Cursor Creation

Because standard cursors are predefined, it is not necessary to create them. To use a standard cursor, an application retrieves a cursor handle by using the LoadCursor or LoadImage function. A cursor handle is a unique value of the HCURSOR type that identifies a standard or custom cursor.

To create a custom cursor for an application, you would typically use a graphics application and include the cursor as a resource in the application's resource-definition file. At run time, call LoadCursor to retrieve the cursor handle. Cursor resources contain data for several different display devices. The LoadCursor function automatically selects the most appropriate data for the current display device. To load a cursor directly from a .CUR or .ANI file, use the LoadCursorFromFile function.

You can also create a custom cursor at run time by using the CreateIconIndirect function, which creates a cursor based on the content of an ICONINFO structure. The GetIconInfo function fills this structure with hot spot coordinates and information concerning the associated bitmask and color.

Applications should implement custom cursors as resources and use LoadCursor, LoadCursorFromFile, or LoadImage rather than create the cursor at run time. Using cursor resources avoids device dependence, simplifies localization, and enables applications to share cursor designs.

The CreateIconFromResourceEx function enables an application to create icons and cursors based on resource data. CreateIconFromResourceEx creates a cursor based on binary resource data from other executable (.EXE) files or dynamic-link libraries (DLLs). It must be preceded by calls to the LookupIconIdFromDirectoryEx function, as well as several resource functions. LookupIconIdFromDirectoryEx identifies the most appropriate cursor data for the current display device. For more information about resource functions, see Resources.

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