CeQueryInstructionSet (RAPI)

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

The CeQueryInstructionSet function queries a remote Windows® phone to determine whether it supports the specified processor-specific instruction set.

Syntax

BOOL CeQueryInstructionSet(
  DWORD dwInstructionSet,
  LPDWORD lpdwCurrentInstructionSet
);

Parameters

• dwInstructionSet
  [in] The instruction set that will be queried to determine if it is supported by the currently running OS. Setting this parameter to PROCESSOR_QUERY_INSTRUCTION causes the device's current instruction set to be returned in the lpdwCurrentInstructionSet parameter. The following table shows the accepted values for this parameter.

  Value	Description	Floating point hardware	Floating point emulation
  PROCESSOR_ARM_V4_INSTRUCTION	ARM V4 instruction set.	No	Yes
  PROCESSOR_ARM_V4FP_INSTRUCTION	ARM V4 instruction set.	Yes	No
  PROCESSOR_ARM_V4I_INSTRUCTION	ARM V4 with Thumb instruction set.	No	Yes
  PROCESSOR_ARM_V4IFP_INSTRUCTION	ARM V4 with Thumb instruction set.	Yes	No
  PROCESSOR_ARM_V4T_INSTRUCTION	ARM V4 with Thumb instruction set.	No	Yes
  PROCESSOR_ARM_V4TFP_INSTRUCTION	ARM V4 with Thumb instruction set.	Yes	No
  PROCESSOR_QUERY_INSTRUCTION	Request to have the current instruction set reported to the caller.	No	No

• lpdwCurrentInstructionSet
  [out] Returns the current instruction set supported by the OS.

Return Value

Returns nonzero if the instruction set passed in through dwInstructionSet is supported by the current OS. Otherwise, returns zero.

Returns nonzero if dwInstructionSet is set to PROCESSOR_QUERY_INSTRUCTION. The lpdwCurrentInstructionSet parameter is then set to the current instruction set supported.

Returns zero if the dwInstructionSet value is unknown.

Remarks

This function can be used by any application that needs to determine if the code about to install or run will work on the current OS. The OS knows explicitly what instruction it will execute, and therefore will inform you if your installation should continue.

The following table shows the instruction set compatibility.

CeQueryInstructionSet will fail on mobile devices running a version of Windows Mobile that is earlier than Windows Mobile Version 5.0. In this case, CeQueryInstructionSet returns zero, and CeRapiGetError (RAPI) returns HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED).

Requirements

See Also

Reference

RAPI Functions