AE Development Default Wheel zoom function reverse (C # Modify registry data)

The default scroll wheel scaling in ArcMap is a large, up-down

If you want to change to zoom up, zoom down, directly in the Arcmap-customize-arcmap options,

Change the bottom mouse Wheel and continuous Zoom/pan tool to Zoom in

In principle, modifying this property will change the Reversemousewheel value of Hkey_current_user\software\esri\desktop10.1\arcmap\settings in the registry from 1 to 0.

The default value of 1 represents a large devolution, while 0 represents a downward narrowing

However, the above modifications are not valid for ArcGIS engine in ArcGIS 10.1 version (the same should be done later)

Because this registry attribute in ArcGIS engine is in hkey_current_user\software\esri\engine10.1\arcmap\settings

In C # code, modify the registry data method as follows:

1 usingMicrosoft.Win32;2 3 Private voidReversemousewheel ()4         {5             Try6             {7RegistryKey Setkey = Registry.CurrentUser.OpenSubKey (@"software\esri\engine10.1\arcmap\settings",true);8                 if(Setkey! =NULL)9                 {Ten                     if(Setkey.getvalue ("Reversemousewheel") ==NULL) One                     { ASetkey.setvalue ("Reversemousewheel",0, Registryvaluekind.dword); -                     } -                     Else if(Setkey.getvalue ("Reversemousewheel"). ToString ()! ="0") the                     { -Setkey.setvalue ("Reversemousewheel",0); -                     } -  +                 } -             } +             Catch { } A}

Reversemousewheel

This method is also called at initialization time:

1  Public mainform () 2         {3            InitializeComponent (); 4              This . Reversemousewheel (); 5         }

mainform ()

This method modifies the wheel zoom function by directly modifying the Reversemousewheel value in the registry attribute.

C # Modify the registry other data can also refer to this code

AE Development Default Wheel zoom function reverse (C # Modify registry data)