Scrolling of ActiveX Control on HTML page in Internet Explorer 
Author Message
 Scrolling of ActiveX Control on HTML page in Internet Explorer

Hi, All!

I have realized  Windowless ActiveX Control for Internet Explorer (5-6). My
Control has large size and
placed into tag <DIV> on HTML page. For <DIV> I have enabled scrolling:

<div align=middle id="DrawView"
style="vertical-align:  bottom; SCROLLBAR-FACE-COLOR: #cdd8ed;
auto; WIDTH: 550px; SCROLLBAR-SHADOW-COLOR: #c0c0ff;
#191970; HEIGHT: 400px">

<OBJECT  id=DV2t codeBase=""
    onmouseup = HMouseUp onmousedown = HMouseDown
     type=application/x-oleobject height=250 onerror=HError width=350
         <PARAM NAME="Zoom" VALUE="1">
         <PARAM NAME="Rotation" VALUE="0">
         <PARAM NAME="ImageURL" VALUE=" http://www.*-*-*.com/ ;>
         <PARAM NAME="BackColor" VALUE="16313066">
         <PARAM NAME="ProgressColor" VALUE="14251836">


When user scrolls <DIV>, Internet Explorer updates entire visible area of
ActiveX Control and sends
WM_PAINT 3 times (dividing visible area on 3 parts on Y). As a result, my
ActiveX Control is flicking
and slowly redrawing in time of scrolling.

I need more effective scrolling. Right way for Windows - is to use
ScrollWindow (Win32API)  and to update
entire part of window at once, that invalidates at scrolling.

There are any ideas?  There is a way to force IE to scroll correctly? Or I
need to handle scrolling
self (by hooking some of IE or others sinks)?

Thanks and good luck!

Sun, 17 Oct 2004 12:31:29 GMT  
 [ 1 post ] 

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