& W+ O( i% \. @+ f# o1 m8 s2.这是request的程序 # H7 ^) w' z$ i6 z// Request a value from Extend 7 `* h5 w( v8 o; h) }) v0 a// - t$ G4 r6 @% e( w' o/ H// Initialize the variant that will hold the BSTR. Set the variant's8 J& t9 J1 e3 o) ]8 p$ w4 ]
// type flag to indicate the fact that this variant holds a BSTR. Place the $ M4 j' i/ z* n( k; G0 j8 Q" i+ p J// BSTR into the variant structure.+ M- u2 @$ ?) y2 C2 x( r9 Z
/ [. t' h1 x1 f% l* ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ w: e! u0 N m5 y& i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * ] E: V/ E6 Y' C u6 ^* {& Y VariantInit(&requestVariant[0]); 0 y% ?" C+ W2 p u3 q4 ]/ X: a
requestVariant[0].vt = VT_BSTR; ; j$ p( A8 d& b' Z s% ` requestVariant[0].bstrVal = itemStr; 1 [: x" d" g2 g9 _6 v$ O# y1 E7 o ^7 W
topicStr = SysAllocString((WCHAR *) L"system"); : O$ A0 v9 v) H! r VariantInit(&requestVariant[1]); $ X. f' \ ?7 f requestVariant[1].vt = VT_BSTR;( J: s6 [- |5 C4 Y
requestVariant[1].bstrVal = topicStr;; k5 Z0 }+ _2 s) K- I
5 P/ n# ?+ W! N// Set the DISPPARAMS structure that holds the variant.5 k, q+ O% P3 N
. A' j, O# X W4 u- V( x$ K" g dp2.rgvarg = requestVariant;- L" O- E2 E/ G# a+ O7 ~
dp2.cArgs = 2;1 S& T& k8 H) q& X c2 I
dp2.rgdispidNamedArgs = NULL;" p% C3 N# i9 ^" M( i
dp2.cNamedArgs = 0;0 `4 L& s! W1 {0 v