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:0 C6 T' U7 }3 p$ E2 C
Name = (WCHAR *) L"Poke";$ u8 q& h+ I; F" y
/ {4 a: ^7 t$ r% N hr = m_pDisp->GetIDsOfNames ( 6 m6 p/ ], q/ [6 Q q. W i' p IID_NULL, // reserved ' Z3 G. D7 i9 Z6 d T &Name, // Array of names to get IDs for # R2 f; B( \" B0 N- l5 ~5 F1 A4 Y: T 1, // # of names in the array & p7 ~1 v) i: t5 W) L' l LOCALE_SYSTEM_DEFAULT, // System locale 6 [1 O. Y) I" d z' b! D1 [ &pokeID); // Array of IDs to fill on output # q! ]% V, O4 s' w/ r $ J0 _/ b& }: o! L& z if (hr)* f$ w5 G- m* c. P- Z5 N# N
{ 2 ~7 M% X+ j4 y7 {! ~1 c MessageBox ("Get Poke Unsuccessful"); 2 T+ d- P3 r- H% A& \! X$ j+ ? f return; - M+ B/ c2 O! m5 |. ]* S } 8 V. D; V. m, x$ {( d% I0 H6 Y' Q2 `: }3 X! H. i" g
/**************************传递数据给extend**************************************/ $ ]& _/ x1 {, t# M8 E& Z) U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; g. e) w8 F+ @* l# C) T; m+ P& k
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valueStr = SysAllocString((WCHAR *) L"1232"); ) G& L! ]- n+ N, L1 M4 r VariantInit(&pokeVariant[0]); ; C* `; M- [4 M) g( n9 _6 _# X7 G7 K2 L pokeVariant[0].vt = VT_BSTR; 0 r, k" [; O K6 _- Y pokeVariant[0].bstrVal = valueStr;% M$ z( @9 x# q" d# i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . m% E. h9 z+ r( A$ b VariantInit(&pokeVariant[1]); 0 c1 y. V/ G" { pokeVariant[1].vt = VT_BSTR;6 s" u a( g2 {# |
pokeVariant[1].bstrVal = itemStr;# @% c: |0 O9 N- y- r9 `# N9 }6 C3 }! ^
0 g. B- Q6 i% J3 b& n$ H5 I' r topicStr = SysAllocString((WCHAR *) L"system");4 G: C% r, b7 A: M- G
VariantInit(&pokeVariant[2]); 9 I3 X6 B& M9 l1 k6 f4 D pokeVariant[2].vt = VT_BSTR;2 n, n/ w. J2 m" j5 E" h
pokeVariant[2].bstrVal = topicStr; E. L N* H* [9 c! s
1 B n2 J4 W0 ~+ k. H3 T6 N// Set the DISPPARAMS structure that holds the variant. H: q+ B. L$ ]8 a5 K . N8 r5 `3 u0 U9 E6 y; `+ v dp.rgvarg = pokeVariant; : X G' q% J [. z/ F5 M; N dp.cArgs = 3; $ T6 | m" H" ?; V dp.rgdispidNamedArgs = NULL; - e5 L" F2 [4 o, b8 r dp.cNamedArgs = 0;# [( m$ o; B* S6 e. `# J
0 X* V5 u) {$ Z% K// Call IDispatch::Invoke()/ S7 s7 S% n, [3 v! D- N; ~0 k
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hr = m_pDisp->Invoke( 0 P2 Z1 B* q5 S2 D g# X pokeID, . M; z4 t1 `1 d [9 t8 t6 c IID_NULL,9 p# J. b! P" ~: C7 u- Q
LOCALE_SYSTEM_DEFAULT,: T/ [! c8 G* [2 I1 I
DISPATCH_METHOD,$ z3 C# ]+ j( d0 G' _$ {1 G% M' f
&dp,) s1 i* Q0 R- G
NULL,6 i9 w4 ?( R- P- T
&ei,* P# L% @5 ~ S5 l9 q. _( A r
&uiErr);" K5 q6 J2 O, u
g8 ]0 p- `9 ^ SysFreeString(topicStr);" Q- o( [+ S' v: G* t
SysFreeString(itemStr); 0 `* X( ?. [/ q# v9 D- G SysFreeString(valueStr);7 D3 Y% G# p0 x( `* ^# d0 G
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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* J' d! C) g% X) 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????7 {/ b7 ^5 p6 p
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; T# G9 ^( U. i3 w7 b2.这是request的程序 0 U9 b% `$ z; Z4 z! _# W( Q// Request a value from Extend * t+ E) F/ R& j, m' ]6 D4 ^8 ^' y//7 L* c6 @; ~. A0 i* {( p
// Initialize the variant that will hold the BSTR. Set the variant's4 ~1 y) p( I+ t: s( W% q
// type flag to indicate the fact that this variant holds a BSTR. Place the / ?5 b) Z1 r. H# ]: R2 D5 ?6 P& [// BSTR into the variant structure.! C1 _& g# G: W
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, ?% _) J* G6 x7 n4 E3 D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: g5 z5 ^; [7 B0 `1 R& G N
VariantInit(&requestVariant[0]); , y6 Y+ x# d0 a7 F+ t6 t requestVariant[0].vt = VT_BSTR; , @, y- [, ]8 C2 } requestVariant[0].bstrVal = itemStr; ! t9 [0 [, j1 L+ l: |* r+ \$ l: J
topicStr = SysAllocString((WCHAR *) L"system");, |& b. s( P" W- F5 R3 H
VariantInit(&requestVariant[1]); % d$ @ v' {* a' f* L4 I requestVariant[1].vt = VT_BSTR; & P; `2 d; G; b' r$ {9 _( U8 g requestVariant[1].bstrVal = topicStr;% q) \" p% T6 ~' i" y
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// Set the DISPPARAMS structure that holds the variant.0 {( h/ F% A2 g; L. ]- }
! e* Q4 a& v; k" a! O* h4 p dp2.rgvarg = requestVariant;# f; C! u* M7 Q& r
dp2.cArgs = 2;* U% H. A% X0 s
dp2.rgdispidNamedArgs = NULL; ( X* ~' }2 `, K" A& S8 A1 e# W: L dp2.cNamedArgs = 0;3 K( d# y1 T" |9 F b" H7 ]/ a