Where is ExecWB? - wpf

Question

If I use WPF syntax:
<WebBrowser Grid.Row="1" Grid.Column="1" x:Name="htmlView"></WebBrowser>
Or if I add a WindowsFormsHost:
<WindowsFormsHost x:Name="formsHost" Grid.Row="1" Grid.Column="1">
</WindowsFormsHost>
And in the CS file:
public partial class MainWindow : Window
{
System.Windows.Forms.WebBrowser htmlView= new System.Windows.Forms.WebBrowser();
public MainWindow()
{
InitializeComponent();
formsHost.Child = htmlView;
htmlView.Navigate("d:\\test.xml");
}
private void menuFilePageSetup_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show("Do do");
}
}
Either way, the ExecWB method is not exposed. So I can't port this code over from my MFC C++ CHtmlView derived class:
ExecWB(OLECMDID_PAGESETUP, OLECMDEXECOPT_DONTPROMPTUSER, NULL, NULL);
Am I missing something? At this point in time I can't implement my print preview / page setup / zoom functionality because I can't use ExecWB.
I have tried deriving my own class from the Winforms browser but it is still not listed.
Thank you.
I don't understand why in this question:
How do I programmatically change printer settings with the WebBrowser control?
It refers to ShowPrintDialog but even that is not listed.
Partial success! I don't know why, but now, when I use the hosted Winforms version, I can atleast see some of the methods:
public partial class MainWindow : Window
{
System.Windows.Forms.WebBrowser htmlView= new System.Windows.Forms.WebBrowser();
public MainWindow()
{
InitializeComponent();
formsHost.Child = htmlView;
htmlView.Navigate("d:\\test.xml");
}
private void menuFilePageSetup_Click(object sender, RoutedEventArgs e)
{
htmlView.ShowPageSetupDialog();
}
private void MenuItem_Click(object sender, RoutedEventArgs e)
{
htmlView.ShowPrintPreviewDialog();
}
}
But ExecWb is still missing for managing things like zooming. I found this:
How do I print from the wpf WebBrowser available in .net 3.5 SP1?
One of the answers:
mshtml.IHTMLDocument2 doc = webBrowser.Document as mshtml.IHTMLDocument2;
doc.execCommand("Print", true, null);
But even if I add a reference to the mshtml library the compiler will not let me convert from HtmlDocument to IHtmlDocument2. Eventually I got this:
Clearing the selection in a webbrowser control
So now I know how to select all and copy to clipboard again (as long as I use the Winforms edition). However, having looked here:
https://msdn.microsoft.com/en-us/library/ms533049(v=vs.85).aspx
There seems to be no match for Optical Zoom:
ExecWB(OLECMDID_OPTICAL_ZOOM, OLECMDEXECOPT_DONTPROMPTUSER, &vZoom, NULL);

Answer 1

The basic answer for calling ExecWb is to do this:
Use the WinForms WebBrowser control
Then something like htmlView.Document.ExecCommand
Pass in commands like:
SelectAll
Copy
for clipboard items.
There are native methods for displaying the print dialogues etc..
Only thing that does not seem to be supported is:
ExecWB(OLECMDID_OPTICAL_ZOOM, OLECMDEXECOPT_DONTPROMPTUSER, &vZoom, NULL);