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: * g5 d9 L8 {! C! DName = (WCHAR *) L"Poke";# F- l& ^& E7 L+ z% f2 a- f
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hr = m_pDisp->GetIDsOfNames ( % W" O* m& T8 R) r ]. n* ^ IID_NULL, // reserved , n7 l. U) \3 v: Z &Name, // Array of names to get IDs for1 E [5 s2 R% g- v, H0 [
1, // # of names in the array 8 r. f4 M6 n6 P0 o3 r; j. X LOCALE_SYSTEM_DEFAULT, // System locale, h( _1 @* ~, B) E
&pokeID); // Array of IDs to fill on output ) u: |$ e e/ C! w& E" r # |* r% @- n+ [' T8 g/ v if (hr)9 i2 e8 ~' {/ N, n
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MessageBox ("Get Poke Unsuccessful");% I% Z- _1 f3 T" Z. y) v
return; . h/ V; o) _# A8 n4 W7 y% D- f } " J# y4 p5 ^4 H) t5 K( W1 k5 _" F9 B$ c1 v9 q9 W
/**************************传递数据给extend**************************************/1 w2 n4 r" }7 I X% _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 q5 _0 ^/ o/ }6 G6 g! M- ]7 q/ I # [# ~6 `1 S6 q; L
valueStr = SysAllocString((WCHAR *) L"1232"); 3 T7 n0 Z) W+ p- f" @4 A5 P VariantInit(&pokeVariant[0]); 6 S- W: ?& l+ c$ K, G8 H& Q pokeVariant[0].vt = VT_BSTR;. Z$ ^6 R# F. P1 E6 A9 [6 x
pokeVariant[0].bstrVal = valueStr; . y% g0 | w% N% ^- H$ ~ 9 v7 ~* o$ Y5 n% `4 |( U0 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" k2 C% K# s! a# v
VariantInit(&pokeVariant[1]); 1 h2 x z( v9 C pokeVariant[1].vt = VT_BSTR;0 M" S3 f7 ?5 K! n' [, g' _) F H
pokeVariant[1].bstrVal = itemStr; 0 f0 A: T' J7 h. k/ O% Z5 l 9 y7 g! f# P q8 N$ D _' h topicStr = SysAllocString((WCHAR *) L"system");) ?2 k4 l4 p' q
VariantInit(&pokeVariant[2]); / }) k. S6 a1 ]2 T pokeVariant[2].vt = VT_BSTR; ! u& u l W9 K m# \$ n pokeVariant[2].bstrVal = topicStr; 8 A* A% k c# F+ E O9 J $ z, e3 k4 S9 B7 D4 [# N2 F6 H3 |// Set the DISPPARAMS structure that holds the variant.$ _* ~/ O' ?! E y
/ [0 [ }9 t$ Q dp.rgvarg = pokeVariant;4 _5 y7 w6 I* I7 c6 i V
dp.cArgs = 3; X4 C& x9 W" r: g& S# p. d+ g
dp.rgdispidNamedArgs = NULL; 0 [; F; a K/ l2 F( I: Y dp.cNamedArgs = 0;* G/ m2 X! s$ E& Y
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// Call IDispatch::Invoke()( B+ d! k+ ^: K5 J8 `. F' s1 T
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hr = m_pDisp->Invoke( 1 c$ g( Z: r$ |$ F8 y# C" O/ t pokeID,! R% Y1 l T4 ~% {6 T# s
IID_NULL, 4 e; D1 |7 ~* I2 s1 z$ a LOCALE_SYSTEM_DEFAULT, 5 ~" ]7 N$ H; h! Z8 h( j4 L DISPATCH_METHOD,* R$ Z3 |; J T( |, Y& V* b+ o
&dp, 8 K0 c) X" b$ L2 H- @ NULL, ' K9 w8 v$ D) T &ei, - G3 z5 Y- c" ~- W" } &uiErr); }0 ?9 c6 l/ v* [ . v" T$ E9 N8 Q6 ~ SysFreeString(topicStr); : P, ^ m* L3 a. x5 \( k SysFreeString(itemStr); 0 h$ z/ i; a: [! k7 U, z SysFreeString(valueStr); ( M2 z# B7 ?7 V9 Q$ u # w8 W8 E r) `3 K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??? $ F( @7 [' Q/ P' P6 U5 ?! C% i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???? 6 {' t6 s4 B4 }( b6 @3 R! _: J5 e1 g0 o4 `* d
6 F/ r' m9 Q3 O/ \7 ^. j# n2.这是request的程序 0 e g, A4 A3 }" E/ S9 W4 J// Request a value from Extend. |; S) X9 F1 b- n
// + k( a$ \- \, \// Initialize the variant that will hold the BSTR. Set the variant's# O" t4 z8 K- i( ?
// type flag to indicate the fact that this variant holds a BSTR. Place the& u9 R' i* C! l- H8 t
// BSTR into the variant structure. 0 y/ i: n8 B H/ p4 [& _* m# ] P. h- Q+ D! M& |1 n
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% {7 ?6 {/ k' O- T8 m6 y
" z2 E% R! ]4 H& p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 j& D1 S: u6 }" l9 C
VariantInit(&requestVariant[0]); " D& d* D; W, ]5 ]( F% R3 Z# a requestVariant[0].vt = VT_BSTR; $ ?3 S0 n& Q G9 T5 ?/ { requestVariant[0].bstrVal = itemStr;& y% n0 K$ C' z" d3 l
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topicStr = SysAllocString((WCHAR *) L"system");+ p. ]5 L: t% f: c% F
VariantInit(&requestVariant[1]); + W, u) o* a: S! R3 u T" N
requestVariant[1].vt = VT_BSTR;. f( r- I* G7 @* ]
requestVariant[1].bstrVal = topicStr; / v! X T; Y5 o* h. n: m6 m$ k; X7 j8 ^. [$ [- B# v; r
// Set the DISPPARAMS structure that holds the variant.& Q9 |* Z# f9 S m, ~( x0 ^4 J n
6 n' B& O' U* v% _: {% K! d dp2.rgvarg = requestVariant; # s! E7 h, [6 |! L% n! }4 a" C \ dp2.cArgs = 2;) w7 ]; E: R- x! w4 ? o u
dp2.rgdispidNamedArgs = NULL;5 W# g$ I9 o! t1 E7 F# S3 T, Z
dp2.cNamedArgs = 0; $ C8 N+ B9 P5 D* R' Q; u 4 |6 j( ?$ i# i& ?& e! ?7 b var.vt = VT_EMPTY;# y0 b6 G3 L: o0 }
, O9 C' F# b. {7 q5 r// Call IDispatch::Invoke() " g2 C" z! V$ n0 P 3 ]* E7 Y. [( f! ? hr = m_pDisp->Invoke(# G' O1 X) ^6 Y; ^" j' A
requestID, ~4 q8 Y, ^: g0 ~
IID_NULL, 7 K/ T- d& _( |8 K LOCALE_SYSTEM_DEFAULT, : `. }- o/ I2 u! T5 o5 x) b DISPATCH_METHOD, d9 L; Q3 a6 s! y: n8 {( z
&dp2,. ]3 ]0 q; U6 n2 p# a+ y9 f0 E" f
&var,* o4 L% i: }2 h% |. r
&ei,, p/ }! W1 o2 M5 V9 S
&uiErr); ' X1 F. Y- d( C# F8 ?/ `2 v2 o: Y
SysFreeString(topicStr); / }5 D- ~. k' |% ]4 P4 \ SysFreeString(itemStr);/ |' t9 _8 F5 N3 k3 e
请问该程序是获得extend里面的哪个值? # o: j( U5 ]* h* }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????