1 L( K" M! ~) t5 Q! A) Z j 6 `7 J0 X( D: r3 e+ v# n7 Q2.这是request的程序" p3 U0 \, w1 |4 Y, Q# W6 I
// Request a value from Extend3 u* l, G9 t+ U4 f) ?4 F2 [
// 6 h3 V3 f- J' k' f3 @( _5 {3 V// Initialize the variant that will hold the BSTR. Set the variant's3 y/ v! c Q6 |' N1 q& X5 Q
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 ?' Y d7 |2 e" N) i5 `// BSTR into the variant structure.: b' B. h) U8 F0 C) f7 f
7 @6 n# a U, j/ U X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. s* C; z N9 G9 ]7 M
2 ?: Y/ X/ ^$ S# @& l/ s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ^3 n4 i5 G: ]& {
VariantInit(&requestVariant[0]); 3 g* B$ }$ P" c7 E2 `6 } requestVariant[0].vt = VT_BSTR; ' Q" X# D; O) R+ ?* B requestVariant[0].bstrVal = itemStr; " Y0 Y" b& ?" j2 Z. Z8 J# R1 ?$ e, a: j0 N- k
topicStr = SysAllocString((WCHAR *) L"system"); - N' g* J& A: y1 g e VariantInit(&requestVariant[1]); ' ^% ^) Y# d3 J requestVariant[1].vt = VT_BSTR;* @6 i/ v8 u# c0 {% D C( ]* _4 I/ T
requestVariant[1].bstrVal = topicStr; . J* z+ L4 G! {4 K2 @5 \ 8 Y* K9 [) H+ r. ]// Set the DISPPARAMS structure that holds the variant.1 A+ @$ w5 \) Y) ?1 u. h `
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dp2.rgvarg = requestVariant;' }8 C+ T1 ~( c8 B7 _* X
dp2.cArgs = 2;2 j! l1 v5 A8 q" [6 f; j& z
dp2.rgdispidNamedArgs = NULL;) Z1 G* M0 o7 O. ]5 G9 ^& e# L7 _. J
dp2.cNamedArgs = 0;# Z6 u: a+ N% y$ ?