8 D h1 K' H. V0 }2 Z4 u' K& K6 u y2.这是request的程序1 _1 D; `+ F1 @, P5 I
// Request a value from Extend& K0 j% _5 J& o9 F( l
// 5 `2 |) @1 O X$ ?+ H; Z( i// Initialize the variant that will hold the BSTR. Set the variant's" Y# Y! u) x7 t/ V
// type flag to indicate the fact that this variant holds a BSTR. Place the# R! }) e& H+ m* }4 x1 [) r( ^
// BSTR into the variant structure. 2 a! P6 f# u' V H, L2 \! H$ G8 N1 {, G" U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : i5 l/ Z2 M/ g; E. f - \" {7 E# e0 n, z$ t: w7 C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . _, k& u, P7 b& m8 i VariantInit(&requestVariant[0]); % Y5 K3 V2 j" G" w* H+ r% n" @# n! x |
requestVariant[0].vt = VT_BSTR;& R. u4 C W0 }3 o" @# M
requestVariant[0].bstrVal = itemStr; / s" H c8 x% a2 a( } b( @ : d6 z4 V6 ]; M ? topicStr = SysAllocString((WCHAR *) L"system");" ~! c) [- U2 a: ^5 @3 b
VariantInit(&requestVariant[1]); : ^5 h' e# p: s* U
requestVariant[1].vt = VT_BSTR;& M0 f% p3 ]# l. E$ [! V* q
requestVariant[1].bstrVal = topicStr;) [4 g1 `( g- D% R( I8 S
1 r3 y( L$ P0 b1 A// Set the DISPPARAMS structure that holds the variant. / I q5 B# E! {" v9 P+ ~ ; y' g+ ~ w- Y" }7 @) s# y dp2.rgvarg = requestVariant;2 P2 U9 Y, Y5 L- n, _/ X
dp2.cArgs = 2; 7 Q* I$ J$ _& ?3 Y" [# u% b dp2.rgdispidNamedArgs = NULL; 1 Y9 Y- y9 n: B7 O. J4 g( T7 x dp2.cNamedArgs = 0; 5 L6 B/ {6 c6 b& c , e9 w; E) X A, E var.vt = VT_EMPTY; * |9 L/ @: b) u- ` $ g1 ~* H( c' B' I B// Call IDispatch::Invoke() * x/ i: p$ ]; g6 k- t5 `# J4 N+ Z' Q' r) I2 W; h
hr = m_pDisp->Invoke(' c* v) r9 X6 O* |! ^9 }
requestID, d! E, y8 T6 s& H4 h& s
IID_NULL, : Y8 E" K4 t0 q4 O2 W7 D LOCALE_SYSTEM_DEFAULT,# X& S" k" G' F D% q
DISPATCH_METHOD, : [8 s5 y3 P2 X &dp2, - r2 a3 }% m9 P& i3 {8 c8 L, v &var, - X) Q; }& ~! W9 D; ^3 F% U &ei,( o9 k5 a$ c3 x% I& t
&uiErr);) Q7 @- Z2 s' R. f