Issue:

Using the [COPYCLIP] command, the following two situations occur:

  1. The software is unresponsive for a long time to finish the command.
  2. The software is unresponsive for a long time, and after waiting for a period of time, a pop-up message "Cannot copy to clipboard" appears.

Causes:

Execution of the command [COPYCLIP] will generate several temporary files starting with "Zw$" in the system temp folder. The name of temporary files begins with "Zw$", followed by a random code with 4 digits and letters.

The temporary files will not be deleted when closing ZWCAD normally, and the user can paste the copied drawings into other CAD software.

However, the number of "Zw$" temporary files will increase as time goes by. At this time, if the user executes the [COPYCLIP] command or Ctrl+C in ZWCAD, two situations may occur:

  1. When creating temporary files, there is a long naming search process to prevent duplication of "Zw$" temporary file names.
  2. The 4-digit random code name of the temporary file is used up, and it is impossible to create a separate temporary file again. After a long time of searching, ZWCAD prompts "Cannot copy to clipboard".

Solution:

  1. Press [WIN+R] to open the [Run].
  2. Type [%temp%] to enter the system temp folder.
  3. Delete the temporary files starting with "Zw$".


CN Solution★中望CAD为什么复制图形缓慢或失败