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2.这是request的程序 & @8 w; h. i% _* R6 {* R// Request a value from Extend4 g( q# q3 o* x* h7 `
// 6 C* |1 Q+ h' \ q* @// Initialize the variant that will hold the BSTR. Set the variant's. ~9 c7 F0 ^) S3 J" v2 E
// type flag to indicate the fact that this variant holds a BSTR. Place the ( E/ ~! D9 F- c2 T// BSTR into the variant structure.+ Q6 ?1 ^' B5 C9 j/ E2 S8 w
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# A+ V: w9 B6 n: S6 T; ^& }9 n
( W0 ?* I! |/ l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 C: u. z; U. }8 u; t
VariantInit(&requestVariant[0]); 7 _3 R' v8 u, E" E6 D- g6 A a$ q! s% }
requestVariant[0].vt = VT_BSTR; ) x0 ^2 P- K9 C8 i8 g requestVariant[0].bstrVal = itemStr;% @ t6 U) S# a6 p* A
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topicStr = SysAllocString((WCHAR *) L"system"); 7 @+ U1 T% Q+ z! X& d$ w# g$ x( ? VariantInit(&requestVariant[1]); 8 E4 R, `* d. B" J) ^ requestVariant[1].vt = VT_BSTR; ' h. t& z. U7 d, a requestVariant[1].bstrVal = topicStr;1 f0 B* z: |! V) s+ z; o* ^) v
. \$ f; z7 R1 x// Set the DISPPARAMS structure that holds the variant. 2 o, Z- `$ d7 U. d/ J4 C 5 A+ A* V4 T! \2 F dp2.rgvarg = requestVariant;) p& D( k+ u/ v% ^+ E2 m
dp2.cArgs = 2; & N% N( G5 {% G g dp2.rgdispidNamedArgs = NULL; ' V" @! D# B U/ }4 |) i- I/ v dp2.cNamedArgs = 0; 1 U0 R: b: X0 w6 S& j& b' x7 ~/ f; {' Y
var.vt = VT_EMPTY; 5 O c) ^& X3 k/ Q; e. }5 _# k# q0 {+ n- ~5 c* E6 v
// Call IDispatch::Invoke() ( j o" C$ |' e. s) _4 h! j. a3 F7 g% J
hr = m_pDisp->Invoke( 5 @ G- M3 h! f2 G requestID, 0 W5 w/ O3 H3 x! t( W7 ~ IID_NULL, d: v' m9 t/ o1 n' \
LOCALE_SYSTEM_DEFAULT, t0 a: y; \/ U( T4 y3 k
DISPATCH_METHOD,) K0 }( E% g5 m) ?% B2 f3 T& y' s
&dp2, 3 a/ l9 a8 ^! O+ Q &var,9 ?9 ] I; O- g# j
&ei, * r6 j- A; h% q! q2 ` &uiErr);, Z1 [' A7 W f3 O$ N0 Y
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SysFreeString(topicStr);1 F- |) I$ ]( z9 Y" h; z
SysFreeString(itemStr); & n+ V- S7 ?" v! X请问该程序是获得extend里面的哪个值? ) p. v" A W+ b0 n0 Q/ \2 r9 N+ e( ^, a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????