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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:0 J/ \$ D2 ~5 g" u
Name = (WCHAR *) L"Poke";+ H6 ?. B+ a% I$ X$ e) ~4 P5 C1 @
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hr = m_pDisp->GetIDsOfNames ( @$ O3 Q9 _! |9 z
IID_NULL, // reserved
! \7 c* B' K8 c$ G; n0 ?0 @; S3 x/ X* C D &Name, // Array of names to get IDs for
( m' L' E7 Z; _: ~8 x7 y% m 1, // # of names in the array$ P$ D) f6 s, Y9 l0 a1 O7 X& F
LOCALE_SYSTEM_DEFAULT, // System locale" V! T G/ I: }! i- _# x0 v7 V" q
&pokeID); // Array of IDs to fill on output
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' r$ N9 T E( H7 k2 L, `6 W8 {. U: L if (hr)
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MessageBox ("Get Poke Unsuccessful");9 B) J- ]! w9 z$ r( [ c. N
return;
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0 e! n | u# d( Y- ]/**************************传递数据给extend**************************************/- G7 N1 f6 R- a; [. v! L6 ]+ F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" {- D1 m4 b. q$ E5 h$ j
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valueStr = SysAllocString((WCHAR *) L"1232");. o$ g3 Z1 t. X' b/ [
VariantInit(&pokeVariant[0]);
& n6 e6 n! f* N, o4 y: {5 | pokeVariant[0].vt = VT_BSTR;
% n! W% z+ ?7 C* | pokeVariant[0].bstrVal = valueStr;5 e) Q/ X8 s: k( r
/ {0 `6 J0 k2 R' C1 I# W. |: ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" V" f& P# w) b5 h; V/ R' u' f VariantInit(&pokeVariant[1]); % O( a1 V. P* W8 m
pokeVariant[1].vt = VT_BSTR;
, I: W7 t# g* [% u: y, R pokeVariant[1].bstrVal = itemStr; `* y6 w# n2 r0 u8 K0 ]; o- B ]
6 Z6 S1 w3 b$ F& e2 F' } topicStr = SysAllocString((WCHAR *) L"system");
* M! a/ W i/ T, B; u- v VariantInit(&pokeVariant[2]);
5 G8 O6 I/ I! k* i5 q8 C0 I pokeVariant[2].vt = VT_BSTR;; }+ P% c1 V7 K
pokeVariant[2].bstrVal = topicStr;
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0 \4 f X! y. o* D2 T0 \6 B1 O// Set the DISPPARAMS structure that holds the variant.$ ~" y" I& m& J- K
, J' P, j% R( S; r6 t- h dp.rgvarg = pokeVariant;
+ Z0 F% J: Z, ~ dp.cArgs = 3;
& j! E3 u' a& C) W dp.rgdispidNamedArgs = NULL;
, { o& I$ ]$ @& x! Z dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
$ o# L/ v& m. D9 V" f6 I3 G/ \ pokeID,: G- r$ y/ j. C
IID_NULL,# M% y9 q5 `; w6 N- c$ ~
LOCALE_SYSTEM_DEFAULT,
4 Z4 W9 a6 C& G1 Q+ U" l5 M DISPATCH_METHOD,
; t: p% r: b/ M &dp,. I0 m9 T* h" g* I' e2 ^8 _
NULL,
% `2 s+ g# a8 J3 \. y* A( a; g &ei,4 N" v+ C8 `6 Q: \: E$ H
&uiErr);
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SysFreeString(topicStr);
. B {$ L2 L9 t8 {' Y, H2 N4 w SysFreeString(itemStr);
, u3 V! l: e$ R0 H0 @- \& | 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???
1 ~3 r1 X7 U4 [+ y, M2 p9 k) A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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4 F$ y0 T% t. M2.这是request的程序/ ]4 S# @: C8 Y; O! R. c
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's X& f$ o5 j' u3 V8 N I1 X1 E
// type flag to indicate the fact that this variant holds a BSTR. Place the# O$ y! O% k$ \6 k- J6 n* K
// BSTR into the variant structure.' `8 @: f# E) u8 L1 Q4 r2 q( 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");
$ _! U8 u. O. x VariantInit(&requestVariant[0]); ' W, E& E. w9 i" Z4 R" t
requestVariant[0].vt = VT_BSTR;& D9 U* F$ M: C& ?) q P$ H
requestVariant[0].bstrVal = itemStr;7 @% m& W9 f. R* z1 A: K: b
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topicStr = SysAllocString((WCHAR *) L"system");
1 L( D" _8 b9 w$ S; M# a$ }4 a% _ VariantInit(&requestVariant[1]); , w: b* ~/ k) w4 Q
requestVariant[1].vt = VT_BSTR;
/ \! ?; V; R# @% Y6 a/ P requestVariant[1].bstrVal = topicStr;
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3 D3 e% l, e" y// Set the DISPPARAMS structure that holds the variant. H0 z: T( _7 ^- w
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dp2.rgvarg = requestVariant;* Q$ Q3 Z& e! T8 l8 F0 C1 W
dp2.cArgs = 2;& X" h! J. l7 B
dp2.rgdispidNamedArgs = NULL;
/ Z, n" B/ p3 H% C: c dp2.cNamedArgs = 0;
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$ v) |% n) l+ i% I! o: B var.vt = VT_EMPTY;
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! U W) S4 ]. L% c8 g" Q// Call IDispatch::Invoke()) j) \7 J0 N# _9 U' j) r) k9 f3 c2 K# S
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hr = m_pDisp->Invoke( C0 V" T; U2 r. g
requestID,; {( L: ?* s& U5 [ ^
IID_NULL,
7 ~( S- ?, u, o4 R- L LOCALE_SYSTEM_DEFAULT,5 `7 m" c3 F$ q+ w/ s3 R! [
DISPATCH_METHOD,
' j2 ]- O3 p2 B2 Z &dp2,/ o0 X1 B* g2 z `% Q7 F, P
&var,; U& r5 b: j! B$ \
&ei,& u i# u/ L3 Y6 I8 F# }5 s( E
&uiErr);
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SysFreeString(topicStr); P v6 Q- T" R. [) m! Q
SysFreeString(itemStr); I: W+ I8 u% N
请问该程序是获得extend里面的哪个值?
; P# c+ |4 c7 o/ V0 X8 l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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