… to appear.

A part of the fixes for issues that occur in Edge IE mode.

There is a thread that uses SendMessage to send WM_USER in the mouse click process, and this thread goes into a wait state.
If this is not done, the new browser window will never be displayed.
Therefore, you need to process the WM_USER message while waiting for a new window to appear.

…hing to the window.

A part of the fixes for issues that occur in Edge IE mode.

When a new browser window appears and closes immediately, IEDriver may try to attach to a window that doesn't exist.
To solve this problem, check that the window process exists before attaching to the window.

…d window.

A part of the fixes for issues that occur in Edge IE mode.

If the grandchild window opens before it is attached to the child window, IEDriver cannot detect the appearance of the grandchild window.
Therefore, if a child window and a grandchild window appear at the same time, the handle of the grandchild window cannot be obtained.
To solve this problem, add wait to wait for the grandchild window to appear, and attach to all elements of diff list.