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:+ S/ t& @' R+ [3 d) g7 Y* x6 R* r$ S
Name = (WCHAR *) L"Poke";4 I( H5 x$ c8 w: A0 w) Y, l0 j
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hr = m_pDisp->GetIDsOfNames (: _; X1 U" t. \9 M5 Q
IID_NULL, // reserved " Z/ g' q* Z: y b( i &Name, // Array of names to get IDs for 1 B# Q& _* `0 G 1, // # of names in the array9 I) ~9 j, Z# e* P
LOCALE_SYSTEM_DEFAULT, // System locale . x% t6 P9 \+ y& h' f: y &pokeID); // Array of IDs to fill on output & T( l! V4 M& L8 e+ x 9 D' V' A8 F5 V2 n6 U, F if (hr)9 l$ a/ N y1 k6 s
{ 3 C- a% y& X; {) x/ t1 `- m) Y. j MessageBox ("Get Poke Unsuccessful"); ' P; |& u( {' l return;' `( E) E" i0 Z3 d
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/**************************传递数据给extend**************************************/ % F5 Z" L2 f$ f) r x9 a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 _( A9 S( k; T4 ^2 f1 A
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valueStr = SysAllocString((WCHAR *) L"1232"); - T! }* I. Y, y7 z: w/ Y$ G VariantInit(&pokeVariant[0]); & q# M7 r( K$ r9 _6 O) b
pokeVariant[0].vt = VT_BSTR;5 X9 i! N- @8 j3 B. p: j, l b. y
pokeVariant[0].bstrVal = valueStr; 3 e- }% D( N6 L0 ]( b$ Y) Q p4 C9 n: s5 Y8 S8 z+ I3 g$ p4 t- z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) E6 @( D! S: `# \* |
VariantInit(&pokeVariant[1]); 7 L3 ~ g3 \: h8 v$ ]; M pokeVariant[1].vt = VT_BSTR; 1 K5 J8 M& p6 |, W! I& V pokeVariant[1].bstrVal = itemStr;, \& z0 V9 Y6 i4 A n# r
4 k2 t/ e- V( y3 i }$ U topicStr = SysAllocString((WCHAR *) L"system");6 c3 ?- J* d! W1 i: g
VariantInit(&pokeVariant[2]); ' ~8 l' c o8 E8 i0 J pokeVariant[2].vt = VT_BSTR; : ^, e' b, ~6 H( u; C6 S pokeVariant[2].bstrVal = topicStr; 6 e$ ^: W# c+ l2 ^0 d+ e4 | o9 `- U' G
// Set the DISPPARAMS structure that holds the variant. D' h8 X+ M; C3 H) d1 q e. n* e + {6 M5 l) W6 w) j3 _ dp.rgvarg = pokeVariant;# T5 \# _+ t* e
dp.cArgs = 3;0 L" \/ Z# V; w( T8 u
dp.rgdispidNamedArgs = NULL; 5 f# j8 B1 D% P# s dp.cNamedArgs = 0; ' G3 V! D. `) j! N , H* `- Q. Q, x// Call IDispatch::Invoke()* i6 r: S! [. t' w) E& z/ ^' g1 N ~7 B
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hr = m_pDisp->Invoke($ |- y( n# u5 J/ n+ M+ C# t
pokeID, 3 B/ b: f# |' t IID_NULL,- D9 U- y' q3 R! F5 d
LOCALE_SYSTEM_DEFAULT,+ }( I n, k9 b9 @: ^
DISPATCH_METHOD,6 V+ U ~, ~ r+ r& u/ J. D& e
&dp,3 R0 f5 v; M0 d4 y( c
NULL, " K% `3 F$ Q" ?: c9 ]! k8 K &ei, . z# j. H+ B, Y# |2 T &uiErr);* v, K/ Q1 E. N A5 [
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SysFreeString(topicStr); 3 `$ e1 X* P, j% o& K) c1 T SysFreeString(itemStr); 6 G! z) N6 f$ J) y) v% L/ Q @ SysFreeString(valueStr);# n* |3 x- V/ e9 ?* ^
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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???! k7 }% j* B# Z3 ?# R' q
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???? . Q, R- E( J5 Q) K3 k$ P0 R/ r4 Y; y$ A8 j, W9 n, L
& J# w2 U( K) I+ r6 Y2.这是request的程序 / P# Q; s" }" C( z// Request a value from Extend+ ~( \( ^' X+ j# U/ \
//# D) J9 z8 c# {- b0 n, x( X
// Initialize the variant that will hold the BSTR. Set the variant's 2 }" ], C3 F* _7 q+ H// type flag to indicate the fact that this variant holds a BSTR. Place the; _- d! y) I; A4 W- B/ u! x
// BSTR into the variant structure. ; {, V2 _& p7 B& N2 Q6 R + ~4 Z# c9 M @" \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # w0 G V1 R# O2 T+ J7 n # L/ o+ E- S9 c( ~; N& L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); u1 D) u" X* S. w' s4 w
VariantInit(&requestVariant[0]); - T( z4 a' o4 t+ G( ]( b
requestVariant[0].vt = VT_BSTR;/ ?; X& t8 i, `" ?
requestVariant[0].bstrVal = itemStr; % J6 q6 s' W! W4 H$ [1 V* o1 t! C
topicStr = SysAllocString((WCHAR *) L"system"); # J# Z. ?$ S( N1 Z$ M6 f2 u VariantInit(&requestVariant[1]); - _/ F6 ?, w: y: _4 G requestVariant[1].vt = VT_BSTR;+ N9 I7 j, P6 t
requestVariant[1].bstrVal = topicStr;4 G+ z2 N r# G- }# k) O
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// Set the DISPPARAMS structure that holds the variant.7 q1 L& `6 F8 K. P. l" P! y, y
: O% Q, F2 j" ]. ] dp2.rgvarg = requestVariant; + o& ^4 c/ e- _! ~2 q dp2.cArgs = 2; * N: I9 a( W! Q dp2.rgdispidNamedArgs = NULL; ' C7 H, W6 C) R5 y* Y ?5 P) X dp2.cNamedArgs = 0;* Y1 [% D& r# V, I4 P, |
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var.vt = VT_EMPTY; 2 M) X# |9 A. R v 5 U6 C# a; n; T) @( {7 S// Call IDispatch::Invoke()8 T" U& e# |2 m' \2 ?! w" I9 ]
* N" {$ G- r* c7 {7 w hr = m_pDisp->Invoke( ! S) x/ ]6 i: w! g3 t6 E: ~& `( M requestID,4 C0 \& O+ ?' {- w) ^
IID_NULL,; C7 t) {; O. Q" K \' V
LOCALE_SYSTEM_DEFAULT, . a. f/ }6 g* t DISPATCH_METHOD,& r# ]" J$ V0 O
&dp2, 2 O3 ?0 x, L, M! B &var,% K0 E9 [! k% q. f! K( M0 j: p
&ei, 1 z9 n7 z/ S S* @& L1 A, J &uiErr); 4 [: I( `8 f& ?' A' i# _" N, G: Q% g. r$ j* ], r8 Y) Z- h
SysFreeString(topicStr); ' ~4 a9 p' g ^: _, E: W! K# [ q8 { SysFreeString(itemStr); 4 t3 |5 L2 @8 t9 p8 z( [, u3 V. ]请问该程序是获得extend里面的哪个值? 6 v. g( t# H, l% P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????