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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:1 S2 ^+ j* A* t* K# a9 l% E- w
Name = (WCHAR *) L"Poke";
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+ {3 @, L! z7 I Z! p6 ] hr = m_pDisp->GetIDsOfNames () {% G- E1 i, Z& h0 O7 n
IID_NULL, // reserved, ?7 c6 H9 k% m) q
&Name, // Array of names to get IDs for
8 L3 a/ I* w0 a& y 1, // # of names in the array. ?0 X- O* w* `7 i% m& G+ j; ~0 L
LOCALE_SYSTEM_DEFAULT, // System locale
! X0 d1 t) B3 l' H) y4 |0 b &pokeID); // Array of IDs to fill on output& `5 I. M8 }. C; }; M$ A( j
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if (hr)( F/ r; v5 u; I
{
9 B% N) [" g/ H. e3 l! R MessageBox ("Get Poke Unsuccessful");- F) A4 R& V- I% q) L! s0 ?
return;
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/**************************传递数据给extend**************************************/
3 W9 z- j U: u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232"); q/ h9 {4 s/ q% x7 `8 N+ E
VariantInit(&pokeVariant[0]);
- M' Z& m8 C( Z1 n- X9 ] pokeVariant[0].vt = VT_BSTR;% \6 x v9 g2 U2 H, j
pokeVariant[0].bstrVal = valueStr;! j! a: P8 t1 z+ u( A& q8 k
1 Y2 q3 c) H6 G$ P) [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: q; @& h/ ?: t2 t& H9 A% M3 M. Z3 {
VariantInit(&pokeVariant[1]); / ]9 n, ~. q% U3 y; R
pokeVariant[1].vt = VT_BSTR;
9 C4 p- y4 g6 K$ g" R pokeVariant[1].bstrVal = itemStr;
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! O# \ J! a: e topicStr = SysAllocString((WCHAR *) L"system");
4 r4 q! n& K% V$ p/ K/ c VariantInit(&pokeVariant[2]); % a( |7 c. c& x/ u
pokeVariant[2].vt = VT_BSTR;
6 B# Z9 G! s P( s pokeVariant[2].bstrVal = topicStr;8 q8 V1 Q* D; t3 q6 n
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// Set the DISPPARAMS structure that holds the variant.9 B. [/ v/ C( B; O; J5 \$ L2 N
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dp.rgvarg = pokeVariant;
% i( A E% Q. \8 d8 t" l dp.cArgs = 3;3 @8 t- p, t% y
dp.rgdispidNamedArgs = NULL;
9 d9 k8 b, w/ `* ]) Y7 @. m0 Y; `* E dp.cNamedArgs = 0;
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1 c# h7 D- _/ G// Call IDispatch::Invoke()
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' A' d) |9 b# X9 H, K2 }: T hr = m_pDisp->Invoke(# h a/ M+ o- K) b& x
pokeID,- L$ q1 a( {2 A- _6 j
IID_NULL,9 n- G9 G \) l }7 y$ @+ a) R
LOCALE_SYSTEM_DEFAULT,
" y# `% B7 t' I* Z7 R C DISPATCH_METHOD,
! [& x5 R. l1 g0 A7 |3 x &dp,5 V* [: Q8 D% H _+ G- J7 {
NULL,( f! [! Y$ P: g, c
&ei,0 V) b; ]5 M7 Y; `( A. M b/ h
&uiErr);9 S, {: G. q( u0 Q5 U- R5 X. h2 i W
" {5 C( G3 V( W: t SysFreeString(topicStr);
& Y4 d V5 ?5 g+ T5 o SysFreeString(itemStr);
: P4 O9 |0 z6 h- i( m' i; Z SysFreeString(valueStr);" }# l# S7 G( D( d: b
% Y- B! P6 U! I! y0 p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???
- Y; t8 \& G' i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????# l7 \# W* e Z, a) `
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. H* Q* [! \3 p2 t2 Y2.这是request的程序
7 |) J, L g, n7 a& Z) Q// Request a value from Extend& K3 t) Q7 H1 A, j+ p
//
5 x5 z% M: ?' E$ F# v9 M// Initialize the variant that will hold the BSTR. Set the variant's
; z, F7 W2 @+ {3 V" C9 F9 O0 i// type flag to indicate the fact that this variant holds a BSTR. Place the6 g3 D, v% t; a! N
// BSTR into the variant structure.
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% K5 }5 R# t- S3 t/ g/ u6 Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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/ V9 u O0 B# K" j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ T. Q: v7 r3 s9 X VariantInit(&requestVariant[0]); ' r& g( \) D! e6 U) w9 b: z( r
requestVariant[0].vt = VT_BSTR;4 J, Z) G8 Z/ [% E/ N
requestVariant[0].bstrVal = itemStr;
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" _& R* `$ P1 X topicStr = SysAllocString((WCHAR *) L"system");& z: N2 q9 @' i5 l3 k4 F* C
VariantInit(&requestVariant[1]); % `$ G# d" e9 M9 S- \
requestVariant[1].vt = VT_BSTR;& G8 k) A2 Z4 I. {) ~1 i: Y
requestVariant[1].bstrVal = topicStr;
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" W" _ A" U j/ J9 _5 @" ?// Set the DISPPARAMS structure that holds the variant.; F9 q" d- L% @' }/ T% c) n; J
, n2 k( C- Q7 b dp2.rgvarg = requestVariant;$ \, N" K& k0 C! m
dp2.cArgs = 2;, J! L/ D" D, ]' m5 M
dp2.rgdispidNamedArgs = NULL;
; J% E6 w2 L! B& @7 A- |6 y dp2.cNamedArgs = 0;
% p- E: M5 y9 X' @ D* ~; N, [. S1 H7 ^0 v# n2 D
var.vt = VT_EMPTY;/ P. z- s& [5 u! S0 P
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// Call IDispatch::Invoke()
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0 @' m- q# @8 C0 x# [0 E hr = m_pDisp->Invoke(3 k7 z: G D L, Z6 I
requestID,
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LOCALE_SYSTEM_DEFAULT,7 z- X, p0 J; g$ Q. D( U7 H X
DISPATCH_METHOD,5 X. Z) e' C3 A; E
&dp2,
- |) b3 c8 t! e2 t8 Z+ O" h &var,
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&uiErr);' y9 h+ H7 D3 K0 B7 p) { g
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SysFreeString(topicStr);; O3 B4 |) t" c. i0 m* t
SysFreeString(itemStr); d, }( ]5 h2 U, v
请问该程序是获得extend里面的哪个值?4 c) h) l, T: }( c" C! P
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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