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: 1 {' Z0 e. y) I$ A1 b( h6 fName = (WCHAR *) L"Poke"; 7 P# g+ G( u) `8 m' n! x 6 O- P8 Y- M. T0 ~ hr = m_pDisp->GetIDsOfNames (4 j" H0 W/ H; ]
IID_NULL, // reserved $ l( S/ U! g& I A/ h &Name, // Array of names to get IDs for , N% s6 [7 s9 N* W 1, // # of names in the array ( y' D v. p5 T' ?- ~ LOCALE_SYSTEM_DEFAULT, // System locale & t! E9 q3 F' B' [- ? &pokeID); // Array of IDs to fill on output 2 X& ^( S2 H2 r# C! A8 { ; V2 s* M) @) |1 A' R" ?! t
if (hr)2 {: ^5 b; c* s/ G* l
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MessageBox ("Get Poke Unsuccessful");) S) ~# x6 M, O+ U& h& a$ |
return;; |# S( f9 ^8 k+ |
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/**************************传递数据给extend**************************************/+ D9 R) i( ~3 C7 ?, [, E6 n! r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; N; P+ A5 r7 ]+ [: A1 ?* B7 @2 b 3 U* v/ x k+ w: X6 N valueStr = SysAllocString((WCHAR *) L"1232"); / B) J& x8 v' v VariantInit(&pokeVariant[0]); : ~& `" W" |) s( n1 V+ P% h
pokeVariant[0].vt = VT_BSTR; ( z! O1 i* d" g% o+ j# s: p pokeVariant[0].bstrVal = valueStr; 2 x+ G) T7 b8 a: k; \ ( w [& r5 b+ @3 v0 R w5 j) d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' v1 d+ V7 q0 `# |5 I
VariantInit(&pokeVariant[1]); 5 A1 m* H. Q# m( t" C( {* D1 b pokeVariant[1].vt = VT_BSTR;/ d6 F+ c2 K0 A) q. p
pokeVariant[1].bstrVal = itemStr;' a' y- v" m; ~
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topicStr = SysAllocString((WCHAR *) L"system");; }, }# g4 G/ a/ X! r+ E
VariantInit(&pokeVariant[2]); ( H/ D L( h2 H7 f( B+ ^/ F. `
pokeVariant[2].vt = VT_BSTR; 1 x% w# @. W5 Y pokeVariant[2].bstrVal = topicStr; 1 b. V; D. m1 P: m/ t9 w; J @4 g' m7 H
// Set the DISPPARAMS structure that holds the variant.% P1 I! v% N% M) E) x1 M9 M
+ L3 L% {$ }# W. ]4 h% ^, v/ b. g+ Y5 m dp.rgvarg = pokeVariant;+ ^) L* R& e; s2 B* Q0 M& R
dp.cArgs = 3; 8 n) N* C0 Z; J dp.rgdispidNamedArgs = NULL; 7 U% L% c* G$ b/ O# ]* M dp.cNamedArgs = 0;8 C6 |' S8 m' H- s+ t: Q
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// Call IDispatch::Invoke() ) ?8 f. b4 E! w+ {% I ' J1 z/ R- b$ i% o hr = m_pDisp->Invoke(* l# m9 A- b1 x" P# t
pokeID,3 e! W* u! n% ~+ v
IID_NULL, : a; w0 K, A, l) C0 x+ e: y' G1 o LOCALE_SYSTEM_DEFAULT, . ]7 F; y6 F& N; U- |$ L DISPATCH_METHOD, ' y' c B8 H# N &dp,5 X" Y4 F7 O2 C- E
NULL, 9 w4 p8 A) S% h* u& I+ Z& s# O &ei,& W" k0 u- G/ K s' F: Y. e
&uiErr);/ g* K5 j+ L8 D; |0 p+ K* f& M) @
' |5 V3 I; `. s y. t SysFreeString(topicStr); 8 g8 h! o. `& t, p0 q, R SysFreeString(itemStr);5 `# D: B R$ _* E$ Z6 }
SysFreeString(valueStr);6 I0 L$ f9 f( u6 j, b
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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??? 4 a4 Y0 N) {2 Q1 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???? + c o- P+ C/ R0 B/ ` 9 p+ V; S4 G1 I3 x4 V* p" F & ^# T! l, y; e8 t4 u" {: V" z7 Y4 W2.这是request的程序 4 V A% }/ k3 b0 b1 g( w u) L5 E// Request a value from Extend2 {+ }( c! A2 e; T$ y
// # ]2 d: K3 O* v# p: e! s// Initialize the variant that will hold the BSTR. Set the variant's , X0 x' d" P4 g: `! l; b// type flag to indicate the fact that this variant holds a BSTR. Place the. z- g; {* g0 k
// BSTR into the variant structure.( s: V5 m9 O2 O/ b1 _3 E# h& a
: C+ X% D* v \! O4 p: T; w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 d& h7 \' T" y2 A6 d
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * p" x$ _ l L VariantInit(&requestVariant[0]); - k+ C7 N# z2 V$ U requestVariant[0].vt = VT_BSTR;+ M2 ` P( k3 j/ _$ [" [4 P
requestVariant[0].bstrVal = itemStr; / g% Z! f; S3 A6 I. J( z% t& B6 h8 G* J0 J
topicStr = SysAllocString((WCHAR *) L"system");! g8 N" a' F9 S T; e W3 z. M# }
VariantInit(&requestVariant[1]); F' H8 z0 A8 z% }; u requestVariant[1].vt = VT_BSTR; $ Y+ d4 s- K2 T/ @ requestVariant[1].bstrVal = topicStr; 6 d+ v7 U+ j7 F5 x + d0 N w: W% x/ X* h. b9 [// Set the DISPPARAMS structure that holds the variant. ( L+ |* _: M; V1 P( k* X* f! D! Q+ e' r: ^8 x- [8 e$ Z+ Q
dp2.rgvarg = requestVariant; 9 Y8 v4 z3 @0 _: o dp2.cArgs = 2;, r, b; b" M" w5 R5 O3 r# e
dp2.rgdispidNamedArgs = NULL;4 t3 l) L& V9 Q0 G- p* o
dp2.cNamedArgs = 0;: T3 B' d' B: K1 d+ M$ N( B* ^& k+ e
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var.vt = VT_EMPTY;6 \9 `- j; R% p/ u6 c; B
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// Call IDispatch::Invoke()5 t0 F& _0 b& V
; y& S* s# {7 T hr = m_pDisp->Invoke(7 N. y* J/ O7 G* r8 n0 E5 k$ K
requestID,8 d& q: A W( {7 ]4 |# N; L9 j- X
IID_NULL,4 g# |2 C5 \- c& D
LOCALE_SYSTEM_DEFAULT,# D% p* M, i, D3 y( F6 s3 k. V
DISPATCH_METHOD, $ ]4 l, r6 f' p& W &dp2, " u K. d# X2 Q# b( U7 { &var, 2 { R; Z% v7 H3 Z- z( e &ei,) n8 Z( n/ P' B3 k3 Q6 G
&uiErr); 7 n1 s) g5 y. H" x$ g1 P' |# }, p , ^8 D0 ~1 X7 a* I* q, h# U SysFreeString(topicStr); ; r# C! E) T2 `0 c SysFreeString(itemStr); 1 f4 h. U' h% e& O3 I3 @请问该程序是获得extend里面的哪个值?0 {6 G9 T( ]; w. s! 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????