/////////////////////////////////////////////////////////////////////////////////////////////////
//
// InitializeSample()
//
// Create all sample objects responsible for interacting with UIA and highlighting hyperlinks.
//
// Note that this sample app assumes that all required operations succeed. A shipping app
// would need the appropriate error handling in place.
//
/////////////////////////////////////////////////////////////////////////////////////////////////
void InitializeSample()
{
// Initialize the highlighting used to magnify hyperlinks in the browser window.
_highlight = new Highlight();
_highlight.Initialize();
// Initialize the object which will make all the UIA calls on a background MTA thread.
_linkProcessor = new LinkProcessor();
_linkProcessor.Initialize(new SampleUIListUpdateDelegate(UpdateListOnUIThread), listViewLinks, _highlight);
// Initialize the event handler which is called when the UIA tree structure changes in the browser window.
SampleUIEventHandlerDelegate sampleUIEventHandlerDelegate = new SampleUIEventHandlerDelegate(HandleEventOnUIThread);
_sampleEventHandler = new SampleEventHandler(this, sampleUIEventHandlerDelegate);
}
/////////////////////////////////////////////////////////////////////////////////////////////////
//
// Win7UIAClientForm_FormClosed()
//
// Uninitialize and release everything created on startup.
//
/////////////////////////////////////////////////////////////////////////////////////////////////
void Win7UIAClientForm_FormClosed(object sender, FormClosedEventArgs e)
{
if (_linkProcessor != null)
{
_linkProcessor.Uninitialize();
_linkProcessor = null;
}
if (_highlight != null)
{
_highlight.Uninitialize();
_highlight = null;
}
if (_sampleEventHandler != null)
{
_sampleEventHandler.Uninitialize();
_sampleEventHandler = null;
}
// Give any background threads created on startup a chance to close down gracefully.
Thread.Sleep(200);
}
/////////////////////////////////////////////////////////////////////////////////////////////////
//
// s_DoWork()
//
// Static entry point for the background thread on which the calls to UIA will be made.
//
/////////////////////////////////////////////////////////////////////////////////////////////////
private static void s_DoWork(object data)
{
LinkProcessor linkProcessor = (LinkProcessor)data;
linkProcessor.ThreadProc();
}