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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:0 R1 c1 ^+ U! s0 @, v
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
- v/ e' D8 `+ o IID_NULL, // reserved
" K+ p( T9 m1 B6 h) ?8 c &Name, // Array of names to get IDs for4 i! b1 ^6 H1 U: z6 j9 p
1, // # of names in the array
- W& \% u- f1 s1 J7 b/ I& c LOCALE_SYSTEM_DEFAULT, // System locale( p! A# L' W# Q! r% o& ` F
&pokeID); // Array of IDs to fill on output" v4 A# ]* v B: q
@. Y6 U# t7 q6 `, |& \
if (hr). ^9 q& E: f* O+ d
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MessageBox ("Get Poke Unsuccessful");
9 o9 G: b; X. Y, Q; Y6 P return;7 c4 Q( `2 A. ?6 s! @
}
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/**************************传递数据给extend**************************************/! x. q8 N! i R+ I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 B# H5 z6 e0 j6 J" q4 y
5 |7 P3 V8 ?) U& f' g( S9 S valueStr = SysAllocString((WCHAR *) L"1232");
$ `* k1 v! Q0 Y8 z5 \7 n4 Z7 I$ M VariantInit(&pokeVariant[0]);
, P, U$ [) }# l: T( X pokeVariant[0].vt = VT_BSTR;( a5 c4 F# Y2 J9 B
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 f0 @0 ^: W9 _$ R; p5 R VariantInit(&pokeVariant[1]);
5 C" D. g* z: } pokeVariant[1].vt = VT_BSTR;: p# p2 w) h; x, N+ \/ v
pokeVariant[1].bstrVal = itemStr;- \* ?; C8 q$ q5 z2 y
. L6 }( M! q- J9 B1 ?1 O topicStr = SysAllocString((WCHAR *) L"system");
; S, U6 A- R4 d# a$ g+ ] VariantInit(&pokeVariant[2]);
+ y: x) g- X3 G% z2 w; b pokeVariant[2].vt = VT_BSTR;& D' M+ S$ W9 L) X' I0 M- H3 i
pokeVariant[2].bstrVal = topicStr;# J+ R3 e* s* L' j
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// Set the DISPPARAMS structure that holds the variant.+ S5 C1 U; i4 v7 O3 Z
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dp.rgvarg = pokeVariant;5 h+ | j1 D1 h9 w
dp.cArgs = 3;! k5 H4 u- U/ D
dp.rgdispidNamedArgs = NULL; ~; S/ D$ L& N' j: N9 e
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke($ l4 y4 h% S e& }' E7 C$ V
pokeID,! v1 d2 n, x' P. |. h# F
IID_NULL,' t: |+ y! o/ ?+ E9 o# F* v! g2 W
LOCALE_SYSTEM_DEFAULT,3 ]/ ?: L) D; \9 K2 c
DISPATCH_METHOD,
' N& L6 n A9 }. O1 q+ \' _ &dp,
( g4 L* ]2 u5 z9 p1 d7 b NULL,
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&uiErr);, B5 V6 q1 a! c1 i
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SysFreeString(topicStr);/ ^& S6 z- M0 n. B
SysFreeString(itemStr);
+ D* V' g" j6 A& Q+ e 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???
3 v9 `1 T' p! A1 \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????: G J0 }) v( s; u4 L6 v0 O
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2.这是request的程序
7 a! z6 ?7 r& E2 D0 Q! P9 ], h// Request a value from Extend
6 Q$ ?. a( r/ w+ P) }4 V//; a9 M3 g' a' V7 o
// Initialize the variant that will hold the BSTR. Set the variant's
4 M& m b# J1 d; F2 Z7 x// type flag to indicate the fact that this variant holds a BSTR. Place the
8 A* F. N& q7 {* ^: ^, @// BSTR into the variant structure.! A1 ?9 u9 C/ A$ g4 }% |1 V. e, K
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# l9 K, i! a6 P6 {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 D, {% t# C( K& a7 b' | VariantInit(&requestVariant[0]); 3 s6 T, e: Q) U3 H9 f
requestVariant[0].vt = VT_BSTR;
2 g: _) a' Q' F! E6 A# D* | requestVariant[0].bstrVal = itemStr;
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8 L2 g# H& }& r* o1 w1 ?! R5 @ m topicStr = SysAllocString((WCHAR *) L"system");
: m! H; R( u- F' \! ~ VariantInit(&requestVariant[1]);
) e9 p( G, j, H9 ? requestVariant[1].vt = VT_BSTR;
1 L% c/ l; y/ g% K" O- G requestVariant[1].bstrVal = topicStr;; E' d% H( m, {+ H
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;4 A- o; O. g- \2 z9 _
dp2.cArgs = 2;
# Y K+ W0 q, U% |7 J$ Y5 R dp2.rgdispidNamedArgs = NULL;
; X" G- @: {0 t1 H dp2.cNamedArgs = 0;, d/ X$ `* C) o# s% t0 {7 `
+ g& I" I/ W# y* A! f var.vt = VT_EMPTY;+ c( Q! d. r* _* X1 g1 Q: M/ @6 s# x
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
7 a; E' q( P' w5 P1 j" s8 Y requestID,+ f s; d1 q5 B9 M- D
IID_NULL,4 F& ~) s7 I2 e& b6 U/ W
LOCALE_SYSTEM_DEFAULT,3 Q6 z3 i+ \, H0 T$ i; L
DISPATCH_METHOD,' |! A/ g7 O$ r# E% {
&dp2,; Z( ]4 k- e( w! o# x) i' [
&var,7 _: m; y# J6 Z' Q5 {5 u
&ei,
, l3 R, D8 I* o5 d! P &uiErr);% b. I$ O$ C$ Y U
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SysFreeString(topicStr);# w9 h! c1 @- @
SysFreeString(itemStr);
( {$ u0 K% ^' i2 R6 [请问该程序是获得extend里面的哪个值?# g4 c+ f& L" s1 Q+ I) Y v; 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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