我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: ' S. x \0 y: j0 \. c* e) P3 DName = (WCHAR *) L"Poke";, X4 `7 j2 W7 H: I
8 X0 Y( r. ? B% R hr = m_pDisp->GetIDsOfNames ( M; o( @7 G4 q; V: ` IID_NULL, // reserved% q9 Q, c* ~8 q
&Name, // Array of names to get IDs for p* m: |- K2 p/ G E 1, // # of names in the array: ~$ K5 Y3 p2 b9 |
LOCALE_SYSTEM_DEFAULT, // System locale" T+ T5 [- A( b& T
&pokeID); // Array of IDs to fill on output M/ e3 x/ { M$ j. I
! X3 W8 r+ b7 g if (hr)! F& G C+ w2 T8 s
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MessageBox ("Get Poke Unsuccessful");4 l. w" B2 G7 x
return;* P. y: Y7 E: Q# }4 ]% N2 m7 @
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4 X- _4 Z1 E6 G b6 t1 _% R/**************************传递数据给extend**************************************/5 } N" m" s7 t1 V. _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 Y! m% N9 f* L( W2 _ - {7 U; _) A) z: Q6 J5 e2 \
valueStr = SysAllocString((WCHAR *) L"1232"); 9 l) A3 `9 d7 t2 { VariantInit(&pokeVariant[0]); + C, ~. d$ V0 F& b0 h pokeVariant[0].vt = VT_BSTR; 2 D, ~1 \8 c5 f* B8 ?8 z pokeVariant[0].bstrVal = valueStr;) Z( `% D" z( g" N ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! c. I. v9 c, N* u q) q5 w0 Z VariantInit(&pokeVariant[1]); 0 ~ X0 E6 P Y. c3 Q* }# x9 ] pokeVariant[1].vt = VT_BSTR; " A0 @6 d' X* R- W2 y- d; h* B pokeVariant[1].bstrVal = itemStr; 9 T& u/ {: C# t8 n 0 e5 z& a) ^, a2 {+ j. W( Q topicStr = SysAllocString((WCHAR *) L"system"); 7 X% b2 i4 V5 N) n( i; M; W; y. [ VariantInit(&pokeVariant[2]); ; j! u# f, A* R. v* j3 L pokeVariant[2].vt = VT_BSTR; 6 ]& A% g* L5 c3 X& y3 G pokeVariant[2].bstrVal = topicStr; 4 t/ M$ A" v. C: C& f1 F/ m# B$ ^! Z9 _
// Set the DISPPARAMS structure that holds the variant. 3 f7 U9 R* p/ G P7 F9 O3 Z" \7 R! G + ^8 F P6 ^, H0 ]6 B. o& z8 n- ` dp.rgvarg = pokeVariant; 7 f" O7 v- L$ _ m4 H dp.cArgs = 3;& ] C/ R v0 `! A7 N/ E: K
dp.rgdispidNamedArgs = NULL;, V- A5 v0 N9 q1 V4 |+ t0 @
dp.cNamedArgs = 0;* u0 n! ?4 @5 o' V+ v
1 x$ ]5 ^1 \* r: D SysFreeString(topicStr); ( W. \/ k. d4 N* [2 ^5 f8 h7 e8 u SysFreeString(itemStr); $ p. F9 _3 c& o( l8 {5 @& m SysFreeString(valueStr); 7 A2 _1 |. a) N: f1 r . V* V7 @+ _* c, x现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? 3 p, G# S( s; {此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? ( t( ~# N6 d+ s. y/ X1 Z6 U) B5 e6 L0 w9 \* Q( R; _+ T4 H
s% E( i: {; h. R2.这是request的程序 4 g/ y/ Q5 ~ i- c' b/ c// Request a value from Extend ) ~% k! b/ n U" }( _// " l& D2 \& g; Z// Initialize the variant that will hold the BSTR. Set the variant's i o. _# o, k8 ]! {; W% n3 F
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 A' V* o5 z# i5 d// BSTR into the variant structure. P1 x ]( ]& i5 E
9 z w+ K0 ~# X6 `, H$ {7 l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ A+ t3 w' @2 ^: e# F+ ~& z & E5 K4 V' F$ p* H! c' W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% O% R" S( [& ~- G- i5 Z% k2 L
VariantInit(&requestVariant[0]); . k! i t# I/ d* e
requestVariant[0].vt = VT_BSTR;, N/ j3 r5 R; f6 T$ M* _5 @1 C. h
requestVariant[0].bstrVal = itemStr;0 U8 n% ]" r" t& B, Q
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topicStr = SysAllocString((WCHAR *) L"system"); 7 K+ I: R( j1 [ VariantInit(&requestVariant[1]); + b! S5 k0 W; o& N- F6 [
requestVariant[1].vt = VT_BSTR; + ~; t5 o: c4 J }$ D U1 L requestVariant[1].bstrVal = topicStr;% j* R9 Q/ g9 o+ G# Z
7 q0 U4 I: T; V# i% X9 B// Set the DISPPARAMS structure that holds the variant.* A/ h; W% ~8 N; |& x
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dp2.rgvarg = requestVariant; 4 C% Z) C, M: S- r& Z0 d dp2.cArgs = 2;5 G" j0 l' [6 [# a$ [& O
dp2.rgdispidNamedArgs = NULL; 4 d% @4 e1 |( E4 g9 y8 }( r% M dp2.cNamedArgs = 0; - u) I# X+ ]: n$ o' [2 ^4 ~ 0 ~9 |( Z4 b/ d, r" S var.vt = VT_EMPTY;9 e% b/ q& ~9 E4 _+ L( Y7 R) o
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// Call IDispatch::Invoke() : U1 ^( f6 B( X- @# `2 I* d# B$ D1 ~" `
hr = m_pDisp->Invoke( & ?! m$ u7 {" o$ o requestID,8 j- d+ f1 P- M2 }. U
IID_NULL,( b" G; [& f. n, V: w+ a: N
LOCALE_SYSTEM_DEFAULT,; x. O P6 ^3 ]# |) p; e
DISPATCH_METHOD, / g% T/ j; ]) D' a1 Z# Z" s+ k &dp2,# U, B: e/ S& f" e3 y1 N9 c
&var, ; B+ K: B* X8 L X9 N &ei, 8 d7 ]$ m: @" Q &uiErr);0 i$ B$ q [, r w5 G0 z
$ d* p/ f0 @' h. C* P: ? SysFreeString(topicStr); 8 J4 d" ]% j" P3 g: d* w2 H7 I8 ^ SysFreeString(itemStr); & U2 ~; ?* j& J( }0 F% x请问该程序是获得extend里面的哪个值?: ^, [# [! P |* Z7 o
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????