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:$ X) k j5 g3 n2 P* u* J6 Z
Name = (WCHAR *) L"Poke";/ Q: Q+ G8 r6 N5 c" \
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hr = m_pDisp->GetIDsOfNames (+ r: o0 U9 X, M& u- ]3 L" \
IID_NULL, // reserved$ I: d: Y4 {) r0 _; b4 s8 x
&Name, // Array of names to get IDs for / Q! M. d3 o3 K6 G3 h* H- n 1, // # of names in the array% H0 k" p) m/ r8 p1 T1 K
LOCALE_SYSTEM_DEFAULT, // System locale 4 R& E) f2 |1 N, B% t" m8 v &pokeID); // Array of IDs to fill on output8 T( e9 `+ w/ @; g+ e
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if (hr) * [& j! _* l/ k. R0 P {+ A# k+ h) k% P" J
MessageBox ("Get Poke Unsuccessful");+ _; c# k1 P+ v" M
return; 4 X# Z+ M) u. v& }/ |9 T } " I, ~. e9 b: c+ t& `. I/ z# v+ e8 B - v8 t, K7 j2 I% w* e1 ~* {/**************************传递数据给extend**************************************/# N2 R9 e* T' i& O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / r& [# r& E; o) d ; z# j1 {, C* q. x. M7 u
valueStr = SysAllocString((WCHAR *) L"1232"); o, {5 W$ R: z4 J6 m% B VariantInit(&pokeVariant[0]); 9 I/ D$ `( `' N# y# h; ?
pokeVariant[0].vt = VT_BSTR; # a' H i4 k; T, a' R2 i3 E& a pokeVariant[0].bstrVal = valueStr; - `0 i, x0 c; Y; i! @ ' t: F- ?% u$ N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) m( r" I8 n+ v7 X
VariantInit(&pokeVariant[1]); - w' \1 x) `5 v1 t pokeVariant[1].vt = VT_BSTR;3 I k6 j; a/ ^* }0 v
pokeVariant[1].bstrVal = itemStr;2 u D9 c* l. h9 z% Y/ w6 Y
4 g! p& g# ^1 o/ G; s. A topicStr = SysAllocString((WCHAR *) L"system");9 y8 K0 O' h( A
VariantInit(&pokeVariant[2]); ; n' B0 x2 l3 ?2 u3 D0 r" Y
pokeVariant[2].vt = VT_BSTR;. i6 C) l! d7 e$ x5 @
pokeVariant[2].bstrVal = topicStr; 9 G$ x, v4 [/ o& C9 ` 9 v# j, z/ K( x/ [// Set the DISPPARAMS structure that holds the variant. - k5 {- e/ n2 q. T; b4 R 5 N5 K; y1 @) | dp.rgvarg = pokeVariant; 7 i6 z2 f6 U8 y/ \) H4 `: k( @" ` dp.cArgs = 3; K& M. q: v1 _- c! K
dp.rgdispidNamedArgs = NULL; 8 v2 ^" Q- q- y( B8 l J dp.cNamedArgs = 0; & P2 b/ v& f* G" Z 3 Z. x# p- q/ N- D4 Y// Call IDispatch::Invoke()0 Z* h5 d9 \; d4 L
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hr = m_pDisp->Invoke(* i, o" X; N C0 O. G) d0 _
pokeID,( V3 u9 U$ h4 W7 S
IID_NULL, 9 p) D4 x7 C" A* v( E" {' V. L: e LOCALE_SYSTEM_DEFAULT, $ b+ S9 A$ k8 c7 a5 j0 b% X" _% H DISPATCH_METHOD, " }+ C3 a, d# S6 m# V# D &dp, 3 @- R/ [& G% S& h: n) F2 I# a NULL,1 k6 f4 X- X; j; E
&ei,8 u9 T$ g) M5 H' ?/ @, j: q$ I
&uiErr);. e$ P: g+ p o& k& ~# f
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SysFreeString(topicStr); ; ~0 J& {" P- I* t& r SysFreeString(itemStr); * C* L5 f" E7 F: y3 T u, X% @# H0 y SysFreeString(valueStr);) R6 A" O# L3 u9 P0 j( ?, H6 Y
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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???+ H- l' L8 @. |. h5 ?
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???? ! Q6 G+ h5 L: C) S9 N8 V7 |8 {. U$ J: r( J; u2 r7 X
' {9 X3 t+ R. z! t/ @2.这是request的程序 / F6 x9 }0 z) E. z8 Y6 c' j// Request a value from Extend+ b/ _' V$ a5 N4 \& o
// 6 s3 F* i( ]- S D/ X0 T// Initialize the variant that will hold the BSTR. Set the variant's , P0 Q" z. T! N6 N. b* I// type flag to indicate the fact that this variant holds a BSTR. Place the + s. S& `8 M' o/ ]8 s// BSTR into the variant structure. ' C5 ]+ h: l# U# j, Z3 Y9 ?5 C, F# w2 L# j8 C" p
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" B& k3 q: d( N
. [; S/ [0 L# K+ D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; D0 ]$ t1 e3 F VariantInit(&requestVariant[0]); / Q/ ^8 O Z d6 f3 D requestVariant[0].vt = VT_BSTR; k% O) L( Q! Q5 l* M& S
requestVariant[0].bstrVal = itemStr;0 e- A* m$ Z* P
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topicStr = SysAllocString((WCHAR *) L"system"); / `7 ^% B5 @8 Q' v1 r VariantInit(&requestVariant[1]); 8 N1 g, y9 K" b4 ?, ]3 @ requestVariant[1].vt = VT_BSTR; {4 _- }8 h. ]$ t
requestVariant[1].bstrVal = topicStr; 1 J Q6 Y5 ^- {# d' o F5 O7 _ ' |1 d. O4 W/ K0 u6 t7 B// Set the DISPPARAMS structure that holds the variant.( |0 X' ~( f( `- u/ c% @0 K8 T b
8 M( J, u1 m% z$ K dp2.rgvarg = requestVariant; $ k9 i) t7 A4 S dp2.cArgs = 2;- S8 C Y3 p4 T( c4 c1 R
dp2.rgdispidNamedArgs = NULL; 6 z. [. u' S/ v dp2.cNamedArgs = 0; : [2 u; j& a3 `2 D& C0 J8 ~" X4 e( o# S
var.vt = VT_EMPTY; ; g+ s, d7 F2 K5 |( F8 X' P- z . ~5 ]/ _! s' H9 D// Call IDispatch::Invoke() 0 P" C/ d4 B/ v# m+ e2 J; O, o9 o4 Y; A1 y
hr = m_pDisp->Invoke(6 V: V6 o8 N- |. h2 x( U" r
requestID, + `6 O- j% U6 [- q7 z IID_NULL, % V/ L$ k: w4 @ LOCALE_SYSTEM_DEFAULT, I6 @( F$ q' s0 d3 v DISPATCH_METHOD,- @* j9 ~) `! G/ G' p9 o T4 o8 x
&dp2,* H5 E/ n$ a0 X; k# b. b% h2 n
&var, ( b( f& P" n' S3 x: v) W, e5 I &ei, 3 s8 U" W+ @$ T$ U6 @+ \ &uiErr);" c% \2 T% v, Y6 }% b& N
. @7 i# e* S) M; z+ e2 ^' E SysFreeString(topicStr);7 ~ F% }, s0 r
SysFreeString(itemStr); % k% Q: ^: Z/ @ o, K请问该程序是获得extend里面的哪个值? ; {& P9 Y0 N1 @6 \( }6 ]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????