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:- @+ F' w, w: q' ~& L. n
Name = (WCHAR *) L"Poke";& _5 S, m) e0 a* k4 a: |
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hr = m_pDisp->GetIDsOfNames (3 y2 z2 _4 B6 U w4 T
IID_NULL, // reserved5 |/ H: Y- G( C
&Name, // Array of names to get IDs for% B0 M9 [- m+ L6 U% _
1, // # of names in the array ) }! {8 h5 U) m$ u% t7 [ LOCALE_SYSTEM_DEFAULT, // System locale : b" J6 e- K* j# P' C &pokeID); // Array of IDs to fill on output 6 ]% B' M% u* `, q* n' L! I- O7 ~5 Z # V$ E; L* h- X- G% c
if (hr) : q6 v& s+ k7 C) O1 X {, }. l$ `5 K- Y* R, d
MessageBox ("Get Poke Unsuccessful"); % r: J" [% s, Y9 r8 U: Q; }. d: ?! v return;1 f( [! y' ?8 w
} 3 ?( S0 C- v( Z$ y! `8 `; [0 \% Y: {. n$ e4 F N
/**************************传递数据给extend**************************************/ / y: ?0 z9 X, R2 L/ W! F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) A9 X( s, p+ D6 w
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valueStr = SysAllocString((WCHAR *) L"1232");, a) z2 q5 J# Q) O4 y' Q
VariantInit(&pokeVariant[0]); 3 L7 S6 `- h) p9 ]$ W
pokeVariant[0].vt = VT_BSTR;6 w) z3 ~/ A( N
pokeVariant[0].bstrVal = valueStr;* D' j) _6 M1 d& W4 o) t. N
$ F# z# S8 x! i* Q2 A* l1 g& M r6 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 z1 I; u. z! t" J VariantInit(&pokeVariant[1]); . D. s, M, n5 b
pokeVariant[1].vt = VT_BSTR; 2 Y7 C( b; q8 q/ H. h: ?! R pokeVariant[1].bstrVal = itemStr; : M* b5 D* n$ b7 ]( e 0 y9 H* i# i7 {; S" p topicStr = SysAllocString((WCHAR *) L"system");; k- {8 D9 m2 H, x% @
VariantInit(&pokeVariant[2]); 5 ?- V$ e: M p. d! u: E, l
pokeVariant[2].vt = VT_BSTR;% }6 E: j3 ?4 j6 c: ^% K
pokeVariant[2].bstrVal = topicStr;2 b8 I- r9 t1 ` A$ T
2 E$ h: }* h+ e& y# B% ~// Set the DISPPARAMS structure that holds the variant. ) `: Z$ ^/ U- W7 Y1 q! ?) Z9 [ 9 _( U0 v2 U5 }3 S9 X dp.rgvarg = pokeVariant;) ]. U' y# {' f7 k! j) C* U
dp.cArgs = 3;, W: O0 I# {% L1 C% t
dp.rgdispidNamedArgs = NULL;- ?2 D5 f8 N, m8 P7 s7 X- z% g
dp.cNamedArgs = 0;. f% T) g" P$ P$ _
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// Call IDispatch::Invoke(); }0 Y" a7 x+ y( h" i
! l9 p; G5 K! p4 r) U2 D Y hr = m_pDisp->Invoke(3 `$ C# N3 R' E3 X4 c
pokeID,3 e# m7 h* u' r: N/ H
IID_NULL, 9 P i3 W" X$ \9 W) b LOCALE_SYSTEM_DEFAULT,2 s' S/ i+ G- [% i3 [; h" P6 V1 }8 z
DISPATCH_METHOD,3 p8 D5 ]0 Y! G A% i: |* G3 k. Z2 W- k
&dp,8 U7 c" _3 \! }8 R$ e0 r7 r! K
NULL,# f& k/ y4 d- H
&ei,6 K3 Q* G: Q- z4 w( V8 l4 k
&uiErr);6 G2 G/ a) d2 |; b0 t4 b
" Z3 m+ K: e& N& F SysFreeString(topicStr);+ G2 ]6 W- J& k" z
SysFreeString(itemStr); " t) N* \- Z* \/ r& [" P SysFreeString(valueStr); ! k& E+ p9 X. ]; y6 r0 [; v, m' y6 _2 c f5 O4 t
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???+ D# y' u+ `$ F. }/ Y- 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???? $ c* s1 v' N; G) V( l& Z* x0 m, q, C" q, N& C
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2.这是request的程序: d/ j# p+ g$ q
// Request a value from Extend ( ?( p! |, t' u: y& g6 b$ @' |, u//: o- ]* g" E, V& a+ P. S8 X
// Initialize the variant that will hold the BSTR. Set the variant's + `4 N ~) ` O0 o0 B% m F// type flag to indicate the fact that this variant holds a BSTR. Place the' \* x. e4 p3 a' }$ x j; Z A, Q
// BSTR into the variant structure. $ {! N4 r5 W* P1 A, n0 A2 R0 x2 B6 D Z p9 @9 n
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 h# ?" W* x6 h5 @' Z4 B% u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # d8 Y& F5 ?/ x B4 r4 G0 y VariantInit(&requestVariant[0]); 4 f$ v1 G) E1 h0 c+ M7 o8 j9 c
requestVariant[0].vt = VT_BSTR; 2 [# K* x: a8 N& M! A# m requestVariant[0].bstrVal = itemStr; & s& _. ]0 e' ~" \+ E 1 V& ?. v, a. M topicStr = SysAllocString((WCHAR *) L"system");. v* W: S( x ^# o: T+ K
VariantInit(&requestVariant[1]); ) C$ |( x( J; A, t6 }# \. K requestVariant[1].vt = VT_BSTR;% o9 ~+ |8 ?/ g$ F9 X4 e |
requestVariant[1].bstrVal = topicStr; 6 s5 [1 A+ a7 S# ^ ( g A6 f; X: t8 U6 a$ L) k// Set the DISPPARAMS structure that holds the variant.! m6 U) k' U" ~. k- G) F w5 J
! r) a8 {& y: u0 }3 _( }7 ] dp2.rgvarg = requestVariant;: m" i+ ?* i0 m' e9 G; T
dp2.cArgs = 2;% E% N; E6 M# B# k, Q A F
dp2.rgdispidNamedArgs = NULL;9 q7 H2 c, T4 H! O" R# s
dp2.cNamedArgs = 0; + Z& q8 X- E5 A6 [5 v! b4 S 6 u' r' d0 O' l% K) J9 h7 X/ ? var.vt = VT_EMPTY; & W% |2 [$ Z* ]0 J9 |5 i9 \1 v9 R: Q/ ]8 F; a. p
// Call IDispatch::Invoke() ; h. X) D' |9 q8 Z 2 M' y" |) W" l0 Y& T' n4 \9 C hr = m_pDisp->Invoke( 5 j( ~# X6 X; Z3 ~4 F& I# A requestID, 0 i, }1 c5 r w5 S IID_NULL,. a% t9 W9 i4 Q, N0 v& @" a
LOCALE_SYSTEM_DEFAULT, 2 |: g) D& d3 I2 v DISPATCH_METHOD,$ w7 M$ ?& Y2 N$ G5 ?, S4 z9 K
&dp2, 9 M7 c; A) M6 F &var,7 P+ { o5 a6 k5 l+ m9 r1 f
&ei,$ k! ~% _8 W/ o
&uiErr);6 r' M c5 ~# G |
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SysFreeString(topicStr); - s; S3 I' I- V8 A! L3 x SysFreeString(itemStr); - ]+ B% o- y$ f: z, ^请问该程序是获得extend里面的哪个值? - `' r K: E4 _" u2 o5 b e; 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????