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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:
: ~ `& O1 }8 C" |3 p; t# MName = (WCHAR *) L"Poke";
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2 m- c/ x: m( g8 G& L f: e hr = m_pDisp->GetIDsOfNames (# e- X9 ]. |4 u/ W0 ~' k( k
IID_NULL, // reserved
# {$ _& J- }' s- w &Name, // Array of names to get IDs for
0 f! V" d- F+ u. L3 }3 Q 1, // # of names in the array/ {3 c3 Q- L8 n @& o& l- E
LOCALE_SYSTEM_DEFAULT, // System locale
* M6 U2 p" p+ @7 {* _3 p1 c &pokeID); // Array of IDs to fill on output1 w; J) S/ W3 `" a" p
]3 d0 z4 v: l J; V) ?6 { if (hr)% A1 q+ v2 h* k- T/ G
{
3 j {8 V3 M; Z: ]: l. e$ v MessageBox ("Get Poke Unsuccessful");
3 v9 F1 w' w# ]5 m9 Y return;6 e% z1 f5 k/ {. S1 ^
}
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G7 i0 I0 W* m2 ^/**************************传递数据给extend**************************************/% `" E3 J& O' z; ^6 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
# o% _8 d: ]* P& a9 l; h
+ p0 V7 K3 Z. B/ z: C valueStr = SysAllocString((WCHAR *) L"1232");6 ^7 i2 f+ m5 d+ z
VariantInit(&pokeVariant[0]); 1 I9 ?4 r% i+ o6 l! r9 o- ?
pokeVariant[0].vt = VT_BSTR;
) z5 W: G; J- m pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) y/ Y3 o7 J9 S; ~+ i$ C
VariantInit(&pokeVariant[1]);
9 M% g& ]/ G* E6 g" ~ e6 X/ I pokeVariant[1].vt = VT_BSTR;
& ]2 L9 ~4 w2 y+ Y! d9 { pokeVariant[1].bstrVal = itemStr;, m3 |! M7 ?$ a6 q! E' D; s
d2 I1 a1 p( \2 D H. [ topicStr = SysAllocString((WCHAR *) L"system");8 e: Z8 `! t# g9 ~4 J
VariantInit(&pokeVariant[2]);
" e0 ]. y7 i& {. z& V4 K pokeVariant[2].vt = VT_BSTR;
. u% A% U- O* t" Q& |: f pokeVariant[2].bstrVal = topicStr;* T# d% R% U& J* l
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// Set the DISPPARAMS structure that holds the variant.: e! D) y: i4 ?$ U O: K
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dp.rgvarg = pokeVariant;$ K% ~! ^( v! P0 G! C, y) U6 L
dp.cArgs = 3;0 n+ O) {( y4 F9 u1 h
dp.rgdispidNamedArgs = NULL;8 |5 D6 c. |9 k6 c) s
dp.cNamedArgs = 0;6 b8 w; N0 I) B* I8 ^, s
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// Call IDispatch::Invoke()( y4 S* L* |1 L/ c+ n
; e4 A7 O" ? c$ N/ {/ l0 M% ]: U hr = m_pDisp->Invoke(
0 e! R/ H/ ~1 B% d8 Q pokeID,
n$ ]/ G7 g% Z) d4 w+ j IID_NULL,+ D1 Y p8 U( }. w$ \
LOCALE_SYSTEM_DEFAULT,. Q1 W) [* A8 V/ x& D6 ]: H2 l8 f
DISPATCH_METHOD,, b3 N, s4 l6 m/ }
&dp,
# o# w, E: F' L7 k NULL,( a1 p4 y& K0 c
&ei,: [* y9 U* G) O& ^, v1 e* l
&uiErr);. d$ |; h) i+ C5 B1 i) ]( ]/ ]
+ e+ ]2 l/ o+ R R& f9 ~5 t
SysFreeString(topicStr);% ?- K4 i2 Z |0 H: r
SysFreeString(itemStr);
% i$ `/ x- W3 @9 |4 ? SysFreeString(valueStr);
% c; k" {: r% K* K! Q6 J' D& l+ d" a
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???
" D% X) v1 j& Z4 B9 Y8 @9 }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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, [& @& R9 r% y* M0 r- P+ N
2.这是request的程序: v( U. ]5 H r' Y1 [0 F/ @* C7 L
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's1 U# u- B' ?, ]
// type flag to indicate the fact that this variant holds a BSTR. Place the
$ Z. @9 U* p; `9 R& \$ {/ a// BSTR into the variant structure.
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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 d5 k+ X8 m ` k) M VariantInit(&requestVariant[0]);
- b6 ]$ g4 H+ s3 S( A- J requestVariant[0].vt = VT_BSTR;
- d, [1 H/ X0 v t. n requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
8 X" E$ }0 b" S VariantInit(&requestVariant[1]); $ {0 J g9 }! b+ Y
requestVariant[1].vt = VT_BSTR;
5 v. M9 W3 n6 d+ t requestVariant[1].bstrVal = topicStr;3 F" r" a' a) h. u: z; e
5 ^: u% H/ `% _// Set the DISPPARAMS structure that holds the variant.# |4 C5 I, j& e7 R5 {' W
" U) z1 Y5 {- ]$ n+ F: O: q% p/ f dp2.rgvarg = requestVariant;
+ C: s5 ]* g% V/ m( N; m$ l& U) J; ` dp2.cArgs = 2;
& X0 v2 _1 f( \6 A S dp2.rgdispidNamedArgs = NULL;. I- J& \, F, L: [. _ t
dp2.cNamedArgs = 0;+ G5 I! G3 D6 S% K; A
* Q; U) E' C9 {& Y# ^2 Z: F( \ var.vt = VT_EMPTY;
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9 h; G3 M$ C, d: P* D8 C// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
6 y6 z5 M6 {: \. }2 N; c8 G3 Z; T8 I, n requestID,
! i) V; j5 t0 ]- S* x1 O# K IID_NULL,2 H, {- x7 _3 s( ?
LOCALE_SYSTEM_DEFAULT,
) Y6 q* b. L8 l( c6 j7 N3 I- i3 W DISPATCH_METHOD,
; \8 T& j- R' Q$ ^! y &dp2,3 D* ]0 {" W, R, P8 B1 G8 f
&var,
# I" c9 F4 a- s" `5 m &ei,% P: T. q0 _! t3 ~% a
&uiErr);( i: ~/ W: t0 L* p$ V
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SysFreeString(topicStr);1 ~* f( ^3 a; O7 v
SysFreeString(itemStr);
) D J; Z$ N& S请问该程序是获得extend里面的哪个值?' b8 G! g* a6 ]* G. Y
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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