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: 9 E W: v6 n @' ?: O* o2 c( x! G3 hName = (WCHAR *) L"Poke"; B; B( W" x/ s9 e# w8 E& K$ O; B 4 Y9 l' [# G/ ?+ ]4 _, V
hr = m_pDisp->GetIDsOfNames (1 c9 ~! `) F0 H3 r/ h9 Y
IID_NULL, // reserved 2 V& I/ c3 D0 }, O4 O# m &Name, // Array of names to get IDs for 5 a! w4 }' Y, L. Y8 u" Z; O+ i4 K 1, // # of names in the array 5 \! y1 t5 l% T% j0 }: E LOCALE_SYSTEM_DEFAULT, // System locale 2 R0 U; m& G; e. i9 Y D &pokeID); // Array of IDs to fill on output6 }. ~9 l9 u7 O+ C0 _
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if (hr)+ S3 f$ h% Y$ E3 m+ Z
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MessageBox ("Get Poke Unsuccessful"); , u: X9 |. p; g# q return; . I& b7 ]! n: E9 y: T% i4 l$ G. M }7 g- l0 D4 g# E" ?: C
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/**************************传递数据给extend**************************************/3 X' ~$ R3 C, b# D7 o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# j* P+ T1 a8 N6 n# ~% ]
0 p: u& [6 ~# ~% _5 M valueStr = SysAllocString((WCHAR *) L"1232"); 3 k# S( k! y2 N VariantInit(&pokeVariant[0]); 9 u6 p' B9 F4 j" W( { pokeVariant[0].vt = VT_BSTR; " a. \- W% ]2 j" {0 |+ B' {% N% b pokeVariant[0].bstrVal = valueStr; * M! F! D7 S1 Z' m# n1 ] $ d0 j4 ~5 s4 J& b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , r& X/ J N. I! X VariantInit(&pokeVariant[1]); ; T! X% R: d) @, ^0 P+ N X+ Q; G
pokeVariant[1].vt = VT_BSTR; & |. ^7 ` U: x+ o. w) V1 p pokeVariant[1].bstrVal = itemStr;/ ~2 V/ I9 W2 K9 u" F* S: l& e
& k [7 W& V) [4 q. ] topicStr = SysAllocString((WCHAR *) L"system"); / l) k5 f8 w, h2 y VariantInit(&pokeVariant[2]); 5 L" W' | A3 ~) f* l* o% g5 U pokeVariant[2].vt = VT_BSTR; 5 x' I4 w* u3 g% }# R: H3 r+ V, ~ pokeVariant[2].bstrVal = topicStr; 5 G1 o/ T$ `" }" Z1 y/ G. ]) Z" N4 A8 s' ?% f+ ^5 v; l
// Set the DISPPARAMS structure that holds the variant. 0 Z) p) N- g. u; z7 i+ T. \1 B ) B; x7 i# P0 L( ^* o) \" j+ m# M dp.rgvarg = pokeVariant;# X9 _ E4 y; K. p
dp.cArgs = 3;' t% j( O# {+ U# C$ ?/ S
dp.rgdispidNamedArgs = NULL;! G' o/ M. W. K2 ?" O6 m
dp.cNamedArgs = 0;8 q7 Y: {$ \; |* N. o8 E
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// Call IDispatch::Invoke()! |) a1 ^8 |: v
! U2 Z+ Z# _. d2 L hr = m_pDisp->Invoke( 5 C/ Z! \' k" Y pokeID, 7 Q* {; @ Z& `9 _1 D IID_NULL,8 Q' ?3 b6 e( H/ Z
LOCALE_SYSTEM_DEFAULT,1 A1 E7 d! ?/ S$ ^4 e- |" Q2 z
DISPATCH_METHOD,7 S/ K6 K' B S; w* Y- x& w
&dp,9 m& i4 Q1 }' x0 j% n" }- j
NULL, + N; P" {2 Y9 M% y9 q5 t+ Y* G" C &ei, ) E3 Q# ~* |# n3 } y- u &uiErr);" V; z( \" f+ ~7 C( I3 J
: k# `' q1 f2 O% ?+ Q! N5 O SysFreeString(topicStr); * |' u6 L" d5 c* k# h- [ SysFreeString(itemStr); / D( S s2 Y0 o% T' a' q% D: {; v SysFreeString(valueStr); " ~' S4 F+ y4 m- p' f5 W, e % U' n2 [9 D" @% l. c: I* R; `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??? ) W- ^2 A. 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????2 u9 V R$ D _
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2.这是request的程序 . V2 t7 r3 N+ W, p! i// Request a value from Extend7 r& ^# v* N9 R
//. ]$ O5 O* c. X: {" Q+ ~
// Initialize the variant that will hold the BSTR. Set the variant's3 J, B4 p2 U6 Z/ w( W3 Z
// type flag to indicate the fact that this variant holds a BSTR. Place the . ?, c) G. D: f2 ~) J4 |// BSTR into the variant structure. ) G& C8 ^: b$ [6 w6 ^! z8 S8 ]# _, w5 d+ l4 B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: i3 l" a& x/ y9 @0 i