WoW:API CameraOrSelectOrMoveStop
Simulates releasing the left mouse button.
Example:
/script CameraOrSelectOrMoveStop();
Used in conjunction with the CameraOrSelectOrMoveStart command, simulates a left mouse click.
Example:
/script CameraOrSelectOrMoveStart();
/script CameraOrSelectOrMoveStop();
Result is context sensitive, as the name of the command itself implies; is not a "true" left mouseclick, as it will not activate UI buttons.