% {) ^# R L( b # F7 S+ ^' M9 ]" b4 j; O2.这是request的程序; U% C7 a' d {
// Request a value from Extend, V2 S$ q* N7 f t6 ]4 q" h
// % `: q! d' v- B1 v# Z' D" b// Initialize the variant that will hold the BSTR. Set the variant's7 `/ Q( W; [- A$ ?/ Q0 g5 a
// type flag to indicate the fact that this variant holds a BSTR. Place the ! F' V F, ?4 U" L1 ]+ D8 S// BSTR into the variant structure. : [1 d9 r D- m" U# }$ `$ \- `' p: c5 ~5 ]& P- U6 x5 K7 q! V
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 `( b3 J# {& \# C/ R$ K+ L$ {9 C( |
! M4 O" g, T. ?4 c: v2 q& ]* t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 W% u' y; v* R- F9 i4 F
VariantInit(&requestVariant[0]); . ]$ U# [/ G0 a4 V requestVariant[0].vt = VT_BSTR; ' o) @: r# Z4 d7 V3 x" y requestVariant[0].bstrVal = itemStr; + `, U% T Z6 q6 B7 P, Q9 z" r1 r# z/ T! e' V) x4 M/ |
topicStr = SysAllocString((WCHAR *) L"system");* G* b. s n4 g. G$ u+ |3 v
VariantInit(&requestVariant[1]); - W8 r$ O/ q5 r6 [( c, M
requestVariant[1].vt = VT_BSTR; 7 b: Y2 x" W! M5 \0 s M# B6 s requestVariant[1].bstrVal = topicStr; - h9 _+ W; Z$ _# Z7 ^- p8 @" U8 f9 m; ^' ~
// Set the DISPPARAMS structure that holds the variant.3 E. b3 H$ ` @" ~- |' `+ P
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dp2.rgvarg = requestVariant; 1 r; b0 z! A( q6 r0 { dp2.cArgs = 2; 5 v' m; L. e6 c: w! Y+ T3 |$ t# K dp2.rgdispidNamedArgs = NULL;0 R9 [' G c' k, @4 G
dp2.cNamedArgs = 0;& Z% P6 V% u; o0 j
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var.vt = VT_EMPTY;+ U8 c$ G( A7 P7 C