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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:! ^5 ~* O O8 g; ]
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (* t. B4 l0 X1 Z% \7 A
IID_NULL, // reserved- d8 [2 y) _* h0 ~2 K+ j
&Name, // Array of names to get IDs for0 O& ~2 W% j1 K9 ~
1, // # of names in the array
; D8 S& R, n Y8 |# Z2 T" @ LOCALE_SYSTEM_DEFAULT, // System locale
! D8 x% c* M* B &pokeID); // Array of IDs to fill on output0 `7 A ^) g; W& }9 ^1 c! S! k
% K* F7 f& d" X/ {) ~4 D. D- L if (hr)
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MessageBox ("Get Poke Unsuccessful");% F2 @* D2 v4 C7 ~6 w* H
return;3 v5 j" [* x1 I& m8 q
}
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/**************************传递数据给extend**************************************/+ K6 V4 x7 F5 Q1 _9 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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1 _2 F }7 Y) X, t valueStr = SysAllocString((WCHAR *) L"1232");9 q4 `- y. C3 \
VariantInit(&pokeVariant[0]); ^& D) X$ x, R. K/ @* T. d, E
pokeVariant[0].vt = VT_BSTR;
: i. J! j/ [" ?4 V3 t6 V pokeVariant[0].bstrVal = valueStr;. t( Z! Q& F& u0 u
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. ]5 S7 |( F" l) o
VariantInit(&pokeVariant[1]);
7 h1 j2 {/ \2 W* d# i pokeVariant[1].vt = VT_BSTR;) X7 w' o! h* q: |- X* b
pokeVariant[1].bstrVal = itemStr;
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0 V( }1 J f$ y- t topicStr = SysAllocString((WCHAR *) L"system");
8 `* S8 J: i: l; A$ S VariantInit(&pokeVariant[2]); : \; c m1 I' \ ] U
pokeVariant[2].vt = VT_BSTR;
& v8 R/ |- \ M4 ?8 ~( O8 g pokeVariant[2].bstrVal = topicStr;+ L( O- R' Y. C: V; p
$ H6 c% K9 D9 a' d0 }/ a, W// Set the DISPPARAMS structure that holds the variant.6 u( Q8 A n- F1 |% b
* w$ r* K: n: G/ B/ k dp.rgvarg = pokeVariant;! q' H/ {9 I5 ]% I- ~2 p
dp.cArgs = 3;
" s8 W( ^( l8 }$ @ dp.rgdispidNamedArgs = NULL;3 D0 G$ B0 Z3 R2 X4 q- R i# o
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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) i$ p O, e7 q( t, V2 K: ] hr = m_pDisp->Invoke(- Q4 T; L" k+ j2 ?
pokeID,0 W D5 a3 e* Y$ e! l
IID_NULL,
. b, ~/ X8 F: N) X LOCALE_SYSTEM_DEFAULT,/ W2 C+ W4 L' W5 O
DISPATCH_METHOD,
/ ]6 Y/ p6 U9 y K1 I &dp,6 z$ O! l( t( ^! K! W( c
NULL,- k# Q, }: c R) `1 G" [
&ei,
4 _: m$ V P7 u* m &uiErr);( p* w! j( J1 G+ U& J
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SysFreeString(topicStr);
- t G% y3 z% |% G SysFreeString(itemStr);
# i) p! {. V4 _/ w SysFreeString(valueStr);8 w! S. r+ O. }. ], ~# i
( [( p$ A; V6 b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???8 w7 h w: ?2 g/ s9 I# _* \
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????* }/ o9 [: k% F7 `" M% H! t* ]& u7 l
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% ^9 r# J, c. H, y7 i& \# W2.这是request的程序
$ T. e! e! \& H: R// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
4 g2 s# a7 B3 [9 l% b0 M8 W' X// type flag to indicate the fact that this variant holds a BSTR. Place the( z2 \9 L$ I0 s
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" `% @* n! e m' s$ R" M" i" L
VariantInit(&requestVariant[0]); ) r) y' ?8 L( L
requestVariant[0].vt = VT_BSTR;- ~; j- `" g7 q4 d" M9 {, ]# J4 J
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
+ h+ P3 [2 }4 S. b$ v' z* O VariantInit(&requestVariant[1]); 7 f: t2 c; q5 V3 F7 p% k
requestVariant[1].vt = VT_BSTR;/ r9 h- A" A5 F6 w
requestVariant[1].bstrVal = topicStr;9 f8 B8 ]8 Y7 b# t, z
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;1 j; c' [9 B+ g+ p0 Y# [# k
dp2.cArgs = 2;
% `$ T+ V$ \5 o5 s dp2.rgdispidNamedArgs = NULL;/ R4 \+ p5 d. f; L) `7 U( u
dp2.cNamedArgs = 0;$ _" S- ~( y0 k& z& s( ^% |( m3 W% i
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var.vt = VT_EMPTY;
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5 L4 G9 L1 G3 o1 M- j// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(( i6 c8 G' O7 A$ P7 h: E$ r
requestID,4 `" R% @+ e3 v/ h+ J) W/ b
IID_NULL,9 x! v3 ^$ P/ P' ]& i" [
LOCALE_SYSTEM_DEFAULT,$ {) W7 T: v1 }- g
DISPATCH_METHOD,
6 I+ K8 M! Q; [6 C, E4 u% ]; f &dp2,: _$ d, k6 ^) M" G0 L
&var, w. E: X, W; i: B$ ]3 n
&ei,1 O# n- s% ]9 E) z4 B# L& _+ y
&uiErr);
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& f* G( D8 J4 T( d6 K; @9 m SysFreeString(topicStr);2 N, ^6 E/ K1 ~$ Z
SysFreeString(itemStr);2 D/ m) \; m N9 p
请问该程序是获得extend里面的哪个值?
+ C) w: q# _# ?8 l7 Q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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