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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:
- T( ^ | s1 L$ u4 BName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (' \& \& A- n' R& E$ M6 d
IID_NULL, // reserved% H7 F+ ?9 W! _9 @, z" j9 p4 A" L
&Name, // Array of names to get IDs for
6 c, z; R" Q! y; E6 _! r! Q$ B3 c' O 1, // # of names in the array# y2 q) V* b0 j5 ]
LOCALE_SYSTEM_DEFAULT, // System locale; J" b7 x R! g) f- }7 j8 Q. @1 I0 s
&pokeID); // Array of IDs to fill on output
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if (hr)+ X) x, C& c8 y# c3 \
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MessageBox ("Get Poke Unsuccessful");& Y% \: M2 q0 p# z! `# @; Q
return;! x$ J) [9 u" _( Q6 J" _- e9 ^2 d
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/**************************传递数据给extend**************************************/( H# v; y5 {1 X* a4 e, h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");4 H" i8 P$ F3 z0 l( X Y
VariantInit(&pokeVariant[0]);
- Q, W: V+ r6 ^* W1 q pokeVariant[0].vt = VT_BSTR;" ]3 _" H+ U) V) o% Z8 }
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& B! E( A! n# K. X
VariantInit(&pokeVariant[1]); ; S$ E N1 l; y+ e% d* Q8 W1 {
pokeVariant[1].vt = VT_BSTR;
7 B( W9 [, `$ D pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
6 N4 Y8 \- j& F1 n VariantInit(&pokeVariant[2]);
, W" ^; a, {2 j% F4 N% G0 Y pokeVariant[2].vt = VT_BSTR;( W% T% y5 E7 u
pokeVariant[2].bstrVal = topicStr;3 H9 q+ ?$ g# \" Z- o+ F* C
6 ~% v/ A( g. a/ ~5 Z// Set the DISPPARAMS structure that holds the variant.( Q6 | h D8 d& \9 ?, b7 t+ o
$ B6 z8 a2 {9 {1 f; Y0 F7 n3 U! y dp.rgvarg = pokeVariant;
d5 j5 l# s7 ]# V/ N dp.cArgs = 3;
* x( p& X R2 T0 U, f/ J dp.rgdispidNamedArgs = NULL;
0 z9 W! ?2 N) X3 f9 s- s6 N dp.cNamedArgs = 0;7 L# b0 z: q( N- e
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(: P$ i4 Y+ V+ S0 S6 L
pokeID,
# f9 U# I2 t& b G7 L/ e3 r( _ IID_NULL,9 `: A, G' H( Z5 T& ~ q
LOCALE_SYSTEM_DEFAULT,' g) n0 q% l; M
DISPATCH_METHOD,1 a5 F' A; J. b% i0 h8 }
&dp,
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&ei,# {4 A* F, I# h: L' |
&uiErr);
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( s+ @- ]( W4 D6 ` SysFreeString(topicStr);
$ I T; [. J& @! }, e5 H+ j SysFreeString(itemStr);* _6 Y8 a4 E+ p" e% X5 S% _
SysFreeString(valueStr);
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6 d- _; N& L6 R# V8 X! p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???$ m2 t& Z& z0 N! K6 B E8 [
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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2.这是request的程序
+ T# [- C4 J9 J x0 W" U// Request a value from Extend2 N [. C1 M( v$ L, p
//% @1 E& {1 \ N |" ]
// Initialize the variant that will hold the BSTR. Set the variant's
8 E& U: l$ K& g+ |, s5 f0 J: g// type flag to indicate the fact that this variant holds a BSTR. Place the
0 y0 h) ~% P/ V. A# ^' h2 J// BSTR into the variant structure.1 ]9 }1 w E) @9 U( m% x, p
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 D1 Y+ }, z& o, t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 n! z ~$ I# u VariantInit(&requestVariant[0]);
5 Q$ |& E2 ^3 N" f7 m; [ requestVariant[0].vt = VT_BSTR; O. q4 Y$ u; w6 f( M4 l
requestVariant[0].bstrVal = itemStr;
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- ]1 r/ A# h; m& c- l. R: ^0 ~' R topicStr = SysAllocString((WCHAR *) L"system");$ Z: ]1 J5 k$ E: }1 d
VariantInit(&requestVariant[1]); 5 j3 i9 O0 ]) x7 l8 I7 u+ [
requestVariant[1].vt = VT_BSTR;$ \1 `6 I4 E! a, |# n1 `( m' E
requestVariant[1].bstrVal = topicStr;( b* X$ E9 d, N6 I9 H, V/ K: C% k
8 r3 E' F# t1 c5 Y \// Set the DISPPARAMS structure that holds the variant.& y) b# ~- T& K: w4 F
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dp2.rgvarg = requestVariant;4 k; n9 r$ ^" b0 j4 I' B
dp2.cArgs = 2;
* M" ]* x# w# k/ g% S, ? dp2.rgdispidNamedArgs = NULL;
9 l) ^2 _, Q9 }5 h4 W1 C dp2.cNamedArgs = 0;" T, @1 ^* m& h# n1 ]6 Y
/ p+ a9 U' y5 F2 G2 r0 u3 _ var.vt = VT_EMPTY;" ?$ A7 m& F1 B, b f$ }
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// Call IDispatch::Invoke(); r" S# o$ Q9 N* ~- Z
$ \) w0 j$ J6 q/ U hr = m_pDisp->Invoke(4 [6 o) _1 e1 s) h7 s0 t0 B
requestID,
0 o) C1 m+ h% _! [ IID_NULL,
' v+ W* H5 G3 l, E/ [ LOCALE_SYSTEM_DEFAULT,
7 M: ^: Q* e' t, ~1 ~& q& x DISPATCH_METHOD,# Q, N$ t' T$ C
&dp2,
s' I2 f$ M) |8 u8 t &var,! c4 F* f5 N2 F. W( N6 {: F" p
&ei,
# N0 @) L) _0 q' {: p S4 Q &uiErr);, l6 T) p: w' a) y
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SysFreeString(topicStr);6 Y4 |! h0 \- i5 ]
SysFreeString(itemStr);
8 o( j7 z. X1 m; W2 [5 R& d3 N9 M- ]请问该程序是获得extend里面的哪个值?$ n$ a/ W+ [ A
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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