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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:3 t* i: P- }* d. |4 Q; \9 t0 m, M
Name = (WCHAR *) L"Poke";
, \+ l% ] A0 B: | % v, c j4 @3 l& n1 B& U! v0 m
hr = m_pDisp->GetIDsOfNames (2 b. Y( }: T% o, s1 ]
IID_NULL, // reserved. S. c4 R1 ]* i! G+ U
&Name, // Array of names to get IDs for# y" d' |# O: A6 o
1, // # of names in the array
$ P+ L4 H# g+ y1 @/ b# e, J0 r LOCALE_SYSTEM_DEFAULT, // System locale
7 B" z2 U3 v1 G! O3 @' }; q &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");! k4 G a' D1 l: n8 X- E
return;) C4 h7 A- R9 X9 S& X; P$ i7 ~( D
}
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/**************************传递数据给extend**************************************/- V1 y' s& C+ }' b- a6 T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; X; h, C- l2 X2 y
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valueStr = SysAllocString((WCHAR *) L"1232");
. B( ?. A: `( n- V8 m4 I3 V VariantInit(&pokeVariant[0]);
2 |. D7 ~8 l* m4 W% } pokeVariant[0].vt = VT_BSTR;( m6 v# ?7 [ O( S' ^
pokeVariant[0].bstrVal = valueStr;
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$ `& n& c8 z. o2 W) z! _$ v% s ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! N9 @" m* K! r1 P( q: r1 r
VariantInit(&pokeVariant[1]); % p4 v+ @" u/ O/ s& D7 M
pokeVariant[1].vt = VT_BSTR;
6 ]. A2 c, M! A pokeVariant[1].bstrVal = itemStr;
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: l+ t" B% G# v! v" n* j topicStr = SysAllocString((WCHAR *) L"system");2 c- v2 k3 Q% p8 z
VariantInit(&pokeVariant[2]); 8 p% ~9 h4 O0 j( W3 |, L2 u: y% ~
pokeVariant[2].vt = VT_BSTR;8 V7 |, g% s$ C- S
pokeVariant[2].bstrVal = topicStr;; m: a5 m% x, ?# A1 |+ A
& a* `2 T8 U7 v) \- h0 [// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;% O; x# S$ Z+ T/ R
dp.cArgs = 3;. b2 j% e5 T+ X3 y, p: b
dp.rgdispidNamedArgs = NULL;
# m5 R2 C8 V) F* z; Q+ O$ j6 | dp.cNamedArgs = 0;5 [+ D7 r; I$ t$ c0 ]
* s1 S, z. A2 h! _+ F// Call IDispatch::Invoke()' N: O/ ^) U+ |5 K& ~
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hr = m_pDisp->Invoke(
$ ~" d) ?9 E- Q pokeID,
) P0 L3 y% H6 K8 _% h0 x( l& L% Y IID_NULL,5 i) C9 S# L8 B8 D* y
LOCALE_SYSTEM_DEFAULT,1 s6 T+ ~6 U: y' y
DISPATCH_METHOD,
) ]+ z% S9 Y2 n; g &dp,5 y5 y$ q) \) `, e* _
NULL,8 y6 I0 S# Z" o7 R
&ei,
3 f7 A1 |3 G1 x &uiErr);
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1 E- s$ v6 \: F$ B9 n$ W SysFreeString(topicStr);
! i' h) \: \5 S9 z SysFreeString(itemStr);) Q+ _6 g: N$ c: ^ k7 T/ K$ `2 j
SysFreeString(valueStr);
5 s$ c) @/ [( h. p3 t
) r% o( T* c# I F1 f8 R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???, l) p6 s* A" C3 b* A
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???? N" O/ l$ V2 d% Q! R
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s* D! v7 r; \/ z8 `9 j* X2.这是request的程序5 `. S+ ^7 p5 R+ K' U9 d1 O, O
// Request a value from Extend0 F1 n% N: e$ L, s0 o0 m" K
//+ C5 G7 ~4 O8 b/ ~6 e" V
// Initialize the variant that will hold the BSTR. Set the variant's
) u" Y* u' F+ G5 x6 l% a5 L// type flag to indicate the fact that this variant holds a BSTR. Place the
4 z: q8 [# M# [- p1 E8 L2 ?// BSTR into the variant structure.* V% ]7 c; g4 a2 G9 D( Q. ? b+ ~$ V
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 p$ k6 U+ K5 m' P, ^
VariantInit(&requestVariant[0]);
* t/ {$ N5 P/ L6 D6 h5 i% u# _* d requestVariant[0].vt = VT_BSTR;
+ K% L- R2 A. K" I: F& K$ t" U0 b requestVariant[0].bstrVal = itemStr;
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$ N9 j; n4 {7 c- A4 r0 b topicStr = SysAllocString((WCHAR *) L"system");
+ ^1 i0 i3 r8 Z0 |* { VariantInit(&requestVariant[1]); 9 _1 w# z" W$ S( m. j3 h' x- h
requestVariant[1].vt = VT_BSTR;
8 R$ N* ^" o# J |5 y* R) w requestVariant[1].bstrVal = topicStr;/ i- h+ O! k. `; Z; H$ k
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// Set the DISPPARAMS structure that holds the variant.
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3 I3 h- J! X3 O T3 r4 a dp2.rgvarg = requestVariant;$ d$ F$ s: O% |. {- e1 [ d
dp2.cArgs = 2;( X6 B7 h" f' S0 g% X
dp2.rgdispidNamedArgs = NULL;
8 N O0 u0 k# F( E3 x% c! w dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;) e8 |" u" a* x
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// Call IDispatch::Invoke()
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k! a8 t: Z- J9 r hr = m_pDisp->Invoke(0 l N" P( i0 X) d
requestID,
. g, y6 x _! G7 U6 _ IID_NULL,0 [) \# o# a+ g7 V m- {9 I: e: }( ^5 O
LOCALE_SYSTEM_DEFAULT,
' d, p- x" p2 F; K, s, F* j DISPATCH_METHOD, F; ~+ f: N( _8 r& K
&dp2,6 F2 Y. g9 n5 o" g
&var,
( \* T6 f8 ^( x3 ^8 j0 l6 f, y &ei,
3 n6 A1 s! c) C& b' r, T5 R( y &uiErr);
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SysFreeString(topicStr);
6 a3 ~+ }& r: q SysFreeString(itemStr);/ Q$ M4 e% f8 _
请问该程序是获得extend里面的哪个值?7 E+ k5 U1 G, o4 i9 ?0 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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