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:) L- Y; R% s C! A' ?. w
Name = (WCHAR *) L"Poke";& e" K" K% h* ]1 e" c
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hr = m_pDisp->GetIDsOfNames (6 {' j! ?- k4 z) R/ `; ]
IID_NULL, // reserved 9 ?7 U& V, b( ?: T" P &Name, // Array of names to get IDs for + y! ?3 y. x, B5 Y% X 1, // # of names in the array9 @3 X2 X& C4 }7 i8 v
LOCALE_SYSTEM_DEFAULT, // System locale: {8 f8 ]+ O7 B' J3 i3 r5 P. I% o
&pokeID); // Array of IDs to fill on output9 x* k% Q5 ^( ?; M8 m1 |: V
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if (hr) ; O4 }9 s: M* x1 P {8 |% B+ ^8 {* s$ w0 g p, r
MessageBox ("Get Poke Unsuccessful"); + ?, i5 E$ {7 Z3 H9 g, N return; , w+ M# n' b2 f4 H# f" R }0 i( c. M' k0 x8 w/ V; }) h$ g
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/**************************传递数据给extend**************************************/. }) [; h3 |% ?' S9 I% h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. t6 n; d# z) a4 G( _" [
7 u: Z5 u7 X8 q1 d! H1 d valueStr = SysAllocString((WCHAR *) L"1232"); % g$ g: y2 p6 Z+ \4 D VariantInit(&pokeVariant[0]); ! f* ?5 E- D' @) m( t1 Y0 Q pokeVariant[0].vt = VT_BSTR; / a* O }# k" m, Q( r pokeVariant[0].bstrVal = valueStr;- @% W L2 ~5 C0 {% G! P
; K% Y, }. z$ h7 ~; r1 m5 O/ h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; s( k# p! U( Y4 s# G" G: }1 A, m
VariantInit(&pokeVariant[1]); : ~4 N# s+ v' _; L. F
pokeVariant[1].vt = VT_BSTR;2 K8 u$ S5 U2 c
pokeVariant[1].bstrVal = itemStr; . s8 p6 Z- M& O# ]! { 5 j* ~; e! [( @& s. I topicStr = SysAllocString((WCHAR *) L"system"); 5 W7 }/ z, D8 R$ M1 I, L7 | VariantInit(&pokeVariant[2]); ) y5 J& \0 [) N/ l+ K* i' e% }
pokeVariant[2].vt = VT_BSTR;9 @3 B( U/ J$ [
pokeVariant[2].bstrVal = topicStr; . R% y9 @: T7 V& z+ P$ ~" }" D9 L' D, }- X- y+ r0 O8 N
// Set the DISPPARAMS structure that holds the variant. ) T+ m: \$ r e$ }/ G 7 ^ E z2 t7 k G: j dp.rgvarg = pokeVariant;3 R o& T0 k% t
dp.cArgs = 3;. u2 @. ]1 E6 P! u# w
dp.rgdispidNamedArgs = NULL; E5 n8 t. r R( Z) u dp.cNamedArgs = 0;. A5 f, @6 M* g! o5 P' v. ~
$ i0 ?% p2 ^% [// Call IDispatch::Invoke() 8 ]$ ]8 o- q, L7 k; e ' T% z/ N6 r1 } hr = m_pDisp->Invoke( 2 v3 r! r2 @. |8 Q* ~0 D pokeID, $ [! G$ I, b/ _( Y+ b, z6 \ IID_NULL, & Z) h. z) U x) _ LOCALE_SYSTEM_DEFAULT, 1 f9 o. t- l( P- ~0 p DISPATCH_METHOD,5 b4 ]& }/ l7 q# N
&dp,3 C+ y+ F& C" @
NULL,4 E z/ M) k+ H; }
&ei,1 [5 c' u: d& m C) f0 |
&uiErr);# M a7 _/ _$ r% L2 j" Y5 y0 e
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SysFreeString(topicStr); ( k0 |8 x! ?! R) @/ C$ b- ^ SysFreeString(itemStr);+ E. l- [; I4 M, g/ s! [8 N9 y
SysFreeString(valueStr); + w" d: X' X. I1 I* O, m2 L, W: ]3 P' T2 `
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???; ~ ?$ @( [7 G; 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???? ' z% B4 t: ?8 Q' A! B; R( r8 P# d# h" r# i3 W
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2.这是request的程序9 @. W( ?4 K, n! |
// Request a value from Extend8 Z Z+ k; N& e, ?6 r' }4 t7 Z. S
// , U. \4 J! @% \/ h; [ q/ s// Initialize the variant that will hold the BSTR. Set the variant's 4 B. E& ^1 W) ~' ?3 s// type flag to indicate the fact that this variant holds a BSTR. Place the6 X) @7 U) I" y( g- g& c, c
// BSTR into the variant structure. . n7 C2 E8 v- z) u 7 w8 A8 J8 K9 M: S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! O4 C; ?. k4 b& M ; @* x4 u) J5 U; X8 m2 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 x; `7 m5 v4 E' a. q$ w7 I VariantInit(&requestVariant[0]); - M0 N$ I( }! l/ H0 f p requestVariant[0].vt = VT_BSTR;: F3 g+ ?/ {- u! C( g% F
requestVariant[0].bstrVal = itemStr;( j8 ^# V$ D( ]3 @: ~9 D
0 a6 x( p3 w/ k' _/ C0 D topicStr = SysAllocString((WCHAR *) L"system");+ K+ g' A' e Q8 N* d0 Y
VariantInit(&requestVariant[1]); 6 F. V* H% x# A. m% S
requestVariant[1].vt = VT_BSTR; ' j6 w- C5 ^ e) c* { requestVariant[1].bstrVal = topicStr;1 a! H* F: z3 y7 x: R1 G3 \
9 M. T7 h: q1 K) s' w( n% H// Set the DISPPARAMS structure that holds the variant. / x) `/ M; R0 Z) A% H. u( }. ]' l, m, E1 Y q" \
dp2.rgvarg = requestVariant;& ~ n1 P4 w7 ?* F3 m W
dp2.cArgs = 2; : k2 s. W0 G2 x9 N) P dp2.rgdispidNamedArgs = NULL;( X) b. p, I3 R$ R4 {. Y. J
dp2.cNamedArgs = 0;7 D" `0 I/ m9 o8 f6 h4 E
, g) K3 ]7 [, N& V var.vt = VT_EMPTY; & X+ ~* q* R' X" s [( F9 b% k+ A& I' A" P0 r
// Call IDispatch::Invoke()4 K6 r1 O9 s/ z! ?- L m
3 t& i; B& M# T2 |3 a! p hr = m_pDisp->Invoke(0 |: J9 c1 o* R( s8 t4 {4 s
requestID,8 c, y* E% N+ \
IID_NULL, + u, |) N% y# t, Y LOCALE_SYSTEM_DEFAULT, ?0 e. b. c6 S q5 A7 }& h' ?$ j
DISPATCH_METHOD,1 B% E4 f% X" ?7 J4 g% f" x. l
&dp2, 4 }& l L; A4 x* O- R- `: R &var,* N' f5 n4 n( C: u& n# N1 N A2 J
&ei, 3 ]7 ]9 [% M* N! L &uiErr); ( d" `& I. I* {3 ~7 x ) V- E/ r; ~! g2 s! Q2 y/ o8 ] SysFreeString(topicStr); ( h: m1 H3 C$ G0 M; K& Y0 k SysFreeString(itemStr); # O$ T7 ^! T% o% S3 I. r6 G0 A请问该程序是获得extend里面的哪个值? . V, K' T8 i6 N/ Q5 l% J& r# k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????