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:$ V1 r G( [" M# Y1 z, n4 V" A
Name = (WCHAR *) L"Poke";* }0 T; D& V6 ^; U/ U
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hr = m_pDisp->GetIDsOfNames (3 ]6 b0 }' h. V
IID_NULL, // reserved; E% \$ G/ C, ^$ E
&Name, // Array of names to get IDs for* q3 P* {; d' o2 U' s8 @( B; G" ?
1, // # of names in the array + i! U( B5 Y3 l" v ] LOCALE_SYSTEM_DEFAULT, // System locale 4 g2 x. k% \/ ^3 `. F$ L &pokeID); // Array of IDs to fill on output+ y H" U; {0 F+ c$ t: Y# \* S
4 i. [$ e/ p+ J S/ ^( E6 T if (hr) % Z9 D- E; N0 R+ n {3 A: l8 q1 r1 Y- S7 ?5 r6 O
MessageBox ("Get Poke Unsuccessful");8 y7 o7 B( ~- y/ h3 S
return;: Y1 Q( Z* n& G8 ]
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/**************************传递数据给extend**************************************/ 0 z- a! K( I+ ^) r) P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 Q `0 }: J8 b) f7 @" K& r9 q! Q
) u1 l# Q* ]8 |$ v valueStr = SysAllocString((WCHAR *) L"1232");$ g# Y! J& p8 B5 {
VariantInit(&pokeVariant[0]); " w* `0 ]7 q3 Q3 g7 Z; o* E+ q
pokeVariant[0].vt = VT_BSTR;9 |( S# X4 c+ G2 I* O6 I g, s
pokeVariant[0].bstrVal = valueStr;3 e. A# e, s2 D0 t
; ^6 f) N. f, ]- L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 K5 D: {9 r& F% w0 \9 Y" ]
VariantInit(&pokeVariant[1]); 0 ^8 h+ x' E2 L# a8 X: s
pokeVariant[1].vt = VT_BSTR;5 }' L; B1 Q E2 p
pokeVariant[1].bstrVal = itemStr; s+ A7 J5 }- h% \
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topicStr = SysAllocString((WCHAR *) L"system");6 G7 C/ h. @. Z: {
VariantInit(&pokeVariant[2]); 7 x! @5 g" o4 J/ W9 j6 z pokeVariant[2].vt = VT_BSTR; 2 L+ Z9 q/ W( V; x! D' _0 m pokeVariant[2].bstrVal = topicStr;: n8 a6 F8 K" {6 U0 h
; r0 `1 R" q7 o' c5 B& i3 M// Set the DISPPARAMS structure that holds the variant.# [; p" {) u7 j7 z2 }2 E
- ^7 @, y8 }% ^: R dp.rgvarg = pokeVariant;( m- L- x3 Y6 X$ w) T
dp.cArgs = 3; $ U# B$ V3 x* H1 \' o ]# l dp.rgdispidNamedArgs = NULL;3 k( p) K) W7 M( h7 F6 Y. v/ i
dp.cNamedArgs = 0;* [2 n+ x) y. Q7 }$ D7 @2 x' p
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// Call IDispatch::Invoke()) Y/ s! R3 L6 F8 t" r* ?
* K6 Y! O$ i' l- \$ B9 U& \4 N hr = m_pDisp->Invoke(5 T$ x# _" m# c% l- o r
pokeID,) d# K7 N# `7 u8 p6 b
IID_NULL, 0 a4 n. n( x: ~6 H, x6 G5 v+ b LOCALE_SYSTEM_DEFAULT, ! q' k5 I1 M; X8 o/ S( _ DISPATCH_METHOD,' G9 @$ i Z+ _8 V% E a/ Z; r% c
&dp, ' E K' e4 Q# @ NULL, 2 _: E4 I& D G &ei,: t e# R6 i+ d/ e6 m; L
&uiErr); . c9 h% x4 ]) r0 \6 {( `4 s$ U/ H
SysFreeString(topicStr); 5 ~8 Q9 P' H* B4 _ SysFreeString(itemStr); " \2 K6 p3 z K7 H; ?: q# u0 Z SysFreeString(valueStr); ' ]2 u& }8 t8 c+ z- ^$ p2 r9 Y6 W l0 K& j. [, ~3 H4 U" |
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???- W7 G% K0 f, J0 o: \% U
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 }2 i' w% G* g: c3 [- b* _: Q1 Q
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' j/ O; F, P3 `& b2.这是request的程序 , Q5 k0 q4 }4 B6 r; f// Request a value from Extend + c4 Y9 d/ D( p1 F7 K' E6 y, O//- u4 p- r- a0 s: v. \ O7 u" E
// Initialize the variant that will hold the BSTR. Set the variant's: I6 k' b' \+ ?4 E( u* g1 j7 b
// type flag to indicate the fact that this variant holds a BSTR. Place the# Q6 q+ G1 i: T% }( n) I
// BSTR into the variant structure. # |7 ^. d- B3 n$ r. q% A4 I( m* { Z; w' A$ ?9 S
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 g" W7 C- e. p ; Y9 r) P0 ?/ g9 o, A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , Z0 a2 \& Y, A& X- D% z# \) O VariantInit(&requestVariant[0]); ; P( d% R, t! u( W
requestVariant[0].vt = VT_BSTR; 6 Y# X! u' f9 x( [' G5 _ requestVariant[0].bstrVal = itemStr; 0 I$ A2 c9 h! m( Y& r* X3 T+ S+ k( |9 h" _( ]6 |* ~; l
topicStr = SysAllocString((WCHAR *) L"system"); ; N1 a# z$ }" z% K: f$ r VariantInit(&requestVariant[1]); ) t. `1 R t0 x3 Z7 B requestVariant[1].vt = VT_BSTR;: S! s# D$ R$ t. P' u3 V
requestVariant[1].bstrVal = topicStr; 1 B" g& n) u" J$ h; x- r # C, [/ q4 c! m& z; n* x// Set the DISPPARAMS structure that holds the variant.3 i' h; c: P, ^7 G, T, d% {
5 Z. \8 U" F& o+ s% h dp2.rgvarg = requestVariant; - |& |) G. s% V! Q" n dp2.cArgs = 2; 9 r% |( I# z( q5 s' x3 G8 q" B dp2.rgdispidNamedArgs = NULL;6 t s+ ~! T7 G- Y, N2 D
dp2.cNamedArgs = 0;+ T3 F. @' [' E( J5 c
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var.vt = VT_EMPTY; % S9 I. G1 s! N1 X l6 k ~# e4 H+ @; i) v8 s
// Call IDispatch::Invoke(); k" t6 Q6 L) m, g2 D1 o6 t