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: ( M; G3 c" q* C5 J) K @+ s' BName = (WCHAR *) L"Poke";* i$ z8 M+ J. @5 F, \
5 V. ?& d; m6 y( E+ K5 j hr = m_pDisp->GetIDsOfNames (+ J- ?! m) n, g. [! G) r
IID_NULL, // reserved 0 z- A1 n6 h. H# Q1 b6 ~- w &Name, // Array of names to get IDs for$ p$ }2 U: ]4 y
1, // # of names in the array) T5 r m1 Q+ K5 U9 A" P. U
LOCALE_SYSTEM_DEFAULT, // System locale8 O4 h6 S+ W2 s1 B( ?. v$ x( o+ \" ^
&pokeID); // Array of IDs to fill on output2 Y7 ^! s9 h/ T) B0 ]
' w1 y; Y6 V% ^% `* S. l* O if (hr) ; p8 C! ^) N; z; a1 e { & A% V2 j& }+ L3 i* N, ]! o MessageBox ("Get Poke Unsuccessful");. a1 |4 H$ v$ L- a
return; , d2 _" a& [) H/ ~$ C }6 }# J- Q, i4 a6 A/ v5 ]
3 t P, |# W$ q7 v& \: Z& i/**************************传递数据给extend**************************************/ $ d# ^1 p' j9 B4 B7 A$ D- B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 G1 |0 T& P N& i % S C3 k* c4 P! r valueStr = SysAllocString((WCHAR *) L"1232");, F6 [8 k: S0 y( ?3 A/ u
VariantInit(&pokeVariant[0]); 4 ]% O/ l. K( w% V& J pokeVariant[0].vt = VT_BSTR; ' d1 G9 b2 J$ T* U pokeVariant[0].bstrVal = valueStr; $ Z5 s8 S8 F4 H$ n7 m% w- _/ t# q" P/ y8 k1 X* j' a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! E4 w" [7 E& q2 b) ?% s
VariantInit(&pokeVariant[1]); _' x8 P4 w! _
pokeVariant[1].vt = VT_BSTR; 6 w. X+ g- e5 o }" ~2 j pokeVariant[1].bstrVal = itemStr; 3 Z, V6 ?2 ~, b8 ]& [, D% |% J $ {; J0 M4 G+ N* g; l% n topicStr = SysAllocString((WCHAR *) L"system"); 4 l S) Z% E+ Q VariantInit(&pokeVariant[2]); ) K% m1 q2 e/ R) @2 Z
pokeVariant[2].vt = VT_BSTR; ; D f8 w0 [ w) {4 i pokeVariant[2].bstrVal = topicStr; 1 ^* |2 b& i: o# v. Y3 r/ v / b" Z9 j& B" J+ b5 Q, ?// Set the DISPPARAMS structure that holds the variant. + V: K5 E" [- r4 ?+ L 9 `: I( r; t7 W" m. [% \, M6 g- M dp.rgvarg = pokeVariant; 9 G! R8 T }, |* }9 e dp.cArgs = 3; # [5 K1 O# Z: a& p% t* }6 b6 \ dp.rgdispidNamedArgs = NULL;% w) j% O. H2 _7 o; p# b
dp.cNamedArgs = 0;$ B5 w2 G" _ d
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// Call IDispatch::Invoke()2 E R3 O! _6 P9 e/ v
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hr = m_pDisp->Invoke(% k( i# a6 e! Q2 P* @! g/ j4 v% f
pokeID, / A/ E; l* f: |2 h4 I$ L# X; ~* |4 I* H IID_NULL, 2 N {* q$ j+ s: t6 I* u3 h LOCALE_SYSTEM_DEFAULT,- f6 X( T9 q9 b- |
DISPATCH_METHOD, & U9 s$ }2 s5 U; q7 o& p, `+ E &dp,/ f5 s5 J: {' z, V, ]
NULL, 7 o; n$ S2 L5 {0 n6 w( I &ei, : c' R5 ^8 l; i &uiErr);4 A( T; g# j7 Y. _/ B
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SysFreeString(topicStr); 3 f+ `2 z+ H- {. y8 R: k9 o [ SysFreeString(itemStr); ; J; F) B! r/ O1 Q1 k$ `+ k: }* Z SysFreeString(valueStr); * x, o4 F7 K4 S8 k; k 5 l' J: y. X M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??? $ f' W7 k R& U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????1 T6 n. X( i3 v) B
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- g2 d; K! C+ B3 |8 ~7 U$ ]* T2.这是request的程序 X7 |6 S+ l( ?+ V0 T// Request a value from Extend: f% R2 ~$ I0 C
// : [6 p- G# Q: Y! G// Initialize the variant that will hold the BSTR. Set the variant's 5 S( _0 ~; ?" j// type flag to indicate the fact that this variant holds a BSTR. Place the8 O H& L" h* q8 N
// BSTR into the variant structure.$ ?) p$ p# n2 f5 Z# D
5 \; K. n8 V4 `/ a1 Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + g7 i5 J+ Y3 R( V+ O' H" x9 v! H ; j$ J0 R; t8 @
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ v/ r" i- {: I& q& p4 Q$ G
VariantInit(&requestVariant[0]); + O9 T) G: h* D
requestVariant[0].vt = VT_BSTR; 2 z/ d: n7 O1 S requestVariant[0].bstrVal = itemStr; . r5 ?' A( C8 d/ r5 Z5 J. U' Z' G, f
topicStr = SysAllocString((WCHAR *) L"system"); 8 i& e0 L% p4 { z VariantInit(&requestVariant[1]); 6 D8 b$ t% Z1 g0 ` requestVariant[1].vt = VT_BSTR; & p3 ?: b* n8 j+ i" k' I# Q, N requestVariant[1].bstrVal = topicStr;9 r: O# \6 g7 D5 n, Y) L( u% a
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// Set the DISPPARAMS structure that holds the variant. 6 J! F$ X5 A( C4 U: |7 T* t1 c( ?, v1 f
dp2.rgvarg = requestVariant;% d2 ]3 {: E* g
dp2.cArgs = 2;' T, ?5 ~9 Y1 Z Z+ Z: I% R
dp2.rgdispidNamedArgs = NULL;+ A3 Q0 P. Q9 Q5 v9 D
dp2.cNamedArgs = 0; + j+ t! r9 G \% \6 E ) Q3 ?7 E( G" ?( d5 b( | var.vt = VT_EMPTY; 3 Z$ @3 v& g2 r$ u) H9 ]' p+ c% j8 v: @. N6 c
// Call IDispatch::Invoke() Z% b3 N* L) X5 J& c: D" O4 S ; n# r" a) h! }" X: E- P hr = m_pDisp->Invoke($ G: H, A; C3 U0 O( @4 X
requestID, " F3 g9 C% x5 T' e" o* \ IID_NULL,' d5 m3 W& c+ D, r7 Q
LOCALE_SYSTEM_DEFAULT, 3 l- R/ j1 [2 A9 ~ DISPATCH_METHOD, ) ]. S# {" X3 Q: D5 U &dp2,+ \$ Z. r; i% y% }( L- z' l5 Q- i& A
&var, - n7 a" G; w* S5 w% a0 O &ei,3 k% u( y/ E4 j0 M
&uiErr);8 H( z, m4 v! ?/ W. @ u% Z. M, \
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SysFreeString(topicStr); ' [: O3 @1 B) T, T- M2 h- o7 Z SysFreeString(itemStr);# _# R# O F8 l3 t. @
请问该程序是获得extend里面的哪个值?+ O- U. N& L; L% S1 Z, A# E
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????