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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:1 f& `+ v! J8 e* y1 s& C% `" p Y' r5 Z
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (; G2 {* K% `) {. y: M' R
IID_NULL, // reserved
) r1 C. ~- P5 w. ?7 y &Name, // Array of names to get IDs for0 G0 q4 ~+ [% g; n; A
1, // # of names in the array
" \0 k3 \) p5 n$ p% u LOCALE_SYSTEM_DEFAULT, // System locale- |+ F, [/ v# H2 o
&pokeID); // Array of IDs to fill on output
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if (hr)
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) M& P- @8 G9 H8 f1 S/ } MessageBox ("Get Poke Unsuccessful");
8 J& O- r$ S' i9 g/ ^ return;
7 @4 b" q+ M7 q: h& h }
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/**************************传递数据给extend**************************************/. e+ o8 o9 H, \) F
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);( _( @( `( M# w
8 M2 O' i2 @. {
valueStr = SysAllocString((WCHAR *) L"1232");
9 n$ U6 B# y- D) Q% i* W VariantInit(&pokeVariant[0]); # ~: ?' z( m) v3 ^
pokeVariant[0].vt = VT_BSTR;' P5 _5 ^, z# Z5 l
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 p& K4 |& e$ t2 s8 b/ f" r
VariantInit(&pokeVariant[1]); # P. A3 |# h7 U8 o
pokeVariant[1].vt = VT_BSTR;
" Q' V w9 @ K8 \) e pokeVariant[1].bstrVal = itemStr;1 T. F w/ b+ `6 Q4 g! q9 z
) z3 ?, P5 b4 H topicStr = SysAllocString((WCHAR *) L"system");
. u& ?) C6 L! `1 Q VariantInit(&pokeVariant[2]);
, a6 n( _# [- } pokeVariant[2].vt = VT_BSTR;4 n) ~& u9 @( M, b- S
pokeVariant[2].bstrVal = topicStr;8 @# C7 \2 S. G t# a/ | H9 T5 t
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// Set the DISPPARAMS structure that holds the variant.
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! |! R3 T2 P2 b dp.rgvarg = pokeVariant;% o: }: G& I2 w6 M8 n% w7 ~
dp.cArgs = 3;$ [" d5 A) l( z5 F% f$ i
dp.rgdispidNamedArgs = NULL;+ l9 F; g) Q) c# P- n+ v2 X- X
dp.cNamedArgs = 0;8 P( o3 [: x6 L* X1 d2 |, f
+ {" ~1 ^/ {6 A1 z! z% O+ }1 _// Call IDispatch::Invoke()
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1 [, A) f9 X3 B, D+ C hr = m_pDisp->Invoke( ]( S& b3 x; }" _2 M0 z+ m
pokeID,
; W4 s( V. q" A7 L d IID_NULL,
, j. F2 N- d' h LOCALE_SYSTEM_DEFAULT,- c9 D$ Y9 P9 F3 F. ~( Q' e4 D
DISPATCH_METHOD,
" V |4 x! `. _. c( j &dp,
! U/ J2 F! s3 X% b" Y NULL,, ]. k' H! M. [
&ei,
3 O; a7 @: S: q9 B* O# F( S6 P &uiErr);
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SysFreeString(topicStr);
% Z' g8 z% S/ N" s4 ]9 K7 I, x* r SysFreeString(itemStr);
) |6 b" U. f: x& E- F$ ] SysFreeString(valueStr);0 X" ~- i6 l# }1 K( _; Z
9 Z8 l% O6 [* U! C' L
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???
: v2 ^) g7 c8 j9 w# P5 w2 |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????6 Y2 ?1 t& j# o' w
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2.这是request的程序
/ U0 x& b! [/ M5 N1 B8 Q) }- o! u// Request a value from Extend: {" v8 h7 J- f
//
1 I O2 {, a) T( U- I" D H+ ~// Initialize the variant that will hold the BSTR. Set the variant's
$ ^( e6 Y1 z8 L# d0 f; F// type flag to indicate the fact that this variant holds a BSTR. Place the0 @" j4 U* _5 C3 I) c! H/ R7 D. L
// BSTR into the variant structure.
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; z9 z" ?' ]5 \ y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ s- J! W" C" l
VariantInit(&requestVariant[0]); 1 t- }( l; t% G
requestVariant[0].vt = VT_BSTR;
5 Q0 g; n/ j' L requestVariant[0].bstrVal = itemStr;0 P4 {: ]/ ? o: V4 V4 @) r
3 u5 ~3 q; v6 X topicStr = SysAllocString((WCHAR *) L"system");( A/ v& ~6 s2 |6 h$ O
VariantInit(&requestVariant[1]);
; [. J- L& i8 }& h7 r' i requestVariant[1].vt = VT_BSTR;' T( R5 b% e' d& a4 k7 w! ^ m0 H7 r
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;8 T% k* a9 _) b4 c4 M/ x* i0 g2 v. k
dp2.cArgs = 2;
* ~- @. j A$ ?3 E" l/ b dp2.rgdispidNamedArgs = NULL;1 J9 V, b2 B, v9 Y- Q% ~! Z' Z
dp2.cNamedArgs = 0;& i. J/ ^* R+ r
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var.vt = VT_EMPTY;) M. p/ o5 e# G! p% T& K
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// Call IDispatch::Invoke()
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, U$ I8 Z/ U4 _, d; @" ^ hr = m_pDisp->Invoke(
`9 E/ S: G2 { M2 { requestID,$ y. ]4 S7 T0 i( e+ Y
IID_NULL,
0 \) p% w* Z4 v# l6 | LOCALE_SYSTEM_DEFAULT,
1 W5 Y/ z. a7 u; A0 W DISPATCH_METHOD,
3 O5 g* f Y2 U" T7 ^1 I! Y5 f( k# U &dp2,
& s) z# A7 Y, p, ` &var,
! b# d- M8 r: q B+ T& I &ei,
W9 ]1 T8 t; h/ r+ G0 {- T &uiErr);) q# Q9 y. G% M1 V9 e) D2 _5 n9 a# o
& y( u6 a% L e7 q' g SysFreeString(topicStr);
+ `+ o9 X' d( d: T; u SysFreeString(itemStr);6 H2 }. i7 V& G- O! {; H8 G- d* o
请问该程序是获得extend里面的哪个值?% F6 g" z3 A0 [! \" K- ]/ z/ w
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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