> For the complete documentation index, see [llms.txt](https://pinvokeisalive.gitbook.io/pinvoke/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pinvokeisalive.gitbook.io/pinvoke/directory/structures/msgboxparams.md).

# MSGBOXPARAMS

### C# Definition:

```cs
[StructLayout(LayoutKind.Sequential)]
public struct MSGBOXPARAMS
{    
    public uint cbSize; 
    public IntPtr hwndOwner; 
    public IntPtr hInstance;
    public String lpszText; 
    public String lpszCaption; 
    public uint dwStyle;
    public IntPtr lpszIcon;
    public IntPtr dwContextHelpId; 
    public MsgBoxCallback lpfnMsgBoxCallback; 
    public uint dwLanguageId;
}
```

### VB Definition:

```cs
TODO
```

### User-Defined Field Types:

```cs
// Delegate declaration for a callback that gets called when the help button on the message box is pushed.
public delegate void MsgBoxCallback( [HELPINFO] lpHelpInfo );
```

### Notes:

```cs
None.
```