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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:9 c# B3 I# {) n
Name = (WCHAR *) L"Poke";: y( ]9 `9 V, y& ~5 Z, N7 |
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hr = m_pDisp->GetIDsOfNames (
+ n, T# B- ?# V IID_NULL, // reserved
* a/ L6 \5 w3 `$ @" W3 e0 O2 g &Name, // Array of names to get IDs for
$ w5 R Z) w6 L* g. ~' d 1, // # of names in the array
* Q% E* R! ?# Y7 L; p LOCALE_SYSTEM_DEFAULT, // System locale
, K4 r/ `2 w& x0 s &pokeID); // Array of IDs to fill on output
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if (hr)8 I, c' g# `5 p% g/ \
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MessageBox ("Get Poke Unsuccessful");
! m$ }8 ?$ `' ^) b* T$ b7 Z return;
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/**************************传递数据给extend**************************************/- l; _1 W1 s" I* Y, V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");5 s6 a4 m+ F" e# M2 Q
VariantInit(&pokeVariant[0]);
6 s; E3 O, ^3 D pokeVariant[0].vt = VT_BSTR;
+ d( j5 Y& t) ^1 K7 V/ Q pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' r1 L% D( Y+ @/ m( B VariantInit(&pokeVariant[1]);
: Q3 q/ u4 S2 z; `+ |7 h pokeVariant[1].vt = VT_BSTR;
8 x# y6 O# n6 a$ L+ b$ { pokeVariant[1].bstrVal = itemStr;! L9 F, G- l8 Z' m- ?: H/ P- F
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topicStr = SysAllocString((WCHAR *) L"system");; K3 I# F- U9 K9 _: t
VariantInit(&pokeVariant[2]); 4 z, @5 ^7 D* ^: S0 t4 f* E+ w1 a( s
pokeVariant[2].vt = VT_BSTR;
8 u# S# W5 ?- W5 n! i# _% i7 _ pokeVariant[2].bstrVal = topicStr;
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. j) c# E) ]- _* H5 [# ?# M$ z// Set the DISPPARAMS structure that holds the variant.2 f3 P& [5 K# z
+ Q1 R+ S" ?' [- y, Y5 I' z0 V R
dp.rgvarg = pokeVariant;
5 L0 ~/ k1 c; u1 H }# N: k J: G' L7 I dp.cArgs = 3;
9 a. d- z' q$ g! {* j: V dp.rgdispidNamedArgs = NULL;: {: a9 T o+ x
dp.cNamedArgs = 0;1 I9 J8 K* F7 U M1 L% R" c
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// Call IDispatch::Invoke()
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3 L" b* R- d, S2 p; _0 b! ?# I- Y hr = m_pDisp->Invoke(
1 h7 g/ G7 }# M }) _% g pokeID,
: f% S! o* Z9 C7 _: D IID_NULL,
+ q' N- A% h8 ?5 ~4 U% e LOCALE_SYSTEM_DEFAULT,$ H* q9 [; z0 \- {! b
DISPATCH_METHOD,
% T9 D& c, X4 s &dp,
% s/ U% e/ S4 i/ z8 J3 g: N1 n NULL,- p% B3 o8 z9 j- V# n: \+ F/ v( R) F
&ei,
F& ?6 J q. Q% Z: I: J &uiErr);$ n& n; p8 T7 Y6 c6 L$ E
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SysFreeString(topicStr);
) j# n: @. u2 b+ ? SysFreeString(itemStr);/ E" ]6 X. I3 x/ z* g
SysFreeString(valueStr);: E: }- S4 \3 P' t$ ]
: }1 F5 F5 a. B
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???
! B3 F- H; V6 R; m2 s, f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????
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$ O: X+ d! V. I B: v- \; v* p3 S2.这是request的程序
: ~9 z+ Q: [! r3 t B Y* h// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's7 t7 }" b3 a/ t, _* |; t8 @
// type flag to indicate the fact that this variant holds a BSTR. Place the
, j/ Y4 y& J+ E2 a" B// BSTR into the variant structure.3 C4 F; R* E: m7 T) l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 Y V) g. H' w6 [, Q4 {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 Z i1 h1 O; z) z) a, L, ?5 u
VariantInit(&requestVariant[0]);
: o; x7 y4 C! U. n3 i' j* b requestVariant[0].vt = VT_BSTR;, l U5 l U8 x' X* v6 r* G5 |- V
requestVariant[0].bstrVal = itemStr;
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9 h: E" k5 `9 h, J4 y0 Y: T3 B! [7 U topicStr = SysAllocString((WCHAR *) L"system");1 H' i/ C; e% y/ z! _1 F
VariantInit(&requestVariant[1]); 0 _4 K1 b2 G* k1 Z) B6 d
requestVariant[1].vt = VT_BSTR;+ ~' i: `" R' @3 s
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.* C* f" k% `6 t) Q( S
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dp2.rgvarg = requestVariant;! Y. B A+ y% ^+ k Z, z' {5 r3 r
dp2.cArgs = 2;
6 m( e" v* Q+ g0 v8 z$ i, ~ dp2.rgdispidNamedArgs = NULL;& c" X- x1 a% l- i) N" G
dp2.cNamedArgs = 0;0 k7 I& [9 g! s% h) V8 g
% [. x- w) ^* k" J var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()0 _. t3 A$ r: W
: n8 [0 }3 p5 l hr = m_pDisp->Invoke(- b$ f; v# Y# S. ~, r8 {! k$ j* s
requestID,; k/ m$ d3 V4 |7 S
IID_NULL,: o6 `( p6 J( O/ ?9 Z& R
LOCALE_SYSTEM_DEFAULT,% `5 S) Z* E3 w; W" D# z
DISPATCH_METHOD,
9 W& R7 @5 x4 ]$ @; x7 g2 ? &dp2,
0 p) M6 T- X2 T, @2 {0 i# g2 [ &var,
3 q& x3 o) Z% A. E: y i6 u &ei,& U: e+ @- \- K. T8 _+ T+ K
&uiErr);
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SysFreeString(topicStr);4 U% f* ^6 B6 V# y- @
SysFreeString(itemStr);
# _+ j& c( k6 L3 K: t0 L" N9 Y0 k请问该程序是获得extend里面的哪个值?
. a/ ?) P3 H ]% |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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