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2.这是request的程序 / {+ E' O% \# V// Request a value from Extend 5 r9 m8 V3 n0 O3 Q; ^5 c* U// " _( Y9 P3 }8 e' P// Initialize the variant that will hold the BSTR. Set the variant's6 A. ?' f3 [$ X/ F2 o% C
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 ^8 n/ D' T G7 L& u// BSTR into the variant structure. 7 x7 J; \8 O+ r; U% u4 x " l* a4 V) X5 c* j4 J; f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* l+ u b( l5 [' j7 n9 J. \0 b5 a
% V; j& z) ^# F$ v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 ~5 v( v7 _2 g- b- `; @
VariantInit(&requestVariant[0]); 5 n% i; T' H a' O8 Y requestVariant[0].vt = VT_BSTR; 9 _! U0 i$ k+ a requestVariant[0].bstrVal = itemStr; ) g; d' C( e# {- f * v+ C% {7 ^) U1 ^8 m. }. c4 Y topicStr = SysAllocString((WCHAR *) L"system"); 3 N- i1 v5 x7 u7 ~ VariantInit(&requestVariant[1]); 9 D+ s/ s' [; t# Z$ }5 i0 z requestVariant[1].vt = VT_BSTR;4 D* ]$ l2 u: p
requestVariant[1].bstrVal = topicStr; + T. W7 n$ J8 Z" C " A Z: V6 b8 r. s5 R4 v// Set the DISPPARAMS structure that holds the variant. 7 n# k5 L" y" f6 j1 a7 K" `: b8 n4 q% k
dp2.rgvarg = requestVariant; + [- a( @$ t* k# |; b dp2.cArgs = 2; % g5 \! S7 h Q/ y8 m dp2.rgdispidNamedArgs = NULL; ) \) q1 O2 ^' q- j0 a dp2.cNamedArgs = 0;9 }" b: i6 Q" s/ K# u
: ]2 J2 ?9 p4 |( Y0 Q" \2 O% P var.vt = VT_EMPTY; ( a4 ]& i) Y1 @$ k- A- a# o; F/ a' ]: G" A. V
// Call IDispatch::Invoke() 1 G* N7 K. k1 _; t( D( G. G8 G3 f) O1 g' Y
hr = m_pDisp->Invoke(/ v# f. I2 s! J" J
requestID,2 b" Q4 q! ]# ~6 V
IID_NULL, 5 N8 F9 u3 A0 |8 v LOCALE_SYSTEM_DEFAULT,+ ~" J0 Y+ Q0 e' h. [% b+ x" w
DISPATCH_METHOD, . b/ ~) a- H f" E &dp2, # G! M7 c" ~% a, O. t. f# _3 ] &var, ' t4 R+ T# l& Y. r4 y& A( ~3 G &ei, , ]* F! D3 p. C8 |8 L &uiErr); " F" K7 ]' k( g; q! e! t! S- D6 X$ A: i
SysFreeString(topicStr); j' N3 _% u" X$ X SysFreeString(itemStr);* R' [% c2 C2 e F' `% J# a, l
请问该程序是获得extend里面的哪个值?$ Z# T6 K6 n! D9 c. m$ }+ B! P
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????