user32.dll

Implementing Callback Functions
Exemplo EnumWindows

API calls List (USER32.DLL)

The secret life of GetWindowText
“GetWindowText() cannot retrieve text from a window from another application.”

Tutorial: Capturing and Running IE Instances in a Windows control

Working with Win32 API in .NET

Get Current Window Handle and Caption With Windows API In C#

Difference between WM_GETTEXT and GetWindowText?
Question: What is the difference between sending message WM_GETTEXT and calling GetWindowText()?
Answer: You can send WM_GETTEXTLENGTH and WM_GETTEXT message even across processes. GetWindowText takes shortcuts, it tries to directly pass a WM_GETTEXT message to the target windows window function instead of using SendMessage. That does not work across process boundaries.

Enumerating and Restoring Windows Using Callbacks

EnumWindows and EnumChildWindows Callbacks

por Vitor Silva