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: 0 I# S7 x7 p! P) iName = (WCHAR *) L"Poke"; T5 _; [4 y: Q0 f$ V . _4 G& A7 a" U0 k) d# }3 Z
hr = m_pDisp->GetIDsOfNames ( 7 w" a% n+ p. D IID_NULL, // reserved ) w q8 ]* q- z &Name, // Array of names to get IDs for4 C: z# T! o0 o
1, // # of names in the array # B' Y8 V! v; j: C3 c% n LOCALE_SYSTEM_DEFAULT, // System locale3 O; M6 c6 @! K. {$ x# j9 f
&pokeID); // Array of IDs to fill on output7 M& }2 j6 K) g/ u9 F$ L' C
4 D8 R! E+ t5 M. D# ]" h* D. m if (hr)# W: A/ o' f5 ~7 S" ^
{ + j1 w2 L+ E! r+ _+ s$ | MessageBox ("Get Poke Unsuccessful"); 7 O: U( K, t: i" H4 X# r return; - ^& z* ^" N5 O# i1 |9 | } 6 t* | k+ ]# y1 E7 N5 g6 V4 G: Y' c4 m; `/ c. Y X7 c/ b5 Q
/**************************传递数据给extend**************************************/ ( i1 ~, }6 G, S. p0 y5 d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 J% A& ?+ ?. y! U! m
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 A6 _4 H- s7 {0 L. T VariantInit(&pokeVariant[0]); 1 e4 p7 _9 Z: ~5 `0 K8 r
pokeVariant[0].vt = VT_BSTR;* ?3 C4 F1 l" g6 N
pokeVariant[0].bstrVal = valueStr;: P6 E- k1 x# P5 |/ L% z( ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - `" j* W) B0 z7 b, X% X VariantInit(&pokeVariant[1]); " q# ?+ d2 N( Z$ s+ q, p& i' d pokeVariant[1].vt = VT_BSTR;7 `" Z7 {3 Z* L, p% ?: G; K6 Q; ]
pokeVariant[1].bstrVal = itemStr; " Z* \: @& y. r: A9 l$ B2 K6 Z) z z
topicStr = SysAllocString((WCHAR *) L"system"); 5 n3 p n# m, g' a! L- c( i6 U VariantInit(&pokeVariant[2]); * z: z" \- Z: r- \0 p; \
pokeVariant[2].vt = VT_BSTR; - C' H% n/ f5 ~5 M pokeVariant[2].bstrVal = topicStr; 8 G: S+ f& j/ D6 \. f) M$ y. r) q4 [6 r% @; |
// Set the DISPPARAMS structure that holds the variant. ; C0 |3 Q) f2 @& a; [! o 4 _! C% \6 x, {: v6 B9 N dp.rgvarg = pokeVariant; ! O& j) d ?0 R M: N1 F% \' l) }6 r dp.cArgs = 3; 9 h9 z$ ~0 l9 t; F% B% _, I' p dp.rgdispidNamedArgs = NULL;8 L" o7 X, M* A* `3 H
dp.cNamedArgs = 0;$ Z; V, t; ^/ r a2 G
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// Call IDispatch::Invoke()6 c$ V. a M+ P: u. J. t
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hr = m_pDisp->Invoke( ' |+ [' V9 w1 }, y4 y9 p2 ^ pokeID,8 Y2 @$ k: P( \0 D% Q9 L1 s1 r# H
IID_NULL, ! A( p' A. p% T LOCALE_SYSTEM_DEFAULT,* Y3 \; y( m: i! F3 F3 M9 R* g
DISPATCH_METHOD,. f. E$ f. i$ q3 f2 j
&dp,# [9 |/ i" M$ C$ z
NULL, * H& Y& p8 P: W; O( |0 Z &ei,$ J4 Y2 X# l, N. F1 k: Q: w/ p% W
&uiErr);! r% E4 L; H$ ]
/ k% p5 T8 h' f" X6 i; D SysFreeString(topicStr);1 Y3 t% d8 } V1 ]- _0 [7 W
SysFreeString(itemStr); 3 j" Z H2 b T3 S' @ SysFreeString(valueStr); 0 |6 |4 e! w* Z& n$ |& r+ o5 R 6 Y' e9 V0 U$ M$ P7 ^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???( O; h. v3 F: H3 f/ A8 `1 g @+ e
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 `2 E5 j }/ |
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2 b# b$ l9 H( B( u" [0 d2.这是request的程序 + ~& O- a6 E+ p( K; L# J; l) X0 w// Request a value from Extend8 `5 C( {- {* j9 T/ T# b3 Z7 i6 s
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// Initialize the variant that will hold the BSTR. Set the variant's $ c0 i% f% R! ?" r1 t4 N9 a5 X7 f// type flag to indicate the fact that this variant holds a BSTR. Place the 5 a& S% b5 s. J% F) f3 P; |1 ?6 L// BSTR into the variant structure.- m" R1 F) b( w
3 H$ T. Y5 D. U" O1 ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% h1 I4 \* } E. d# H& l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ ?: O0 R8 G9 t& t VariantInit(&requestVariant[0]); 8 i7 s, a# K* k% m requestVariant[0].vt = VT_BSTR;7 \% ?3 w+ K5 Q# W
requestVariant[0].bstrVal = itemStr; 6 k$ E% ` i1 S4 u- A! U' q$ W; W7 R% E6 U) M
topicStr = SysAllocString((WCHAR *) L"system");/ @, \7 F& y- G
VariantInit(&requestVariant[1]); 6 c9 T' {2 _+ M# E& g
requestVariant[1].vt = VT_BSTR; E9 A& L m$ y7 I( R5 L' J2 W; w requestVariant[1].bstrVal = topicStr;# o$ b9 g T/ z4 s+ d5 P, j, c' _- p
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// Set the DISPPARAMS structure that holds the variant. 2 F7 P- A7 F- V* {6 K; Q: O# X- ?
dp2.rgvarg = requestVariant; 8 b' Z P! f8 k; e& n% f( f dp2.cArgs = 2;& t; q/ z( }7 i, i$ k2 [
dp2.rgdispidNamedArgs = NULL;0 U: u/ w$ b4 v( y, M, F' ?4 V
dp2.cNamedArgs = 0;. E+ {! I9 Z5 T, H5 A
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var.vt = VT_EMPTY;5 K: A1 L7 _+ ?1 v
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// Call IDispatch::Invoke()) u9 a# a# a2 e
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hr = m_pDisp->Invoke(' ^+ W/ U: b9 i
requestID, 5 K; \! q8 }$ X. F- Y IID_NULL,( ~0 a# a4 J3 |/ B- i$ f
LOCALE_SYSTEM_DEFAULT, ! l5 F9 N* Q1 \6 C DISPATCH_METHOD, 6 G* R5 U& l- Q; |0 z9 g &dp2, ; s; a* A0 Y) h7 X0 {. Z7 C &var,$ o1 S! Q' M5 P& R8 V7 }
&ei, ; D* |2 i' S. ~ {5 \ &uiErr); , r) ]5 |" H+ o# S% i' h/ Q 9 i. o5 v9 b2 \/ K' {8 J% U SysFreeString(topicStr); 1 o7 m! n6 D, n. h5 |9 U SysFreeString(itemStr); O6 _( b- ?7 s请问该程序是获得extend里面的哪个值? / ~0 |! s6 v M+ 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????