Topic: Clipboard Functions ?

[snownut2]

This line will clear the clipboard of all contents;

Code - Auto/Visual Lisp: [Select]

1. (startapp "cmd /c \"echo off | clip\"" )
2.  

Any ideas on how to check if the clipboard has any contents at all (not just text), specifically i am looking to see if a png image is in there.

[ribarm]

That line will clear only text clipboard contents... Pictures or other CAD entities stored in clipboard will remain there until you really quit CAD... I must say by my knowledge that there is no other way to empty it if objects are in memory... And to see what's stored, only way is to paste it...

[snownut2]

Marco,

I tested by pasting a png image into the clipboard, then executed the line of code, then tried to paste image. It was not there to paste.

Anyway I believe I can use the "GetClipboardSequenceNumber" and compare results before copying to clipboard and after, to be sure contents have changed.

Any thoughts on how to institute this.

Thanks,
Bruce

[ribarm]

Hmm... You are right, but something always remains in memory - empty MTEXT entity...

[snownut2]

I saw that to, that has to be something AutoCad is interpreting wrong, how could the clipboard go from containing a png file to an empty mtext entity without out pasting anything into it.