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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:/ w. m# q1 z) g [' U+ q
Name = (WCHAR *) L"Poke";
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7 s% _; Z. T' V1 R ^ hr = m_pDisp->GetIDsOfNames (
& U: \( L) m$ s/ V0 c- r IID_NULL, // reserved
0 N' p2 R$ V# p! h) v &Name, // Array of names to get IDs for" `! ]7 c( z+ B% E i# ]* A5 R
1, // # of names in the array
7 `& W7 z& p- h% V5 N LOCALE_SYSTEM_DEFAULT, // System locale
: Q5 v8 D, i" g5 r/ U &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");% u8 I* M7 I; ^" B4 q$ s* ~7 i% X
return;
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/**************************传递数据给extend**************************************/+ X% j/ N2 F' W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
/ d& _) [& V) c- }* S: d8 a% }% Z0 D VariantInit(&pokeVariant[0]); + v; N7 W9 F3 Y
pokeVariant[0].vt = VT_BSTR;: R9 t) P0 }3 y. x' H
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 T2 n- M! Q0 N* x9 O# Z' n
VariantInit(&pokeVariant[1]);
! j) z( v8 f' c8 V pokeVariant[1].vt = VT_BSTR;
, v0 v4 x' H2 B9 c pokeVariant[1].bstrVal = itemStr;$ b& ? ^' _8 P7 [" A/ ~! c1 V
1 J3 D. U0 p& F$ p7 y topicStr = SysAllocString((WCHAR *) L"system");- P% r5 D; W J5 i
VariantInit(&pokeVariant[2]); & V' n$ }6 Q% r: G( G* h
pokeVariant[2].vt = VT_BSTR;& q, x7 a/ q( s2 W+ q" Z* ]
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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* ^. c. _; [" `; r1 N dp.rgvarg = pokeVariant;
) x3 G/ p7 G7 X# Q dp.cArgs = 3;
- [ V* |' X/ n u% e dp.rgdispidNamedArgs = NULL;. g0 X6 z( K H6 s- ^7 K
dp.cNamedArgs = 0;
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, M! o4 t# s% [8 ?0 ^" b. I// Call IDispatch::Invoke()* p+ d5 H6 ^ a" A/ s, m) |
, Z( @) L; B" b! E) z hr = m_pDisp->Invoke(
6 [4 F! G' }+ M5 Q. C! M pokeID, q! O5 x, f+ q1 z6 M+ G
IID_NULL,; Y- C8 z- U! d2 a
LOCALE_SYSTEM_DEFAULT,
. @2 ?, z Q& J7 D% b# V: w4 F DISPATCH_METHOD,
; H/ P! ]3 F! a+ P* ]) _; ] &dp,$ a9 @6 s; |/ q4 {2 ]# w# e
NULL," X0 i% L4 W6 x: @4 t+ k
&ei,
: E9 L4 c* N1 B# I% n &uiErr);/ k+ s$ w1 b" Y. M
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SysFreeString(topicStr);9 I$ Q* M6 ], \
SysFreeString(itemStr);% H+ c5 f$ ^' G3 B% E
SysFreeString(valueStr);( G6 m7 d% }' `7 A6 D
* J0 o! W8 K5 X( b$ d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???
m8 X: M. w5 k' W3 O( b# [( }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????8 ~6 `9 x6 S, d5 @8 j9 u1 ^
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2.这是request的程序% e% c' E x- D9 P, I
// Request a value from Extend. S: J0 x! _: d' _8 r
//
. o5 Q' O% |7 H! C. I. z: s// Initialize the variant that will hold the BSTR. Set the variant's
6 j! _4 y& L- o$ |. C, t// type flag to indicate the fact that this variant holds a BSTR. Place the; F$ u8 l: F; a+ k3 `9 t
// BSTR into the variant structure.
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& D: Q" |+ a8 [2 | J, r* u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* N: O9 f ?: g
VariantInit(&requestVariant[0]); . h+ w& S( R! e3 X& Q+ j
requestVariant[0].vt = VT_BSTR;# ?- M- W, D+ b' b/ m' D
requestVariant[0].bstrVal = itemStr;
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' ~4 z9 a$ Y9 E6 Z5 F8 u9 S topicStr = SysAllocString((WCHAR *) L"system");
8 V0 P, t" f5 N7 u, V1 d7 A9 y! ]/ Z VariantInit(&requestVariant[1]);
! ^- T8 g7 S3 T. _ requestVariant[1].vt = VT_BSTR;/ K& |$ I& c3 D3 P
requestVariant[1].bstrVal = topicStr;% g& S% Y* ]0 x3 l7 F! s
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// Set the DISPPARAMS structure that holds the variant.& v" u0 z; } n" A# |
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dp2.rgvarg = requestVariant;
2 A" X0 N6 B9 I) ^6 S, G dp2.cArgs = 2;
* a. o( k( g! c" G) C0 O dp2.rgdispidNamedArgs = NULL;
5 { M- G: X& l, j/ A7 t dp2.cNamedArgs = 0;6 `) ]8 c/ @( G* }. g9 N- h
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var.vt = VT_EMPTY;" c, a+ \3 v$ B! P7 ?
; |* g: d) T; C6 U2 U' J* t/ G h// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
$ d" u5 G+ Y+ T4 S% o, c. m requestID,9 M- Y+ P/ ?3 A M; ~
IID_NULL,8 e5 H! ?$ P4 X+ F
LOCALE_SYSTEM_DEFAULT,
* Z# [/ s6 k: {8 }2 | DISPATCH_METHOD, @" n# i. G# T- [0 e
&dp2,
9 ^! g0 Q8 ?; l. m &var,
' v( l: P0 m. b, c1 ~ &ei,
4 l* \/ V4 R6 ^" {% {6 B! g/ E" s* t &uiErr);
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% |4 A+ m! ]% c0 m- E' m, b SysFreeString(topicStr);
& t+ ]1 D7 C/ Z( \2 x3 T SysFreeString(itemStr);
) s7 O4 u& a) V. \$ C) U+ D) m1 T请问该程序是获得extend里面的哪个值?
2 U2 {4 J3 J* \9 V6 E6 `5 c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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