The XMLSpyControlPlaceHolder control is required to host an application helper window, see also Integration at Document Level. In the code listing below, the HTML object tag is used to instantiate a control that will host the Output window by default (PlaceholderWindowID is 3).
<!-- create helper window placeholder control. -->
<!-- the editor with focus will automatically direct its -->
<!-- output to the appropriate helper window. -->
<object id="objOutputWindow" classid="clsid:135DEEF4-6DF0-47c2-8F8C-F145F5F3F672" width="200" height="200" VIEWASTEXT>
<param name="PlaceholderWindowID" value="3">
</object>
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The HTML page also includes an example object that can host any entry helper window:
<!-- create helper window placeholder control. -->
<!-- the editor with focus will automatically direct its -->
<!-- output to the appropriate helper window. -->
<object id="objEHWindow" classid="clsid:135DEEF4-6DF0-47c2-8F8C-F145F5F3F672" width="200" height="200" VIEWASTEXT>
<param name="PlaceholderWindowID" value="0">
</object>
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It is possible to repopulate the object above with a different helper window by clicking the following buttons:
<!-- create buttons to switch between helper windows shown -->
<!-- in this placeholde window. -->
<tr border="0">
<td align="center">
<input type="button" value="EH - Elements" onclick="BtnHelperWindow(0)">
</td>
</tr>
<tr align="center">
<td align="center">
<input type="button" value="EH - Attributes" onclick="BtnHelperWindow(1)">
</td>
</tr>
<tr align="center">
<td align="center">
<input type="button" value="EH - Entities" onclick="BtnHelperWindow(2)">
</td>
</tr>
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When clicked, these buttons call the BtnHelperWindow method, which reassigns the PlaceholderWindowID of the control, and thus causes the ActiveX object to display a different helper window.
// specify which of the helper windows shall be shown in the placeholder control.
function BtnHelperWindow(i_ePlaceholderWindowID)
{
objPlaceholderWindow.PlaceholderWindowID = i_ePlaceholderWindowID;
}
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For the list of possible values of PlaceholderWindowID, see XMLSpyControlPlaceholderWindow.
