/// <summary>
/// Occurs when this command is clicked
/// </summary>
public override void OnClick()
{
m_logoPath = GetLogoPath();
IMap map = m_hookHelper.FocusMap;
IDynamicMap dynamicMap = map as IDynamicMap;
IActiveView activeView = map as IActiveView;
/*IActiveViewEvents_Event */ avEvents = activeView as IActiveViewEvents_Event;
IDynamicMapEvents_Event dynamicMapEvents = dynamicMap as IDynamicMapEvents_Event;
IScreenDisplay screenDisplay = activeView.ScreenDisplay;
if (!m_bIsOn)
{
avEvents.AfterDraw += new IActiveViewEvents_AfterDrawEventHandler(avEvents_AfterDraw);
dynamicMapEvents.AfterDynamicDraw += new IDynamicMapEvents_AfterDynamicDrawEventHandler(dynamicMapEvents_AfterDynamicDraw);
}
else
{
dynamicMapEvents.AfterDynamicDraw -= new IDynamicMapEvents_AfterDynamicDrawEventHandler(dynamicMapEvents_AfterDynamicDraw);
avEvents.AfterDraw -= new IActiveViewEvents_AfterDrawEventHandler(avEvents_AfterDraw);
}
m_bIsOn = !m_bIsOn;
screenDisplay.Invalidate(null, true, (short)esriScreenCache.esriNoScreenCache);
screenDisplay.UpdateWindow();
}
public static void DrawText(IScreenDisplay paramScreenDisplay, IGeometry paramGeom, string paramText,
ISymbol paramSymbol)
{
if ((paramScreenDisplay == null || paramGeom == null || paramGeom.IsEmpty || paramSymbol == null
? false
: paramSymbol is ITextSymbol))
{
paramScreenDisplay.StartDrawing(paramScreenDisplay.hDC, -2);
paramScreenDisplay.UpdateWindow();
paramScreenDisplay.SetSymbol(paramSymbol);
if (paramText == null)
{
paramText = "";
}
paramScreenDisplay.DrawText(paramGeom, paramText);
paramScreenDisplay.FinishDrawing();
}
}
///<summary>Flash geometry on the display.</summary>
///<param name="geometry"> The input IGeometry to flash. Supported geometry types are GeometryBag, Polygon, Polyline, Point and Multipoint.</param>
///<param name="screenDisplay">An IScreenDisplay reference</param>
///<param name="delay">An integer that is the time in milliseconds to wait.</param>
public static void FlashGeometry(IGeometry geometry, IScreenDisplay screenDisplay, int delay, int times)
{
if (geometry == null || screenDisplay == null)
{
return;
}
bool continueFlashing = true;
using (ComReleaser comReleaser = new ComReleaser())
{
ITrackCancel cancelTracker = new CancelTrackerClass();
comReleaser.ManageLifetime(cancelTracker);
screenDisplay.CancelTracker = cancelTracker;
short cacheID = screenDisplay.AddCache();
int cacheMemDC = screenDisplay.get_CacheMemDC(cacheID);
IRgbColor fillColor = new RgbColorClass();
comReleaser.ManageLifetime(fillColor);
fillColor.Green = 128;
IRgbColor lineColor = new RgbColorClass();
comReleaser.ManageLifetime(lineColor);
screenDisplay.StartDrawing(cacheMemDC, cacheID);
DrawGeometry(geometry, fillColor, lineColor, (IDisplay)screenDisplay, cancelTracker);
ESRI.ArcGIS.esriSystem.tagRECT RECT = new tagRECT();
screenDisplay.FinishDrawing();
for (int j = 0; j < times; j++)
{
if (continueFlashing == true)
{
screenDisplay.DrawCache(screenDisplay.hDC, cacheID, ref RECT, ref RECT);
if (delay > 0)
{
System.Threading.Thread.Sleep(delay);
screenDisplay.Invalidate(null, true, cacheID);
screenDisplay.UpdateWindow();
System.Threading.Thread.Sleep(delay);
}
}
}
//---------------------------------------------------------------------
screenDisplay.RemoveCache(cacheID);
cancelTracker.Reset();
}
}