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:$ c$ R' A; C3 m1 A! W0 x, n/ ?
Name = (WCHAR *) L"Poke";9 Q: X6 v7 c, }1 p1 T
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hr = m_pDisp->GetIDsOfNames (1 u$ F* }# Q! X/ H
IID_NULL, // reserved" x! p- c0 Q- G
&Name, // Array of names to get IDs for/ n) s! N1 M8 S
1, // # of names in the array2 f m9 H( I; k3 e4 ]1 x
LOCALE_SYSTEM_DEFAULT, // System locale+ e3 a r: Q i# f( L
&pokeID); // Array of IDs to fill on output4 G2 {9 i/ T+ L0 g& \' e0 n
6 k, X6 n+ D* [8 I, R4 H if (hr) ! S1 r; F2 R; F8 C! t; F$ u9 P. [$ g { n! V2 p0 h8 Q; n MessageBox ("Get Poke Unsuccessful"); ' @" [$ [: K$ I return;+ x/ o) f' S6 P5 R8 u3 D8 o3 e
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/**************************传递数据给extend**************************************/- ?2 A2 j7 `! ]1 q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ q5 o0 _2 G( m5 t' V : `1 S8 ], X! O& | valueStr = SysAllocString((WCHAR *) L"1232"); / x: G: Y, u2 f VariantInit(&pokeVariant[0]); ; c( k) s! W+ D7 a5 E pokeVariant[0].vt = VT_BSTR;+ m9 ~* D" u Y0 ]# c6 L
pokeVariant[0].bstrVal = valueStr;4 b, U- R" r' o% c7 i8 g
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! C6 r* W/ R/ q
VariantInit(&pokeVariant[1]); + E! g+ L" P% P8 a5 T
pokeVariant[1].vt = VT_BSTR; 2 ]& S# M9 v% T3 H0 _ pokeVariant[1].bstrVal = itemStr;, ?9 i+ b2 d" j$ u% w! j1 w8 D+ F
# }8 N; \' Q% H topicStr = SysAllocString((WCHAR *) L"system"); # O, H0 E, t( g; ^! E" ~9 W( p VariantInit(&pokeVariant[2]); 9 r/ \9 \5 ?4 S pokeVariant[2].vt = VT_BSTR;! o s$ {- e6 J x% _
pokeVariant[2].bstrVal = topicStr; 1 U8 B- O( C6 [2 H) |0 U* \& J9 D1 s* J
// Set the DISPPARAMS structure that holds the variant.# H. O" i4 |: H
, Q( L2 p7 c/ \) {: ~+ q' M" i dp.rgvarg = pokeVariant; 1 R# v4 V- O0 d, u/ o7 Z+ C dp.cArgs = 3;0 T$ ^# v) I/ @, L
dp.rgdispidNamedArgs = NULL;2 m1 h! w) _+ p/ h. Z1 s' D
dp.cNamedArgs = 0; ! R- j: V! b" l9 F3 B3 w+ l1 g; V# v" u; r5 G8 r
// Call IDispatch::Invoke()5 |: x! s0 b% a% S# E
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hr = m_pDisp->Invoke( ) U0 Q2 f' c/ g) r$ q4 s/ N( [. U pokeID, @( i' M9 L- d" Z3 O' x IID_NULL,- u9 ^# l0 u2 g/ ]3 K9 P* B7 f( T
LOCALE_SYSTEM_DEFAULT,6 D6 N O0 U+ p0 _. @7 C- Y5 C5 T2 k
DISPATCH_METHOD, + n8 Q2 y$ N' Z& k' R/ o" N9 F &dp, . ?# F6 g+ N9 `3 u, B, G NULL,1 S; O9 Z/ Q/ v1 M8 E/ k- D* Z- O
&ei,8 O* Q/ f2 ?8 E' P8 L( l5 z/ p
&uiErr); 3 t) l( j+ z" ]" v- W( j" K1 |# z5 x3 E* N
SysFreeString(topicStr); , b2 @" l; ^; B; H6 A' q1 v$ R SysFreeString(itemStr); g. ^5 Q1 e+ r* A8 V
SysFreeString(valueStr);: E9 n$ E+ f8 r) w% v* Q4 Z( Z
: H7 P L/ n) Z# ^- F- y7 Q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??? ( b" o% K6 e' p5 W4 l0 w& 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????' Y0 D) m$ O. ^, X! K) m" i; }: V
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2.这是request的程序 + ?4 N; R1 H8 Z// Request a value from Extend) M" m; D! z2 \9 F) s6 R; R
// " u( H l5 o9 f& K+ Y( ^+ g; t0 y// Initialize the variant that will hold the BSTR. Set the variant's4 T! [) k5 P9 C* G
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 Y4 f# u5 u9 b- ?! z/ D9 ^// BSTR into the variant structure. : P3 R- D. G3 I, M; W4 w, j- S& A3 y6 Y u6 U1 `- b
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ }, M; E1 ^% ~9 v6 f! D3 ]
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- o- Q# K4 i( o: p y) M
VariantInit(&requestVariant[0]); $ h3 h) k2 Z( d+ e1 i; ~ requestVariant[0].vt = VT_BSTR;7 L& C3 i1 e9 J" D' a
requestVariant[0].bstrVal = itemStr;8 c/ Q" D. K6 ]4 {1 [
4 n- C. B: z, E; @2 G! ? topicStr = SysAllocString((WCHAR *) L"system"); $ g3 s% }* t! j1 M1 H# n& ]1 | VariantInit(&requestVariant[1]); ) \; N. v @1 m# s; Q$ O requestVariant[1].vt = VT_BSTR;( S: x( U- o. a3 i7 b
requestVariant[1].bstrVal = topicStr; 8 B0 y. T! C9 a# p& y7 {! f+ o; o
// Set the DISPPARAMS structure that holds the variant.: m: J7 x- ?" G
& I8 U. Q3 z% [2 E7 T4 b dp2.rgvarg = requestVariant;& W0 ~* ~0 Y V9 F
dp2.cArgs = 2; 0 ?( j3 y9 Q( O! | dp2.rgdispidNamedArgs = NULL; 6 I) y4 z9 j2 g; @6 i dp2.cNamedArgs = 0;5 r) i2 \; w& x5 H# B
/ D" T% S+ D8 I* I& v6 R var.vt = VT_EMPTY;9 Y! n9 q+ n2 I
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// Call IDispatch::Invoke() ; a$ N& d% {, Z8 w9 Z5 N! K% V& [0 s' m. n
hr = m_pDisp->Invoke( # i) H0 m% N0 U& \. f- r o requestID,% l/ A) E# q2 g, L/ I4 }# t' J: V
IID_NULL,3 _6 m' E3 n# O) ^
LOCALE_SYSTEM_DEFAULT,9 j% s, ^8 c9 _7 |6 V9 l$ l
DISPATCH_METHOD,1 e4 B3 y( W$ Y. b3 n
&dp2, & f& y3 g7 t0 _- |% T. ` &var, ! w4 P* e/ H/ N6 _* X6 ` &ei,) U- O, g/ w7 ]
&uiErr);% [1 e1 t" ` x* C
8 u- t4 p R, a P- S; \2 w SysFreeString(topicStr);) ]8 U- @2 g- o, ?
SysFreeString(itemStr);. K6 n2 i% _% Z+ D" r
请问该程序是获得extend里面的哪个值?+ h5 B* L7 x0 v4 Y1 @" A6 i
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????