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:- g6 c. q C+ s5 O$ L% w
Name = (WCHAR *) L"Poke";# L0 w" t [, l3 `0 Y
2 A+ a5 g% {3 b3 ?+ F hr = m_pDisp->GetIDsOfNames (+ b( J- B* Z8 W( ]+ T" [7 V a
IID_NULL, // reserved m& k" B8 a/ {- F &Name, // Array of names to get IDs for6 U/ e- a. G- G7 `. @1 F, }/ |
1, // # of names in the array * P. D/ ^8 Y1 k. { LOCALE_SYSTEM_DEFAULT, // System locale $ s2 A1 h1 G& o# c &pokeID); // Array of IDs to fill on output & S7 M6 S& I' i9 i8 l- ] & u8 b$ T+ k, C) V. z& B6 m2 H
if (hr)3 O4 @ ?1 x* K
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MessageBox ("Get Poke Unsuccessful");& k6 [5 C4 v' W4 S+ M- R3 J& h
return;" G4 f2 r0 x0 N& f$ w) E# Y
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/**************************传递数据给extend**************************************/ ) s% D7 {9 F9 M+ ]& Y: M pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); u; m& A! t* k1 A! Y
s# s9 q) J. x5 ?8 w+ S valueStr = SysAllocString((WCHAR *) L"1232");- z: w/ Z8 p8 r% o! e. t! h
VariantInit(&pokeVariant[0]); " n$ X7 }9 u( b3 V" @ pokeVariant[0].vt = VT_BSTR;" Q; V- w% x% U7 ^6 G; X
pokeVariant[0].bstrVal = valueStr;' n: }2 {8 s4 f# q1 y, n
/ E/ M7 c) O& F$ u( \+ u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ c/ e0 E i) f- a8 u VariantInit(&pokeVariant[1]); 3 t/ p5 d7 L" R
pokeVariant[1].vt = VT_BSTR;+ | z2 h0 L! a, Q$ ^ G7 h* U
pokeVariant[1].bstrVal = itemStr;* v! F9 D1 k& w. C0 ?8 E
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topicStr = SysAllocString((WCHAR *) L"system");" \* @9 q" R1 T: }- g2 J& ~' D
VariantInit(&pokeVariant[2]); K' z# i5 v: ^, N- H/ ] pokeVariant[2].vt = VT_BSTR; 4 n1 a" j" S' L1 O4 ]: y4 V+ ] pokeVariant[2].bstrVal = topicStr;' X+ L% n& W2 ?( T. o2 `1 Y& `4 a
; }/ G6 m8 ~, Z; L4 O4 a5 @+ G E// Set the DISPPARAMS structure that holds the variant. & g: ~9 h2 |8 J+ e. W2 a, g2 _8 ?- K2 c9 H- Y
dp.rgvarg = pokeVariant; 1 |& h9 |% {$ X! a& e- d dp.cArgs = 3; ' ]+ g$ N5 j4 E3 N6 F$ ~ dp.rgdispidNamedArgs = NULL; ' d0 V5 e$ z2 J' ~$ @+ W8 O7 w dp.cNamedArgs = 0;4 M N& r; w# y m3 O' z2 ?
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// Call IDispatch::Invoke()1 u. ^' r# V/ Y8 I6 W( K
3 K3 E2 x0 G* _# T, h, ^* |* W9 r hr = m_pDisp->Invoke(/ _* M: q" m+ Y+ w% u$ b- I
pokeID, + ?' b) d, G) g2 }+ L, d IID_NULL, 0 E, d) X6 V/ ?' w) T LOCALE_SYSTEM_DEFAULT, % ?! Q; E2 H6 k2 N: e DISPATCH_METHOD,) O& U0 F* A! W3 t" [
&dp,. G. w6 X* |. b& m7 i
NULL, * }2 ~% s6 i: z: C/ X &ei, ' Y+ U# p2 Z9 g# } &uiErr);) d. n' D6 e) o- n1 z, e5 x$ B
8 |" H" X4 o: b2 e3 s2 w/ B6 N& O SysFreeString(topicStr); 3 D2 O Q5 }4 b0 O; c' M1 r- I" h3 Y2 _* ` SysFreeString(itemStr);- l& w( P" w/ f5 {
SysFreeString(valueStr);3 U" u. N1 S$ P" b d' [$ x) e' c
& A% F6 O2 w' ?$ N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??? 3 J" {4 v- s' a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????3 x- I( ?( A* f2 [# G
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2.这是request的程序, F$ g/ G- m R: v
// Request a value from Extend) |( l' u: c D) Z7 @' _
// 3 Y1 h# v8 G) P// Initialize the variant that will hold the BSTR. Set the variant's ; a5 P& V- E, N4 r# o7 ~- J0 l- |* y// type flag to indicate the fact that this variant holds a BSTR. Place the & F* [& L1 Y. Y" U0 i// BSTR into the variant structure. : `$ d5 T* F/ I6 p- b5 |' ]: z7 m; Q+ O' j
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 \7 M" n( }# _. I8 a7 g1 H , Q# `, C4 u: z f( l! |# V W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: @! @/ G0 _: t7 l2 }
VariantInit(&requestVariant[0]); 4 M% H6 `5 J1 D requestVariant[0].vt = VT_BSTR;# f4 L7 n' p; X* ?$ b4 G) c( p
requestVariant[0].bstrVal = itemStr;5 K7 x- ~( S5 E! j0 a
1 i! `- R! g5 F; V& p. x6 {) h4 S! v topicStr = SysAllocString((WCHAR *) L"system");; m( U, }; a0 @# ?
VariantInit(&requestVariant[1]); 1 _! k( g( R. z( u3 b z
requestVariant[1].vt = VT_BSTR; + `$ Z, |% S6 E requestVariant[1].bstrVal = topicStr; 9 s8 ?: A1 K! ~: s1 U7 e7 r. f6 Y ?# ]1 {; \7 i5 B1 p6 Z
// Set the DISPPARAMS structure that holds the variant. $ w+ D+ r r$ r( B# }- @1 {+ H$ A' F9 p5 k& G6 m ] e
dp2.rgvarg = requestVariant;) M! a% y6 X3 G% b
dp2.cArgs = 2; ! h2 C; Z( V" ^! ^2 X; Z! S dp2.rgdispidNamedArgs = NULL; # ~1 T, U" C m) X2 w5 {& N& J dp2.cNamedArgs = 0;8 ~$ P8 u- d$ P" l" L, e4 L8 |1 @! i
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var.vt = VT_EMPTY;' R7 F4 F/ l3 {% K4 k/ [5 d9 t, `
% F7 x* j0 x0 ` a' B// Call IDispatch::Invoke()- O4 p9 Q8 G9 n; N3 j: ]$ U
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hr = m_pDisp->Invoke( " o5 q- Q5 g4 }& P) _ Y2 l# O requestID,& x! n! r. k- t$ C, }, E
IID_NULL,, X% Z, R* V9 i+ i* N
LOCALE_SYSTEM_DEFAULT,- |9 n. w/ U3 _
DISPATCH_METHOD, / a' F% ~0 ~- N1 x& w( U* _ &dp2,' m7 t1 c/ O `- W/ d, ~. r/ R
&var, - B: i4 ?' J$ f8 b &ei,( {9 B& B6 a! y9 Y' [
&uiErr); 5 b' C/ d# t+ {4 H3 b3 P5 E$ n$ ?$ Z# G C3 ^% o
SysFreeString(topicStr);+ `7 x: I V- n0 D
SysFreeString(itemStr); ) F: k/ [9 j. s请问该程序是获得extend里面的哪个值?2 ]% @) |0 w; d( ]5 R9 n
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????