You should try ICorDebugOLFrame->EnumerateArguments
This is code for this :
ICorDebugFrame *frame;//frame for this function
ICorDebugChain *chain;//chain including this frame
ICorDebugModule *module;//module where the function is defined
//---------------------
{
ICorDebugValueEnum *valueEnum=0;HRESULT hr;ICorDebugILFrame *ILFrame=0;
if (frame!=0){
frame->QueryInterface(IID_ICorDebugILFrame,(void **)&ILFrame);
}
if (ILFrame!=0){
hr=ILFrame->EnumerateArguments(&valueEnum);
}
ULONG cArguments;
if (valueEnum!=0){
valueEnum->GetCount(&cArguments);
valueEnum->Reset();
}
//remember that first argument for nonstatic function is "this" value
ICorDebugRegisterSet *registers=0;ICorDebugNativeFrame *nativeFrame=0;
if (frame!=0){
hr=frame->QueryInterface(IID_ICorDebugNativeFrame,(void**)&nativeFrame);
}
ICorDebugProcess *process=0;
if (module!=0){
module->GetProcess(&process);
}
if (ILFrame!=0){
ILFrame->Release();
}
if (nativeFrame!=0){
nativeFrame->GetRegisterSet(®isters);
nativeFrame->Release();
}
for (unsigned int j=0;j<cArguments;j++)
{
ULONG32 valsize=0;ULONG retrieved;ICorDebugValue *argValue=0;CORDB_ADDRESS addr=0;
DWORD bytesRetrieved=0;BYTE *val=0;
if (valueEnum!=0){
hr=valueEnum->Next(1,(ICorDebugValue **)&argValue,&retrieved);
argValue->GetSize(&valsize);
hr=argValue->GetAddress(&addr);
if (addr==0){
//some of arguments may be stored in registers
//try nativeFrame->GetRegisterSet
}
else
{
val = new BYTE[valsize];
process->ReadMemory(addr,valsize,val,&bytesRetrieved);
}
}
----- Original Message -----
From: "John Keeney" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, April 12, 2002 5:31 PM
Subject: [DOTNET] InProc Profiler/Debugger ICorDebugILFrame::GetArgument
> Hi All,
>
> Im trying to access the parameters to a function call in the Inproc
> debugger.
>
> In a profiler when I catch function entry, I get access to the inproc
> debugger interfaces and from that I get access to the current thread's
> ICorDebugILFrame interface with ICorDebugThread::GetActiveFrame.
> Then call ICorDebugILFrame::GetArgument.
>
> I think this is the best way to get access to the parameter values of a
> function call in this profiler callback. (If not please tell me. I haven't
> tried IMetaDataImport fully yet)
>
> When I call the GetArgument method it sometimes fails with
> CORDBG_E_IL_VAR_NOT_AVAILABLE, but not always!
> Even if ICorDebugILFrame::EnumerateArguments indicates that there are
> arguments available, i can't access them with GetArgument!
> (ICorDebugValueEnum::Next also fails with the same error)
>
> Note this works fine for some methods, but not for others even of the same
> class. I really have no idea why.
> eg
> OK for: .ctor, Set_Property etc
> Not OK for: ToString (overridden), ordinary public methods with standard
> value type params, etc
>
> Has anyone any ideas?
>
> Thanks
> John
>
>
> #define CORDBG_E_IL_VAR_NOT_AVAILABLE EMAKEHR(0x1304)
> // An IL variable is not available at the current native IP.
>
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