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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 _( R8 u0 m2 ^6 s. p S6 D
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
# Y" }- L9 V3 Z; [ IID_NULL, // reserved' o7 P. Q2 e8 E; ` G: s
&Name, // Array of names to get IDs for
7 a. j; e! n5 t. S! c$ A/ i' n0 Q% Y. ` 1, // # of names in the array
2 z3 \5 u% W5 X+ K9 G5 L LOCALE_SYSTEM_DEFAULT, // System locale
' b/ k: t& r0 P: l &pokeID); // Array of IDs to fill on output
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if (hr)9 p; E# ]0 G; t& e3 o' ?7 {
{
& C" ~0 u+ A- m! A MessageBox ("Get Poke Unsuccessful");
3 r# f9 \% Z; N return;# S( n% f% V! A; ]- H
}3 ^8 O0 D9 B+ N) y& Z
0 r; N: E" \8 M1 m/**************************传递数据给extend**************************************/
I/ M3 m! m2 O/ D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 l* N$ w7 D _/ b" Z
+ b* [+ C2 @3 A t$ c3 c$ n9 g valueStr = SysAllocString((WCHAR *) L"1232");8 ?5 y/ L$ a; G+ l8 x* J; ]
VariantInit(&pokeVariant[0]);
2 C4 A8 C$ D5 x2 C4 o pokeVariant[0].vt = VT_BSTR;
" h6 ]0 d/ t" f/ \- H0 V pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! `) P8 t U) P1 t P0 v# u
VariantInit(&pokeVariant[1]);
% t, p& V: F. k! A+ ~ pokeVariant[1].vt = VT_BSTR;
x3 {/ j1 A& m2 s8 t3 c9 c$ r/ D pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");9 C9 k3 ]7 g% G0 `' @- X- A' f0 M
VariantInit(&pokeVariant[2]);
# [9 l I% }5 v! Z pokeVariant[2].vt = VT_BSTR;
1 D) F- M6 `+ Y7 Z4 _) \" S1 b pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant. C6 S, }- d2 Z& s& M1 N
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dp.rgvarg = pokeVariant;% m2 h/ w% U3 j& G7 B5 r
dp.cArgs = 3;' X# e3 J, G/ Z( ]( k- b
dp.rgdispidNamedArgs = NULL;- _- D8 _: A, f1 |
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
" [( e7 J/ A8 P) n: a9 L pokeID,% n$ b# ?( {1 f$ N8 D ?9 p
IID_NULL,8 Z! \" z; ]8 h5 V& @
LOCALE_SYSTEM_DEFAULT,
' a) X9 w" @2 `& s! h2 _ DISPATCH_METHOD,1 t) k/ a1 i- n/ @" ~
&dp,) f. A9 Q: R# }3 p" G
NULL,
3 H1 A& O6 n* d) V! E6 ~ &ei,1 `+ ^0 ~; e, K- h
&uiErr);& ?7 p* v! K% W$ b
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SysFreeString(topicStr);
; X! }, d, A& Z& t SysFreeString(itemStr);
. i9 D6 b5 M" x SysFreeString(valueStr);
/ K' Z, j# m/ _ K+ N J0 x; C. A4 x& N3 U- X
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???2 V: Z4 {* `8 k! t4 m, g# ~
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????2 h0 g' D; o) H' O: Q2 P- U
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+ E" `/ p2 A: ]2.这是request的程序
0 B, ]. {( V* w% V1 o4 I// Request a value from Extend
0 D) E* C& D& u! Y2 f9 Y; i// V8 a, M. Z/ v( U
// Initialize the variant that will hold the BSTR. Set the variant's: e6 l H2 A7 v* \4 V0 E
// type flag to indicate the fact that this variant holds a BSTR. Place the7 L. U2 l3 w0 ^2 f2 O/ l
// BSTR into the variant structure.6 B& a; U& R0 P: u% c; J
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) V4 F3 z ~3 F" h" g& P VariantInit(&requestVariant[0]); & `, ^2 J4 r! U8 C: \9 e0 X. P
requestVariant[0].vt = VT_BSTR;
+ _( _' F% t: L requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");! d7 F: M/ d- y' ~" Z
VariantInit(&requestVariant[1]); 9 ]* c m n* t( S& r
requestVariant[1].vt = VT_BSTR;4 P0 q/ q0 I6 p0 Z0 \' N
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.9 d) p5 k7 _2 D8 \; G7 _. m
; Z+ P |2 R8 l1 L& g3 j5 B dp2.rgvarg = requestVariant;
& b+ [0 ~) k. `2 [/ ]' E% R dp2.cArgs = 2;
' p7 G5 a$ t- o1 z7 F' d D/ B dp2.rgdispidNamedArgs = NULL;
4 R, w4 L' R- L }! U+ ? dp2.cNamedArgs = 0; r8 g6 \4 |/ g/ S( ^
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var.vt = VT_EMPTY;! m7 u4 D% H* |
6 P8 P2 u1 @( y) U# y! L: p4 Y/ P// Call IDispatch::Invoke()& g2 J1 t/ J7 N% L- w
l! |3 R: E% a hr = m_pDisp->Invoke(- p3 C+ k0 p2 H' Y
requestID,+ D; j: e: Y) H- b. P$ J ?) P
IID_NULL,$ b% C0 Z7 i& r! i0 e( o
LOCALE_SYSTEM_DEFAULT,& D. f. A( g8 Y2 {4 x( u
DISPATCH_METHOD,3 c" M! K1 N5 v* ]* `/ q
&dp2,+ f8 ~. \0 j. ]5 q0 D7 t
&var,& t }3 E0 P& s; h# A1 `, u
&ei,; `6 I+ T7 m: m' m$ l1 F$ W6 Y
&uiErr);
$ Z6 P7 d0 r9 u: l z
% k" {- A$ W) J- R" S6 [ SysFreeString(topicStr);
9 w8 `7 @4 N( ~8 ^! w) [ SysFreeString(itemStr);0 _ p! e8 q$ t8 e. V. P" @8 a
请问该程序是获得extend里面的哪个值?$ B- X! u, }) G& P, S
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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