+ W b6 U2 _3 {+ H X2.这是request的程序 3 O3 }* W! |$ x; m// Request a value from Extend" x- m/ V' k- c+ P/ V+ e2 u2 h
// $ w" [& X% b2 w9 F# j// Initialize the variant that will hold the BSTR. Set the variant's+ }4 v; P7 j, D7 `! M8 u# ?3 F
// type flag to indicate the fact that this variant holds a BSTR. Place the/ p9 P# Q& [ L- |- V
// BSTR into the variant structure.- m9 O- a1 z* E; S$ Z
+ e/ A$ p ?5 i8 k. z" R0 u. H; t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# o' g5 q, a+ O e4 R! ?! o
9 b+ d# ^$ K* T0 c# d1 {' ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ V+ e6 r; u! i/ y* p7 r
VariantInit(&requestVariant[0]); 4 }/ [' J2 V! ]* z/ d, I: G
requestVariant[0].vt = VT_BSTR;8 L9 B3 V# U) `$ l# f
requestVariant[0].bstrVal = itemStr;! i7 ? T! H1 a
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topicStr = SysAllocString((WCHAR *) L"system");" o. e) T0 `3 g) H
VariantInit(&requestVariant[1]); ( A9 B3 F$ {- l9 F
requestVariant[1].vt = VT_BSTR;+ w9 {$ T# H0 X! ]
requestVariant[1].bstrVal = topicStr; 6 l7 t2 d. d. V7 F. V7 n/ U4 B1 r0 M; z$ A. @
// Set the DISPPARAMS structure that holds the variant.0 f. x Z" S9 `; @6 c; Q" R
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dp2.rgvarg = requestVariant; 8 {: f( {2 E- x) W dp2.cArgs = 2;/ u9 K& m% H5 \+ Y
dp2.rgdispidNamedArgs = NULL;) N" {+ p3 U8 w0 |
dp2.cNamedArgs = 0; 9 H/ n$ r4 V5 a/ u! O/ k8 E, q9 {6 o/ g: Q0 s+ J+ D6 L
var.vt = VT_EMPTY; 1 A& T4 w( t8 ^! Y1 d' K. p9 Y5 P% q y5 h. \/ l8 S
// Call IDispatch::Invoke()! a+ c q2 |) D2 J5 K1 C. J$ W* |' x6 L