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: . v. f2 W0 |. aName = (WCHAR *) L"Poke"; D8 n1 }( V6 z3 r7 M$ I% o 2 o( u' l1 `/ M! a: p& M# \ hr = m_pDisp->GetIDsOfNames (: U+ x2 ?0 I2 ?7 M; s
IID_NULL, // reserved5 t+ p9 l% d e3 ?
&Name, // Array of names to get IDs for & e- E) i/ S. b% B0 n6 n3 ~ 1, // # of names in the array; F' f8 K6 N' M* m- t6 N
LOCALE_SYSTEM_DEFAULT, // System locale 2 n: ~( @, R* |# D- j% J &pokeID); // Array of IDs to fill on output8 |+ @1 H' h, R: B
# t5 A* O3 y( Q( i8 s/ R# Z if (hr) 2 s( u5 f2 I4 k) c { , `: \ G$ R4 d; |' o MessageBox ("Get Poke Unsuccessful"); ! X; ^5 ~; R" j return; 8 Y3 }1 |) z9 v3 k5 O } & w0 ^; u8 A# O1 |* s 0 [: s3 [7 v( @8 M/**************************传递数据给extend**************************************/& N9 c/ M5 X J4 ^& R7 n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 ^) a3 z) G1 a6 f# A6 J
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valueStr = SysAllocString((WCHAR *) L"1232"); 5 V2 I- _. V0 s# @) n0 K VariantInit(&pokeVariant[0]); ' A# `* U' d; v, D! { pokeVariant[0].vt = VT_BSTR;; M2 U4 V K$ A
pokeVariant[0].bstrVal = valueStr; 3 A7 C3 k9 C7 b9 l* ~ " h) v: X0 E& E) `# E( N! c [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); b4 s, d: r; W: t! f VariantInit(&pokeVariant[1]); # M# h+ z2 O4 j+ ?0 v
pokeVariant[1].vt = VT_BSTR;- e7 ~7 D. R% D" e6 l
pokeVariant[1].bstrVal = itemStr; * K# q7 t" z/ R! K5 X- z5 E u5 c" p
topicStr = SysAllocString((WCHAR *) L"system"); & g! `& P, u& Y! E VariantInit(&pokeVariant[2]); 5 v' E/ @$ L$ p* J: d4 i
pokeVariant[2].vt = VT_BSTR;1 @# g/ d+ }. r/ N
pokeVariant[2].bstrVal = topicStr;2 s* q2 n B& b
3 _; C+ }5 c+ s, O# I// Set the DISPPARAMS structure that holds the variant.6 g5 J+ V0 D5 d3 P
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dp.rgvarg = pokeVariant; @0 i4 l! |# r
dp.cArgs = 3; " l; Q" q4 ^& x dp.rgdispidNamedArgs = NULL; : [ a3 b: V4 I: J' w$ U7 p" B dp.cNamedArgs = 0;/ u. j7 y- R3 C8 \; _, @
" Y8 q3 k `9 R: O8 d& w7 f: u// Call IDispatch::Invoke() ; M: i1 w2 o1 h! I8 M/ _+ y/ z! ~' p . s$ ^, ^$ ]$ c Z1 p$ ~. z# j hr = m_pDisp->Invoke( ( G. Z) w3 H% k7 z% C pokeID, 8 Z, p Z# ^, ?; k5 T% K8 d IID_NULL,2 R$ x" n. h f+ \: m' ~
LOCALE_SYSTEM_DEFAULT,4 s; w$ l& i; J5 M: W, O; y
DISPATCH_METHOD,. H, F+ {6 e9 B- T5 F: F0 P
&dp, 7 [/ z, J* N/ y0 b NULL, 2 I: K: f- s, g m% v: N7 P) A5 z: @ &ei, 2 Y% ^* a$ s* X' y; f# O3 z. w8 f &uiErr);0 N5 g/ o2 A/ n
9 `: k9 F! F* G( B SysFreeString(topicStr); % Y+ G7 y c7 [( ?- o SysFreeString(itemStr);$ U* y" o" O0 g7 T/ j6 Q% K, E( g: ?
SysFreeString(valueStr); * R: u4 X8 e( y6 A 9 R: V6 t# e D8 x- ^, n4 x2 n: f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???. \3 _4 a5 |' P5 m. ]
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????( p6 r P$ w) {$ k0 E) Z% E/ u
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2.这是request的程序 3 ]/ M c9 o, C6 [9 W// Request a value from Extend ! p- _! r' b, z6 u. I: K// % z2 Q6 B% c( ?+ l0 L* [9 O// Initialize the variant that will hold the BSTR. Set the variant's " J8 I: d% ?6 Y" R// type flag to indicate the fact that this variant holds a BSTR. Place the* F, l% u' w9 K; Z9 B8 {: r
// BSTR into the variant structure.$ C& I$ {8 w7 m4 m
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 c0 M1 ?2 G* w7 `( o) ? & Y" ]6 L1 s! g; _' ?) l0 U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * K3 b6 a) R) ` VariantInit(&requestVariant[0]); 9 R }, q x$ u" u+ E requestVariant[0].vt = VT_BSTR; - Z, s" d7 b% }; o requestVariant[0].bstrVal = itemStr; 6 U7 O/ G; A( T2 [. c+ O1 h 4 s& v5 U( J Z* b topicStr = SysAllocString((WCHAR *) L"system"); ) s) t2 A& f. w y. e# T; H VariantInit(&requestVariant[1]); 2 [! S/ }$ j& Z4 l$ z
requestVariant[1].vt = VT_BSTR;% v- @ [ ~' a6 u
requestVariant[1].bstrVal = topicStr;. x2 y+ z5 H9 i% I6 X
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// Set the DISPPARAMS structure that holds the variant.! v: T( e' V$ @0 [! D
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dp2.rgvarg = requestVariant;- f1 g: C) X) m7 v
dp2.cArgs = 2; , ?5 T. G. O, A; `# X& q dp2.rgdispidNamedArgs = NULL; - _- Z# S0 |( Y' \8 W dp2.cNamedArgs = 0;* r- j2 G1 r. Q6 Q9 J. V# B
* Z- t6 A j+ q var.vt = VT_EMPTY; $ v) f# L1 b$ @7 |9 O9 ^. V- }+ ~0 N& T4 p
// Call IDispatch::Invoke()2 ]( b# T) b% e, v# {6 P) N
$ U# B3 a8 k+ x hr = m_pDisp->Invoke(5 _$ Q5 f. _2 \8 S* h
requestID, P2 X% B& Y0 Z* C) U% t5 e
IID_NULL,' V; `) W( [4 ?5 H( v% ]) {
LOCALE_SYSTEM_DEFAULT,5 J9 Q2 E- s( v ]# a
DISPATCH_METHOD, g1 F* }, k+ t" Z) z4 s- m
&dp2,( A) {' m( }9 y+ O* d1 a
&var, G% h# l0 m! V* a3 Y
&ei,* c% D9 F0 S1 ~/ M4 A0 y# F
&uiErr); " H0 K* g; g; f# U& } ' u1 u& b- S5 t2 v8 i9 X" B SysFreeString(topicStr);" O; k7 ]1 r8 A* j7 y3 Q( d! O5 E T
SysFreeString(itemStr); 4 s. R, p9 }5 m请问该程序是获得extend里面的哪个值?5 _3 N# {9 Z4 g0 p. X
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????