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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:
6 s1 ~5 G9 j) i' yName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (; \2 o2 s7 u, g/ w3 t2 g3 L ^
IID_NULL, // reserved
2 N+ _, w `. `. ]6 [" b &Name, // Array of names to get IDs for
4 B+ \! a3 s B/ w1 U 1, // # of names in the array' @3 v3 h8 J; C2 H' z, ]
LOCALE_SYSTEM_DEFAULT, // System locale
2 R- t- i1 K# ^+ _0 h &pokeID); // Array of IDs to fill on output1 C6 x5 d# q& K) G: d6 k$ N
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if (hr)" p- X. P8 K# E d
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MessageBox ("Get Poke Unsuccessful");5 q+ j9 A7 ~4 X9 W6 h/ r& q6 A
return;7 F6 ^* Q# q* F$ \8 K( Q+ E% B
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u& [, l( \. \$ u s8 f/**************************传递数据给extend**************************************/
$ k, z9 `) O* y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");7 s1 S* l) @7 d8 d/ Y' q
VariantInit(&pokeVariant[0]);
1 m( x* y# o u: W. l, N pokeVariant[0].vt = VT_BSTR;2 g9 V" v! x* K
pokeVariant[0].bstrVal = valueStr;/ R7 C1 V @: @3 Q* i, m
$ W/ G; L! J; t5 B0 u( X. w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: J; j$ O$ f: L! m- t3 m
VariantInit(&pokeVariant[1]);
4 s( w# o2 Z' B) r! a pokeVariant[1].vt = VT_BSTR;; e# G8 X0 x% y R6 F
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");. d! q3 t# X0 U! `8 w
VariantInit(&pokeVariant[2]); 3 G7 o1 u& q6 Q1 z9 g
pokeVariant[2].vt = VT_BSTR;
8 E' L2 a3 ]$ O& c9 }$ l, E1 b. m pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
5 m! l! L: X& Q& _5 l dp.cArgs = 3;" L6 x, U2 Z2 r2 _
dp.rgdispidNamedArgs = NULL;
* g3 N2 w* A. q; G, O dp.cNamedArgs = 0;
c" `. K9 {" t( `
! U0 n& H, J$ J# f" Z7 [ n7 m9 l// Call IDispatch::Invoke()4 j7 \ u3 J& x: ]* y [ i
5 Q7 g3 [4 V2 F1 p6 B$ j T hr = m_pDisp->Invoke($ `/ c5 T$ M/ F# t' E. h. ]
pokeID,
! c7 {9 {4 J- e% K$ L) d IID_NULL," D% Z _* c, M
LOCALE_SYSTEM_DEFAULT,
; D- H$ B9 _+ C$ F# r DISPATCH_METHOD,
2 c" ~. v3 N- \. w u6 k$ B. z* r &dp,5 X9 ?9 ^* S$ o* p8 C
NULL,
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&uiErr); ?+ `$ P. `( M/ n# H' K$ e6 |
9 V& P, X9 ^; R. t8 ?, h6 s- ~ SysFreeString(topicStr);; G. k S1 Q, O3 u& @
SysFreeString(itemStr);7 v) w, q* T( f3 d* ]
SysFreeString(valueStr); d, e& }( o' q1 G8 A! p
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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???+ x8 ~9 n. {: z' ]
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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$ x) p$ U1 z8 }5 p A( B2.这是request的程序9 V0 b" _3 }; Z0 T# y u0 C
// Request a value from Extend
# |: [" p! Y* d" [ s" Q& o" j//
' O6 ?# W$ L0 U/ K# t6 U, ^// Initialize the variant that will hold the BSTR. Set the variant's
- O; M1 Z. t3 j% Z/ n) K// type flag to indicate the fact that this variant holds a BSTR. Place the- w6 f1 ]7 F! w/ i
// BSTR into the variant structure.0 v% A9 [9 J; S- ^1 d4 Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) w7 c @! `0 @$ } J2 U2 [
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
5 Z/ H* K2 X/ b9 A4 ^; V; ~% C# z VariantInit(&requestVariant[0]); . ^/ n( ^6 b% o
requestVariant[0].vt = VT_BSTR;
3 ^+ D2 G) [5 g" H8 h requestVariant[0].bstrVal = itemStr;! Y. }3 g4 M7 r& e
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topicStr = SysAllocString((WCHAR *) L"system");+ b, {& Y1 ?, U9 |' {
VariantInit(&requestVariant[1]);
$ w, y' ]) Z& x7 }4 a" }1 U requestVariant[1].vt = VT_BSTR;
. ^9 g7 O2 @: H' H1 x' O requestVariant[1].bstrVal = topicStr;8 r$ c! `; W( V& R1 C3 v
' i( a4 J4 r' G// Set the DISPPARAMS structure that holds the variant.) s* o' F9 r% n4 v u. O# ]1 u
+ ?' Z! F! \8 F3 F& Y" q dp2.rgvarg = requestVariant; n9 M5 {9 _5 e, p/ H4 q
dp2.cArgs = 2;
- S( t+ P4 ]* @7 B, [8 H dp2.rgdispidNamedArgs = NULL;+ {! n0 v5 |) b" b' n
dp2.cNamedArgs = 0;7 V4 M/ a0 n* ?) z3 X4 N
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var.vt = VT_EMPTY;; m/ i0 p- W( T2 W) B
3 q0 |- A! m) D) e, \// Call IDispatch::Invoke()
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: f. z/ O! b2 e2 S# m hr = m_pDisp->Invoke(
7 u3 i) I1 l4 _% E; k/ [ requestID,
+ B1 `- p. C0 \$ Q0 n7 ?# g IID_NULL,
4 T3 v3 N$ c7 R4 t LOCALE_SYSTEM_DEFAULT,
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&dp2,
" ^' |: _! M& R. x Q &var,% g) f5 l* b7 ?6 V' a H4 g
&ei,
9 W8 S+ y' E$ o/ p! M, ] &uiErr); @1 n; \1 V' E9 c; ?
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SysFreeString(topicStr);
( F8 I4 ^/ w5 C) w- V; C5 w SysFreeString(itemStr);
+ G" V E, H+ @+ B请问该程序是获得extend里面的哪个值?- `9 J" Q' F; f0 _' 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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