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:- W/ E# o$ s! y% E, W1 g* e8 [3 G
Name = (WCHAR *) L"Poke"; - B! }* |# {) E# R$ @6 S& F, A & W4 [5 _: L7 R) G
hr = m_pDisp->GetIDsOfNames (8 u, H9 M/ V T+ k- N
IID_NULL, // reserved3 y" ~6 o6 X' e7 z5 {) I. ]4 W
&Name, // Array of names to get IDs for 7 e* Z9 H- L2 c1 Y& i. c# E& w6 x8 a 1, // # of names in the array Y- C7 _. G4 T: A! j LOCALE_SYSTEM_DEFAULT, // System locale' @8 S1 ^3 [. x2 B+ U
&pokeID); // Array of IDs to fill on output y" s3 t0 K2 x, o3 ^" E
' d: { _( z/ j# E: X if (hr) $ F/ _9 }* e+ c/ y5 c { : u; ?& ^' `# U7 j MessageBox ("Get Poke Unsuccessful"); $ j+ w# V3 {, @6 k+ c6 a return; . P3 c7 H b$ H } 9 {9 F$ r; a4 G0 t+ n, g % Y$ D: {9 e8 W/**************************传递数据给extend**************************************/ h/ e, J% p% Y% @5 t: x- F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; Z! n% ~0 t' }% j. s
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valueStr = SysAllocString((WCHAR *) L"1232"); B8 ~$ l# Z4 E- x7 ~% A
VariantInit(&pokeVariant[0]); 1 _: q6 K& N f$ x% [+ ^
pokeVariant[0].vt = VT_BSTR;/ a; c! c: d! ], T
pokeVariant[0].bstrVal = valueStr;4 k( i& i* I& J
( o/ T& O5 K/ z( {! |$ ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! @7 X7 D k0 A/ B/ a VariantInit(&pokeVariant[1]); 4 }# S+ Y$ A5 J7 m& b" | pokeVariant[1].vt = VT_BSTR;9 k y8 I! E9 n) l* x
pokeVariant[1].bstrVal = itemStr; " A6 q) l' {$ n/ ^. I% b2 f 7 `+ T. S/ C7 D4 b% r$ r9 U( i topicStr = SysAllocString((WCHAR *) L"system"); * n/ R8 E2 m5 X, }& D ] VariantInit(&pokeVariant[2]); R% ]" a8 F ^& i3 V/ ^. H" G
pokeVariant[2].vt = VT_BSTR;; o1 e5 G3 K- s/ L5 e% }
pokeVariant[2].bstrVal = topicStr; * j. Q" R. S4 R' B7 ^- V+ x1 J8 Y$ U7 z* U! V
// Set the DISPPARAMS structure that holds the variant.# \0 j- c. z1 o- G7 q
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dp.rgvarg = pokeVariant;2 q+ i% ~( H/ T
dp.cArgs = 3; 7 U$ \5 |0 k7 G) T& G% E) j dp.rgdispidNamedArgs = NULL; $ B$ o2 ?- L+ s+ c dp.cNamedArgs = 0;9 }. Q. L4 e! m# I# S
# g+ F$ |* x6 t7 x7 o// Call IDispatch::Invoke() % R$ m& l5 J, z( O% k- ~' r. h
hr = m_pDisp->Invoke(9 d; V, r. T% n, q9 a* j
pokeID,. E5 G3 a- y& i9 C# b
IID_NULL, $ L) G8 s; d: T2 L' m LOCALE_SYSTEM_DEFAULT, . d1 p' q# p# x" ?" j4 [& Z8 J DISPATCH_METHOD, ( f6 S" V m/ b" C1 U6 @) Z7 f &dp,: |- u" J4 L4 n2 p: }! L( y
NULL, * s; m3 ~8 i- J( P% P/ I# T &ei, # A& a! ~- x7 R3 z1 E- I &uiErr);9 |; Z; u5 F" w3 w9 ~6 n# ?* m
5 d, k* b4 G+ I SysFreeString(topicStr); , ? O+ @- E( {* R* ~! c2 D' b SysFreeString(itemStr);. G, p5 A k- {, {! m
SysFreeString(valueStr);/ ~ }. _# S. H a# T8 C
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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???$ y: B2 y% y, f- 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????$ \: H# |5 s6 { C6 S7 X
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2.这是request的程序 / o3 h3 N k( a. J// Request a value from Extend* n) Z" v9 y% G' v
//( p% g1 x. A& s* y0 L
// Initialize the variant that will hold the BSTR. Set the variant's) r0 }' @" H1 w9 R' I
// type flag to indicate the fact that this variant holds a BSTR. Place the5 m8 c9 d. H- u# H+ H" T1 C
// BSTR into the variant structure. 6 f5 L$ z0 W# o. n4 B! ?5 c ' j2 A% Q/ Z1 m$ [ E7 K9 H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) [/ @/ f8 K! l. @0 o2 u |" Q9 y# m7 s' _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 d9 f; _! k2 E$ ~8 y* a
VariantInit(&requestVariant[0]); $ c2 D$ M" S* W5 ` requestVariant[0].vt = VT_BSTR;9 ?* E) O, m n9 r, g/ v3 E
requestVariant[0].bstrVal = itemStr; & E' m3 r) I- o" ^, h8 R) x$ z, o& A1 S3 I( X1 a
topicStr = SysAllocString((WCHAR *) L"system"); 1 ~% K. I7 W/ H/ {' ?- p VariantInit(&requestVariant[1]); # k5 [9 ^1 _9 M+ }/ w3 _* v requestVariant[1].vt = VT_BSTR; - p; O: h/ w3 P requestVariant[1].bstrVal = topicStr; ! w& x A7 @6 I& d0 Q X2 \' h1 }% f L7 U- `7 R// Set the DISPPARAMS structure that holds the variant. % E4 i! v5 r% @8 K% \5 T ( H, ]9 S5 F# | I" x# \# d dp2.rgvarg = requestVariant;' D3 o$ w' g3 Z0 ?. p: F1 C* Z4 p
dp2.cArgs = 2; % x/ n4 p5 J3 D0 m: L! R, d dp2.rgdispidNamedArgs = NULL;; `9 |6 `5 B: I2 U
dp2.cNamedArgs = 0; / ?* n* ?3 `8 j0 M3 o5 \1 t- [+ R! i" _( _
var.vt = VT_EMPTY; 0 M* L' h. n \* [6 l/ P7 K$ V1 j! l1 Y3 ]. G; K j
// Call IDispatch::Invoke()" r1 F2 u9 x9 f+ r
* P0 c% O* e6 f$ U2 P hr = m_pDisp->Invoke() m- K7 w. T( e7 I* M
requestID, % T7 Q' n: j* i' I IID_NULL,* d! D" V Q6 k. P$ X" w
LOCALE_SYSTEM_DEFAULT,. A9 n1 n1 c/ G! q& \
DISPATCH_METHOD,9 m; m, @# E# h5 l2 X5 [
&dp2,5 w$ o% u8 P7 b& c
&var,9 v8 z# F: V2 H4 [' p/ R$ Q( p
&ei,' c: p, N% i# u4 p
&uiErr); 5 H/ h5 r# i: _# j9 i 5 N* E' A. R$ z }6 c0 G SysFreeString(topicStr); . q' c1 }9 U4 p4 S# m6 e9 ]$ {, T SysFreeString(itemStr);/ a5 I% p3 P. D! {- r) X4 Z
请问该程序是获得extend里面的哪个值? 5 _3 i% d% P& e2 H6 t/ X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????