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:. |! R3 R2 z7 H# G: i8 b
Name = (WCHAR *) L"Poke";2 U; L. \0 e/ C0 I c5 z( z
: S; X1 g9 \* M* g1 R/ {- D& S hr = m_pDisp->GetIDsOfNames (+ x9 ^2 J C: w6 T4 d5 H" G/ N
IID_NULL, // reserved( ^& Y5 M4 E: m! I7 G
&Name, // Array of names to get IDs for ! M- Y6 F, L! J. l2 R 1, // # of names in the array 7 f; q8 C; f8 N1 v P LOCALE_SYSTEM_DEFAULT, // System locale 1 k8 `5 X4 J" L. b' Z/ l( p' W &pokeID); // Array of IDs to fill on output 1 f9 v4 U& h+ t l4 h ' A9 r1 s1 ?+ H: p$ p" F2 r* s* x8 w if (hr) ! y7 ] t$ T7 I5 J! h7 b {$ T9 s- T; J/ a
MessageBox ("Get Poke Unsuccessful"); % f/ I1 m O* r& p return; ! h7 [! F& Q% C7 k5 P% _' U- [ } 0 H7 e" k% j( F2 d f; A, r1 K1 H, e' p* s% ~+ b/**************************传递数据给extend**************************************/: R, @- J) D2 J) h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. u- Y% L5 [0 ?0 t
( b* s% n/ L& y2 z8 X valueStr = SysAllocString((WCHAR *) L"1232");& R( p9 f" w8 C8 j1 m6 y
VariantInit(&pokeVariant[0]); 4 C1 u; x+ M2 X7 k' ?
pokeVariant[0].vt = VT_BSTR; " h Q. h4 I5 s( m( r pokeVariant[0].bstrVal = valueStr; ! n) Z+ I# H! K8 V& O- D% } 1 z6 b7 J& x2 _/ b2 U2 T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 E$ g7 o3 N) U) n& G VariantInit(&pokeVariant[1]); 3 h) a, ?( P7 l1 |5 H
pokeVariant[1].vt = VT_BSTR;3 I5 R8 J; r5 }
pokeVariant[1].bstrVal = itemStr;. P! q$ e: L: A1 p7 i* a
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topicStr = SysAllocString((WCHAR *) L"system"); 0 W! C4 j& ~: N. i VariantInit(&pokeVariant[2]); ) w5 h$ n! g; x
pokeVariant[2].vt = VT_BSTR; % e! u( y3 Z. A0 i8 v+ z" W- J pokeVariant[2].bstrVal = topicStr; 9 I6 {! t! j/ E, ^ $ F' j" S3 k6 k// Set the DISPPARAMS structure that holds the variant. $ y$ A0 C1 ~- V g: z1 F* N N* a' v
dp.rgvarg = pokeVariant; 7 B* [2 w4 v5 u" y* D- T dp.cArgs = 3; 6 A0 a7 o( K2 t! j/ A dp.rgdispidNamedArgs = NULL;+ R/ d& b8 x& x5 A; m# U
dp.cNamedArgs = 0;+ S, B" m" d+ O1 m+ L& l6 A3 p. `
: O8 y0 h9 {8 D+ Z! u- a0 L
// Call IDispatch::Invoke()$ e9 P1 n1 a% N, M9 U
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hr = m_pDisp->Invoke( : ], A* |' R! f* U1 H& G pokeID, 3 f: p) ^# ]7 Y IID_NULL, * |+ H7 {" P2 W8 [ LOCALE_SYSTEM_DEFAULT, : g7 l2 m: ?" L( P8 i DISPATCH_METHOD, . W3 R7 U) W# Z7 Q1 A7 X1 m8 L &dp,0 A+ R) {& Q y! J1 L6 Z3 [" P
NULL, . q! R! e+ U1 w2 B# a &ei, ( i+ @$ }# E* x &uiErr);+ y6 B* _" f0 x& g
+ c% N) T: O: D% r0 y @$ l SysFreeString(topicStr);3 o& c- ^* P: O# q5 U* z
SysFreeString(itemStr);1 S" j: T% d( s& N3 R/ b2 [
SysFreeString(valueStr); $ b# _0 \' S- J# \ 1 U: x; d" `( j; @. z5 x7 B! b* J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??? % c. [+ p2 T j- P# ^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???? 2 q. I' T3 M# ]8 `+ Q6 @ - g. }4 N _. L/ B' ~- x/ K& i) E" Z% h+ j
2.这是request的程序 ; |! z, Z- u' L2 K' L# T; J// Request a value from Extend 7 H8 v" k3 h Z// / t5 p; S6 Y- s# t, d6 f// Initialize the variant that will hold the BSTR. Set the variant's 3 A2 @& D, U' q5 N, L1 d// type flag to indicate the fact that this variant holds a BSTR. Place the! i* z3 X: c1 t1 t) E
// BSTR into the variant structure. 5 F; V9 S1 I. l( H4 q 0 `5 n/ Q5 U( @ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ ]+ I2 M* d* {+ @2 d ' J g( ~( ?' W! E2 Z# w7 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! h) ?+ U2 _8 ~/ ]& p2 s4 e0 v r
VariantInit(&requestVariant[0]); 2 x0 m: c2 P. k$ l# s D1 g requestVariant[0].vt = VT_BSTR;; v6 U# q7 z7 h$ l
requestVariant[0].bstrVal = itemStr; 5 o$ t1 h' e( ~9 _8 i4 C, H9 _1 F' \
topicStr = SysAllocString((WCHAR *) L"system"); " d [8 _$ r h' f) E VariantInit(&requestVariant[1]); 9 A8 @6 _2 v5 j# e
requestVariant[1].vt = VT_BSTR;* K& f6 P2 ^4 M0 I y7 ^
requestVariant[1].bstrVal = topicStr;9 s# J+ D; p) \5 O4 q$ Z" u1 H, D
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// Set the DISPPARAMS structure that holds the variant. , F' J( V% E$ n8 e( x( h% T k" u: H2 h3 \1 J/ f* H: Z/ ` dp2.rgvarg = requestVariant;, N- `) m: r4 Y
dp2.cArgs = 2;& P5 ]" o9 F3 a0 A" |
dp2.rgdispidNamedArgs = NULL;" c, R* }. v: r2 M2 \# h# d
dp2.cNamedArgs = 0; 5 N! y9 k R* ?9 T \1 Q! | B1 I5 l9 P. B& i
var.vt = VT_EMPTY; . Q& U/ m8 f Q; K1 f: ] S. r) v' ~( O- x
// Call IDispatch::Invoke() ) O9 j+ M6 W- d+ z' ~/ z- R9 p: P/ m+ y9 Q* a
hr = m_pDisp->Invoke(5 X# p8 J% g W9 f4 ~" ~4 Y" p
requestID,4 A% t; h( o9 S- b6 D
IID_NULL, " f4 s$ n3 b' O, _2 [ LOCALE_SYSTEM_DEFAULT,/ }' o* X( B/ ]8 M
DISPATCH_METHOD,2 g! I4 D& O7 k
&dp2,' ?$ Q# u) u; r5 |, {
&var, 3 g, ]8 y2 n* a8 P6 j &ei, 3 K$ L$ O2 r* C# z& ~ &uiErr); 9 v( n# Z1 W }" E2 W* |5 k' K! `4 ]. d2 h/ V5 }% s
SysFreeString(topicStr);; {, Q7 L, Z5 x. ?% t
SysFreeString(itemStr);; \# S8 K/ u% Z9 b) X+ |% ^9 z
请问该程序是获得extend里面的哪个值? ; H; i) t8 S- J; j# s3 n: T! N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????