late_binding_of_image.shtml.htm

来自「mfc资料集合5」· HTM 代码 · 共 32 行

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<HTML>
<HEAD>
   <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
   <META NAME="Author" CONTENT="Zafir Anjum">
   <META NAME="GENERATOR" CONTENT="Mozilla/4.0 [en] (WinNT; I) [Netscape]">
   <TITLE>Late binding of image - I_IMAGECALLBACK</TITLE>
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<FONT COLOR="#AOAO99">Late binding of image - I_IMAGECALLBACK</FONT></H3></CENTER>

<HR WIDTH="100%">When inserting an item in the list view control, you don抰
have to specify the image just then. You can delay a decision on the image
by using a callback item. A callback item is an item that causes the list
view control to send the LVN_GETDISPINFO notification to its parent whenever
it needs information to display the item. The LVN_GETDISPINFO notification
can be handled by the parent window or it can be reflected back to the
list view control, the latter solution being the more preferred. Here are
the steps to use message reflection.
<BR>&nbsp;
<UL>
<LI>
Add a message handler for =LVN_GETDISPINFO in your CListCtrl derived class.
The

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