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: / r1 P" T7 w, {Name = (WCHAR *) L"Poke"; " M. Q: y* T. L7 s9 j& ^1 { 2 P$ m0 r9 e# p; x6 N hr = m_pDisp->GetIDsOfNames ( 0 v- }$ | X6 l' ~+ v6 v IID_NULL, // reserved " R& r% j; i; Y3 D &Name, // Array of names to get IDs for ! i" |1 M+ x/ W( F) p1 _ e 1, // # of names in the array {" _1 w- n. `* i$ D LOCALE_SYSTEM_DEFAULT, // System locale H1 I8 H `, ^; R, ? &pokeID); // Array of IDs to fill on output( S/ `. R9 a- \1 V; w- g
}5 X* R4 r' ^! }$ S$ q if (hr) 3 R C# [# Z% |! y { m$ A+ U: \" {4 j
MessageBox ("Get Poke Unsuccessful"); - C @& B/ K# a return;9 y/ p$ `/ Y) E3 Z6 i
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/**************************传递数据给extend**************************************/ 1 }2 q2 D6 R5 l- l4 u1 j0 @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! K/ l7 U1 c- K- k1 Z. i
( _3 D) Q0 c; G( `/ k4 m) O6 u valueStr = SysAllocString((WCHAR *) L"1232");; v. P( p1 t' N! J5 O
VariantInit(&pokeVariant[0]); " ?7 D, P* J9 w" i' g
pokeVariant[0].vt = VT_BSTR; . s% _9 v2 S0 O; @, k! p$ U4 q pokeVariant[0].bstrVal = valueStr; # B- N# S! L. P D6 ~ + n4 _* \0 y# D6 J" j3 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % B/ `7 C5 `/ B* N VariantInit(&pokeVariant[1]); ! R' g1 |. S# e9 i: c pokeVariant[1].vt = VT_BSTR; 1 d, U, p- d$ r3 q* s; y8 y3 N' N pokeVariant[1].bstrVal = itemStr;% H0 S% l* N, q1 x
2 }6 P+ I$ q+ }9 U. X; }* A1 T7 ~: ?' w topicStr = SysAllocString((WCHAR *) L"system");$ E4 `" W5 B7 L- i7 ]1 ~8 [1 ?1 A
VariantInit(&pokeVariant[2]); ' N$ O1 B5 l& i2 E# T pokeVariant[2].vt = VT_BSTR;7 }) O" e4 C8 d! z9 F; L* [: r
pokeVariant[2].bstrVal = topicStr; # k7 c& ]! I9 G2 B6 \$ F * x& p* W- Y O: d: z# @7 d3 O* H// Set the DISPPARAMS structure that holds the variant. 5 J9 u3 s3 l/ ?9 c* z 9 }6 f3 o" ~/ `) o+ O) e1 e0 b5 L dp.rgvarg = pokeVariant;) D) q& `" |. v$ h2 R0 M) R6 [
dp.cArgs = 3;: m A7 | m* |9 c* n
dp.rgdispidNamedArgs = NULL;% D4 k% @3 s1 @! }1 j) s$ z# Q
dp.cNamedArgs = 0; 7 q8 s" K0 f2 c0 q5 T" o( B! g7 D+ v0 U4 X
// Call IDispatch::Invoke()+ |6 X! w" H7 { H) V5 O: i
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hr = m_pDisp->Invoke( & h1 \9 |5 n1 V7 e& Y pokeID, : H6 O. N' v( I IID_NULL, ( ]$ L# H7 _% H/ ^ LOCALE_SYSTEM_DEFAULT,. u, b9 @- U) {* l) k
DISPATCH_METHOD, 3 O4 e, Y! \0 G E &dp, , f' j7 w# l$ ^, \ NULL, ' r* K6 J7 I1 G9 ^. ^9 h2 ~& ]' u &ei, , o' V8 r/ R" V5 E3 I4 w &uiErr);9 t7 C! r1 r8 Y+ m- }& M: f H
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SysFreeString(topicStr); $ f+ J& f, V7 @, ^ SysFreeString(itemStr); 3 p0 p! @& ]) k, @- q# [) I SysFreeString(valueStr);8 W3 t( J+ M: U* V
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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??? . t b, u0 e2 v$ E* P/ g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????9 X. z- t- p0 ~1 \4 p* ^) H
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9 W5 B( @2 s# S, f3 H2.这是request的程序 & b9 D9 o) N" C2 B8 R2 K( Z4 e+ @4 x// Request a value from Extend3 q! D; J) q3 e( n; q5 R1 {
// 4 @/ _3 @" y; Y. C& l// Initialize the variant that will hold the BSTR. Set the variant's 1 x4 v; s. G$ G& Q* k// type flag to indicate the fact that this variant holds a BSTR. Place the7 c+ V/ z! Y% \) Q& z( ?: p
// BSTR into the variant structure. 1 X: x7 E0 h/ F4 x0 i6 b ; o4 @* {+ D4 K; i; I& G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 a2 r( B+ H" U. T
' R7 ?2 d& B6 Z) S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' g3 |9 \! R. F VariantInit(&requestVariant[0]); ' |- X1 i. N& t! S requestVariant[0].vt = VT_BSTR; 7 F, @' d, M0 n# a. R i2 T requestVariant[0].bstrVal = itemStr;3 @# b4 O' `2 F( v/ Y6 I
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topicStr = SysAllocString((WCHAR *) L"system"); $ O/ O1 D% v4 m" m VariantInit(&requestVariant[1]); 3 g& i/ x$ @' T2 l
requestVariant[1].vt = VT_BSTR; # l! N8 h- O( s7 u requestVariant[1].bstrVal = topicStr; - ]6 T$ O1 o9 T, ]( r* l 6 D$ C, W5 b+ G1 z, m; D- P// Set the DISPPARAMS structure that holds the variant. / i3 Z& |6 s( u) W, }8 |) n4 e2 O- x1 w u# l' x4 O$ k
dp2.rgvarg = requestVariant;* X3 S# h* z6 Y/ {2 ?2 ^) s
dp2.cArgs = 2; E2 V2 x1 E! }) O0 s1 q: y
dp2.rgdispidNamedArgs = NULL;' A) D* |6 F, W: Y& I
dp2.cNamedArgs = 0;. }# M4 E: a9 T/ ?4 G" I
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var.vt = VT_EMPTY; 5 A) H8 F) x' h9 @; F) R/ j1 n: `- ]! G
// Call IDispatch::Invoke()6 [) { D+ `8 d4 s; n
! y4 @0 W. g. ^+ z# _! i; F9 U9 M hr = m_pDisp->Invoke( - J* ?# \ p: c" g' W% x requestID,! d- I8 [9 \( h& _8 g' i
IID_NULL,& y2 k1 g( L: q
LOCALE_SYSTEM_DEFAULT, # d# M0 Q: |9 e) f, } DISPATCH_METHOD,: |+ N1 V6 j! h0 ^9 p# V
&dp2, G$ M, l" p$ l &var,0 r& \4 t2 n* Z# H/ O) _$ ]
&ei, ' z& @7 g1 B7 H6 _5 a" W/ }; c0 I6 I &uiErr); 4 s+ g) E0 l) u8 ]+ O* j* | 8 O* X( X @ v SysFreeString(topicStr); ' ]" G; _# x6 Y, I) P, U9 N$ Y SysFreeString(itemStr); ' D! L, L$ j2 i5 o, s K4 H6 P请问该程序是获得extend里面的哪个值?, Q8 J) o0 }* A
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????