IDebugRegisters2::GetValues2 method (dbgeng.h)
The GetValues2 method fetches the value of several of the target's registers.
Syntax
HRESULT GetValues2(
[in] ULONG Source,
[in] ULONG Count,
[in, optional] PULONG Indices,
[in] ULONG Start,
[out] PDEBUG_VALUE Values
);
Parameters
[in] Source
Specifies the register source to query.
The possible values are listed in the following table.
| Value | Register source |
|---|---|
| DEBUG_REGSRC_DEBUGGEE | Fetch register information from the target. |
| DEBUG_REGSRC_EXPLICIT | Fetch register information from the current explicit register context. |
| DEBUG_REGSRC_FRAME |
Fetch register information from the current scope's register context.
Note Stack unwinding does not guarantee accurate updating of the register context, so the scope frame's register context might not be accurate in all cases.
|
[in] Count
Specifies the number of registers whose values are requested.
[in, optional] Indices
Specifies an array that contains the indices of the registers from which to get the values. The number of elements in this array is Count. If Indices is NULL, Start is used instead.
[in] Start
If Indices is NULL, the registers will be read consecutively starting at this index. Otherwise, it is ignored.
[out] Values
Receives the values of the registers. The number of elements that this array holds is Count. See DEBUG_VALUE for a description of this parameter type.
Return value
This list does not contain all the errors that might occur. For a list of possible errors, see HRESULT Values.
| Return code | Description |
|---|---|
|
The method was successful. |
|
The value of the index of one of the registers is greater than the number of registers on the target computer. Partial results might have been obtained; those registers that could not be read will have the type DEBUG_VALUE_INVALID. |
Remarks
If the return value is not S_OK, some of the registers still might have been read. If the target was not accessible, the return type is E_UNEXPECTED and Values is unchanged. Otherwise, Values will contain partial results and the registers that could not be read will have type DEBUG_VALUE_INVALID. Ambiguity in the case of the return value E_UNEXPECTED can be avoided by setting the memory of Values to zero before calling this method.
The method GetValues performs the same task as this method but always uses the target as the register source.
For an overview of the IDebugRegisters interface and other register-related methods, see Registers.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | dbgeng.h (include DbgEng.h) |