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5仿真币
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:/ Z8 m# m6 a6 C! c* d& w
Name = (WCHAR *) L"Poke";& t4 u( }: e; u
+ z8 |% T9 q" \% i! Z# G1 W hr = m_pDisp->GetIDsOfNames (
! ^; N& ^9 Z \0 ] IID_NULL, // reserved
R- [5 x8 g1 T- Q2 r2 ` &Name, // Array of names to get IDs for$ A+ N: U' O! |
1, // # of names in the array% P! D; A/ Q$ }- |' C) C1 f( P& I
LOCALE_SYSTEM_DEFAULT, // System locale
# a) g" t. [9 p. x% U+ P* M &pokeID); // Array of IDs to fill on output; L1 h$ J( H3 O2 I) l# M0 S
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if (hr)7 x# s3 M( d4 T; D: |4 o% x6 I
{
9 V8 T, \3 n" M" F MessageBox ("Get Poke Unsuccessful");$ B0 ?* O( x5 Q8 ? p4 G
return;
2 r0 k2 z9 g5 K* G: n4 b }
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0 T8 W, A. u+ H5 ~/**************************传递数据给extend**************************************/
$ K. l _! T; E, h, v; \: m4 E pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");/ W0 N) f) {! k' T3 X
VariantInit(&pokeVariant[0]); / a" M7 ~+ M0 b9 I" S4 v
pokeVariant[0].vt = VT_BSTR;
! d4 B* r' \1 o9 X/ X3 \ pokeVariant[0].bstrVal = valueStr;4 E- j! B/ Z# ]6 j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 l. r# g! ?, [: K
VariantInit(&pokeVariant[1]); $ p# x- q' d8 g! T; L0 m7 v% e6 n
pokeVariant[1].vt = VT_BSTR;
+ d, E6 h0 S6 E3 w' i) G$ ]: `( z+ I6 b pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system"); H3 V) n' ?0 f3 j2 O
VariantInit(&pokeVariant[2]);
4 E; l Y0 o o' R/ g$ ^7 u pokeVariant[2].vt = VT_BSTR;
& O" l2 ? n- W4 s* s1 T9 \$ H pokeVariant[2].bstrVal = topicStr;7 g/ ?# U2 j9 N1 A8 L3 ^
0 {7 w, s2 ]; x1 B// Set the DISPPARAMS structure that holds the variant.
; Q- s# r9 ?6 F" N
7 b$ c" y# U- c& o; U$ O* d' {5 z dp.rgvarg = pokeVariant;
1 m: a! y' O; g% u dp.cArgs = 3;9 e; h" u7 `6 |+ [/ Q
dp.rgdispidNamedArgs = NULL;
I5 v( O( m8 n/ N" H dp.cNamedArgs = 0;
$ R% N; H& ?: x# X
" Y6 `0 P# ?. o// Call IDispatch::Invoke()- A# n8 T: Q2 M+ h6 |+ |0 t0 S
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hr = m_pDisp->Invoke(
! T% y3 h( B4 {; g. j8 `2 R# ~ pokeID,
4 z! W; l* I4 t9 z IID_NULL,6 l, @* v {8 l4 y# m2 _
LOCALE_SYSTEM_DEFAULT,
x L. d7 x% b* L0 ]; H DISPATCH_METHOD,
4 G" i0 y: W6 s6 e &dp,
) A+ @# \/ }+ R; M. k" u NULL,+ I0 S8 X! F9 m0 B- R
&ei,
5 d5 F, O! Y4 V; ]0 J1 ], y/ K3 Z &uiErr);
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SysFreeString(topicStr);
: h' i: _$ a6 M7 }8 R, i2 Y6 E SysFreeString(itemStr);
* z& W! i- J! i- ^) q7 {6 ~ SysFreeString(valueStr);
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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???
& f/ d' r, f" { E/ i0 l& `% G+ e# h; 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????' Q5 N5 Q, B% j- a: `! t# r. C
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' N; |/ ]( t! P1 i `' h7 v7 D5 X2.这是request的程序3 ^. n4 p+ |" q' t
// Request a value from Extend
5 L( E4 E) p( b) G) y8 C//
/ j$ ~8 w' r2 _8 c& |// Initialize the variant that will hold the BSTR. Set the variant's* `" A2 G" m# i
// type flag to indicate the fact that this variant holds a BSTR. Place the
! q7 I- e. z- S9 ]! t// BSTR into the variant structure.
: Z/ D4 ^7 Q" J5 I" B+ V! G
9 d4 ^# k+ P6 _0 R8 H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
V! r0 J0 X7 J* x 1 v. E k) e/ A& H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 M# O3 z& x+ h6 G- ~5 h2 B VariantInit(&requestVariant[0]); 1 j3 ~& P7 d) N" [ o
requestVariant[0].vt = VT_BSTR;1 B( \9 W5 `( o" R8 F. i
requestVariant[0].bstrVal = itemStr;
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7 V/ t/ _/ F# A0 @/ z( B6 w topicStr = SysAllocString((WCHAR *) L"system");; L5 y+ H' r `: I# O9 @7 E/ C( M( X8 k
VariantInit(&requestVariant[1]);
2 V6 D4 _' s2 a J) `5 f1 | requestVariant[1].vt = VT_BSTR;+ C! R' j4 Y" }# _
requestVariant[1].bstrVal = topicStr;9 x3 S( H7 ^( p e6 k5 W! R' ^
8 c$ F+ Y! G& z# d- f8 ?// Set the DISPPARAMS structure that holds the variant. P. ^' A3 {& F# Z5 h: K$ \
& u6 ?' M( p2 r- \ dp2.rgvarg = requestVariant;. x* X. F% I0 ]7 [) x( ]
dp2.cArgs = 2;- T Y/ `5 v- a8 z8 Q; b" {
dp2.rgdispidNamedArgs = NULL;
$ I. Y4 ]% f( r dp2.cNamedArgs = 0;
$ q$ L9 a' J/ y& o/ k" f h/ |' X1 G- B5 m6 W+ z$ x6 e
var.vt = VT_EMPTY;
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# m$ t: ^# g Z, d// Call IDispatch::Invoke(): A7 {& f3 ^9 N" u. {/ ?
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hr = m_pDisp->Invoke(
# H/ W5 k w6 b+ C requestID,+ o2 R4 w2 ^1 h" _. c! `
IID_NULL,
3 m# L+ k# K+ t LOCALE_SYSTEM_DEFAULT,
+ D% |5 t1 d- f( F& G DISPATCH_METHOD,
0 H3 e# `: a3 ^% p, g &dp2,
1 Q5 M+ J8 U7 P. o$ X" w( y( I &var,
6 i( C1 @) h; C5 y &ei,8 _6 x, }& t0 ] }7 ?6 G
&uiErr);
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SysFreeString(topicStr);& q5 o' k, ?0 T: [; D0 K# e( h
SysFreeString(itemStr);
$ P: N1 U0 Z. a2 e; c- u0 j请问该程序是获得extend里面的哪个值?2 a5 r B- a8 L d2 u1 a
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???? |
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