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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:
; N4 {) r* ~6 s AName = (WCHAR *) L"Poke";
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7 z4 Z& Z8 M8 h/ j0 _$ I) v hr = m_pDisp->GetIDsOfNames (' s: g, R, f: j$ o3 Y0 M6 |
IID_NULL, // reserved+ N: O/ ^2 s! b# h/ P* Q3 A
&Name, // Array of names to get IDs for
. b- V$ Y# G. f! e 1, // # of names in the array
h5 n4 X# z9 I+ s) u1 D/ v LOCALE_SYSTEM_DEFAULT, // System locale
+ P; I2 g7 W4 K8 \9 Y5 g' ^* Q' V &pokeID); // Array of IDs to fill on output- l5 {7 _* ~. V; t1 d
4 E |8 V; v2 E6 {. k if (hr)
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MessageBox ("Get Poke Unsuccessful");7 c+ |. @8 p$ P! I" h+ n& y& k' l0 A
return;
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- z3 @) C% h- Q5 g/**************************传递数据给extend**************************************/5 q* P; g+ C. C0 Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ i) J- |; d" ?; `& f
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valueStr = SysAllocString((WCHAR *) L"1232");$ @* B9 O ] P* k' s+ m) V
VariantInit(&pokeVariant[0]);
+ i, l/ \, u5 w& V. \: V pokeVariant[0].vt = VT_BSTR;5 n# D8 G" D. P! V* L( }
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' t o% V( h" F2 e VariantInit(&pokeVariant[1]);
v8 B9 m# ^/ J& Y pokeVariant[1].vt = VT_BSTR;- H2 z7 a1 \! u
pokeVariant[1].bstrVal = itemStr;0 u: {* n$ P- A! ^; U# c
; I0 ^2 z: S6 |3 k topicStr = SysAllocString((WCHAR *) L"system");
2 A: R; f3 z+ X3 ~4 _0 i VariantInit(&pokeVariant[2]); # `" m9 E V f
pokeVariant[2].vt = VT_BSTR;
) e% c- e* x) x pokeVariant[2].bstrVal = topicStr;, P$ n$ ]* S: o3 q/ |
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// Set the DISPPARAMS structure that holds the variant.
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5 W' b t X. D. `# m dp.rgvarg = pokeVariant;1 P2 t4 i% k/ u6 |( l2 b
dp.cArgs = 3;
/ u5 \9 L6 b; D( m c6 a: V8 r dp.rgdispidNamedArgs = NULL;" S3 G' c/ p. Y
dp.cNamedArgs = 0;0 n( B$ F6 v u' {8 s
" H7 q$ \0 }. E0 {2 Z% G* J ^// Call IDispatch::Invoke()
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, Y- O+ @; \( O3 R/ T hr = m_pDisp->Invoke(
/ b j5 K7 y. J9 p0 ~/ j6 Y/ t U pokeID,
& u' I6 u1 p- E+ I IID_NULL,
) D. W& R2 h9 Y3 D3 e LOCALE_SYSTEM_DEFAULT,
; K) Y) L# _0 f( s z: f DISPATCH_METHOD,; [3 t! s5 K- a* `6 b7 @
&dp,
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&ei,6 j# @- p& t2 E% p# C u- Z9 H: f
&uiErr);' s, z& J3 b- c6 O
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SysFreeString(topicStr);! R/ Q! `+ ]' }% L
SysFreeString(itemStr);
8 E6 c+ Y' [$ O' }' L- ]. e" ` SysFreeString(valueStr);, ~& c+ U) ~, n
; n. @! N @7 Z. y4 q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???
$ \1 P( h$ ]+ E0 v N+ R! X7 _# 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????
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' b( V% `7 K; Z# S4 ?0 J2.这是request的程序% a! e3 W6 q. F+ S) o6 p0 Z1 V! X. \
// Request a value from Extend
. b! L: g, d; I" r" d//
8 M. I, k! {: C6 l! K3 J# J// Initialize the variant that will hold the BSTR. Set the variant's
8 H( C8 f8 a4 j. \4 B7 W// type flag to indicate the fact that this variant holds a BSTR. Place the
( l/ S z* g M4 M// BSTR into the variant structure. u7 u9 |8 e! S1 Q* W2 l7 u1 s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; u8 G+ o! N9 P- i$ p
VariantInit(&requestVariant[0]);
- b# M/ v& I; d# I5 d7 K6 ` requestVariant[0].vt = VT_BSTR;
2 k% _; G& f( N( ^ requestVariant[0].bstrVal = itemStr;: A: }* @& Y+ l9 `% z8 f
2 p3 D3 W4 J0 Z+ z! d" G, w7 x topicStr = SysAllocString((WCHAR *) L"system");
' b8 i7 m$ Z, J- b VariantInit(&requestVariant[1]);
$ D& W! A5 b: {" e# [ requestVariant[1].vt = VT_BSTR;
/ A+ z7 ?) W! [: ^+ @' M8 Q requestVariant[1].bstrVal = topicStr;3 ], k' W! u* e6 I8 Y# y; L. e+ }# x
5 i9 F" j8 b+ p: o4 N// Set the DISPPARAMS structure that holds the variant.$ w ^; d! W( l# h
" K" N( S% a0 \. I% V8 R dp2.rgvarg = requestVariant;
7 D! G( o" \' }! k! H3 @! C dp2.cArgs = 2;
) H; e) A7 X- i { dp2.rgdispidNamedArgs = NULL;
- i1 j& u% V' ?% q0 k2 s dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;( t0 T" a; k. X w
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// Call IDispatch::Invoke()
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! ]& F; u+ V" a% N9 r hr = m_pDisp->Invoke(
$ G, g6 Z+ G- K! b requestID,
# z. _- Q' h, U$ o" P0 v IID_NULL,
! ^: }' B/ w7 N/ |$ H LOCALE_SYSTEM_DEFAULT,
: G, s4 o5 w4 |- Q; L4 A* t DISPATCH_METHOD,
* I) ` j3 X8 @1 V2 Q &dp2,+ ]7 K6 F+ k! O+ w! ~6 {
&var,
- f0 y4 Z4 l7 n/ _; Z &ei,
% c9 M& P! _6 U, S2 _# ? &uiErr);3 ~- [% h( _, }) W/ s; b' I- q5 _, @
5 [! b$ @8 f4 d1 d SysFreeString(topicStr);
' B" q2 @) ?! z+ `4 U$ b SysFreeString(itemStr);- b9 m% \' J( G7 H3 O+ u" `: I* A
请问该程序是获得extend里面的哪个值?
5 q/ k, \1 v+ \. O+ i$ e$ V; f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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