ResolverIoctlCall

Other versions of this page are also available for the following:

• Windows Embedded CE 6.0 R3

8/28/2008

A Resolver DLL implements this function. The Location Framework calls this export as a result of an application calling LocationPluginIOCTL.

Syntax

DWORD  ResolverIoctlCall(
   HANDLE hProv,
      DWORD  dwCode,
   BYTE*  pBufIn,
   DWORD cbIn,
      BYTE*  pBufOut,
   DWORD* pcbOut
);

Parameters

• hProv
  Handle returned by ResolverIoctlOpen function.

• dwCode
  The dwCode value passed by LocationPluginIOCTL.

• pBufIn
  The pBufIn value passed by LocationPluginIOCTL.

• cbIn
  The cbIn value passed by LocationPluginIOCTL.

• pBufOut
  The pBufOut value passed by LocationPluginIOCTL.

• pcbOut
  The pcbOut value passed by LocationPluginIOCTL.

Return Value

The return value is passed back directly to the application.

If successful, return ERROR_SUCCESS.

If unsuccessful, return an error code.

Remarks

Great care should be taken in processing user data, because it is possible that a malicious application could crash the Resolver, the Location Framework, or even servicesd.exe if the Resolver does not properly check the paramaters.

The Location Framework will automatically map the pointers from the calling applications space into servicesd.exe space. If the caller has passed a structure that contains embedded pointers, it is the responsibility of the plugin DLL to map these pointers into the process space.

The pBufIn can only be used for reading in data; if the plugin writes any data into this buffer, it will not be copied out to the calling application’s memory space. Similarly if the application passes data in the pBufOut paramater, it will be not be copied into servicesd.exe’s process space.

Requirements

Header	lfplugin.h
Windows Embedded CE	Windows Embedded CE 6.0 and later

See Also

Reference

Location Framework Plugin Functions