FixedZoomOut.cs
// Copyright 2012 ESRI // // All rights reserved under the copyright laws of the United States // and applicable international laws, treaties, and conventions. // // You may freely redistribute and use this sample code, with or // without modification, provided you include the original copyright // notice and use restrictions. // // See the use restrictions. // using System; using ESRI.ArcGIS.Carto; using ESRI.ArcGIS.Geometry; using ESRI.ArcGIS.Controls; using ESRI.ArcGIS.SystemUI; using ESRI.ArcGIS.ADF.CATIDs; using System.Runtime.InteropServices; namespace PanZoom { [ClassInterface(ClassInterfaceType.None)] [Guid("B50CB8E7-1CD0-41d3-8C89-4CD8969E802F")] public class FixedZoomOut : ICommand { #region COM Registration Function(s) [ComRegisterFunction()] [ComVisible(false)] static void RegisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryRegistration(registerType); // // TODO: Add any COM registration code here // } [ComUnregisterFunction()] [ComVisible(false)] static void UnregisterFunction(Type registerType) { // Required for ArcGIS Component Category Registrar support ArcGISCategoryUnregistration(registerType); // // TODO: Add any COM unregistration code here // } #region ArcGIS Component Category Registrar generated code /// <summary> /// Required method for ArcGIS Component Category registration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryRegistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Register(regKey); } /// <summary> /// Required method for ArcGIS Component Category unregistration - /// Do not modify the contents of this method with the code editor. /// </summary> private static void ArcGISCategoryUnregistration(Type registerType) { string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID); ControlsCommands.Unregister(regKey); } #endregion #endregion [DllImport("gdi32.dll")] static extern bool DeleteObject(IntPtr hObject); private bool m_enabled; private System.Drawing.Bitmap m_bitmap; private IntPtr m_hBitmap; private IHookHelper m_pHookHelper; public FixedZoomOut() { string[] res = GetType().Assembly.GetManifestResourceNames(); if(res.GetLength(0) > 0) { m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream(GetType(), "zoomoutfxd.bmp")); if(m_bitmap != null) { m_bitmap.MakeTransparent(m_bitmap.GetPixel(1,1)); m_hBitmap = m_bitmap.GetHbitmap(); } } m_pHookHelper = new HookHelperClass (); } ~FixedZoomOut() { if(m_hBitmap.ToInt32() != 0) DeleteObject(m_hBitmap); } #region ICommand Members public void OnClick() { //Get IActiveView interface IActiveView pActiveView = (IActiveView) m_pHookHelper.FocusMap; //Get IEnvelope interface IEnvelope pEnvelope = (IEnvelope) pActiveView.Extent; //Expand envelope and refresh the view pEnvelope.Expand (1.25, 1.25, true); pActiveView.Extent = pEnvelope; pActiveView.Refresh(); } public string Message { get { return "Zoom out from the center of the map"; } } public int Bitmap { get { return m_hBitmap.ToInt32(); } } public void OnCreate(object hook) { m_pHookHelper.Hook = hook; m_enabled = true; } public string Caption { get { return "Fixed Zoom Out"; } } public string Tooltip { get { return "Fixed Zoom Out"; } } public int HelpContextID { get { // TODO: Add FixedZoomOut.HelpContextID getter implementation return 0; } } public string Name { get { return "Sample_Pan/FixedZoomOut"; } } public bool Checked { get { return false; } } public bool Enabled { get { return m_enabled; } } public string HelpFile { get { // TODO: Add FixedZoomOut.HelpFile getter implementation return null; } } public string Category { get { return "Sample_Pan/Zoom"; } } #endregion } }