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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:
7 I/ C5 x h+ ~( z- I0 iName = (WCHAR *) L"Poke";
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" d- F5 \& r6 D hr = m_pDisp->GetIDsOfNames (
3 L6 ^. {- O& ^# v6 {9 \ IID_NULL, // reserved
3 L4 w+ a- X9 x4 [6 u1 x &Name, // Array of names to get IDs for9 Y) D4 H6 M+ C! o! ]; L7 u5 @/ ^) a
1, // # of names in the array+ c1 a: [2 N4 e. X# ]$ `
LOCALE_SYSTEM_DEFAULT, // System locale
6 C$ W1 Z+ z% i8 z; ` &pokeID); // Array of IDs to fill on output5 h f- ]* N4 k2 X# ` c1 @
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if (hr)0 Q, c/ ~# L4 ]7 w7 @) d
{
) _, I+ G; b9 v1 o3 p MessageBox ("Get Poke Unsuccessful");/ t" u- ]( u6 J
return;
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/**************************传递数据给extend**************************************/
3 _" P: ]9 X( o. t+ V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 ]) }' S1 ]0 i
& S k2 J7 x) O0 U5 M M! W& w valueStr = SysAllocString((WCHAR *) L"1232");( S$ ^8 [5 F, X. k/ i$ v
VariantInit(&pokeVariant[0]); , N" ]4 L1 A3 @; z* ` U
pokeVariant[0].vt = VT_BSTR;
( H) L5 B9 C( _2 \- L! ]% K5 [ pokeVariant[0].bstrVal = valueStr;
# d1 Y: n* c I; T9 H3 X& \8 a9 }. b3 K- _8 I5 `/ q6 a$ H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! i: A$ \% q! V% a- T( ~$ K
VariantInit(&pokeVariant[1]);
* w! V9 }5 k. Q0 ~* S: z/ t* k; u pokeVariant[1].vt = VT_BSTR;2 D) x- {( M/ T/ @
pokeVariant[1].bstrVal = itemStr;7 b8 P4 i8 m" K
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topicStr = SysAllocString((WCHAR *) L"system");" ^& W) M7 m; H" h( U" l* W6 [3 A
VariantInit(&pokeVariant[2]); # c8 h/ Y0 f" I8 k; `+ ^7 t
pokeVariant[2].vt = VT_BSTR;
, o$ q' {1 h; f' k e. p6 c1 F pokeVariant[2].bstrVal = topicStr;
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# W; ~& s O# z2 `2 \' ~) N* Z L// Set the DISPPARAMS structure that holds the variant.' D' E0 B) M: f1 |
. C7 E( ?" x+ l, s5 M) s& S. Y( n dp.rgvarg = pokeVariant;9 h" K" ~. H1 w( {9 i
dp.cArgs = 3; y/ C W7 I8 e
dp.rgdispidNamedArgs = NULL;
" W7 G7 c) b7 U. h# J' X8 X* [" e dp.cNamedArgs = 0;: O2 [. U' H3 B% ~
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// Call IDispatch::Invoke()5 R; @+ I% R1 h- G7 q
% V; S w" a! y hr = m_pDisp->Invoke(/ @5 t6 P. u: {9 G
pokeID,% u' t) v% Z# v# Y3 v$ p
IID_NULL,
# U' L7 f, N; d2 I LOCALE_SYSTEM_DEFAULT,
( ]- y1 b y1 D8 U DISPATCH_METHOD,
) y( U- K+ @; i0 D &dp,8 E5 f. R! s0 D) Z+ e. x5 [
NULL,. I9 Z# `+ J8 A5 I5 p
&ei,
: b; N% e0 I: U: J &uiErr);+ M5 W7 V& [# K( g
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SysFreeString(topicStr);2 A( `8 d9 t" t, f
SysFreeString(itemStr);
~2 n" n( U* _! n0 b. Y; s SysFreeString(valueStr);- }9 h* T5 |4 ]$ H/ N
7 |6 L$ ?4 v# C0 \9 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???
3 E# N& i$ [% b: E) i8 o8 q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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( d. \) b* X( q" J7 N2.这是request的程序7 v( V* k: _% w0 k5 g7 O4 Q# U7 K
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's- W4 l+ t1 ~6 Q3 ` Q( L
// type flag to indicate the fact that this variant holds a BSTR. Place the- i% \8 Q$ j3 y0 a- Z
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" Y* P$ S- W8 p, ?, L' n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! F r1 D. c& b- B4 @/ U$ m. i
VariantInit(&requestVariant[0]); & H5 ?, h& w4 f& S w& y9 w
requestVariant[0].vt = VT_BSTR;
E8 D/ p& j$ L- u requestVariant[0].bstrVal = itemStr;0 g# c2 S% K% i8 U# P' o: h$ m4 T
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topicStr = SysAllocString((WCHAR *) L"system");/ N( j5 ]( e9 U( E8 m% d/ h) M
VariantInit(&requestVariant[1]);
8 c5 L- p5 ?- I! [1 k' d requestVariant[1].vt = VT_BSTR; X6 o# U. m) T) ]
requestVariant[1].bstrVal = topicStr;
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p: _- O. L0 R// Set the DISPPARAMS structure that holds the variant.* {% d, @ {1 j5 o# ?
@; X6 C( |. G6 s; ]# c
dp2.rgvarg = requestVariant;! \0 `6 l7 q9 E
dp2.cArgs = 2;
0 Q" f2 m. U* m( z* [$ h' u dp2.rgdispidNamedArgs = NULL;
- U% j7 {, P7 }% u( Y1 i dp2.cNamedArgs = 0;3 y( [1 e0 v6 ^$ D
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var.vt = VT_EMPTY;
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; e& x, p; a% Y5 X! \/ Y// Call IDispatch::Invoke()
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6 g' |3 Y$ m% e5 d7 b hr = m_pDisp->Invoke(* r" H3 X& { f; b4 s. ?4 m6 _* K
requestID,$ \' x; S4 N/ a$ v3 |# h5 E
IID_NULL,* y8 V) \ U3 z7 o* |
LOCALE_SYSTEM_DEFAULT,% b5 D: ]8 a8 ]3 Z/ U. i; ~& F
DISPATCH_METHOD,
( d) B* c- X$ g &dp2, h! t$ j' Y0 y* O
&var,# _ R% o8 Z+ t
&ei, O1 H2 R, E' @8 j& k& L+ ^( f3 z
&uiErr);* T; f& c2 Q# ?! p% z v1 o* R
; }2 k4 |: F, |/ G4 S B$ j SysFreeString(topicStr);
7 v; z) S# g3 ] K% @ SysFreeString(itemStr);( q! ?# I" h. e1 q' B) A
请问该程序是获得extend里面的哪个值?
% ?2 C* y6 z2 x# E v! N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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