) L4 ^" G9 p% O1 U- t) `( O; W 7 W( R+ q+ M8 ?/ r. N2.这是request的程序 t% O# K: o1 M// Request a value from Extend # b) B4 S3 s/ N2 U& R- R//( k: \) m% X2 a$ ]) ]
// Initialize the variant that will hold the BSTR. Set the variant's + N0 Y6 j( I, h( [3 h6 N! u* ~; I# Z) a// type flag to indicate the fact that this variant holds a BSTR. Place the 7 R+ g: b* G% h8 L& D2 H4 ^// BSTR into the variant structure.3 k. Q6 i0 G8 x5 s/ w/ D
8 O7 S0 \5 h% r8 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 j2 C( k% d. s X% m/ `: l. Q
$ s) u2 U' W x' `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : o& R+ Y- M6 F* M7 F' o" o1 { VariantInit(&requestVariant[0]); " D; j( i& q( S8 e! g4 C" c
requestVariant[0].vt = VT_BSTR; ( W, d7 Q y& Z: x requestVariant[0].bstrVal = itemStr; / O+ I" `4 i4 c4 p- E" b / Z7 R1 G4 |6 I9 X N% c4 M topicStr = SysAllocString((WCHAR *) L"system");) ?; i1 Q2 D8 B9 q2 \5 ]& k4 w( a$ {# L
VariantInit(&requestVariant[1]); : G: Q9 ] m. ]& U8 s: y8 ^
requestVariant[1].vt = VT_BSTR;$ E: }4 [* V# W) A7 T7 u* g- ?
requestVariant[1].bstrVal = topicStr; ) }8 d6 Y! X1 L, A$ O I9 x) I" \/ s8 d9 [ ]4 Y& ]% ~3 ^3 O
// Set the DISPPARAMS structure that holds the variant.! f$ }% \% I5 B
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dp2.rgvarg = requestVariant;! u( c7 T* q4 K5 y; s
dp2.cArgs = 2;5 S9 K6 M# L$ I% O
dp2.rgdispidNamedArgs = NULL; 1 \4 V# K$ j3 O c3 `6 [ dp2.cNamedArgs = 0;: P) {% @: p1 v: n+ G3 K
& P' R1 Y) y) h0 { m" d4 `" v; e w var.vt = VT_EMPTY; 8 G+ y/ B g7 ^0 g$ _' Z c7 e" F0 Q( C+ ~1 }* W. ~9 Q
// Call IDispatch::Invoke() 7 H# H' |$ q: D% ^ / x% }; v/ Q* e- ` hr = m_pDisp->Invoke( ( M% o/ I, }1 _' ? requestID, 1 {4 W& \- h1 h0 O IID_NULL,, i+ `- Q: R0 r+ t% y- P5 Z
LOCALE_SYSTEM_DEFAULT, 6 e. F) X; `9 Y DISPATCH_METHOD," c3 x( u+ D7 G; K! h9 X
&dp2, * r& D& S$ y6 N" Z2 B5 a4 G. y- a &var,, F8 Z' h4 S6 T" T8 |
&ei," }) ]& Y/ E) s4 j Q( ~- Y4 H
&uiErr); ! s' o) I1 r3 N , F, @' S9 N* f2 B& w/ V SysFreeString(topicStr); ' L \- m2 H, [+ P SysFreeString(itemStr); 3 F$ s! a; m j请问该程序是获得extend里面的哪个值? $ G" a2 D: a1 Z8 }4 }# B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????