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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:
( ~9 M9 r; v& r9 ^Name = (WCHAR *) L"Poke";! U* I% P+ d& |
$ e6 z9 m! d' G+ [& k, ^4 l d/ a hr = m_pDisp->GetIDsOfNames (, i! A$ E; I4 n9 B- m
IID_NULL, // reserved
! \( C6 }9 L7 i$ A &Name, // Array of names to get IDs for
! @9 D7 U! F" R7 z% a 1, // # of names in the array, c$ E3 m- r# m0 @3 V5 J3 B
LOCALE_SYSTEM_DEFAULT, // System locale6 K% \* R0 g: g
&pokeID); // Array of IDs to fill on output
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if (hr)1 Q8 T! B5 b9 C) ]# n
{
4 C$ A8 X3 k! R( K MessageBox ("Get Poke Unsuccessful");8 a- l V$ n8 `8 K9 L
return;3 y4 c0 }# |5 k# w" R% F
}
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# t9 v5 R' v% N/**************************传递数据给extend**************************************/3 \( A) Z8 U, R1 r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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5 X1 F4 a$ Q1 ]7 `* ? valueStr = SysAllocString((WCHAR *) L"1232");$ n" N: {; S5 t3 |' S/ h" V+ B
VariantInit(&pokeVariant[0]);
$ D0 d5 j4 R' r; M# c' E pokeVariant[0].vt = VT_BSTR;' K7 T. U+ V5 I% q0 R! B; w
pokeVariant[0].bstrVal = valueStr;+ _2 @+ r/ h* ]' G* S9 `5 z$ G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" ?0 L' ]0 ^2 a# r" Z4 u& k4 L
VariantInit(&pokeVariant[1]);
7 Y6 Q$ W4 v, c! R% B, o0 \* o pokeVariant[1].vt = VT_BSTR;- i ]- {! d5 L
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
9 N( f5 \ q& c& F- q" S0 R VariantInit(&pokeVariant[2]); 5 J8 f9 O5 n. g* i
pokeVariant[2].vt = VT_BSTR;
+ a9 k# c% u' M' M) N8 c pokeVariant[2].bstrVal = topicStr;
/ o: c; k, R2 U0 B6 `9 E
+ d8 A/ C! d* U$ k% Q5 f/ r* B// Set the DISPPARAMS structure that holds the variant.0 l; T# r& `% G1 [/ T
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dp.rgvarg = pokeVariant;& _. v: d9 o! m7 o1 E! S$ F
dp.cArgs = 3;( F7 @( G/ d) F
dp.rgdispidNamedArgs = NULL;% _& @2 f/ x& |. ]4 q, t6 H
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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0 P+ A1 Q) f5 j( \9 X% Q hr = m_pDisp->Invoke(; W0 @8 \+ o! G9 T2 N
pokeID,
) W- B- {1 P8 |+ c IID_NULL,
+ o, ]6 V, h4 E6 e LOCALE_SYSTEM_DEFAULT,* p9 l' X# ?. r. V+ R- H9 F% x
DISPATCH_METHOD,
* N+ d5 k; C I. x, E &dp,
+ ]4 c0 a& F9 T. v0 t, S NULL,9 `- R; X, T8 q- ]7 u6 a+ {8 y- j
&ei,
2 u4 V/ P2 r: C% x, u1 R &uiErr);
# Y: F8 \3 `3 B8 m M
5 {. w' |' d! K2 G SysFreeString(topicStr);
5 ^9 U- {9 z( c) Y4 z SysFreeString(itemStr);! T" [! G, w+ p2 `/ a6 p8 b
SysFreeString(valueStr);
' f x1 O& j& I5 R+ ]& V, e$ j1 g$ F) ]1 x* \* n- O
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???% n- H- D# h; W+ N8 x0 |
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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S9 R1 h' H9 K6 r2 z" j* j9 @2.这是request的程序* _4 m' ]! `! G6 S! x' w
// Request a value from Extend
$ `& b+ E* t! \//
' v! Y+ R! M+ n' O& k// Initialize the variant that will hold the BSTR. Set the variant's, h4 k0 J8 Q0 T& w: |: K
// type flag to indicate the fact that this variant holds a BSTR. Place the5 n+ t" J) Q6 E3 L& T2 H
// BSTR into the variant structure.' S* E( q }* F+ s+ `, i+ `3 K) j& f
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
v) K2 @" P8 m& E5 K VariantInit(&requestVariant[0]);
, Y/ X! I/ e" Q+ C! L6 h requestVariant[0].vt = VT_BSTR;
& V) ?0 ^. [7 F. M requestVariant[0].bstrVal = itemStr;. z, M4 T6 \+ }+ U4 Z
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topicStr = SysAllocString((WCHAR *) L"system");
5 f" g0 `3 j: e( S VariantInit(&requestVariant[1]); 2 e1 z& @/ M+ M/ K% Y! B
requestVariant[1].vt = VT_BSTR;
0 Q' Y$ w# M# G. l requestVariant[1].bstrVal = topicStr;$ R) {& i/ w& J9 l& Z o, R! n
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// Set the DISPPARAMS structure that holds the variant.- M" |; }/ x5 n2 V" i
8 E7 P2 B+ Q. ?1 k q dp2.rgvarg = requestVariant;
6 s l7 j% ]/ T( ` dp2.cArgs = 2;
; Y( N, C! N- ? T5 v! D dp2.rgdispidNamedArgs = NULL;
; W; c/ d; u9 Z8 y9 |* u; e$ [ dp2.cNamedArgs = 0;9 g+ Y# _% |: j+ D
+ I6 T2 |0 H% K) L- I6 R var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
& y, h/ ~) i, h. Y requestID,; M: l( v& d% ^: q
IID_NULL,. ]7 g( I4 W; V: I, P: ]
LOCALE_SYSTEM_DEFAULT,' a2 X9 h; f# C9 Y
DISPATCH_METHOD,
7 v% O! A% R- |: w0 @ &dp2,5 K% c6 ?0 ~% N' \' q! E
&var,
, {3 J) I# ?9 m0 K6 t8 ~' D4 {7 H &ei,
7 Y) q+ }' O" M: }* H( { &uiErr);; q7 ]4 a4 Y8 `) _* |0 U
6 G! B% o) g! i) X7 t1 M SysFreeString(topicStr);
5 p: s# O& C, U4 U SysFreeString(itemStr);
+ U* Z7 k2 S9 S. y# J请问该程序是获得extend里面的哪个值?
7 i& Q% G& m3 Q; w( p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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