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: 0 z" T( [( Y0 a8 @- `! L) R4 jName = (WCHAR *) L"Poke";& \' k( ]3 s; |3 S
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hr = m_pDisp->GetIDsOfNames ( ( o# X& a0 f, y7 ~+ Y& w IID_NULL, // reserved: _5 U5 X r* }8 _! b0 g& a
&Name, // Array of names to get IDs for2 C2 R5 n! z# V: A) U' s \
1, // # of names in the array! Y6 B# n8 U6 f$ C
LOCALE_SYSTEM_DEFAULT, // System locale4 a' B- E' n6 ~. K. M. J
&pokeID); // Array of IDs to fill on output; Z5 o$ _% m. y" Y
5 x6 w# E0 N3 Z. J# E) J5 n if (hr) % v- A4 w6 k6 o7 B$ k { + t9 N: D' B7 n+ a+ W. ~: \# O MessageBox ("Get Poke Unsuccessful");& @. Q z! ~2 { R4 G# {8 B
return; % r9 M( v& t4 G p. M4 x' T. R } 3 a) T% ^0 T' W. t' u( n+ P9 D0 i {7 }1 u+ o- [0 \
/**************************传递数据给extend**************************************/ ' P+ ]+ H; p, N. r5 i3 S1 E( V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 ^" e( N& h" a9 p
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valueStr = SysAllocString((WCHAR *) L"1232");1 P/ J2 W6 d, h5 `) R' n& @
VariantInit(&pokeVariant[0]); / S$ \' f! g1 I1 q9 c; B9 p7 q pokeVariant[0].vt = VT_BSTR; " _3 q* ~$ m0 }$ L9 [! ~& Z. y pokeVariant[0].bstrVal = valueStr; ~; l! d& k$ J4 m( s( T& ~
# s' Y7 U0 U. l" Z9 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 o8 v& e- _8 R7 Y( x j8 y
VariantInit(&pokeVariant[1]); $ T% t" j. \3 n; Z: H; i
pokeVariant[1].vt = VT_BSTR;6 t6 L( V) p7 f* F
pokeVariant[1].bstrVal = itemStr;& Y2 Z6 K# `/ R* i7 V# Y
; a6 J4 j6 y4 f1 n t; Z' Q topicStr = SysAllocString((WCHAR *) L"system"); $ z% K$ P; L+ ^4 c9 v VariantInit(&pokeVariant[2]); 7 L# G: i" I7 x4 n; V$ ?# z! J6 j
pokeVariant[2].vt = VT_BSTR; M' t! T T) Q. ?% w: u. m3 o3 s pokeVariant[2].bstrVal = topicStr;8 c" a5 E% ~/ a, [
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// Set the DISPPARAMS structure that holds the variant.( P; \5 G1 t( i' _) r
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dp.rgvarg = pokeVariant;1 Y! `* W& Q7 I- i' ~
dp.cArgs = 3; / Z9 y/ N- ?# h6 Z& E dp.rgdispidNamedArgs = NULL; ^( T0 E! t' n' V' z: y# s& S# V dp.cNamedArgs = 0;2 ~6 V! m' |# E
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// Call IDispatch::Invoke() 4 R* i# N. F$ s0 R& u4 y% V- R5 X: n6 i! g J5 {% Q! L
hr = m_pDisp->Invoke(4 p$ M5 q, ~ h2 J6 x( ^3 I: U
pokeID, / n( o. Q* o q4 G, n* a$ [2 G* R IID_NULL,0 N% V9 `$ ?0 q
LOCALE_SYSTEM_DEFAULT, A4 j' l: C& _ DISPATCH_METHOD,, y1 Y' _3 }: J
&dp,* E$ W6 d2 B! C1 q. r, k9 }
NULL, 1 E3 y8 B: t( n q8 L2 A &ei, ( N3 v* J7 X- a- v) B3 [4 W, S &uiErr);/ K& ]% q9 E# o+ u3 n% }( L% O
" j( I! S% j" e# [. Y SysFreeString(topicStr);. R4 O! D$ f' y; F; w5 v$ P
SysFreeString(itemStr);, W& ]7 s! m, h
SysFreeString(valueStr); 6 R% u# D4 |- v; i$ A: S/ D0 ~( [2 p# d8 h+ {3 E9 J
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???' |- J* P+ _( w1 W/ X
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 U7 \$ N9 x5 T0 {3 t
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2.这是request的程序 6 o3 U {8 P* \9 [// Request a value from Extend1 X. C7 k6 | i$ \
// 5 m5 G& J. h% ?8 e8 ^3 j2 i" f// Initialize the variant that will hold the BSTR. Set the variant's" t+ f6 c8 {: h
// type flag to indicate the fact that this variant holds a BSTR. Place the+ z7 b$ p4 {2 _
// BSTR into the variant structure. , Y: L( f8 w6 ^" Q* y 5 b4 l# ~' o$ v q' O7 \ A9 N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 g3 ]' P' y$ C. Q0 s6 D: m8 t
q: S0 {- ~- l3 q0 R0 k! h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 \! ]& \5 J5 V: ? VariantInit(&requestVariant[0]); * I, a/ ~" e3 j: m. S requestVariant[0].vt = VT_BSTR; 8 _5 ~" R+ O/ ] D8 h7 M7 W requestVariant[0].bstrVal = itemStr;8 e, V' M$ P b! I# l* W3 b
0 m5 l0 A5 n. k/ H- s topicStr = SysAllocString((WCHAR *) L"system");; u! ]. s, R: o" M( O& i
VariantInit(&requestVariant[1]); 5 A! W5 a; I' n7 N
requestVariant[1].vt = VT_BSTR;3 Y% H S6 E; S8 A9 c0 l
requestVariant[1].bstrVal = topicStr;2 p- O u' U4 a d& W
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// Set the DISPPARAMS structure that holds the variant.( h/ ^, h1 {4 e0 n% [$ q' }
/ [ E9 G7 Q8 @+ Q9 ~2 F dp2.rgvarg = requestVariant; / _- ]& q$ T7 h* v6 D' f dp2.cArgs = 2;0 u. o6 V' a* x1 x" J+ Q6 ?0 i
dp2.rgdispidNamedArgs = NULL; ; l8 [" z& U% j; J. R, }' g dp2.cNamedArgs = 0; $ m. X; O" D% R' U& f; I! V- {% c) F) `9 i
var.vt = VT_EMPTY; & A/ K6 R0 H- W" R6 G, j! l" m+ h( \- a; J9 z; ^( s- M
// Call IDispatch::Invoke()# }; x' g" g. z8 y
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hr = m_pDisp->Invoke(8 j+ |! t m2 `6 X3 b
requestID, 9 I- l1 q$ z0 [2 u+ R3 w IID_NULL,' N: Y: F: c3 F, b9 C
LOCALE_SYSTEM_DEFAULT, $ t, }0 {! {+ m' P DISPATCH_METHOD, n2 s5 w8 l5 X7 i3 F( ] &dp2,5 K+ D) T5 t9 @. y# |8 L
&var,( }3 N+ m6 T' u/ K4 r
&ei, J9 g9 H$ O$ I3 \* l$ W& O% a& g
&uiErr); : ]5 @6 I: O" p$ `. \- v z$ H: [0 Z& c5 i: u9 R$ H, V
SysFreeString(topicStr);) o: z$ E% K1 U3 c" S+ O/ @
SysFreeString(itemStr); 7 _% _# n( I6 C, y+ g; N请问该程序是获得extend里面的哪个值? , {9 s6 C! T# v( l. b* w% S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????