6 O% n9 M4 P: y/ l1 a: f. ?! y( ], k# D& Y( v6 b5 d- l2 U( {
2.这是request的程序 + X* ~3 j* t, Y1 e& s& e// Request a value from Extend 7 F8 g4 m4 r7 m' F" A4 l// ( b0 M' c4 u s0 I$ R// Initialize the variant that will hold the BSTR. Set the variant's5 T5 g7 `5 r' q: W1 \: g' d
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 p- L" x" y5 w' H// BSTR into the variant structure. 7 q( r, {% }% Q1 c 3 A s) l2 O* ~; M requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! W }0 V: E, z, D# Z# d# k 6 j; C( o$ S$ q: |2 t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + _/ o$ Q& L7 t, s/ m VariantInit(&requestVariant[0]); 1 R8 d- b+ K) H# m8 D9 j% W requestVariant[0].vt = VT_BSTR; 8 A, G, j G. N" M, [) }. b4 F( f) K requestVariant[0].bstrVal = itemStr;) Z" J5 i' T& {+ w! @% F% x
% N9 W- t+ L2 |! U topicStr = SysAllocString((WCHAR *) L"system"); 7 z7 n( v4 u7 H, h, x! S VariantInit(&requestVariant[1]); 6 T, p) f/ `& _2 g) { requestVariant[1].vt = VT_BSTR; * ]1 I5 Y3 d: i( I8 z) B" s' k requestVariant[1].bstrVal = topicStr; + M S; P7 {3 g% x# v" y' O + r( |* @4 r o2 ]// Set the DISPPARAMS structure that holds the variant.9 X, F; b2 r* {3 {
" R0 v! w1 I; u2 v9 } dp2.rgvarg = requestVariant;) |% \( f( M' r- w+ i
dp2.cArgs = 2; - a" j f% Z M/ m h dp2.rgdispidNamedArgs = NULL; $ G: ^0 r, u5 g9 r" s dp2.cNamedArgs = 0; # u& k" a# d' ]3 b; L$ x7 r! H * u z. w" k7 u- C var.vt = VT_EMPTY; @" f9 X3 `8 Q
% }! l9 W0 E8 y( X3 X( |& l
// Call IDispatch::Invoke() # d, | d4 I2 D2 S" ~% s/ D: D ' _5 {. V4 z6 z9 e+ d0 ~" M hr = m_pDisp->Invoke( 9 a5 Y3 Q4 o2 ^- B9 ^* n" A requestID, 4 O; I7 j, Z8 O% e# f) z: \ IID_NULL, % C1 h5 h- a8 C8 w( K6 Z3 j9 K LOCALE_SYSTEM_DEFAULT,: S. J7 M" a9 p4 r
DISPATCH_METHOD,3 s# ^. Q, Y; u" E7 o2 n( z/ ^& Y
&dp2,/ t. ~$ w+ E/ C( H# @1 D
&var, 2 J' y$ z+ w9 L& g+ i, P$ @ &ei,+ T. Z3 Q7 S% d- L2 V) E; m3 M" M, J
&uiErr); ; ?& f5 V, s' T) B" r : g z' t, c/ E% ~8 o: o7 X, y SysFreeString(topicStr); ( j, ^1 V, d$ j; w9 l0 F" w: g SysFreeString(itemStr); 5 O0 ~5 i6 f$ M# X5 g请问该程序是获得extend里面的哪个值? 4 Q. A( c& }4 `" X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????