, m; ^* a/ Y. Z" C8 h1 u x , X, f) ?1 y) _. m) w2.这是request的程序 & q- V+ n" o& L+ \- ?9 m0 \// Request a value from Extend a! {! b$ x+ ? R8 W) Z//9 {: l' i1 t* l" F, |$ U2 B
// Initialize the variant that will hold the BSTR. Set the variant's - a. Y2 \7 M& y" r( i' J+ ~% E" f// type flag to indicate the fact that this variant holds a BSTR. Place the/ S* T) |# K& N3 e5 {
// BSTR into the variant structure.8 `; C, o" d! x$ |
1 _- ]7 s- p: L9 U% y" h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 q7 y# o" h- E7 ~- t 5 @6 T6 J% I5 \/ P; r/ r( A! [6 T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) i5 G4 i1 h8 Q) t! ^# { VariantInit(&requestVariant[0]); 9 t6 C/ e7 M+ h# c9 \
requestVariant[0].vt = VT_BSTR; 0 M0 }8 `9 f; s/ Y! z' d requestVariant[0].bstrVal = itemStr; 0 o& a4 T9 S& D8 m% n- W, J# n4 y, W2 }4 B' A
topicStr = SysAllocString((WCHAR *) L"system");. e1 m: ~: r" _- `# g
VariantInit(&requestVariant[1]); & i& a1 O0 w/ n' u
requestVariant[1].vt = VT_BSTR; J2 z+ X: i' [2 ~7 u; Q
requestVariant[1].bstrVal = topicStr;; i& [" E: I. T2 n9 f
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// Set the DISPPARAMS structure that holds the variant. 2 [$ o7 d! c+ V! S$ c6 \! O6 |6 |; V# D
dp2.rgvarg = requestVariant; N# h( w2 q4 ]: s$ f* e: v6 J
dp2.cArgs = 2; 2 H: O" [3 p h" M dp2.rgdispidNamedArgs = NULL; / o( A& I' [0 G dp2.cNamedArgs = 0; [6 V8 `( H' n2 B
& a8 I7 k' F- c' i, W" ~ var.vt = VT_EMPTY;, {* s) L( }8 [
7 k2 [! {* F# k2 E6 A// Call IDispatch::Invoke(); N* u% W E8 o- q( F7 F! h! b