7 A8 ~; A3 Q' b' \: j2.这是request的程序. y5 f$ `" a( q3 L. N: N5 V* `% Z+ N
// Request a value from Extend$ B0 D# m4 Y3 o
// . ~) B: u. e. E2 i7 d# z. d, K4 ]// Initialize the variant that will hold the BSTR. Set the variant's* F! x! _- I2 j; ?* i/ A J! k
// type flag to indicate the fact that this variant holds a BSTR. Place the$ R/ C8 k4 b! ^. S: B
// BSTR into the variant structure. ! T2 ~; {, `: x ^9 E4 |: w- S. E : k, v* Q: Z) v0 Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* Z9 Y( V1 ?+ T8 m
$ y7 X& {0 A5 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 T% t& _- P8 J8 P" `9 |$ c X; G
VariantInit(&requestVariant[0]); $ b2 j$ V5 S9 E/ g4 X: R4 D! C. q
requestVariant[0].vt = VT_BSTR;2 a5 T0 n3 A. d$ u
requestVariant[0].bstrVal = itemStr; % W3 Y S1 {$ x6 I4 o; D % b0 m7 V* j8 B9 ~ topicStr = SysAllocString((WCHAR *) L"system"); ; l% V4 n2 S& u! L4 z; S VariantInit(&requestVariant[1]); " ^: [% h0 H/ ]9 E" c1 E1 l
requestVariant[1].vt = VT_BSTR;3 a6 ]7 M7 _6 n; [# v* e
requestVariant[1].bstrVal = topicStr; ) x8 t* m# J- H6 ?5 @, C/ I( ^. g! ]) h3 H' a2 ?
// Set the DISPPARAMS structure that holds the variant.( s, }3 T5 L; i1 r
5 N) {1 l0 W4 O8 c- i' s dp2.rgvarg = requestVariant;+ }7 r: {" ?7 x" t3 s
dp2.cArgs = 2; / H: @# Z7 I9 _+ r4 P: n dp2.rgdispidNamedArgs = NULL;7 d+ W% W6 c& N
dp2.cNamedArgs = 0; ) c" n# t/ h& i( a7 T. U% m" F# H2 w3 F& G! Y
var.vt = VT_EMPTY;6 L1 X; U J8 O+ W3 g C" x5 G
6 H1 S# v( `% a9 y K$ e// Call IDispatch::Invoke() % u/ o* S- \) b y2 i6 d/ c5 ]2 X8 C' L
hr = m_pDisp->Invoke(# T" W% m, @/ ^) D$ }% Z
requestID,3 @9 P/ f2 S% d( y q: S
IID_NULL, 5 K0 w5 z3 e ^, Z# s6 J& a4 y+ q LOCALE_SYSTEM_DEFAULT, 8 O' A% N7 J2 S8 p6 x3 \- { DISPATCH_METHOD,; L# c0 T% W/ n8 X, a, p, x0 P7 Z
&dp2,, p. G2 z- E; T7 s
&var, F4 C9 r# M' a& F4 w1 G7 w &ei, 5 I7 N4 d: j' S* R2 o% C &uiErr); 0 {, O3 _8 a8 _& u7 a7 Q" s0 f' P& y/ J8 S' L% y
SysFreeString(topicStr); 2 }1 z- W& \! T/ }- p( K: @2 T9 q SysFreeString(itemStr); ! N7 Q# F) h, K a% P请问该程序是获得extend里面的哪个值? - k5 [- d2 A% t' Y; G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????