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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:- f l0 [! s- q2 C
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (1 |2 W5 B+ y( \: f0 B
IID_NULL, // reserved
- ?! {) w' k; g' B( O, S @" m* ~ &Name, // Array of names to get IDs for
7 w' l, C; E/ r7 [ 1, // # of names in the array
2 ~( J3 P- N" U ~" L( R LOCALE_SYSTEM_DEFAULT, // System locale
( K5 E% E7 J% Q x' T0 ?; { &pokeID); // Array of IDs to fill on output; D! K( T7 c: ?# n6 T5 q
2 D6 r! h; k8 ] if (hr)& Y1 [* \ s( X+ j% W" e
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MessageBox ("Get Poke Unsuccessful");
6 R& E* H! x# j7 W" J% Q7 b7 H return;* o: C6 \4 N' v1 G; ^
}
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3 \* c+ @) ]7 U6 h# r, T" b0 A- J/**************************传递数据给extend**************************************/$ A% T7 H0 C c$ B6 f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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' M6 x. S, Z4 e+ a; H4 I valueStr = SysAllocString((WCHAR *) L"1232");
F. q% A2 f, k. ?" x. ` VariantInit(&pokeVariant[0]); ! F* j7 W1 D6 Q3 y6 F7 X
pokeVariant[0].vt = VT_BSTR;
; b6 F4 P. A7 H! e- p pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* x; U+ @ b! z8 y. o* n' ` VariantInit(&pokeVariant[1]); ! _: ?" j, A5 O" x
pokeVariant[1].vt = VT_BSTR;
x; n5 |0 {7 p; J- L& I/ A pokeVariant[1].bstrVal = itemStr;- P+ k2 c1 p; B$ P
S) M; S( ^; w$ [( e1 g: Q0 ~+ s topicStr = SysAllocString((WCHAR *) L"system");0 h2 {/ k6 `! [
VariantInit(&pokeVariant[2]); 8 H( F3 ?0 e6 K/ X' H
pokeVariant[2].vt = VT_BSTR;7 W9 R$ h$ H1 y
pokeVariant[2].bstrVal = topicStr;
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$ ~. X0 p# d7 N( D! w// Set the DISPPARAMS structure that holds the variant.2 V9 B) [6 T' I. z6 ~: | U; B1 ]1 k/ Q
* v3 ]+ N) x; ^- D$ G- X5 H dp.rgvarg = pokeVariant;
% f4 k) r( `# h Z) l dp.cArgs = 3;' [: f$ Y, }3 x" h+ Y' h
dp.rgdispidNamedArgs = NULL;6 ?9 @! Q5 U. M3 A y7 H/ Q
dp.cNamedArgs = 0;
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) F( J! o% m. r8 i8 M: l+ f% w// Call IDispatch::Invoke()6 N0 l( }& H7 a" q
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hr = m_pDisp->Invoke(
. X( p" O( [& f1 r6 j. j1 m pokeID,
8 S" q, ~' c- M- v IID_NULL,$ e- B9 c' I* G2 u+ i
LOCALE_SYSTEM_DEFAULT,; Z0 y l" d Y2 m
DISPATCH_METHOD,7 r# Z$ W4 t, V& t& e& e
&dp,
5 v I+ h+ l0 K9 F) ~ NULL,' B, U9 V3 }$ t+ Y; `
&ei,
' [' u; H$ ?' O: A: T+ G% v &uiErr);
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" I$ p9 ^, A/ v, _( x3 h SysFreeString(topicStr); x8 ]/ G5 i7 w ?
SysFreeString(itemStr);
, J8 k1 n, C9 ^' V SysFreeString(valueStr);8 |2 }( w4 b8 e
$ C% U# h3 x2 V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???
4 v w. n2 I6 q. k9 f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% B* h/ z# R, q" p; S Y+ L2 c
// Request a value from Extend7 r, N8 X" [3 u" n) O
//7 S5 y9 s6 u1 C0 O0 y% t
// Initialize the variant that will hold the BSTR. Set the variant's
) ]& ~7 D% o* R' K// type flag to indicate the fact that this variant holds a BSTR. Place the. ^$ h9 w! ~# U4 B3 u0 }
// BSTR into the variant structure.. \5 }( K0 f" g* _! ^7 z# ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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- i& |. q9 [6 S' d/ Z3 r+ ~% n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! b* J" q) M( g2 v* R$ S: I
VariantInit(&requestVariant[0]);
2 S7 A0 \& }1 ~: p6 |$ v% k3 w requestVariant[0].vt = VT_BSTR;
: X' x9 x/ j3 b: g/ D1 E requestVariant[0].bstrVal = itemStr;6 k& P. ]& u/ b+ }% P, F" }
; F- g+ N& E# N topicStr = SysAllocString((WCHAR *) L"system");
* K0 x5 D* }: H- ^8 ~2 w9 H VariantInit(&requestVariant[1]);
% x' o; ]# C* `) c0 @ requestVariant[1].vt = VT_BSTR;5 ?3 M; k2 a. z2 A
requestVariant[1].bstrVal = topicStr;2 h% O# _# K/ U M2 ?% `
: S/ d! R. H. w7 V U// Set the DISPPARAMS structure that holds the variant.' A: J# U' r& p
( i4 L' p+ X7 ^3 _ dp2.rgvarg = requestVariant;$ o/ r. t9 }3 ]
dp2.cArgs = 2;* i: ~8 P& o3 s2 H% U: E
dp2.rgdispidNamedArgs = NULL;# p7 ?3 h6 |& }( \' o3 y5 K( D
dp2.cNamedArgs = 0;5 ^) ~- z+ u) t& Q% Q9 R4 z9 l: T
% U! d5 N$ k+ s1 d# F- @ var.vt = VT_EMPTY;: e8 S" a4 J) o( E$ V$ \
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// Call IDispatch::Invoke()& u4 u! A2 e) ]) W* R7 F
: ?& H1 B, D8 B6 u hr = m_pDisp->Invoke(* b0 E- d, |6 B( i+ d% Y
requestID,+ F+ ^: J' h) R0 f* i
IID_NULL,5 t9 `) ^, I _9 u3 e
LOCALE_SYSTEM_DEFAULT,
: v$ I6 K& ?- L2 a/ Z7 j } DISPATCH_METHOD,+ Y2 c* t' a& Q2 q7 S% h
&dp2,
% K+ o. d% p+ J" o3 h &var,
+ \& w& e5 r& N) Q: s( e! X &ei,0 [. N$ e( S( K! P# ?- [* `
&uiErr);
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3 Y& v* {3 U8 U8 |. P& W SysFreeString(topicStr);
& ]9 q6 g3 M: D: G6 } SysFreeString(itemStr);5 m1 [* X1 H! ^" |+ a
请问该程序是获得extend里面的哪个值?
7 } X4 y8 ^7 o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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