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: 3 l* j( l/ J1 J9 f2 G" Q% z* dName = (WCHAR *) L"Poke"; * v6 v. G- L4 w' N * e, K5 s8 ]* } }4 m
hr = m_pDisp->GetIDsOfNames (8 a k) o F! q9 q
IID_NULL, // reserved2 F. b) Z! p) T* [9 z9 k- A9 f8 Z
&Name, // Array of names to get IDs for 8 k% K/ V" e6 c" ^ 1, // # of names in the array , S& l7 m, D& c9 w% V LOCALE_SYSTEM_DEFAULT, // System locale6 \" x0 W+ X _; ?
&pokeID); // Array of IDs to fill on output ! d8 t! m; r3 T( p! X3 A5 k p, U+ j$ ?9 Y' T. K7 L
if (hr) , K8 Q9 ^& q& { {0 \, y# A5 v+ q# y% f; e$ u' i
MessageBox ("Get Poke Unsuccessful");8 N0 P! B0 w7 Z* q% }: p
return;0 c i& ]; e7 w) K1 n
} ) D6 d$ B* Q, M# Z# T0 d * j, g0 ]) F$ ~1 C! P/**************************传递数据给extend**************************************/& S; ]! G) H/ t$ ^9 [7 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# o9 `" z4 e& t. ~, x+ b# o
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valueStr = SysAllocString((WCHAR *) L"1232");+ V# P* v3 O" {
VariantInit(&pokeVariant[0]); , v! G* l: g _! O6 B; ^# F+ ?
pokeVariant[0].vt = VT_BSTR; 1 a3 K2 z. r0 l pokeVariant[0].bstrVal = valueStr;" A5 \1 I B% V7 c6 d! _
! ^! W. i( N$ d) ^; n6 C) b1 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( ?% P$ C4 L$ j3 K6 \
VariantInit(&pokeVariant[1]); 2 l# C( n4 }* [; ?6 @/ o# z q pokeVariant[1].vt = VT_BSTR;7 q+ L$ {/ ^7 x
pokeVariant[1].bstrVal = itemStr;. ^% d3 U& G0 m+ @6 A
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topicStr = SysAllocString((WCHAR *) L"system"); : W5 J- v8 C% z4 P8 j VariantInit(&pokeVariant[2]); $ P2 i0 M5 L& S
pokeVariant[2].vt = VT_BSTR;! a m; Q1 Q: u6 c
pokeVariant[2].bstrVal = topicStr;6 r6 W9 s: o3 f- G8 s9 r& B
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// Set the DISPPARAMS structure that holds the variant. : P* M8 p9 Z! j6 O: E- D 2 |5 i0 Y2 o* s: U! H1 f dp.rgvarg = pokeVariant;8 a7 S' a- H# ~% _3 Q Q T) W
dp.cArgs = 3;' h+ Q; `. |4 [
dp.rgdispidNamedArgs = NULL;4 ~: o9 f9 L( C* S) i
dp.cNamedArgs = 0;: Q4 b7 m( a6 B& o a
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// Call IDispatch::Invoke(): l6 w% T# v$ f4 A$ I" d4 b
$ Y- B" t) y2 r6 c) B. @, ]8 k hr = m_pDisp->Invoke(# d5 D$ S& C& C7 ~+ o
pokeID, k1 O+ Q6 A/ l IID_NULL, * f! g9 a% R+ X% V LOCALE_SYSTEM_DEFAULT, ) q$ B% j8 b% Y3 x3 j6 W9 I9 B DISPATCH_METHOD, / u, R$ O! \! r &dp,- q$ X. X- |1 w
NULL, : _$ c5 m3 ]+ d- L% Q &ei,/ K$ k1 L7 c7 v3 E
&uiErr);# F/ l( P I( t% V( L
5 n, n$ `- q" y3 U+ t SysFreeString(topicStr);( g2 U# V; q8 A5 w7 U4 ]+ m
SysFreeString(itemStr);+ Y- E8 U- X8 S7 q& X! B! V2 `$ O
SysFreeString(valueStr); . T5 }0 T% i8 i# f% o* R 6 _* w- C+ X* K/ M* R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: o! k, p" \ {& W q7 |; 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???? & G1 r- v% o: P# ~. @+ L/ k% A1 g7 e g5 V3 @: @, Q3 C
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2.这是request的程序; p4 y' ]8 i9 \
// Request a value from Extend) T) ^8 ^& {$ j9 b1 w
//2 y W) g* c& j$ C
// Initialize the variant that will hold the BSTR. Set the variant's ; N( q1 ~# o0 W% G }7 `// type flag to indicate the fact that this variant holds a BSTR. Place the # ]2 n! w O; k9 i// BSTR into the variant structure." k7 s. c4 c; A: ?# c9 U6 T
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 I( P: ~; u1 f$ f: A
% e) v; C8 q+ K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' a! c, w: T+ G" D5 Q) |6 P
VariantInit(&requestVariant[0]); . A; w# G& I K4 q. @
requestVariant[0].vt = VT_BSTR; # C, \% X1 v+ A$ z4 l& m requestVariant[0].bstrVal = itemStr; ' U# e% m$ _2 }2 K- J4 U7 B" @: M2 a8 L2 C- b$ |) v B- s7 ?
topicStr = SysAllocString((WCHAR *) L"system"); 7 W. l% U( p- u$ s& T; _% } VariantInit(&requestVariant[1]); " l: [ h; \1 \
requestVariant[1].vt = VT_BSTR; 2 v7 Z0 g/ b2 _& k! a8 D requestVariant[1].bstrVal = topicStr;7 t1 w5 g# D4 j5 d6 o
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// Set the DISPPARAMS structure that holds the variant. 2 e3 d% ^- w# y/ j* m; U& Z/ _; {3 u, U. i2 Q) f! s+ N- t
dp2.rgvarg = requestVariant;* e- ~5 p/ E5 q3 o
dp2.cArgs = 2; ]6 D# Y) G1 v0 m- ?% J0 b dp2.rgdispidNamedArgs = NULL; + T# _) |9 I' K$ @: g* C( j dp2.cNamedArgs = 0; ; M; s2 k& u" O+ D& @4 |; o( |8 k* {4 O& H \
var.vt = VT_EMPTY;) E# T7 J8 G* e, a6 S" F) u
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// Call IDispatch::Invoke()& a7 Y2 C* n4 A4 T% b+ g
) i' X) e' n% W hr = m_pDisp->Invoke( j* b( o; B d$ }# P- p% e requestID,) E) V' G: j# G2 P+ v' C2 q; d
IID_NULL, : C0 l; \0 b7 n LOCALE_SYSTEM_DEFAULT, / ~" p- }* e6 l% j% \4 G* ~" K& s' f2 V DISPATCH_METHOD, & C+ J8 t1 N3 c4 { &dp2, 5 Q q6 L/ w6 q. t* b/ ^ &var, 0 m+ Y: N4 x- N% M. N5 T, N &ei,, g; [' t% e. R" t5 ^' A
&uiErr);3 E: Z* O; M7 x( }
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SysFreeString(topicStr); + `/ J5 m) L! p2 q# C' S SysFreeString(itemStr);/ K, |2 V! E, [; i( c/ Q% f. i
请问该程序是获得extend里面的哪个值?. [' p( f( m2 v$ v0 ~- Z8 t
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????