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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:
% S7 F* z/ l1 T* a' \1 bName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (# Q* y) z) ~8 j7 I- \, @2 C1 ?+ S
IID_NULL, // reserved1 p) r- q2 l% K/ U% y
&Name, // Array of names to get IDs for
6 Q0 B1 O2 e8 j6 m7 Z" r 1, // # of names in the array+ {4 J _! X: ^- o( O* u7 Z! _
LOCALE_SYSTEM_DEFAULT, // System locale0 t; d1 W; |' y) T" G7 k" J5 k4 Z
&pokeID); // Array of IDs to fill on output+ i$ s1 j) x6 U7 d9 p# C
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if (hr)
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MessageBox ("Get Poke Unsuccessful");! } w2 O! \5 S
return;5 P/ J& b- P9 a
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2 c7 M# h+ m6 m- j. w0 |$ y/**************************传递数据给extend**************************************/% Q) g! [' ]1 Q9 {) _/ `8 z# k- J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* F5 ]. }" m% c8 `3 I
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valueStr = SysAllocString((WCHAR *) L"1232");
8 ?3 S" ^# i! R& B VariantInit(&pokeVariant[0]);
* u w: S) j4 c! x3 I pokeVariant[0].vt = VT_BSTR;
: P1 Z: M0 `% m3 |( a" z pokeVariant[0].bstrVal = valueStr;
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! C4 b' t+ S% B! G! a0 m& ^9 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# l$ L7 ?( x8 P* q
VariantInit(&pokeVariant[1]); ) N; P S' x: o6 p9 k" h
pokeVariant[1].vt = VT_BSTR;
) p0 |+ c& Y, E) R& u. t0 ?7 @# ^ pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");; k4 R9 \ E4 Q
VariantInit(&pokeVariant[2]); ; ?+ O* L' ?/ L! W% E8 y1 x! r4 K
pokeVariant[2].vt = VT_BSTR;
/ ?9 E4 z% d1 |2 T$ X pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.% [ M5 O) ^" T, @
/ C: t/ m; X: U; W8 n dp.rgvarg = pokeVariant;- Y( F0 L; O1 q1 E5 l. C( C
dp.cArgs = 3;$ H* y1 p1 N* @9 n
dp.rgdispidNamedArgs = NULL;4 `. g6 e- C1 n! _
dp.cNamedArgs = 0;9 ~2 ^: r' S+ ]; p; b
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// Call IDispatch::Invoke()
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$ {2 H6 I; `9 l; e8 G7 `: U hr = m_pDisp->Invoke(
9 _5 d8 d d0 F! N3 _ pokeID,+ I. m: A1 i& f& o
IID_NULL,
9 b- t0 k* ]* g/ N( y; L9 ?9 f LOCALE_SYSTEM_DEFAULT,9 r! E, }% K7 S: g* T W9 A
DISPATCH_METHOD,& B) M7 G/ s, ~4 _) l
&dp,! g1 |; h r4 P5 x$ A# V2 C
NULL,' e+ o- M6 c: Y" z# V4 e$ Q E% x
&ei,
9 k. \! q# I% v" U9 H6 l &uiErr);$ @# I. O" v0 C8 I, K
4 V' m# l* P, E" t SysFreeString(topicStr);9 [. z8 B* Z* {! S, X: U9 I
SysFreeString(itemStr);
/ [& a y% b/ ~: f2 R SysFreeString(valueStr);
2 i+ a- ?) b7 B+ Z0 m
& a1 I( k }2 \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 l3 X* u( c8 r {) {
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- I/ k% u" M/ @% I
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's/ V/ ~" c6 y: p; J% J
// type flag to indicate the fact that this variant holds a BSTR. Place the
8 A- k5 A$ C$ Z3 P7 d// BSTR into the variant structure.
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# {" U* \4 V" l+ e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 g" M! G& {" c, D2 r B& }- z: @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# O5 ]1 S) r- i' | V9 D+ K VariantInit(&requestVariant[0]); 6 _$ U% \9 i" O1 Y; s4 \
requestVariant[0].vt = VT_BSTR;( [, X( I M4 o
requestVariant[0].bstrVal = itemStr;
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, @0 _2 W3 K$ v* P5 D7 t topicStr = SysAllocString((WCHAR *) L"system");
: k( d) c0 [$ E/ k& c VariantInit(&requestVariant[1]); 8 g6 F8 ~" p; w$ D4 A1 X
requestVariant[1].vt = VT_BSTR;
9 C0 p) `4 H, D requestVariant[1].bstrVal = topicStr;4 w/ f4 P1 ]/ c- @: ~9 T* o
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// Set the DISPPARAMS structure that holds the variant.! W1 G7 b4 a, @8 ]# p; G, b% D
( _5 I: v Y$ J* y- J8 j dp2.rgvarg = requestVariant;
9 M& |/ L$ F( e8 w& K dp2.cArgs = 2;
. |+ Y7 [! s: T dp2.rgdispidNamedArgs = NULL;
, z1 i' p- q; E( h/ d5 B/ W4 ? dp2.cNamedArgs = 0;( ^+ V8 L1 j, D9 j4 ]7 R$ y
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var.vt = VT_EMPTY;
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/ e- U0 Q" o D0 A; Y// Call IDispatch::Invoke()1 D6 T9 ^8 W6 d
. i2 M- p* P) { hr = m_pDisp->Invoke(3 M* O9 v" s% C0 v9 o
requestID,
' B+ v$ q; w: j4 T U IID_NULL,
# ], p& H# ?) I- O3 O LOCALE_SYSTEM_DEFAULT,* S }* x4 L6 `1 z: a$ q0 Z0 g+ g
DISPATCH_METHOD,0 w* X4 B+ x7 m) ~: m+ g
&dp2,7 M( a! k6 J9 M1 O6 \4 s
&var,9 [& O* p5 c. h7 y. B S( n. k, w# }
&ei,
7 {; i# Q f- i3 B6 b &uiErr);
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SysFreeString(topicStr);% g, s. z L$ w" Q0 x
SysFreeString(itemStr);
, e7 s9 J; d d: w \; F请问该程序是获得extend里面的哪个值?& T# L" W3 Z. ?
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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