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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 S' ^$ x( }* VName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
4 Z/ D; |0 U9 U! E IID_NULL, // reserved
V2 Z7 R9 _0 V' P7 y0 i ] &Name, // Array of names to get IDs for
: x2 m$ V5 }7 Y8 h7 @1 { 1, // # of names in the array
- v1 k4 m+ t5 F6 R8 @& g8 }; O: N LOCALE_SYSTEM_DEFAULT, // System locale
/ @' n& l9 _" o" \) ?8 ~ &pokeID); // Array of IDs to fill on output
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if (hr)6 d: r. v. |" j
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MessageBox ("Get Poke Unsuccessful");: M$ N- O- g* d$ S# u8 _& g8 v9 K$ @
return;
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/**************************传递数据给extend**************************************/# Y. E2 p( s* ` f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* v) C+ x3 y7 `: \7 x
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valueStr = SysAllocString((WCHAR *) L"1232");
4 O: @5 u2 r( S VariantInit(&pokeVariant[0]); 7 |1 e' x) ~+ S7 b+ q! C3 h( m# E$ q
pokeVariant[0].vt = VT_BSTR;$ p! a2 \" u; O) \8 [* D- l. C- ?' |
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! R7 W4 q7 [# L3 s VariantInit(&pokeVariant[1]); 7 ]4 l8 N2 ~( p9 X- z: l
pokeVariant[1].vt = VT_BSTR;" K$ [6 {0 D9 k C$ m- ~+ ]6 A
pokeVariant[1].bstrVal = itemStr;
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1 O/ G$ b6 F; ?& h/ o topicStr = SysAllocString((WCHAR *) L"system");
) n, G2 z' [( m t- |4 J VariantInit(&pokeVariant[2]); - N% W9 u" l. H9 F/ u
pokeVariant[2].vt = VT_BSTR;& P: X: Y3 A4 W: M+ S; P @
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.8 C& T1 [$ w8 }2 K
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dp.rgvarg = pokeVariant;' \: M' ] \ i; T- R
dp.cArgs = 3;& }; L; S3 ~; U6 z K
dp.rgdispidNamedArgs = NULL;& V2 {7 Y/ a3 u* j9 @
dp.cNamedArgs = 0;. z) ]8 Z7 y7 l& v C% G: S
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
# @; f1 S" G: m+ o" S/ ]; C) |4 E pokeID,. y" |- S T7 H, m5 ^5 t+ F. }
IID_NULL,9 Y4 D7 c3 _' a
LOCALE_SYSTEM_DEFAULT,
5 Q$ u `% w0 Y0 J. z DISPATCH_METHOD,; C9 T3 t3 i& V) |' z6 \0 }
&dp,) I4 Y# u4 t, D a, _# E
NULL,
6 S$ L# R; ^6 t, X &ei,
, A; O9 f( H0 [& | &uiErr);5 U0 e3 @0 R: @ k/ K e/ w
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SysFreeString(topicStr);
1 {9 E* p1 K/ Y. L( [% K. v/ q( a& K SysFreeString(itemStr);
5 m6 ?- L, O2 @* c" D# c/ s SysFreeString(valueStr);
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9 N7 C) ]2 f' u8 D% A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???
- e5 w& U% F$ w9 s8 K" m) p! h$ R; W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????8 u. y3 W6 A" N. O
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2.这是request的程序
9 _; i- P" m3 e! a/ ^2 X, I8 n// Request a value from Extend) t5 K# o! e, Y9 G( F
//2 u; K4 e- M& z2 W( P) u. S9 ?
// Initialize the variant that will hold the BSTR. Set the variant's; F* O- p! V6 c5 I" s4 {' K9 i$ T
// type flag to indicate the fact that this variant holds a BSTR. Place the# H2 u0 t% p) k, i
// BSTR into the variant structure.
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" c0 y" @3 v8 P4 W& G% J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; p4 M6 G) y0 `( F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
7 Q1 e4 H2 g6 Z0 V- j VariantInit(&requestVariant[0]); 4 Q2 K/ p8 k y g5 n8 R9 m
requestVariant[0].vt = VT_BSTR;
% m2 ^7 u/ t" Y% _. E c requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");6 n/ t$ E' `) d. ?
VariantInit(&requestVariant[1]);
3 e0 I5 t% g( T9 y requestVariant[1].vt = VT_BSTR;3 t4 X' O, s$ J5 F
requestVariant[1].bstrVal = topicStr;
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0 \# ?8 F6 Y+ n6 Q# i% ?; U// Set the DISPPARAMS structure that holds the variant.1 \& _' v0 a1 O9 W! K% w0 A
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dp2.rgvarg = requestVariant;
# q" P* g9 e4 H$ S" f dp2.cArgs = 2;5 z8 v6 p6 ?5 b: W, f8 E v* i
dp2.rgdispidNamedArgs = NULL;2 t$ J% f; s* l
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;9 s9 P" g1 r& w
! `" O2 E; Z' S& L2 ?: n' S% {// Call IDispatch::Invoke()/ I7 `; a% @( i9 F: Q
' F% F" H! Q8 y# N8 K: q hr = m_pDisp->Invoke(
9 K9 T) b" R6 c/ y4 o# k. d requestID,* X5 i+ m4 x p/ e; N) b, z: G
IID_NULL,( _! U. b( X8 C% Z2 f
LOCALE_SYSTEM_DEFAULT,
\( T; Y, c6 q! H4 @0 M/ [ DISPATCH_METHOD,
/ B2 P$ `" i( O &dp2,
( q# ]: y0 A |6 W &var,
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&uiErr);: p ]& H0 J! X: b, ?
1 b# Z0 n9 Z' J6 P8 h. i$ k# u SysFreeString(topicStr);. [3 k( n! u, Z
SysFreeString(itemStr);" _2 \6 C E2 S' i" M+ P1 F" \; }
请问该程序是获得extend里面的哪个值?
" r( @* t, _2 |$ ?. j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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