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:8 i! s* S/ m! _
Name = (WCHAR *) L"Poke"; 5 h' Q9 M1 X4 Z, y6 a. B ( y/ j/ k1 R' S2 q hr = m_pDisp->GetIDsOfNames (. y. e) a* v1 j& f
IID_NULL, // reserved2 ^/ d0 E7 D. \
&Name, // Array of names to get IDs for & ?" q! S8 s6 G" F P5 n: i, t 1, // # of names in the array+ ?' T D+ j$ A' _+ N( M- N
LOCALE_SYSTEM_DEFAULT, // System locale ; ~3 @0 u& Q; L ` Y4 M &pokeID); // Array of IDs to fill on output , w6 G' v0 O) J& L / H2 Q" f4 @6 j" J
if (hr) & F" Z3 S; G' b3 S( v1 Q2 o. b6 [/ a7 V {5 ^- e' }. d, w2 z% y# P
MessageBox ("Get Poke Unsuccessful"); 3 ^2 P2 u3 E0 C: Q return; ; T/ ?1 D# ?5 w( C& @$ Q } ( A% @$ k9 Q& y B* ^0 R) Z; O ; j% n% e# |# k/ i/**************************传递数据给extend**************************************/+ ^) G. E/ N& {5 ]' L/ G- Z& Q: C' A
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# y5 L, b+ f! |% {) c/ t
# [7 C6 U% D; y! u8 ~4 x) N/ s valueStr = SysAllocString((WCHAR *) L"1232");% o1 C* v7 g$ G8 D2 a+ l
VariantInit(&pokeVariant[0]); 1 H5 H+ G. r9 [% ]% K6 y pokeVariant[0].vt = VT_BSTR;' }9 K* i' T* V X T3 @* l1 \- S
pokeVariant[0].bstrVal = valueStr; " R$ W0 V4 a1 u# o! X# R6 D9 V. y& y" s& w1 L: |% l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ I3 M, |; F7 w3 e! Q, V
VariantInit(&pokeVariant[1]); ! L* z( f+ f4 R0 _* a pokeVariant[1].vt = VT_BSTR; ) @: @# k* g! n) g! x4 L pokeVariant[1].bstrVal = itemStr;. }- k4 {( G/ M+ C S% I
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topicStr = SysAllocString((WCHAR *) L"system");# B8 M) I4 g6 l4 G8 x
VariantInit(&pokeVariant[2]); / e3 _2 U. r0 c5 K- F+ ?" i! x pokeVariant[2].vt = VT_BSTR; ?! n. ?( b9 K
pokeVariant[2].bstrVal = topicStr;/ r) y* a8 B4 X- g& c
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// Set the DISPPARAMS structure that holds the variant.7 |8 L s& O0 z; F( Z( b
) m+ B) T# K/ @# m# R" d dp.rgvarg = pokeVariant; 7 Y1 i @! R y dp.cArgs = 3;: ]% F l+ l' {
dp.rgdispidNamedArgs = NULL; % O9 _9 C: P9 {3 H1 q# ]: t% @ dp.cNamedArgs = 0; $ n, x% I" {+ `- m# U! [3 z8 r" u$ W4 w' t. k+ Q4 x7 d
// Call IDispatch::Invoke()/ ^! [) N2 C) P% w2 @0 P6 M+ S, s
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hr = m_pDisp->Invoke(! O2 |% @; G1 O3 u3 W, u
pokeID,% m- F5 ]5 M# e' W8 c
IID_NULL,: Z: X( H( a s- H/ L
LOCALE_SYSTEM_DEFAULT, ( ~6 |+ l, ?. b! ?# Z DISPATCH_METHOD,2 x. G6 f# T1 K8 S
&dp, 1 y) V* X6 Z; B8 M3 F F$ L NULL,( U+ ]3 D7 W1 Z
&ei,# z/ R! |6 f4 r9 T8 J3 t4 s: L9 b5 W: `
&uiErr); 8 O+ w( u: w% k8 T0 O ) _$ a( C8 e8 y n d: d SysFreeString(topicStr);1 k/ X6 j* P) E# }
SysFreeString(itemStr);0 t+ S$ E. P6 `7 H0 N( c
SysFreeString(valueStr); " z) } S \. f7 _ # t3 U w$ B1 F/ c' F1 k2 n/ a4 }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???; D0 `! l8 l ~. j" R( 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???? 0 L* m# n0 g D% W6 Z3 [. J4 `8 O: x% X; T) j. B; d6 O) o6 i
3 ]9 V: ~" R9 q/ i2.这是request的程序( b6 h, U$ [# ]: W$ ]; j
// Request a value from Extend4 b0 U% Y5 h% Q: t
//7 ~$ @2 N3 P& w, P
// Initialize the variant that will hold the BSTR. Set the variant's6 E* n! ^" `/ ^
// type flag to indicate the fact that this variant holds a BSTR. Place the ; t, |, a: \" q7 ^- T1 j% l// BSTR into the variant structure.: {: T, C+ r) i0 ]/ v" W8 F& c6 ^
) f" G9 L8 U. N requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + B. [3 d6 n) k6 l ! v5 h" \ B7 ?0 K7 {: v, p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& Z0 p2 A! T5 k2 n; d* P
VariantInit(&requestVariant[0]); : q. N* Z' q) ?8 d
requestVariant[0].vt = VT_BSTR; ) B, }7 f- T# k! t1 Y requestVariant[0].bstrVal = itemStr;+ `* K' z, C6 E5 E9 w. e- @3 c1 y
: _1 q2 t1 P; X2 j topicStr = SysAllocString((WCHAR *) L"system"); 8 {5 W R7 L$ e8 _8 V0 f% f VariantInit(&requestVariant[1]); 0 Z1 e: t2 F. J9 b+ |7 V, M5 ` requestVariant[1].vt = VT_BSTR;3 z# A A9 m% p
requestVariant[1].bstrVal = topicStr; $ X# D- {* N8 ~4 i' O- E" g 2 n0 l# G$ ]9 Z3 a: _. ^// Set the DISPPARAMS structure that holds the variant.' t Q& q$ R7 B# {8 t: H! N
# @' {7 C; @2 o3 Z& n dp2.rgvarg = requestVariant; + `7 X/ u7 p1 r% R! Z dp2.cArgs = 2; 4 g S- s+ P' F \: Z/ m8 ~ dp2.rgdispidNamedArgs = NULL;( h/ ^8 _1 p% s% ^1 h
dp2.cNamedArgs = 0; : E) {" w$ }, F9 y: R9 p3 \" `; F. x: o5 [- q9 Y( z8 B
var.vt = VT_EMPTY; # R+ w1 P6 n( J0 m4 f5 I! G% {4 G* O& b: Z) j
// Call IDispatch::Invoke()! Y5 l8 Q1 D4 z. }$ w