CommonControls (Replacement of the MS common controls)

[Krool]

Good you asked.
In a first attempt, I couldn't find any difference either.
And then I found out why.

See the attached project.
It is made with intrinsic controls only.
Try the different options and see them working as expected.

And then place a TextBoxW1 somewhere.
Don't add any code to it.
See how the formerly working selection in the intrinsic textbox doesn't work anymore.

Interesting effect.
Textbox problem.zip.docx

Yes, interesting. But it is not my TextBoxW which is causing this.
You can put any blank UserControl with 'CanGetFocus' to True on the Form.
The issue also only happens when you click on the VB.TextBox from an VB.UserControl. When you click from the VB.CommandButton to the VB.TextBox you have your expected behavior.

EDIT: Again it is better behavior to select all in GotFocus by tab key and in MouseUp when clicking. In MouseUp also only all text will be selected if SelLength is 0. Thus the user is still free to select partially text without overriding. (See my example above)