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:) U( B& }% F9 x c6 J
Name = (WCHAR *) L"Poke";9 |( a0 e8 v- g. f
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hr = m_pDisp->GetIDsOfNames (9 F+ h4 M9 D5 u: V; _
IID_NULL, // reserved
; ?: g1 ~0 N3 E, S; V &Name, // Array of names to get IDs for- a2 j! w% A7 ~1 v" S7 @
1, // # of names in the array1 n5 G9 p. G) I% r1 @; d
LOCALE_SYSTEM_DEFAULT, // System locale* [6 g2 O- p9 F C; s( i- |9 B
&pokeID); // Array of IDs to fill on output9 t1 D3 J, t* ]+ L$ V3 _& t
) A( x, q+ v# \5 Y7 m if (hr)
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MessageBox ("Get Poke Unsuccessful");: H g5 b; T' e- r
return;
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' m$ s6 [ | r( e( G- ] /**************************传递数据给extend**************************************/, J( Q: X: D7 P9 r" V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- T4 x. J0 E/ g* @, o2 P2 j
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valueStr = SysAllocString((WCHAR *) L"1232");5 a8 y8 a8 H! |# Z- F9 z
VariantInit(&pokeVariant[0]);
. E) A; |2 r9 Q, x: {; E pokeVariant[0].vt = VT_BSTR;: q8 A% Z+ ^ ]+ I D
pokeVariant[0].bstrVal = valueStr;; F8 ~' k% i; G- z# W5 @ c" I
1 p8 n9 S( d1 Q" M; w& A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 \; x8 `: J, x/ I" e VariantInit(&pokeVariant[1]); . r. Z7 I: q/ y% ?2 u; N( X
pokeVariant[1].vt = VT_BSTR;/ r$ W- `. W: M: ~; I
pokeVariant[1].bstrVal = itemStr;
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1 I) |. K* V* L; M- @+ O: f topicStr = SysAllocString((WCHAR *) L"system");
% Q! K/ {% U3 B! g, q VariantInit(&pokeVariant[2]); ( S7 B5 g2 ~! L0 O: c' J! `
pokeVariant[2].vt = VT_BSTR;* J! P8 B3 O G
pokeVariant[2].bstrVal = topicStr;8 T) T+ e) E5 j2 n
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// Set the DISPPARAMS structure that holds the variant.' u2 A* B0 H+ _! I, x" N$ \
& W. d7 ~" a( o0 J, m! ?9 B dp.rgvarg = pokeVariant;
% z2 ?+ _- Q" C dp.cArgs = 3;
, f" ] o- @# _) h- X, m0 K: } dp.rgdispidNamedArgs = NULL;$ k" P( }" t- @8 @$ a
dp.cNamedArgs = 0;7 \% {$ v5 O5 h# \! A) O4 Y
, p* [5 }) ?- x1 z* \' R' l* ?/ V // Call IDispatch::Invoke()
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; J: Q% m! G3 i4 n2 e hr = m_pDisp->Invoke( i+ ^1 h* s- v- M: A& L& Z: u) ^
pokeID,: I& V X, g6 h1 L: M
IID_NULL,
- B3 v! Z2 c) s LOCALE_SYSTEM_DEFAULT,, B3 V5 y$ A6 Z* w \
DISPATCH_METHOD,/ s7 L5 B& Y* O: r u! l
&dp,
! j' d9 `$ F+ ~8 ~5 Q4 R NULL,
0 C$ o( g2 J q% s6 J &ei,/ a# }% [# ?& Z# r- j# F' {
&uiErr);9 t/ g3 o% D! w. B- ~4 Y
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SysFreeString(topicStr);( P# X* Q- x3 s2 ^8 o4 V' v
SysFreeString(itemStr);6 a8 o; L \0 D8 t: q; o1 S1 \( ~4 H
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 d0 i# \0 w8 M1 Q" ?: v. u2 E 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????/ D% l2 w4 H' ~/ f3 g4 j3 S
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; O& }1 T1 ^- h2 b/ n$ W 2.这是request的程序0 |9 e9 ?5 W6 S4 {( ^2 e
// Request a value from Extend- `0 L9 O( ^/ T! u
//- E4 E5 S! y+ H2 x) b7 p
// Initialize the variant that will hold the BSTR. Set the variant's
# r& b3 `2 O4 k; ?# Z% r5 J // type flag to indicate the fact that this variant holds a BSTR. Place the2 o: k2 X0 \' c+ H* a) ^9 `) B
// BSTR into the variant structure./ L/ p: M' p1 t" m0 P. K) j. q
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: }" @3 t+ Y6 ]: L VariantInit(&requestVariant[0]);
1 @' s' H( C+ Z requestVariant[0].vt = VT_BSTR;$ \0 Y `( }& u% }
requestVariant[0].bstrVal = itemStr;
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. q3 k( w5 h* W, { topicStr = SysAllocString((WCHAR *) L"system");
# j3 u$ A0 ?1 [. W* W VariantInit(&requestVariant[1]);
, i& p# G5 @. w8 [6 l9 e4 D requestVariant[1].vt = VT_BSTR; c- g" d4 v8 }4 l5 K: X( D- r
requestVariant[1].bstrVal = topicStr;; i" W+ Z9 g% F& `
5 |- _. H3 X0 W$ X7 t$ ], E' e3 M // Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
2 Y9 H0 @* [. H k, d2 {, g$ L dp2.cArgs = 2;
3 }* v q& Y5 @5 i dp2.rgdispidNamedArgs = NULL;
, l Q6 s! l: m" X9 H0 @ dp2.cNamedArgs = 0;
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/ L M, @5 a3 \+ q: G var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()) {, A6 A; Q2 e& ]
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hr = m_pDisp->Invoke(: b# L7 M8 A1 X2 e
requestID,! L5 ^1 }+ C8 m9 I8 p( E5 w# O' `. ^
IID_NULL, q9 {2 N4 q- t8 z
LOCALE_SYSTEM_DEFAULT,# P6 b. I4 h- Q* j
DISPATCH_METHOD," a- E N* L: |9 i5 b9 }
&dp2,# C- S; B; c# s8 S
&var,
- k$ _- A, D1 X) J6 V* z( Q &ei,1 Y1 X. G( ]( J
&uiErr);
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SysFreeString(topicStr);" y% Y! v& `, c
SysFreeString(itemStr);: `! o4 j2 u2 W
请问该程序是获得extend里面的哪个值?* C) I% o; f+ P' w' 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????
我来回答