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:+ V7 V/ ], u) \# B! |
Name = (WCHAR *) L"Poke";: {4 I) o" F+ M9 ^- Y1 j7 b
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hr = m_pDisp->GetIDsOfNames ( & i; C4 u1 j) O, E1 O IID_NULL, // reserved ; J" Q0 S8 s+ J2 M &Name, // Array of names to get IDs for1 o0 i/ j1 b+ B3 x- M9 J4 s
1, // # of names in the array 7 A' x+ j7 r; k5 N* n- ` LOCALE_SYSTEM_DEFAULT, // System locale$ Q8 R2 ?* v" o) S+ V
&pokeID); // Array of IDs to fill on output : e! G- [3 |: Z3 G" R. e5 Y ; M+ a1 N1 h; Y
if (hr) 7 x% I2 [+ ]+ C1 T+ `, `2 x {1 p2 \8 B5 A+ @# E$ P
MessageBox ("Get Poke Unsuccessful"); # r; Q( W9 Q8 U return; 6 R4 m3 A4 e, U6 `, ]7 _% [" o }0 f1 z* V6 @/ j- X: n( V |& M& O
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/**************************传递数据给extend**************************************/2 Z1 ?- n, k1 c1 D J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : i! c/ v6 }3 Z" m& j, ~5 u - e( K8 W1 s: e
valueStr = SysAllocString((WCHAR *) L"1232");3 i1 H9 ^* U' p% W$ t$ R2 ~
VariantInit(&pokeVariant[0]); - w4 E" n" h9 e# k# |2 d* r
pokeVariant[0].vt = VT_BSTR; ) V) k7 k" R3 n2 \ pokeVariant[0].bstrVal = valueStr;" Q/ R& o, ?: C& G n
! P) X+ b$ i6 _- n( {+ Y/ G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 r+ x! g* g$ N. V. u+ Y VariantInit(&pokeVariant[1]); 0 s- S. w5 ]# s+ J pokeVariant[1].vt = VT_BSTR; 1 k) I' f& y3 W8 C5 H+ l pokeVariant[1].bstrVal = itemStr; 3 M6 Y) H. h3 `& B% f 6 I" i J# w1 b- i8 L+ O topicStr = SysAllocString((WCHAR *) L"system"); ' `( v% a' f! Z |0 k VariantInit(&pokeVariant[2]); ) J [0 D9 Q7 \* ^+ }* B! V( F pokeVariant[2].vt = VT_BSTR; ( V4 L' x% g% r( b$ x- v2 C pokeVariant[2].bstrVal = topicStr;$ g+ t3 ~" K$ S0 b5 q- P
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// Set the DISPPARAMS structure that holds the variant.4 U0 v- J" @4 q7 o/ y. ]
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dp.rgvarg = pokeVariant; 2 b8 M$ F$ j+ Z( Z3 [, q dp.cArgs = 3;+ N1 q0 d8 Z& w2 k2 [3 M9 N( A
dp.rgdispidNamedArgs = NULL; ! s* a6 Z8 x% z( ~7 h& t% N) K dp.cNamedArgs = 0;* d+ J K* q6 d. t! E
7 r0 n5 w, P* E% O4 B1 v// Call IDispatch::Invoke() # M: L; ^. ~7 u 2 j2 W O+ N% ?7 V+ K- V8 M hr = m_pDisp->Invoke(# \! _+ E1 A# _
pokeID, . x u C& d" e: p: L IID_NULL,; x1 V0 Q8 q+ g- z
LOCALE_SYSTEM_DEFAULT, & T ]* c# D* K+ i) P" }. h) ? _ DISPATCH_METHOD,7 x1 E% S+ `, D' l
&dp, " n# I- z( C$ P; b# Y: } z NULL, : I$ ^/ z/ K8 D0 O& O0 x &ei, " p7 V, y% \& N &uiErr); 5 X! |9 C4 `% n) E( w0 _ 6 o% y' \* \' V3 k! f SysFreeString(topicStr);7 K) H0 Y! ?! _
SysFreeString(itemStr); 8 \2 j0 ?8 Z" E+ g2 o. ? SysFreeString(valueStr);/ a; T9 t+ Y9 g5 s% {
7 W9 e4 C W) n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??? ) {& y$ Y6 T. M, U" u# ~1 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????4 L( T$ r6 P' C, Y% r1 Q" _* \; R! }
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2.这是request的程序 % F; n$ N t# }. f" G- N5 }: P+ ?// Request a value from Extend" \) B9 v+ c& K) P, f' L* o
// 4 C3 ^% n: q' {- X// Initialize the variant that will hold the BSTR. Set the variant's ; A; @1 \! W5 J2 H- I" f0 N// type flag to indicate the fact that this variant holds a BSTR. Place the/ y2 O; d# t6 b8 t" I% Y5 @# x
// BSTR into the variant structure.* l6 M* w* s7 o% [( m! d; L; s$ y
" ~7 n ~" i* ]$ ]6 M* k9 r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 w9 W' D% C5 ^+ o 7 z$ x8 B4 Z! l c: V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 w m1 P/ ^" @
VariantInit(&requestVariant[0]); ! T& f4 O% ~- R; z, Q7 ~" E3 B requestVariant[0].vt = VT_BSTR; 6 a, I" s( i4 h requestVariant[0].bstrVal = itemStr;: { g w0 h/ Z4 \# e
* M3 _% D. T' K0 c! Q2 s: Z7 U topicStr = SysAllocString((WCHAR *) L"system");6 N# ~ j$ w! y; {! `
VariantInit(&requestVariant[1]); ! O1 m6 K* t. I' v& _" ?2 d
requestVariant[1].vt = VT_BSTR;' L8 b5 c! W3 n
requestVariant[1].bstrVal = topicStr; % S9 |7 C+ N6 X1 n+ ^& y8 Z$ Y- T % u8 n- p' P* ~ w2 m% C B+ c0 c// Set the DISPPARAMS structure that holds the variant. 9 g6 `) R/ \' U2 d) x% f( Q: k: z* L3 X8 Z" e1 [9 V* I b
dp2.rgvarg = requestVariant; % \' e) X. u% n' A- G$ R/ D dp2.cArgs = 2; % i( [) V8 r' z# J9 E: @ dp2.rgdispidNamedArgs = NULL; ) v! Q) X. F7 `/ u5 ], k$ L( \ dp2.cNamedArgs = 0; 7 g5 \$ R) P- |8 j! X0 ^* m' z( v) h! y( |$ |
var.vt = VT_EMPTY; 9 l) `$ C1 ^3 e2 b/ o. K) ^& A- K& B& s" z
// Call IDispatch::Invoke()- J; M( D- S$ L0 X
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hr = m_pDisp->Invoke(! `) Y7 j n5 `% P" J
requestID,0 A* O) g- e$ Q
IID_NULL,0 C' ~! F( ~& M* b+ T4 C8 y& v; z
LOCALE_SYSTEM_DEFAULT, 5 V9 _3 H5 s+ x+ p9 N4 J DISPATCH_METHOD, ) f/ G# N! ^, E! a( b/ V &dp2, # P0 T1 }: r8 P &var,* {3 p G/ Z: }& S- |: q1 {' R
&ei,7 D% a6 h8 r; l- e
&uiErr);) F6 e. ^5 r. [9 L" d ~
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SysFreeString(topicStr); 2 |; Y, I) p! D8 X SysFreeString(itemStr); 2 J; W- E; y) t! o, x8 `/ l" T请问该程序是获得extend里面的哪个值? 5 K1 a, q' k: X2 z8 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????