* T1 o# B; }" _$ z D. b: N( V2 q4 J. [! V# _8 _ K2.这是request的程序 7 n# {/ | v) p1 B! I// Request a value from Extend' e; k8 C# ~3 a# `+ z
// 0 u4 l: p4 v; E// Initialize the variant that will hold the BSTR. Set the variant's : \# j1 C# l4 u+ [0 T3 E// type flag to indicate the fact that this variant holds a BSTR. Place the2 p' Y) F. W0 A+ f- N5 Z! L0 ]6 M& B
// BSTR into the variant structure. : i& C( x1 }7 s6 t 9 q5 W5 |( `1 L% ^8 s1 [ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - I/ r! G" R+ h) U+ X$ z ( {8 `% t$ o7 {- J& B3 F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 f5 N* `5 V' _0 G1 Z3 i8 _5 S" b
VariantInit(&requestVariant[0]); 1 F. r/ v( n5 W
requestVariant[0].vt = VT_BSTR; 4 Z. n' R* M3 Q" S! U' W requestVariant[0].bstrVal = itemStr; 4 F6 {. s/ r2 ]6 o! e/ H" `- u# {* j. E5 Y
topicStr = SysAllocString((WCHAR *) L"system");; D# V+ B: N( @, G( K' n. w# X
VariantInit(&requestVariant[1]); , c. H4 c' [( V ?9 ]
requestVariant[1].vt = VT_BSTR; . ]! Y. v; [/ v. G/ _# Z' ~3 ^" n requestVariant[1].bstrVal = topicStr;8 O8 A7 G( S2 Y% U8 L/ Y
+ K: u# d: {1 w; u, ^// Set the DISPPARAMS structure that holds the variant.4 D7 q4 i r8 A0 X" J) O `
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dp2.rgvarg = requestVariant;0 F; z t- X+ H" h/ d
dp2.cArgs = 2;) S0 v. U& }) y5 H
dp2.rgdispidNamedArgs = NULL;( M. y0 P9 s) N0 V+ O4 K& [
dp2.cNamedArgs = 0;* H& g; \$ {1 q$ t' l
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var.vt = VT_EMPTY;5 u" ]" @# H' \$ u- N
3 ~4 Z1 k. X0 F// Call IDispatch::Invoke()' g9 R8 S4 {/ U. A1 }
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hr = m_pDisp->Invoke(! \2 B. _! N m) F4 C0 A9 d
requestID, $ Z/ l, d; J2 Z* i( E IID_NULL,# v" Q* a/ B/ }- b o. L- P8 k
LOCALE_SYSTEM_DEFAULT,# D5 q0 z. x9 v3 L
DISPATCH_METHOD, ! C, S) r3 x X; }, O2 N5 N% K; N &dp2, 1 D; U+ Z+ \$ m! D G &var, 6 O5 p6 L1 D% X/ X2 t3 H &ei,% s$ _4 W" N( K$ F
&uiErr);+ o( H4 L9 D0 c' r# Y; `9 D
" M, E& _/ y0 N2 I9 W4 O4 B1 t! y
SysFreeString(topicStr); $ K1 ^$ v/ N0 p1 O& V, B SysFreeString(itemStr); 2 U8 Q' P& z% T( v4 \' I请问该程序是获得extend里面的哪个值?3 T4 X+ G. _3 m
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????