Hi Tim,
I assume that the ActiveX Html Editor control you refer to is the HTML
Editor ActiveX control described in the following link:
http://nbit.net.au/vpages.aspx?ID=HTML Editor OCX
I performed a test on this HTML Editor ActiveX control in my WinForm
application and did reproduce the problem. Even if I set the KeyPreview
property of the form to true, the KeyDown event of the form doesn't get
fired when I press any key while the HTML Editor ActiveX control gets
focused.
I performed a test on Microsoft Web Browser ActiveX control and confirmed
that this problem doesn't exist on the Microsoft Web Browser ActiveX
control. So it seems that the problem doesn't exist on all unmanaged
control used in .NET programs.
When we add the HTML Editor ActiveX control into the Toolbox and drag it
onto a WinForm, VS IDE creates a wrapper class for this unmanaged control,
named AxrmpHTML.AxHTMLed. This class has exposed an event called
PreviewKeyDown. In fact, when we press any key when the HTML Editor ActiveX
control is focused, this PreviewKeyDown event is fired.
So a workaround of this problem is to set the KeyPreview property of the
form to true and handle the PreviewKeyDown event of the HTML Editor ActiveX
control. In this event handler, call the form's OnKeyDown method to get the
form's KeyDown event fired.
The following is a sample to do this:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.KeyPreview = true;
this.KeyDown += new KeyEventHandler(Form1_KeyDown);
this.axHTMLed1.PreviewKeyDown += new
PreviewKeyDownEventHandler(axHTMLed1_PreviewKeyDown);
}
void axHTMLed1_PreviewKeyDown(object sender,
PreviewKeyDownEventArgs e)
{
this.OnKeyDown(new KeyEventArgs(e.KeyCode));
}
void Form1_KeyDown(object sender, KeyEventArgs e)
{
Console.WriteLine("Form keydown:" + e.KeyCode.ToString());
}
}
Hope this helps.
If you have any question, please feel free to let me know.
Sincerely,
Linda Liu
Microsoft Online Community Support
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