliable this code is. There may be better solutions. :)
Cheers again. This is the route I was going down. As you say, there may be better solutions, but for now I'll go down this path. Thanks again for your help, appreciate it.
I have put the code to disable/enable the relevant menu options and toolbar options in the Click Event of the Edit menu.
Then called these on the key_up and mouse_up events of my textbox. :bigyello:
Enjoy