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2.这是request的程序; V, Z3 ~3 u Y B& m. W8 G
// Request a value from Extend / H3 U" X" |+ T; d& |; g// ' M% v" w" _5 ^( _" f// Initialize the variant that will hold the BSTR. Set the variant's2 I. X# P1 n' k5 A, [) \. R. \
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 }9 E2 X) {$ y2 c0 k0 \ b// BSTR into the variant structure. ' U0 I2 c: p- o9 ~* n w9 t( Z: I5 P! ?. }* A. U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! h. i& _2 y M6 K" e. ` 8 Y/ l, k% k4 t, G/ Z8 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& e! Y% J# U5 M- M& n* `
VariantInit(&requestVariant[0]); 8 a' O; f0 m6 B" q" m# B requestVariant[0].vt = VT_BSTR;# G0 q R' h7 E$ ]4 s/ C
requestVariant[0].bstrVal = itemStr; : c; }" a u% B! m$ Q( [ ; i: F) Z2 I; e- T5 H topicStr = SysAllocString((WCHAR *) L"system"); j( ^) s7 Q( a5 F a) e/ x8 A. L VariantInit(&requestVariant[1]); / \0 q0 J- Y7 T' z
requestVariant[1].vt = VT_BSTR; 4 I& w: A: H$ c6 j requestVariant[1].bstrVal = topicStr; & x1 J4 d f: E ^ . X" D+ H& H( W8 j! D, u// Set the DISPPARAMS structure that holds the variant. . p. \# Z- J" x/ k5 W' O H! { 1 x0 @9 V/ ]3 m, D/ w3 I/ ~" W: A dp2.rgvarg = requestVariant;9 W3 m3 x- B* j5 p \. M, f; O
dp2.cArgs = 2; 5 A# g+ [, j1 O& ^ dp2.rgdispidNamedArgs = NULL; % M, c m0 D& S4 q0 R; q4 y6 z dp2.cNamedArgs = 0; 1 v& Y0 w V: }- j $ E6 T3 p! P( L" }8 P. e0 m var.vt = VT_EMPTY;: H" n$ d& e6 b3 A, K