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2.这是request的程序$ y4 P( c. C0 E0 R% g$ @/ a8 w
// Request a value from Extend / w& R, P3 w2 f! ?0 Q9 g) E//0 ?- {0 H: c' S2 e
// Initialize the variant that will hold the BSTR. Set the variant's 8 h6 a( d5 L( V7 L5 t" o% t: \4 G, f// type flag to indicate the fact that this variant holds a BSTR. Place the7 s* a! O$ a8 U i: o8 A
// BSTR into the variant structure.$ g/ X1 y7 P0 j/ l! M+ m
+ A G# i% D2 L! q8 I8 m6 m requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) I; L `) |5 s" ~; ^4 I 2 i9 v; _$ K2 d4 d8 C9 A& k- W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 ]4 Q; r- O! c- y4 P0 I VariantInit(&requestVariant[0]); + Z8 W( F2 E* H- O; n t& H$ t requestVariant[0].vt = VT_BSTR; 3 G, {( `2 `# | d) N/ u! _ requestVariant[0].bstrVal = itemStr;6 { L- H' K3 l" w
2 v5 Z: R3 k8 ?! h topicStr = SysAllocString((WCHAR *) L"system");; z6 b5 Q6 r, Q ~! k
VariantInit(&requestVariant[1]); 4 b5 q; m1 u) d% a, \7 V requestVariant[1].vt = VT_BSTR; ! N F' b1 B4 y- o8 i8 G requestVariant[1].bstrVal = topicStr;& Z+ x9 c9 Z& r( @
. x1 O' y* ^) i// Set the DISPPARAMS structure that holds the variant. - G" M9 u7 ~; i |! R- U) {9 c* u6 Q1 X0 x
dp2.rgvarg = requestVariant; * _% h$ w9 ~7 V4 y6 L: f' q; o dp2.cArgs = 2;* o( U* G7 m/ O$ r: V, {
dp2.rgdispidNamedArgs = NULL;5 O# C& r4 f9 @1 z
dp2.cNamedArgs = 0; & w. A) N0 u0 G" w1 r % q$ X4 z* @) D$ ?- D& Z1 h) h- W var.vt = VT_EMPTY;% G; p5 B4 @% B, n" V
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// Call IDispatch::Invoke() . j- n2 \/ {# T' b3 \" c4 |8 ~+ E) | 7 L6 {7 c% M+ i+ G# G1 H hr = m_pDisp->Invoke(( F! u; _& x# ?3 b8 {( L
requestID,/ Z6 P) r6 g" i' E
IID_NULL,1 p2 x6 \# S+ I6 X
LOCALE_SYSTEM_DEFAULT, , ~; C- O; j1 n$ J- k DISPATCH_METHOD, 5 q; ?+ q$ z; o% h% m% Y$ @1 \# v3 z &dp2,) k. e' F3 f9 ~0 |
&var, ! g" q m# b- {% C ]/ F+ x &ei, 1 a& w9 k5 c; X &uiErr); 9 c& z# `7 w# s3 m0 e: ?) V 5 _5 A/ l1 ^5 H6 I SysFreeString(topicStr); / T6 {5 Y h/ m, h3 v8 K5 ^ SysFreeString(itemStr); 2 _6 E! y& Q8 K/ ]% w请问该程序是获得extend里面的哪个值?4 Y$ o. L* y2 b8 \; w5 d" |" E
如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????