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: 1 S# n. k# f: W0 B* yName = (WCHAR *) L"Poke";5 n" ], ~2 M% F% {3 R7 {5 G
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hr = m_pDisp->GetIDsOfNames ( 3 M; V9 z( o2 k3 w. Y8 j$ @ IID_NULL, // reserved# W0 Y# z4 v: F+ f
&Name, // Array of names to get IDs for / B! s7 e- K- M6 h% v! Z, s4 M 1, // # of names in the array1 f7 d6 v" F5 A. ^. L
LOCALE_SYSTEM_DEFAULT, // System locale0 E1 v' d9 t6 w2 j, H5 M
&pokeID); // Array of IDs to fill on output # G4 C. J# u! g% ~& O , V i0 x1 K! }2 q( n" @
if (hr)- H0 \+ N. q+ P( m6 K
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MessageBox ("Get Poke Unsuccessful"); 9 ]/ d5 y7 X( X return; ( O, T. n' _2 T# H. G/ Q }# {1 F2 s M5 F0 o4 I
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/**************************传递数据给extend**************************************/ 1 o7 |# P: T. C6 I. S J" f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( I' a. V- \! x9 E0 [7 L
, g: R) X) p. m5 m. G" O valueStr = SysAllocString((WCHAR *) L"1232"); $ u( G+ {3 W7 Q# s5 ?1 W$ j, n VariantInit(&pokeVariant[0]); ; ], G/ q9 E) d
pokeVariant[0].vt = VT_BSTR;7 J: q9 _3 I& l& L% B
pokeVariant[0].bstrVal = valueStr; / G! c5 t% w) e$ Q1 ~+ e8 {3 a$ k' ]( B; L; l$ r5 {8 u$ K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! H' o1 _; s6 `8 [* z9 B! X VariantInit(&pokeVariant[1]); , k5 ]5 {2 X5 M* L* Y
pokeVariant[1].vt = VT_BSTR;5 m9 O% T# a l1 \/ U' J
pokeVariant[1].bstrVal = itemStr; T8 ~1 P8 a( N* V$ [. b4 ]
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topicStr = SysAllocString((WCHAR *) L"system"); 4 R1 Z$ r ^% {2 n/ t VariantInit(&pokeVariant[2]); ( U/ [. e4 ~% L1 _ pokeVariant[2].vt = VT_BSTR; - m" \# U0 l7 N! P/ ^ pokeVariant[2].bstrVal = topicStr; ; _7 d4 [8 ]3 {9 X, l : |( d( N4 |; E. d0 T// Set the DISPPARAMS structure that holds the variant. " C+ i7 i [3 ]- u( t, D# @5 ^ # u; h9 |8 _5 g9 V2 G dp.rgvarg = pokeVariant;3 Y9 _1 R$ Q9 u _6 f0 ^$ M
dp.cArgs = 3; 6 G" X) M! ~+ H* L dp.rgdispidNamedArgs = NULL;+ ?" y% @ H) K; `! K
dp.cNamedArgs = 0;8 _) p, ~# K; [6 [1 T( C. ~
& c X6 x- I6 x1 O// Call IDispatch::Invoke() ) l! }4 C! D: S/ O$ [0 ]( @ ]4 X& g4 o' m* l9 d1 Z, O3 O
hr = m_pDisp->Invoke(9 \) A" k: B5 @. ^. y8 y
pokeID, # F( `3 C; w# O' C, x3 | IID_NULL,7 i+ Q7 x/ [/ T
LOCALE_SYSTEM_DEFAULT, 6 T: M: |; l+ t: G- J3 U, l DISPATCH_METHOD,3 ^; v! @0 a- d7 K) Y& Z
&dp, ) B$ w/ w; E0 q4 M p NULL, " v$ U7 Q9 H/ Q/ X! {6 k3 \ &ei,& z8 a) R; c c2 E' s- C: i5 \$ }
&uiErr); ; e& K6 F, s2 S' A) R1 k0 u * r* i+ ]- V9 v9 H& \ SysFreeString(topicStr);0 Q9 o; ~/ t8 E
SysFreeString(itemStr);' K8 z' B, }% Q1 ^$ R, s
SysFreeString(valueStr); , M) n3 f' K" M; i2 i. E) t+ V+ u( T 6 K4 _% N# K m. F2 l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 [. H7 m w6 r2 ?1 m0 J
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????, F/ G/ n4 t2 u3 O% b; A( W& K3 v& b
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% Y4 m: S8 ?, U2.这是request的程序 i O6 v% v, ~+ @' u7 s* ]// Request a value from Extend E3 B, x( Y, o$ c% z
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// Initialize the variant that will hold the BSTR. Set the variant's 2 w2 v0 O/ C2 o! z4 Y& j+ J/ E// type flag to indicate the fact that this variant holds a BSTR. Place the ) f% V4 ^0 }8 W3 \// BSTR into the variant structure.' u4 K) u0 r" @# ^3 {" K. e2 p2 L: e E" [
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ V/ Z( A# I) C, ~! B K$ W: T/ Y
) T F" e. A) A8 E' x1 _, o7 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; ~! A6 X, X: c* n/ p+ O9 w9 s VariantInit(&requestVariant[0]); $ f. {$ X; o2 \8 ] requestVariant[0].vt = VT_BSTR;: O5 j' G& V' r2 }
requestVariant[0].bstrVal = itemStr;% J1 m3 N3 u: n) f0 E! H
. \' I$ d! g- H E) ?9 w$ [ topicStr = SysAllocString((WCHAR *) L"system");: t4 d x! Q ~) y
VariantInit(&requestVariant[1]); . F0 m9 e# U6 n/ t
requestVariant[1].vt = VT_BSTR;2 K, v! n) t7 f
requestVariant[1].bstrVal = topicStr; * l5 c6 R9 q; h2 z5 }: f. p( G& K" k 5 a0 f0 o' c4 {( i2 s& M/ p// Set the DISPPARAMS structure that holds the variant. 5 w$ H a: D5 ]# c# s, @( X7 T7 D4 c% g
dp2.rgvarg = requestVariant; 5 |4 H3 c! o% I+ d+ [! A7 p' o dp2.cArgs = 2; - {! ~$ f5 _1 Z dp2.rgdispidNamedArgs = NULL; $ [3 O0 G% K: l% T( I0 q4 F0 g4 F- L dp2.cNamedArgs = 0;" ^) H" B! x5 A4 ~, q& `+ H% s9 p
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var.vt = VT_EMPTY; & I4 F% o& l7 ~1 S3 }( c' f 6 _. D% N$ C6 \9 {// Call IDispatch::Invoke() 2 Z( A6 W1 G/ K' H# Q+ C% e6 z1 t- d3 X/ ?& A
hr = m_pDisp->Invoke(7 E& C; l* z h! S
requestID, $ E& L& k6 v2 g+ ?8 A- G IID_NULL,1 G# R: ]$ \ p' o" R
LOCALE_SYSTEM_DEFAULT,+ v+ B- Q. C1 X& j, s
DISPATCH_METHOD,0 @+ N! Y) R- }& t7 Y: O6 s
&dp2,7 o( T3 K2 l4 v$ \; N8 Y | B" n! }
&var,2 u& O& q9 S! M S0 g1 G' q
&ei, - q5 A- r/ |6 k; s+ e3 ? &uiErr);! E9 D2 y8 c# T, B6 o: N$ {
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SysFreeString(topicStr); 0 r& T+ X9 |" H2 d; k; F/ z SysFreeString(itemStr);1 {' g, z+ N, Y7 K* q" Z
请问该程序是获得extend里面的哪个值? 6 [/ a) q5 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????