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: . ^, L8 D8 }; C. zName = (WCHAR *) L"Poke";9 s7 S! ^: }9 m8 W5 o' B
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hr = m_pDisp->GetIDsOfNames (* z" a A, ]# ^/ i9 m
IID_NULL, // reserved% `$ M9 ?, {7 _
&Name, // Array of names to get IDs for 4 l$ _: p0 i- D8 Z7 i& J, O 1, // # of names in the array T- c- J; |9 i& O LOCALE_SYSTEM_DEFAULT, // System locale5 R4 V- x$ r7 f* H
&pokeID); // Array of IDs to fill on output+ l) n8 [7 m4 l' p ] U% H
! N; e; C- K. o+ k if (hr)$ j9 U% ~+ _$ H6 R" {
{ 9 |) J( K$ H; q1 f4 }* J MessageBox ("Get Poke Unsuccessful"); 2 `$ F8 S! J( r return;! _7 B0 l9 g/ D. V
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* a! u1 U4 N5 }/**************************传递数据给extend**************************************/, H+ d- t! o' _5 J# U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' |) U( b/ v) |+ p5 s 4 y0 S# g3 T7 U valueStr = SysAllocString((WCHAR *) L"1232");7 l8 }: y1 z0 e5 K% f
VariantInit(&pokeVariant[0]); " ]0 s4 r2 A1 k pokeVariant[0].vt = VT_BSTR; ; {) {! ]# ?+ U0 X8 ~" d4 g pokeVariant[0].bstrVal = valueStr; 5 {, f+ s4 ]6 z. n, O& g% ~; `4 |0 F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' H- _7 n, {; F* X, Y VariantInit(&pokeVariant[1]); + F) H4 c2 A- Q8 P& W4 Q& s pokeVariant[1].vt = VT_BSTR;4 ?* o: Z: j2 U6 q6 p6 ~
pokeVariant[1].bstrVal = itemStr; + X, a: B' d! ^3 b, } , r+ {6 D( F5 U4 j! J topicStr = SysAllocString((WCHAR *) L"system");+ w( i4 g- I8 k; t8 K# Q
VariantInit(&pokeVariant[2]); 1 E, Z: L$ N1 z pokeVariant[2].vt = VT_BSTR; 5 e5 l# K, ^4 _2 G- h4 ?: v, J# V6 p pokeVariant[2].bstrVal = topicStr; # [: g0 J$ u, Z2 }3 M8 h2 T2 k4 O+ X b
// Set the DISPPARAMS structure that holds the variant.+ }2 i B: w) n# ?) Y2 z
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dp.rgvarg = pokeVariant;( R5 o8 u$ q3 y
dp.cArgs = 3; / R8 D8 M9 L# M2 ~ dp.rgdispidNamedArgs = NULL;/ K* B9 \5 e2 u, H" G
dp.cNamedArgs = 0; * R' [6 n6 f# _. R5 W 4 x2 ~+ h$ _% T; r' v// Call IDispatch::Invoke()1 p# `% \' G# @+ K7 E0 `# e! B2 T
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hr = m_pDisp->Invoke( 2 e* u9 s' m; p pokeID, 6 T" A/ ~4 c D1 }3 M IID_NULL,+ P4 Z& B/ B" a
LOCALE_SYSTEM_DEFAULT,! c% M" X$ H/ m- U! i4 I# t! d
DISPATCH_METHOD, 0 {" d+ V6 ?1 k4 V8 h$ `( q; T2 _ &dp,& W' F; a: F8 O5 M8 Z1 x
NULL,1 u. }4 u5 D& D3 K1 F& @& s
&ei,; m) K) a- ` ^$ d: ]
&uiErr); $ g$ }8 I2 R% C+ g & h2 p; d; A7 H$ Y3 ? SysFreeString(topicStr); / q5 t( b4 B. _# C! C1 H SysFreeString(itemStr);4 T$ C1 O! D7 Z
SysFreeString(valueStr); ; O! q k3 C$ ^1 J8 l1 O' M $ M/ h5 {+ s" J" q& G" q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??? ) `" U" I/ K0 f6 X2 n8 K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???? : U: ?& Z O3 h) L 7 [- C& M. h9 Q& V% T 1 A- b' i/ d- t$ ~2.这是request的程序 ! L7 J& N2 g1 @, {, E4 N: u/ [6 y// Request a value from Extend 8 F8 U2 N' v8 Z- f//: R- w% A, S9 ^8 _5 r8 B
// Initialize the variant that will hold the BSTR. Set the variant's. N, X- D) V" j4 G
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 D/ v5 I y' z8 M# z// BSTR into the variant structure. ; A( S4 G6 r4 U$ u3 n$ L& O& @& s5 g2 b/ E" ~; f g$ i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 |3 r4 ^0 O* `3 k
. p: T- Q1 b, C- X$ \! E E! m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 ~0 x* l1 ]2 [& e, h9 L* s8 t
VariantInit(&requestVariant[0]); 1 i2 W) ^$ r+ ^; f" u0 q1 g
requestVariant[0].vt = VT_BSTR;; D, e( `) ]( w
requestVariant[0].bstrVal = itemStr;5 b, w$ L# c+ F* `2 | k
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topicStr = SysAllocString((WCHAR *) L"system");3 I$ S2 T9 V( C2 J
VariantInit(&requestVariant[1]); 0 K2 V% ?5 i; {# ?; o, q, _3 J- a8 s
requestVariant[1].vt = VT_BSTR;! F" v8 G: {- I/ A) ^8 k
requestVariant[1].bstrVal = topicStr; ! |6 Q+ {. N) i4 Q+ m & O; f& `7 r' f/ @" {// Set the DISPPARAMS structure that holds the variant.9 k" n8 v: a+ Z& ?* C) r
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dp2.rgvarg = requestVariant; ^' R0 N9 [9 J+ N z0 @
dp2.cArgs = 2;. P% e$ H' _2 n9 H5 q
dp2.rgdispidNamedArgs = NULL;! ~* q, S6 d' G
dp2.cNamedArgs = 0;4 V1 n; _# O7 f* O6 @/ ^$ V+ o
3 W/ D) m$ D7 }4 G& J3 g! v var.vt = VT_EMPTY; + r7 r) |6 U# ]! _5 O& p: j2 M' F. d: U3 o) s2 X
// Call IDispatch::Invoke() 8 _4 ^$ ^0 b5 \3 z% ^ $ y, o) Y5 c5 s" S hr = m_pDisp->Invoke( 2 o4 L8 E$ J: Y0 H requestID,! S; j: u6 ?$ B B# f, ?5 Z
IID_NULL, 2 H1 A! q: f7 Z' v" K4 | LOCALE_SYSTEM_DEFAULT, ! j* c7 b5 r1 Y DISPATCH_METHOD,, ~, o, _& L% N% ]7 n. g- K
&dp2, - m0 Z4 T Z B6 T &var,! V: d' A7 a M/ d" Z$ T. {1 A
&ei, : j5 K5 N* e) x: m1 X# Z' @ &uiErr); . {0 f7 c' F; G, I* m4 ^. v6 |: J" m) k" D N8 f2 h
SysFreeString(topicStr); . ?' c- A$ U# w+ C2 X SysFreeString(itemStr); 2 A# g$ N: u4 Y& r2 ]) D1 n2 {请问该程序是获得extend里面的哪个值? + `4 }: ~/ {* ?0 Q7 r3 C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????