c++ get other windows messages

Question

im learning to make things to other windows like resize the ie or any type of window. the only problem i don\'t know how i can get or give messages to other windows.
so

Answer 1

Normally your application won't receive Windows messages for other applications (this can be a security problem, for example with keylogger spyware). However, the CBT Hook method can be used to install a hook that receives other window message inputs.

However, note that a Windows feature called UIPI can cause problems with CBT hooks.