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:* e' u9 U6 V7 w# \' B$ _. e
Name = (WCHAR *) L"Poke";% E. T& a6 O* Y8 Q2 c$ c
& N7 ~8 T1 Z. Q; U# Z) r- K* R# c hr = m_pDisp->GetIDsOfNames ( % d& n1 l. l0 c- j3 U IID_NULL, // reserved % X" \) E0 \0 `! X/ Q &Name, // Array of names to get IDs for & R: k# n3 B% B2 x 1, // # of names in the array7 V3 z( a! Q- i) o# h k
LOCALE_SYSTEM_DEFAULT, // System locale - d. p) o) e9 D$ K' y- h+ |, I &pokeID); // Array of IDs to fill on output 1 p* `7 j9 ]' @# N3 ^8 w+ F7 U - m& i4 u h3 U# }5 s2 A |3 \ if (hr) , k! a1 I% Z9 E y5 ]' Q { # h, I5 N" W5 {6 X- V0 Z MessageBox ("Get Poke Unsuccessful"); / Q1 r" i% K: S, Y; ~7 B" S return; 5 q' ]$ S [6 y3 K! n! j } 1 z7 I& K5 a! J5 b# Y8 A9 ^3 f0 m5 `- ^, O" ^7 |
/**************************传递数据给extend**************************************/ / ^' C! ?+ }( l0 h% w2 R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 c% S0 \* X6 U1 C8 v* S' ? 0 C4 Z# H5 y X% V7 U valueStr = SysAllocString((WCHAR *) L"1232"); 7 k5 h, }5 ]9 d* s, b" m7 o* I VariantInit(&pokeVariant[0]); , o8 b6 P* l5 I5 R& B pokeVariant[0].vt = VT_BSTR; 6 H" X6 q: D4 X/ N* \5 j$ `* I pokeVariant[0].bstrVal = valueStr;" b0 ^9 t- K$ L5 S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 r' F, F _" e/ x
VariantInit(&pokeVariant[1]); 0 d/ j$ b. v( V4 d, H$ E
pokeVariant[1].vt = VT_BSTR; # u3 _1 m# W) ?) C pokeVariant[1].bstrVal = itemStr; % x6 Q/ C6 Y. A: u ; P" W( R' ^* ]' H* D9 i' } topicStr = SysAllocString((WCHAR *) L"system");% `9 X4 Y/ H8 }% d* w
VariantInit(&pokeVariant[2]); 4 t$ m( I j$ y: J1 ~ pokeVariant[2].vt = VT_BSTR;! z# R5 i ~2 |$ Z
pokeVariant[2].bstrVal = topicStr; + H' Y3 f1 C2 Q, I% h7 i3 b. a! K3 H8 Z8 w$ [6 N: J; P
// Set the DISPPARAMS structure that holds the variant.4 u/ m6 [3 F+ b+ _5 g' h* Z
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dp.rgvarg = pokeVariant; $ \- Y. ] x3 [% g6 F" ~ dp.cArgs = 3;+ g3 v" ~- z. U) S f0 x( \
dp.rgdispidNamedArgs = NULL;6 k# B5 f3 b; p5 i& q
dp.cNamedArgs = 0;' h- ~9 S$ e" w7 X/ B
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// Call IDispatch::Invoke() ( P; X* x( [( A0 c/ G) X+ s7 T % M# H C; u/ B* c& W' c+ y- V. J hr = m_pDisp->Invoke(8 p) b6 V1 q' A# q8 ~
pokeID,6 J! A* [4 N( l3 J' B
IID_NULL, # Q: X/ f) @0 j& @* o5 x LOCALE_SYSTEM_DEFAULT, ! L1 F9 ~! E5 Y DISPATCH_METHOD," \2 T; g C2 A( g) q
&dp,9 N' i/ i, D4 \3 Q8 W! _( a
NULL,1 G' Z7 {. } l5 W" T& ^
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&uiErr); 5 |) `- S& _1 u1 ]# [, y 9 M" Y( j- b9 [! r5 e* B SysFreeString(topicStr); + A7 M! {2 J0 X) b6 g) B SysFreeString(itemStr); 4 N1 y! \' k+ |/ ]& t$ W" F2 i: h SysFreeString(valueStr); r" x# D @. r" `5 {
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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??? 8 G* N* G3 b- m) l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????7 h2 v# Z. b2 V8 j* M) G) E6 u
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2.这是request的程序2 r) {$ x7 A+ t' i, d4 G# J
// Request a value from Extend / r# ^( l3 p; Z* A# h, P//5 S5 L" z9 v- w# V0 C* _* P+ m( q
// Initialize the variant that will hold the BSTR. Set the variant's ) H1 A: Y4 V- a) |1 G8 N- R% p% m// type flag to indicate the fact that this variant holds a BSTR. Place the9 _# W9 }% ?: i, E+ i; u
// BSTR into the variant structure. 0 w/ j2 J7 q' U7 E& M# I5 r4 x* G0 U# k: `7 I8 A% T+ @9 x8 n7 A
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) s4 D5 |, i6 X
6 H3 g6 z5 X. V/ W5 b9 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 q3 }3 ]8 `2 T/ G: @* b VariantInit(&requestVariant[0]); ' t* B' g3 o% R4 n% }2 P9 J requestVariant[0].vt = VT_BSTR;$ C0 e& J/ b. ^* N; l
requestVariant[0].bstrVal = itemStr; " n4 L( u* Y* y3 ]$ U- y$ z w8 t# m" _( y$ J$ i topicStr = SysAllocString((WCHAR *) L"system"); 1 o* b" k( n" C VariantInit(&requestVariant[1]); ' A% i+ i, l9 Z" u1 O H
requestVariant[1].vt = VT_BSTR;- m# o. T3 G3 N4 U4 B
requestVariant[1].bstrVal = topicStr; # @! s9 r/ S- h9 c1 N! {1 W $ T% X( e, `. u8 E) p/ P// Set the DISPPARAMS structure that holds the variant.2 L; w \5 S! ]7 E0 ]
9 J% r! y% x# Y: C+ E$ ^% f dp2.rgvarg = requestVariant; ; k" W9 p, x* Z( g# e dp2.cArgs = 2; . m) k0 x" C3 A0 F" X dp2.rgdispidNamedArgs = NULL; * A6 n! `7 w5 I' d% W m2 S dp2.cNamedArgs = 0; $ g1 M2 J4 w9 j9 c' _6 |0 p1 r2 a- j' T* l3 j. m$ d* j
var.vt = VT_EMPTY;& \( o2 l& @, R1 S; s
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// Call IDispatch::Invoke() 3 d$ S- m/ t* Z3 v" R6 X: ~$ j5 r& Z' e: J) \% {
hr = m_pDisp->Invoke(* |; b" ^8 Z! W/ {7 Z3 h. }/ g3 J
requestID,' z( d; ?. N6 I+ g1 D& G
IID_NULL, 2 J* ?) b4 C* c# |! {. ` LOCALE_SYSTEM_DEFAULT,/ G% I" f3 H* a; U( ?6 p6 c
DISPATCH_METHOD, ! n) {2 H T1 ~ &dp2, 8 w/ B7 O D' M4 X% u &var,! ^% s! j0 s$ _4 E0 _9 K; {) j
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&uiErr);9 y g; S- a4 X1 |; d
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SysFreeString(topicStr); 9 ^) ~" ~2 s" z& A. w' _1 w SysFreeString(itemStr);. g; N& L) \( Z
请问该程序是获得extend里面的哪个值? ' g4 m8 N3 ]* G/ g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????