API -> DefWindowProc [ Library : user32.dll, Category : Window Proc ] [C#, VB, VB.net]

DefWindowProc

Library : user32.dll Category : Window Proc

Api Example(s)
Create Controls at RunTime
This is a link to different site Keep Form Titlebars in Focus when ToolWindows are Shown
Responding to AppCommands
Creating an API Window (Using C Style Message Loop and Window Proc)
CBalloonToolTipNotify: Class for System tray icon, Balloon tooltip, simple tooltip and Popup menu

API Description :

The DefWindowProc function calls the default window procedure to provide default processing for any window messages that an application does not process. This function ensures that every message is processed. DefWindowProc is called with the same paramete

VB Declaration :

Show Multiline Public Private

Declare Function DefWindowProc Lib "user32" Alias "DefWindowProcA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Parameters :

· hWnd
Identifies the window procedure that received the message.

· Msg
Specifies the message.

· wParam
Specifies additional message information. The content of this parameter depends on the value of the Msg parameter.

· lParam
Specifies addi

Return :

The return value is the result of the message processing and depends on the message.

OS Requirement :

Requires Windows NT 3.1 or later
Requires Windows 95 or later

Dotnet Replacement :