Ensure wxChoice reported width never becomes negative in wxMSW.

Don't set the pending size to (-1, valid-height) as it is always supposed to
be either fully valid or fully invalid (meaning there is no pending size
change).

Closes #15723.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75654 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Deal correctly with non-ASCII hostnames in wxGetFullHostName() in wxMSW.

Somewhat surprisingly, Windows can return a non-ASCII string from
gethostname(). It's not really clear what happens if the host name is not
representable in the current locale encoding at all, but at least make the
function work in case it is.

Closes #15875.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75655 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix exit on last TLW logic after the change of r75633.

The changes in this revision meant to prevent the closure of transient dialogs
from quitting the application (see #15880) prevented any application using AUI,
including the aui sample, from exiting as the AUI utility frames deleted
during the main frame destruction were returning false from their
IsLastBeforeExit() now.

Fix this by relaxing the check and ignoring the parent if it is already being
deleted anyhow -- in this case there is no danger of closing it accidentally.

Closes #15894.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75656 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Pass non-primitive types by const reference instead of value.

No real changes, just avoid the unnecessary copying and also make the
signatures more consistent by adding the apparently forgotten "&" in a couple
of places.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75657 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't pass ID to wxWindow::LoadNativeDialog() by reference.

This is completely unnecessary and confusing.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75658 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't pass input parameter by non-const reference unnecessarily.

This is confusing.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75659 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Correct wrong error handler in wxDialUpManagerMSW code.

Forgot to set the success flag to false if thread creation failed.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove redundant checks from conditional statements.

It is not necessary to test for the condition which is already known to be
true or false because the code is inside the if statement checking it.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75661 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove unnecessary redundant assignments.

Don't assign values consecutively to the same variable without using it in
between the assignments, this is useless.

See #15893.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75662 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775