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: 9 n0 Z$ K8 c* `Name = (WCHAR *) L"Poke";& K* X& E. R( y& \& c3 ^6 Z. G
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hr = m_pDisp->GetIDsOfNames (0 s) m+ T! z6 y) f6 V5 ^+ M
IID_NULL, // reserved; N$ m$ d8 e! M+ u: v' U
&Name, // Array of names to get IDs for! @$ D$ N X; H( z
1, // # of names in the array % T- o1 [% u) F! q5 G6 p LOCALE_SYSTEM_DEFAULT, // System locale & V! N4 i1 ?5 a8 P& i# d9 }- J# l &pokeID); // Array of IDs to fill on output! X4 N) |* N# n- X) w8 j
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if (hr) & B! r/ s: D) C* ` { , c* } I C. {/ H1 c: p# c9 B3 p% z MessageBox ("Get Poke Unsuccessful"); 4 |# P1 y# n6 g# E. m return;6 d0 z4 @$ x! f8 f( B
} 3 V, q/ r: ^. X' ]4 m. b / ?+ Y ?; M8 N/**************************传递数据给extend**************************************/ 7 N# B* } I) ]* h: s0 o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 J1 D% z0 O$ I7 c* ?/ V
( z* O. m: U, G, K; E9 z8 q valueStr = SysAllocString((WCHAR *) L"1232");$ ]! k: d6 n5 M$ P# K6 S
VariantInit(&pokeVariant[0]); 1 b1 K) w) |7 _1 l: t! f( O4 j/ ~
pokeVariant[0].vt = VT_BSTR; . K" n3 r2 @3 K( t0 g; M# K( b' U pokeVariant[0].bstrVal = valueStr; % M3 l2 K/ m. H, j1 a. h* V8 Q ; L _" {& n) z0 ?0 G8 x7 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' K. d0 y9 _ }. ~9 G, l
VariantInit(&pokeVariant[1]); . X5 s! j' q3 F& ~" {- k+ R
pokeVariant[1].vt = VT_BSTR; 8 F* a& [' W$ B pokeVariant[1].bstrVal = itemStr;% ^) L( H) U8 D! k, y
* Q" W( h% q+ C1 q, S# W. i4 @ topicStr = SysAllocString((WCHAR *) L"system");! g! y, w9 v& E5 W' F# a
VariantInit(&pokeVariant[2]); $ [* _( u! `9 f1 S
pokeVariant[2].vt = VT_BSTR; $ z1 }' C9 ^1 |6 e( K9 G: f pokeVariant[2].bstrVal = topicStr;+ v4 A( b4 W( `& ?
: G7 E; d7 p4 C. {// Set the DISPPARAMS structure that holds the variant.- ]* F+ G0 I6 s% ~/ K
: d, L a, k6 ?% Y/ T( b7 q dp.rgvarg = pokeVariant;. D+ |3 t3 b) n0 q' M- D) m0 t- S
dp.cArgs = 3;7 ]" s6 S/ s2 {3 a6 y; L
dp.rgdispidNamedArgs = NULL; g* j/ m6 v. t; h. X) y# s4 `
dp.cNamedArgs = 0; + P7 O9 d3 X. P8 N5 \; s! A' G: t / O9 y8 R; u- m" D! o- N6 X// Call IDispatch::Invoke() ' N, B; k T5 N' M. j( T0 i2 N$ M, B: P+ D* R0 v
hr = m_pDisp->Invoke(" E% o; D5 d" @; H5 ~$ B& c) }
pokeID,* H2 C V7 o" o8 X# W! r
IID_NULL, + q8 D2 ^. L1 f% { LOCALE_SYSTEM_DEFAULT, c* l0 w) ]1 [( _/ L/ y! j) _ DISPATCH_METHOD,( r+ q' D/ n$ G. k0 Z
&dp, ' v/ q8 y, f1 k* Q' t NULL, * s+ r- E- q( Z. F6 A &ei, / U# d9 P: C: a7 O* e j &uiErr);6 Y% F5 h) S" V" A
+ ]; X# B" p5 ? SysFreeString(topicStr);7 F- {% r' A1 F* p
SysFreeString(itemStr); + D) F' n: a6 k' i( b SysFreeString(valueStr);5 v( W4 {! p. c6 S3 S1 C' I' ^" k
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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???1 v+ Y4 g8 ?1 m# v
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???? . I. g$ f$ E# n, A0 Y0 a/ [/ m7 Y2 F; R3 k- U0 P
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2.这是request的程序 " V# x6 k3 T" b7 n// Request a value from Extend * L0 u/ K N/ X% f5 u// 4 K- l6 ~5 K7 b, w! h// Initialize the variant that will hold the BSTR. Set the variant's$ L2 W/ T# l* l3 S2 l
// type flag to indicate the fact that this variant holds a BSTR. Place the & A+ G" B& U& u6 P7 r// BSTR into the variant structure. + f: ]3 P$ Q0 Z $ J/ o1 E( ^2 { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ K0 A! Z" u [; T* ~
" f" L5 d3 R' l2 V0 X% _0 p: r* { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 T# S% ^8 o0 a# C
VariantInit(&requestVariant[0]); # e, J; v3 e% s- K2 J/ h" m
requestVariant[0].vt = VT_BSTR;* g6 _3 u8 b: N- m2 l, c3 a* R
requestVariant[0].bstrVal = itemStr;5 E: N! O- ?, I, I1 Z5 A+ N
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topicStr = SysAllocString((WCHAR *) L"system");8 b* p: W( ~( J
VariantInit(&requestVariant[1]); - f- n1 z4 R. I$ f. ~
requestVariant[1].vt = VT_BSTR;" {* o# z+ l4 [7 Y
requestVariant[1].bstrVal = topicStr; 0 Y4 X* y- L+ T3 }( G( s4 A: E7 }7 q0 c: J
// Set the DISPPARAMS structure that holds the variant. 1 ^3 j2 U& n) E, H/ v " B5 i ~; ~( V4 i* S: Y' H* I" I dp2.rgvarg = requestVariant;7 n- i( _; {( |6 i5 i& s* D
dp2.cArgs = 2; 7 O' N, [$ ]& ^ dp2.rgdispidNamedArgs = NULL; % b+ J0 a$ u" k, @) x dp2.cNamedArgs = 0; + x! _0 h8 p, O8 n. g& b, q# F6 |/ K3 p* C' w6 p
var.vt = VT_EMPTY; " }% d% f3 h2 J0 i+ i9 O, s' ]& a% `. f1 W
// Call IDispatch::Invoke() 9 M j6 G6 A. B/ N* { , C5 G. |7 D& |3 o9 `! D5 B$ l hr = m_pDisp->Invoke( 8 T) B, p+ W7 T: W requestID, * V% y! q& _/ e4 W3 m IID_NULL, 1 X( W" c; D% f6 ?3 H# g LOCALE_SYSTEM_DEFAULT,1 ?3 v$ `/ z! S- Q
DISPATCH_METHOD,9 ?, K+ ^. d$ q3 { a
&dp2,! S; k+ U3 `5 U& v
&var,# ^3 I0 ?9 P; j$ V2 u- E" q% ^
&ei, ' V! K7 l m' r6 T; k &uiErr);) P9 N& c6 F( x7 l
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SysFreeString(topicStr); / i$ |$ H6 c3 x5 Q; M SysFreeString(itemStr);! e w' s w4 Z
请问该程序是获得extend里面的哪个值? $ g% k( N3 B0 i, ~9 G+ _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????