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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:
" E4 q7 F! }7 _7 W* f' K r. k; hName = (WCHAR *) L"Poke";# P+ C$ J0 A/ o- W& z! l: s
1 `% e. J D' x* d& \ hr = m_pDisp->GetIDsOfNames (( d# h) d/ t. Y2 k1 l+ X$ a u
IID_NULL, // reserved
& F7 r: Z( }# X- Q% s8 Q( a& |! h9 R &Name, // Array of names to get IDs for% H1 [. A8 y+ ^2 b: a1 v" ^
1, // # of names in the array
& U' v8 {0 e& I: Y q LOCALE_SYSTEM_DEFAULT, // System locale! k! V9 ~0 A5 H& m/ I1 c
&pokeID); // Array of IDs to fill on output
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5 d3 m/ [6 _6 T7 V# l& s if (hr)6 m% X: \4 k. l2 L, }
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MessageBox ("Get Poke Unsuccessful");- k q! a# E8 T( B4 V
return;
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3 `2 A; R% c( |7 N0 Q9 k/**************************传递数据给extend**************************************/
/ I' N) @; G3 T. y! t7 {( `/ U4 T pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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- x/ k$ t; g9 N$ g2 D0 V" u& G valueStr = SysAllocString((WCHAR *) L"1232");
- ` ^0 I. P. c0 a: A VariantInit(&pokeVariant[0]); 3 E& J4 R' e' q, {8 }4 `) G# C* `! G6 J
pokeVariant[0].vt = VT_BSTR;
" u0 c, z" p; c x4 K9 @9 c pokeVariant[0].bstrVal = valueStr;5 L Q ^2 u6 q) u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& g7 C7 A2 i% s0 Q0 e* |" M
VariantInit(&pokeVariant[1]); 9 n. O& b3 s* P3 Q6 j! [+ [" o. W
pokeVariant[1].vt = VT_BSTR;8 N, x% U L* u# I. l
pokeVariant[1].bstrVal = itemStr;. v0 z4 `, N" r1 }
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topicStr = SysAllocString((WCHAR *) L"system");
" D2 H2 D. G& M$ u4 Y8 [3 S VariantInit(&pokeVariant[2]);
( |$ f0 n5 Q1 `& h" m; ]- h pokeVariant[2].vt = VT_BSTR;, u' P" a' h# G3 k5 F; y8 Z
pokeVariant[2].bstrVal = topicStr;* L- b2 U: _: O. s6 v- W+ C
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// Set the DISPPARAMS structure that holds the variant.$ H) N ~+ m% [( D4 R6 {1 ^- N' c
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dp.rgvarg = pokeVariant;
- y& T9 U4 G. i8 M$ r dp.cArgs = 3;
; k: T9 W3 c) M' X# D$ d, W dp.rgdispidNamedArgs = NULL;
o0 {8 T, r) y dp.cNamedArgs = 0;7 D% D! _4 y. [0 R0 A2 {$ i
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// Call IDispatch::Invoke()4 S" s) O1 \2 g* }
3 G M5 @+ H. \5 t hr = m_pDisp->Invoke(
9 o! X$ A9 ?* N) Z pokeID,
8 l1 R r5 m: s& a( Z& b IID_NULL,
! V% i9 d8 r1 \5 {+ G* i- |0 }/ ] LOCALE_SYSTEM_DEFAULT,
5 H6 c0 O, [3 g' f6 k7 [9 Z DISPATCH_METHOD,
( @) l9 p( y7 \ &dp,
" X, ^. i- ], P: C7 r# D7 }' b3 W NULL,* g2 q' k. e+ p( j6 N
&ei,
& B' ?3 O' Q N' Y+ U* I# N &uiErr);1 q- k7 R9 ? L2 g" S3 S+ J
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SysFreeString(topicStr);3 U d, p2 z- M. @6 t
SysFreeString(itemStr);
+ O% }8 p: \1 F1 s4 S' Z" c SysFreeString(valueStr);
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5 I- J3 ]7 Y% |# m6 ~" d \2 k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???% j+ g9 p; {# U; K+ |( {
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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2.这是request的程序5 H. ]- a1 |; ~( ~) y: J$ W5 T
// Request a value from Extend7 U( H6 b/ C/ g2 W8 A3 G
//
: T* @' O2 y+ u; O# L// Initialize the variant that will hold the BSTR. Set the variant's7 }& R9 X X+ V2 M9 D; m
// type flag to indicate the fact that this variant holds a BSTR. Place the: `' K) }4 _4 R# n- U& a
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ _' D% H# ^: o3 o* K2 h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; o( y/ i- e% V. ^8 ]1 f
VariantInit(&requestVariant[0]);
5 d% B0 v+ V' } L1 {" [ requestVariant[0].vt = VT_BSTR;
& }2 p' F! e/ c2 v' ?8 G2 I. z requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");2 g+ h' F! n% a' ?. A, R; q! e
VariantInit(&requestVariant[1]); + j5 p! q5 p4 ~+ z1 H7 x* e
requestVariant[1].vt = VT_BSTR;
( ?3 @* {# m' j# |1 p requestVariant[1].bstrVal = topicStr; T6 ], v i: W
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// Set the DISPPARAMS structure that holds the variant.# d& m7 r- D" v$ p6 O: N
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dp2.rgvarg = requestVariant;: G v3 Y f! K/ I& D- v. N% w' h
dp2.cArgs = 2;$ ^5 d0 e" X6 D8 H; i! F3 ?
dp2.rgdispidNamedArgs = NULL;% S* j) {6 |9 s% D' I
dp2.cNamedArgs = 0;
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2 z- [; m; R+ q% ^6 i var.vt = VT_EMPTY;
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" g n: [9 S1 _& f% v3 u// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
+ h2 q @& X/ L3 _8 ^ F requestID,
1 b9 l# Z4 j4 K* x _ IID_NULL,
2 k% N' g" Z1 R4 r& ?% G* n LOCALE_SYSTEM_DEFAULT,8 {' ]6 }; |% ^; r# o
DISPATCH_METHOD,- e$ v. F) |! A( s0 `' ?8 M0 {
&dp2,
. |( ~7 l. O/ E" U( N* r y &var,) q3 [! Y3 o% U) w; Y: c0 K
&ei,
/ z7 s# i! Q7 J &uiErr);0 M+ s7 `+ s' T0 n8 e
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SysFreeString(topicStr);7 K: k$ B; Y3 j& b
SysFreeString(itemStr);
3 K4 {% G% R* Z# O. @' Q请问该程序是获得extend里面的哪个值?% a7 g0 C6 h `8 r! d* L. s
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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