Issues spotted by static code analysis and other minor code changes#2

Merged

ppescher merged 4 commits intoppescher:masterfrom irwir:updates

Apr 18, 2017

+162-181

Commits on Jul 23, 2016

Issues spotted by static code analysis
irwir
committed

Commits on Jul 26, 2016

Partially reverted changes in previoius commit as unnecessary. Specifically, this point:
irwir
committed

Commits on Dec 3, 2016

Changes for 64-bit builds and others minor stuff.
irwir
committed

Commits on Mar 18, 2017

Revert to FromHandle() calls because FromHandlePermanent() fail in multithreaded application.
irwir
committed