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:+ Q+ a$ R* J+ ~/ C& [8 D% l
Name = (WCHAR *) L"Poke";( z8 j+ T0 n$ @* O0 Z3 k
8 [, L7 @7 S6 F6 D hr = m_pDisp->GetIDsOfNames (/ n# Y6 W$ I" v, x/ }9 J& s) Q
IID_NULL, // reserved/ R! n2 T. M: d% Q2 d0 i
&Name, // Array of names to get IDs for1 g2 v2 T% d. B) [8 E
1, // # of names in the array 4 G' Q6 I% P( r9 Q- u5 u LOCALE_SYSTEM_DEFAULT, // System locale ; o, P8 a% C' K, A# ~ u &pokeID); // Array of IDs to fill on output9 ?. x% Z$ o! z8 O$ R
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if (hr)9 j9 m. c+ q. b2 _3 {1 W
{ 8 \% A8 _4 `) \/ z( i h- A MessageBox ("Get Poke Unsuccessful");- u- \" V* z+ ~" i( }" w
return; 4 N- @1 r0 A# r5 W) v6 E }- F$ ?6 f9 j# V: W& q
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/**************************传递数据给extend**************************************/ 3 Z* @2 L5 {( q* Q8 b, n! F \5 A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - I' {6 v! U# C$ e) | % g( m3 B2 q: A3 y% D: J. k7 { valueStr = SysAllocString((WCHAR *) L"1232"); ! s( e+ Z1 j) q% [6 V VariantInit(&pokeVariant[0]); & P# @* e, p& o* M
pokeVariant[0].vt = VT_BSTR;2 X9 I+ q( O9 }/ M% `3 |
pokeVariant[0].bstrVal = valueStr;+ T3 k H, s2 U$ k1 Z& c4 E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 ~' C: F/ t& f2 }4 ]0 p' P VariantInit(&pokeVariant[1]); & {, G+ j) M* @ pokeVariant[1].vt = VT_BSTR; 3 n4 t' ~% m% @1 b6 N5 \9 Z4 | pokeVariant[1].bstrVal = itemStr;+ p: ^% T7 A0 n1 d* F C) i
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topicStr = SysAllocString((WCHAR *) L"system"); n2 |& ?. b& ~/ s8 _7 v. w! z
VariantInit(&pokeVariant[2]); 8 \: d. E* c" f5 t
pokeVariant[2].vt = VT_BSTR; $ V: R$ H7 b) y `1 k- |9 Q pokeVariant[2].bstrVal = topicStr;2 A1 O. p" ~, j7 N
& B3 ]# [" `0 z8 v( `& f// Set the DISPPARAMS structure that holds the variant.8 _! x; O& K# o' i' ?
. J' T* N( w! y4 M dp.rgvarg = pokeVariant;: K9 M8 j* r: L. p/ |/ @: v
dp.cArgs = 3;) @0 Z0 B; T5 ^0 w! u2 K6 U
dp.rgdispidNamedArgs = NULL;7 P9 F5 w0 J; L {1 p
dp.cNamedArgs = 0; * V6 u1 I2 O, \$ K 9 t( x h$ u. w) C; y' K// Call IDispatch::Invoke()) g- c- E, ?. _4 \* T
! W6 ^1 Y, K Y7 y hr = m_pDisp->Invoke( ) r' c" a/ s$ j! G! S% R* r pokeID, 0 f, {# |% J: r8 { b) y! ` IID_NULL,. ~8 G/ u% e' d* t5 U$ g) t3 O
LOCALE_SYSTEM_DEFAULT, ! d0 \* w- Y+ F DISPATCH_METHOD, 0 Q8 D5 Y) _* I5 g &dp,9 B8 i3 n( p b4 Y* A" Y
NULL, 3 B; o F8 ]. H) C' H2 a$ h &ei, ! a# ]2 P2 ~7 {. {9 c/ r &uiErr); & }; U D0 ^, r+ }. P7 y0 Q+ H( a! q3 r3 l3 r' k2 a, d" O. k, W# j
SysFreeString(topicStr);+ [( U6 o7 n2 ]1 j
SysFreeString(itemStr);$ n5 C4 \$ y5 \3 ]
SysFreeString(valueStr);5 l1 F6 F1 G# J. T Y+ o
: F" u7 f* U. h5 C8 V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??? 0 L- E' ^5 g7 C6 s+ G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????0 J+ g- @3 o. j
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3 b+ V% k E" G& x& m! `' M: Q2.这是request的程序+ E. g4 [4 J V! r8 J
// Request a value from Extend 8 r$ |4 c# C* U0 |5 o+ ^//# p4 L# R0 p5 L# \+ E1 A
// Initialize the variant that will hold the BSTR. Set the variant's ! p* O( g- c4 T* m// type flag to indicate the fact that this variant holds a BSTR. Place the* i! K# y3 m S
// BSTR into the variant structure.6 R# N7 Q3 E5 W, R0 E& n" i
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. w( Z+ t8 I8 n' G
2 o, l" J5 e% i1 y9 G6 e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 T- ^7 }$ x# o7 m
VariantInit(&requestVariant[0]); . X3 F7 P* f. f! M" e# Q6 i/ i* b
requestVariant[0].vt = VT_BSTR;6 K1 X# }- l+ u% l( N5 o
requestVariant[0].bstrVal = itemStr;- B8 t4 e# t/ j- {7 a+ ^
( V. h* q6 W* H topicStr = SysAllocString((WCHAR *) L"system");) }* c1 l$ h! }' d6 r
VariantInit(&requestVariant[1]); 0 A: W: j3 w* i/ }! V' q requestVariant[1].vt = VT_BSTR;1 }* B5 Y8 Y# p1 m. _
requestVariant[1].bstrVal = topicStr;: _2 i# s, q# ~. s ]. ^
: D8 S3 _% c; [/ N A |// Set the DISPPARAMS structure that holds the variant. - y" Z/ P9 @6 k# ]) n% G6 d. A W% {- `' {0 [$ [
dp2.rgvarg = requestVariant; 4 T: d; i: f$ j9 v! d dp2.cArgs = 2;' T. j/ \# W/ t& _0 V
dp2.rgdispidNamedArgs = NULL;9 K9 z+ P7 n9 m; ~+ o* B
dp2.cNamedArgs = 0;: n% h; c$ S# }& b
0 F. R. n8 A- x; g. h var.vt = VT_EMPTY; 7 h: O% C! Q% {- h. K# @! G : g3 C& a/ z9 N// Call IDispatch::Invoke()% ~9 c# t3 z. z2 u! i' p
, o/ \1 m3 _3 a2 y" x/ E hr = m_pDisp->Invoke( , c; q3 b i- n: J3 j! T0 l requestID,4 U$ G j' O' a# m
IID_NULL,0 K" H& M+ L) c* _8 ^ e! W3 Q
LOCALE_SYSTEM_DEFAULT,- y( K$ T6 t- t7 {
DISPATCH_METHOD, 3 G& K H2 e3 C4 r4 u- \, P &dp2, - m- y" M9 F$ C &var,! N m" ^. k1 {; D8 M w8 A
&ei, 6 r) D) L$ P, g& I; z" P+ o &uiErr);7 b+ n# {! e: x- Y5 D
# r8 L! N# I+ Z! ? SysFreeString(topicStr); ( o0 M1 a& [* Y SysFreeString(itemStr);. X! u. _+ N5 Q# f
请问该程序是获得extend里面的哪个值?" U: _% m4 K$ I. [3 W8 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????