# S" n4 x6 b7 H% m 2 M% k( }, a% N4 B2 _% t2.这是request的程序9 ?+ J2 l! K( s0 N1 u8 r
// Request a value from Extend" ]9 k1 I& a4 [) S/ c7 u8 ~
//: ]0 z. p* n& U1 o8 Y
// Initialize the variant that will hold the BSTR. Set the variant's7 r$ z( A9 f; s- Z
// type flag to indicate the fact that this variant holds a BSTR. Place the; o' n0 v/ F) J) X
// BSTR into the variant structure.3 ^/ J+ P! ~( W) O5 d' v- b
, v2 A) S5 c) I. o D0 h1 j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 q t6 _& z/ V, B* ]5 V
: i/ \- x6 A5 ?7 ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , \5 ~2 J( Y1 N( P D VariantInit(&requestVariant[0]); ( x' J) [! }# H ?
requestVariant[0].vt = VT_BSTR;! j" n# P9 ~# x/ l/ R0 Z, C
requestVariant[0].bstrVal = itemStr;/ E& r4 M" Y) Y
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topicStr = SysAllocString((WCHAR *) L"system"); v. Y* ]6 A% T- l$ C
VariantInit(&requestVariant[1]); " R# v. s. O# \2 m3 B2 w
requestVariant[1].vt = VT_BSTR;: F- o% p! @6 {' x9 B
requestVariant[1].bstrVal = topicStr;5 m/ D, A* U6 G! _
7 K; k' k/ C+ p( w: ^/ e% r// Set the DISPPARAMS structure that holds the variant. 4 D i8 C( a) |/ H2 I6 R p) [9 x3 F# n3 a% _' ]8 n
dp2.rgvarg = requestVariant;! @8 X8 s5 C3 a" ]( A$ M
dp2.cArgs = 2;3 M/ m5 G! L* F1 n7 ~( j9 n2 N
dp2.rgdispidNamedArgs = NULL;& {: Z0 Y+ w/ v: P* y7 X& e/ @8 I
dp2.cNamedArgs = 0;+ U! [ m! u+ m7 f
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var.vt = VT_EMPTY;' U. N ], \3 m* Z