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:$ I3 c! }' k) o0 W
Name = (WCHAR *) L"Poke";- O) F4 c" ~) H8 t0 F/ o! n
, e* U6 \& E3 x5 R# ?3 y3 M4 P* y hr = m_pDisp->GetIDsOfNames (
9 a7 v* p- C: [! L6 k* W9 l IID_NULL, // reserved" g& A1 q- G, h. q, [# e" r U: Z
&Name, // Array of names to get IDs for a$ s, U9 ]. a: M+ i% G5 Y0 p
1, // # of names in the array
% r N( y9 I5 e4 U1 ] LOCALE_SYSTEM_DEFAULT, // System locale# M. o, y) g- x/ \$ v; z; W
&pokeID); // Array of IDs to fill on output5 }9 E4 s7 H% i% E, E
( @6 L" e# |) ?; U' B1 B, e if (hr): U: H" ? V# ]4 q
{
( v! z! m+ R' [" f2 E+ x, x+ { MessageBox ("Get Poke Unsuccessful");5 c7 g* ?* X- ~
return;
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% K0 a3 H; p2 X* M /**************************传递数据给extend**************************************/- y7 j5 o3 w5 J7 H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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5 S) T7 W& w2 _$ r, { valueStr = SysAllocString((WCHAR *) L"1232");% d# R( i2 d8 b9 r5 Q
VariantInit(&pokeVariant[0]); ( z5 h4 u! F4 ]& s6 Q9 N. y+ M
pokeVariant[0].vt = VT_BSTR;
6 `" l6 F& [# ~! E pokeVariant[0].bstrVal = valueStr;% c6 I. y/ E7 |( G$ f
# N) J/ W* g" K' w7 R2 Z' V& \( m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: _3 x5 g3 P. a6 H$ ?0 M0 \ VariantInit(&pokeVariant[1]);
3 I2 e2 ^* {& C, ~) N2 H* x+ g pokeVariant[1].vt = VT_BSTR;
% `/ N/ R: K& G pokeVariant[1].bstrVal = itemStr;7 _( O" w& Y, b# M
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topicStr = SysAllocString((WCHAR *) L"system");" F* ~, u" [5 G' ~; o
VariantInit(&pokeVariant[2]); & q7 k& Y1 J- P1 d1 K" l- J
pokeVariant[2].vt = VT_BSTR;/ M% U# J# ^% ^
pokeVariant[2].bstrVal = topicStr;8 l9 D1 g& g! i
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// Set the DISPPARAMS structure that holds the variant.
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8 ?6 r( a9 k" |& p8 s! O7 X- C1 c dp.rgvarg = pokeVariant;+ d5 K* V" b" X4 |% _: H5 m
dp.cArgs = 3;
$ O& Y) U* t3 F9 q& j3 M dp.rgdispidNamedArgs = NULL;/ U$ ~- x0 t9 d5 U, j5 [
dp.cNamedArgs = 0;0 I: [2 D2 j- Q( R0 I
) ^& z/ w, v- q; |. V0 o# i
// Call IDispatch::Invoke()& f+ {* i6 U# x5 D8 z" K! L
! K8 B b( z& u# M, R4 J7 i hr = m_pDisp->Invoke(. l( u) S x G4 Q3 _
pokeID,$ b1 a* ^+ E' j8 i+ Q6 A* ^2 P
IID_NULL,( W0 E5 m6 ?' V- i2 f9 ?1 f
LOCALE_SYSTEM_DEFAULT,
# H6 b6 G7 ~2 g: l1 i DISPATCH_METHOD,7 E& ?8 D- ?! W
&dp,
" ]; G- k4 R4 G* m0 J: `! t% g NULL,
' |! U; f' V+ j4 U8 G6 a &ei,% e- X/ _' o N, \9 r; O J
&uiErr);
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SysFreeString(topicStr);
0 z7 a% X3 r9 T8 t1 d SysFreeString(itemStr); t( ?4 ^5 U$ n3 ?* Z! ?. S! w" K- v
SysFreeString(valueStr);2 @0 c. M8 k; X6 n/ A4 g
4 v" I0 e0 k- J! V8 w 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???) V0 Y" h8 p: `7 e/ S( ?
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* \# A: y/ z" F4 m: a4 m
// Request a value from Extend
6 Q: I# q- n& P: A" B //% z. x$ P! K% p/ ?
// Initialize the variant that will hold the BSTR. Set the variant's
+ o& @$ |% H! Z4 d A4 I( A // type flag to indicate the fact that this variant holds a BSTR. Place the7 q( ~6 ]" g( u8 i
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 e3 S+ ~- I& ~1 K" E$ ^) _' E& x
6 B7 L. w3 S2 C$ o% _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: E( t2 A3 `' g5 f# r% Y! Y
VariantInit(&requestVariant[0]);
: Z ~, I, ~! e requestVariant[0].vt = VT_BSTR;2 _+ e0 Z. J2 d; n) l) S
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");; u; f5 d$ A& d2 r& ^2 I" x
VariantInit(&requestVariant[1]);
9 d8 B: ?. }- C; S9 @7 v requestVariant[1].vt = VT_BSTR;
5 a% C! M. F, l requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
( @) u+ |: j3 @/ E. p
) @! R, ?/ s- y. P dp2.rgvarg = requestVariant;; j* _, N* h. B. F5 N4 H# r
dp2.cArgs = 2;
1 m* E/ W8 x! ]& I4 x4 b2 ` dp2.rgdispidNamedArgs = NULL;0 l2 p5 l- `! M! W# Y8 O6 H
dp2.cNamedArgs = 0;% A9 O8 G- Y7 S
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var.vt = VT_EMPTY;! E$ W# u' C* K# [3 d {
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
& G4 |4 I( _: z0 p5 V6 T requestID,) @! b" u+ [# i# b4 c, A1 Q9 A
IID_NULL,
# {9 E; Q1 }! i0 {8 f5 [/ D% [ LOCALE_SYSTEM_DEFAULT,
. ^5 ^1 O" x& L6 Z/ x DISPATCH_METHOD,
* z/ W. f, K9 N5 u &dp2,
$ B. o0 q, g7 A. J& |. N/ q &var,
/ k G4 e( m9 k8 o- f &ei,
' ~% [5 c7 b- M& @" Q! @# }- d9 | &uiErr);
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SysFreeString(topicStr);
* j" a0 L& r- }% | SysFreeString(itemStr);- ^+ }0 w: h# Y
请问该程序是获得extend里面的哪个值?& q( a8 I5 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????
我来回答