5 o. d. f1 y: Y0 _5 `2.这是request的程序 7 C2 D% d6 U/ F7 u0 Q( @& w9 H// Request a value from Extend4 {5 o( }8 a) P8 O; N+ y& J7 q6 g& v
//( Z0 _2 B% M3 J0 E- Q3 n+ o# k2 H
// Initialize the variant that will hold the BSTR. Set the variant's " w, Q+ r" h" l4 z0 H// type flag to indicate the fact that this variant holds a BSTR. Place the. O' u& e9 _1 ~& K, F0 x% t3 _
// BSTR into the variant structure.+ @% J1 ^3 ?5 X/ `! N2 l# U6 o
2 t" q; {. T, D5 p requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 ~& `7 D: i4 `' \) S # y0 D: s5 Z7 H) Q6 g& w5 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , ?8 J8 D# [% q1 _% [* B9 e3 f' e VariantInit(&requestVariant[0]); 6 f! s$ N; |) A9 s. H. a, q) A
requestVariant[0].vt = VT_BSTR; / j* f- Z: r' \! g7 J S requestVariant[0].bstrVal = itemStr; 4 Y* N# p& Z7 G) G4 S& X0 l 4 K3 Q3 F" a9 ~# f/ f topicStr = SysAllocString((WCHAR *) L"system");# r0 W) i C6 P: }; ^' ^
VariantInit(&requestVariant[1]); ' _1 a( ?: \- v. I8 ^7 d9 M- z requestVariant[1].vt = VT_BSTR;# v5 |, b; Q0 u: ~: i
requestVariant[1].bstrVal = topicStr; : P. l; `9 b- H$ p- A - q. {0 G2 w1 @/ ]// Set the DISPPARAMS structure that holds the variant. 7 m6 R! f0 `! K* P- L ! p) G( a- H" P6 m: S( w dp2.rgvarg = requestVariant;: J: X i/ N2 z7 ^
dp2.cArgs = 2; - w- b2 D6 o* Y: i dp2.rgdispidNamedArgs = NULL; ! D. O- X: j6 s dp2.cNamedArgs = 0;/ H3 {! c8 r* \+ \3 h
: R! V9 Q5 P3 r! k* `+ O8 j var.vt = VT_EMPTY;9 E6 Z) c- W# Y r$ V; S4 ^
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// Call IDispatch::Invoke() 9 I8 v/ Y% K7 ~9 _0 A' ^& i ( I" Y+ |# o; r8 T" |" b hr = m_pDisp->Invoke( 5 _5 d. w+ q! Q ?% ]! ` requestID,0 ]( i" T1 s5 m) D- F+ p$ w
IID_NULL, & l, ], @7 N; _& j( r4 z- c0 Y- t! ~ LOCALE_SYSTEM_DEFAULT,! I$ o2 K; W5 z+ I1 U3 o
DISPATCH_METHOD,/ W; [9 I- [' N6 i! Q2 c. C( r
&dp2,5 }( H3 ~/ {* _$ y
&var,8 S9 ~7 ^" F8 f2 _! C+ Y# \
&ei,7 j, D0 `6 q$ o& C4 e8 Y7 ^
&uiErr); ' V# h2 d/ r( l" \' M $ a" C: e7 r9 Z SysFreeString(topicStr);! e' S/ o5 }( H; Z) I1 y; t
SysFreeString(itemStr); ; |1 F( v3 _5 {. _% n6 x: U请问该程序是获得extend里面的哪个值?* O5 l8 Y; |1 W% C4 F) r
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????