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Kill Internet Explorer axWebbrowser and restart

I have a aplication which hosts an axWebbrowser. This activex component needs about 10 to 15 mb of memory.

Because i have a option to move the aplication to tray icon and do some timer work i don't want that it just spends over 10mb for nothing.

So i remove the axwebbrowser with

axwebbrowser1.d ispose()

which works fine. After show the application back from the tray icon i will
implement the axwebbrowser again with the same i did it before:

System.Resource s.ResourceManag er resources = new System.Resource s.ResourceManag er(typeof(frmMa in));
this.axWebBrows er1 = new AxSHDocVw.AxWeb Browser();

// Tell the axwebbrowser that the main form controls the ie :)
object obj = axWebBrowser1.G etOcx();
IOleObject oc = obj as IOleObject;
oc.SetClientSit e(this);

// Some events we want to have
ie_events = (SHDocVw.WebBro wserClass) Marshal.CreateW rapperOfType(ax WebBrowser1.Get Ocx(), typeof(SHDocVw. WebBrowserClass ));
SHDocVw.DWebBro wserEvents_Befo reNavigateEvent Handler BeforeNavigateE = new SHDocVw.DWebBro wserEvents_Befo reNavigateEvent Handler(OnBefor eNavigate);
ie_events.Befor eNavigate += BeforeNavigateE ;

// The basic stuff to set the axwebbrowser into the form
((System.Compon entModel.ISuppo rtInitialize)(t his.axWebBrowse r1)).BeginInit( );
this.panel1.Con trols.Add(this. axWebBrowser1);
this.axWebBrows er1.ContainingC ontrol = this;
this.axWebBrows er1.Dock = System.Windows. Forms.DockStyle .Fill;
this.axWebBrows er1.Enabled = true;
this.axWebBrows er1.Location = new System.Drawing. Point(0, 0);
this.axWebBrows er1.OcxState = ((System.Window s.Forms.AxHost. State)(resource s.GetObject("ax WebBrowser1.Ocx State")));
this.axWebBrows er1.Size = new System.Drawing. Size(100, 100);
this.axWebBrows er1.TabIndex = 0;
this.axWebBrows er1.NavigateCom plete2 += new AxSHDocVw.DWebB rowserEvents2_N avigateComplete 2EventHandler(t his.axWebBrowse r1_NavigateComp lete2);
((System.Compon entModel.ISuppo rtInitialize)(t his.axWebBrowse r1)).EndInit();
If i remove the oc.setclientsit e(this) it works without any errors, but i can't control the ie on the full way
(the user content menu doesn't work) - but when i insert this line i get the error:

object not at object instance (translated from my german version :) )
At my app i use the iolecliensite, idochostuihandl er, ioledocumentsit e and idochostshowui methods.
at the idochostuihandl er i implemented the context-menu routine:

public uint ShowContextMenu (uint dwID, ref tagPOINT ppt, object pcmdtReserved, object pdispReserved)
// use this code to show a custom menu
const int MenuHandled = 0;
Point p = new Point(ppt.x, ppt.y);
p = PointToClient(p );
ie_cmenu.Show(t his, p);
return MenuHandled;

Or has anyone a idea how to free the memory from the axwebbrowser? But i want the component
back after showing the form again ;)


Nov 15 '05 #1
0 2920

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