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: 6 J6 w, Y9 v# F1 g0 g6 }Name = (WCHAR *) L"Poke"; ! W* x* } V5 B. ?, N& C ! K& J ~6 e- |6 U: c! u
hr = m_pDisp->GetIDsOfNames ( $ b) T- `3 A* T, L; ^1 b% {1 \' ]$ | IID_NULL, // reserved " g! y& ^5 @/ `1 S) S &Name, // Array of names to get IDs for ' _/ B9 ^0 Q% |/ E/ Z# s 1, // # of names in the array 8 |; T) I" A2 d6 x$ V LOCALE_SYSTEM_DEFAULT, // System locale 7 R9 N- u; Q% ^! R &pokeID); // Array of IDs to fill on output ( X/ E: U: ~ c8 x P1 r) ] 7 E" R* B- ~ t& }( m5 a
if (hr) 4 W1 t" ^5 x. W& K9 U5 n1 S { 4 I2 i; x8 k$ N0 { MessageBox ("Get Poke Unsuccessful"); O& f( o; e+ t X. g
return;( Y5 {/ D. M5 S+ C& O1 A5 T
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; C& w+ [% X7 V. C7 ^, q/**************************传递数据给extend**************************************/7 Y2 ]+ U5 }, _. ~! x8 [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ B. E0 V6 l5 X" I
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 }1 |! n8 k9 L8 U. |' U VariantInit(&pokeVariant[0]); ( P7 r% H3 v9 f+ h# _9 u3 {6 ^ pokeVariant[0].vt = VT_BSTR;3 [2 ^: y, h, D& X. s
pokeVariant[0].bstrVal = valueStr; ; b- e1 H( i2 R! |6 `9 M - ?/ J5 d" f7 @$ o4 ]4 k# T$ h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 x4 \' O# e4 q. v+ Z2 j
VariantInit(&pokeVariant[1]); / l$ s6 f1 A( W( s pokeVariant[1].vt = VT_BSTR;1 r% W! S* M5 ~/ p! J6 S7 R
pokeVariant[1].bstrVal = itemStr;- \; [! }2 `* b! g$ n, I+ D) h+ L
7 }- w& _; c: t6 G B Z8 E1 R8 e! O topicStr = SysAllocString((WCHAR *) L"system");/ W0 v5 |4 {& p; c3 G/ G( S
VariantInit(&pokeVariant[2]); ' K# b4 Z( L' n pokeVariant[2].vt = VT_BSTR;* _3 m. T) k& Z% A
pokeVariant[2].bstrVal = topicStr; 6 x( p$ l: j" _5 N7 @, @7 V( `, M7 F
// Set the DISPPARAMS structure that holds the variant.8 w* c; Y j, F
0 b; U1 S: k3 f7 |; G) \, @. I dp.rgvarg = pokeVariant; 6 O* q/ K5 m0 \" v( I% r2 y dp.cArgs = 3; / F# q2 z. A5 E' u8 K$ D# C8 U dp.rgdispidNamedArgs = NULL; % K# o% |+ a& E0 g) N dp.cNamedArgs = 0;; l1 K" \2 \. j( p* P" l% @& U
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// Call IDispatch::Invoke()) C% @) M6 e1 Q0 B1 _2 C
5 n! x* f; b9 k7 ^) q2 u hr = m_pDisp->Invoke( y9 ? R- c9 R pokeID,. N# O. A9 s) N) }. j1 L3 h
IID_NULL, 2 w9 G4 [$ n$ g7 L1 M& X5 ] LOCALE_SYSTEM_DEFAULT,, r: s3 H# u! X- t/ x4 {2 _ U
DISPATCH_METHOD,9 |+ |1 E2 F2 ^) d# ~9 \
&dp,3 [7 E# e J+ F
NULL, : y7 M# j5 }! S* _$ ~ &ei,/ ~+ @5 }( C* |9 F! l2 e/ C/ a
&uiErr); 1 y1 u" y" [$ w9 M2 J4 v& F5 b# K. G8 U9 W. L: z& @
SysFreeString(topicStr); 4 F% ?( c4 E% x3 B+ w }2 t SysFreeString(itemStr); ! k0 a( ]; r! O1 k- Y- w SysFreeString(valueStr);1 m7 _' b8 [) [
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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???' w! J; f: b; S9 [0 k1 T
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????& I3 A; h5 z( Y9 x, E
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2.这是request的程序# n% X% X( }. w
// Request a value from Extend 5 a0 a$ Y2 ^* d//7 w; K- b1 W- c* _ A3 q
// Initialize the variant that will hold the BSTR. Set the variant's( x% M B% h% q( F! h, V8 o
// type flag to indicate the fact that this variant holds a BSTR. Place the" b% ~2 ^" T' J; s) y$ Q# R
// BSTR into the variant structure.* }4 D4 q1 u& |+ Q2 R0 |
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : p: ^8 P3 f- p2 M8 m) G2 e$ n 8 p4 ^* M: s% i9 L: g- { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% [7 L( K2 h: z, ~7 Q
VariantInit(&requestVariant[0]); + V K; [; U8 J5 _& V
requestVariant[0].vt = VT_BSTR;. J: O; u0 a7 ?8 v: N; w% [
requestVariant[0].bstrVal = itemStr;8 r7 E# z1 }6 S
$ I+ S) Q6 t& u4 E9 g topicStr = SysAllocString((WCHAR *) L"system"); 9 v& r8 B) ^, ]6 V' C VariantInit(&requestVariant[1]); b3 m+ h+ P0 J3 T/ e requestVariant[1].vt = VT_BSTR;1 j5 f1 }2 r0 a Y/ ]* y. W
requestVariant[1].bstrVal = topicStr;/ Y" D0 A% C$ F& g) X
6 |5 ?7 l% h: k) k// Set the DISPPARAMS structure that holds the variant. q0 }5 Y8 ?8 i0 y: i8 s" F / p1 T4 V# [) t7 K dp2.rgvarg = requestVariant;$ b/ t6 u) c5 M& M h% C* L
dp2.cArgs = 2;& ]: g9 n& o* q' s
dp2.rgdispidNamedArgs = NULL; 4 v/ u# v. [7 @* Q dp2.cNamedArgs = 0;# `( s) W6 e" x! N$ X
! |& N& V0 M* Q. O7 S var.vt = VT_EMPTY;/ n0 f1 c' d u! M, V
7 z) W2 S( r3 o5 t7 t3 _* L// Call IDispatch::Invoke() ' I9 z6 K- I% d5 X0 E+ J , I9 ~! K( W( A& r6 o% B hr = m_pDisp->Invoke(% s9 }9 u& @2 H& q
requestID,% X1 X) n( s9 Q0 A- N
IID_NULL,* v7 ]4 y n0 X5 m W% M
LOCALE_SYSTEM_DEFAULT, ! F/ S: x1 p, r" G DISPATCH_METHOD, - ^ i6 ^5 a, l &dp2, + G; d+ f. r1 Y8 f; p: n &var,/ q' \% b. ?, O& q- `# K! f
&ei,' g9 U9 W) w6 \% S5 Y" D8 J
&uiErr);% ~5 s k6 V1 I6 }* Z7 T/ m+ f( e. L
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SysFreeString(topicStr);: E# u" L+ T' R: O8 a' A# T5 H
SysFreeString(itemStr);' J6 [6 x: W9 @, L
请问该程序是获得extend里面的哪个值?' n0 j( J! ] D' ^
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????