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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:7 \, w4 g) z4 T: h# o
Name = (WCHAR *) L"Poke";! q/ `1 B( Y" _
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hr = m_pDisp->GetIDsOfNames (
$ }" ?6 S9 m# {/ M+ y IID_NULL, // reserved
2 u8 q% D) J# o6 D &Name, // Array of names to get IDs for
( h% ]% G% @, \/ C 1, // # of names in the array
7 q& ?, T$ I, B, v LOCALE_SYSTEM_DEFAULT, // System locale
8 y0 H6 U5 \9 Z# J, D &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
# {% J6 o- h3 \6 P. U; i( M" [& X1 l return;( z3 I- w0 u4 ?2 s0 E1 F6 i7 o
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/**************************传递数据给extend**************************************/. @8 [& l9 b# o: C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 i% k: x7 a& B% m" e2 L- `5 H6 f
$ R9 s2 O u% k, d/ y# z: E valueStr = SysAllocString((WCHAR *) L"1232");
- b5 T3 T# K% \+ x' Q7 ]3 ^2 P VariantInit(&pokeVariant[0]); 1 C) M8 z' v7 _( j
pokeVariant[0].vt = VT_BSTR;
k+ v8 G, @0 c0 E. u pokeVariant[0].bstrVal = valueStr;. v$ E4 _. g$ E% G# S. v
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 b$ y, z) b% V& m+ O5 z
VariantInit(&pokeVariant[1]); ' B- K8 @7 ?4 j+ F1 ?+ M
pokeVariant[1].vt = VT_BSTR;) Y( A& c+ _# p* Q5 A* u
pokeVariant[1].bstrVal = itemStr;4 ?$ Q: [- X& y F% j
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topicStr = SysAllocString((WCHAR *) L"system");$ ]1 f0 q: h; g$ W$ @- s1 o0 H' o
VariantInit(&pokeVariant[2]); / ]( q( N3 [$ L. N
pokeVariant[2].vt = VT_BSTR;
+ X( D/ d3 M4 x pokeVariant[2].bstrVal = topicStr;8 i3 O7 V9 ^1 O4 X Q* J/ V, H
z( n% G+ j/ s// Set the DISPPARAMS structure that holds the variant.2 }' ?" k- Y" ^5 v
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dp.rgvarg = pokeVariant;4 E8 `7 K7 \" L4 i& y y! J8 x$ t$ E
dp.cArgs = 3;( V8 _4 o% P# E6 C( @3 ~
dp.rgdispidNamedArgs = NULL;& f- B: s0 D) L" Q
dp.cNamedArgs = 0;& h$ R+ S9 F, H6 m {
+ g/ a# @* S2 s// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
" O" y# H2 Y9 p: `0 Q9 p& k. M& f pokeID,
. L. O% l- U0 j" f" B/ ? IID_NULL,8 l0 I$ E+ O/ C+ r, R
LOCALE_SYSTEM_DEFAULT,. Y# v4 [2 }/ I+ d& W" R8 I: S
DISPATCH_METHOD,/ A! f4 {: ^7 \6 v% _
&dp,
6 k$ R6 @8 Y6 }$ j) r NULL,
- [1 ?) Z# [+ J% `# a &ei,
, o2 p' B' b9 ~6 u$ \& x" X! ?- } &uiErr);3 _1 m5 h" a# m9 J/ n
* S1 ^5 m& Y) o$ E' {; _+ H* t2 z) p SysFreeString(topicStr);' X: p0 e$ R# W+ n; c) Y% R
SysFreeString(itemStr);% H" ^2 q* D5 ?' d$ o
SysFreeString(valueStr);. A# r8 s7 N9 g% t+ `+ q
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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???
# ]* H; y% S9 }8 y/ w9 x8 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????+ Y8 k3 a9 e+ I% [. c- b; J D
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2 i# Y* x3 P. t2.这是request的程序 Z( J; G, @4 \0 G1 n
// Request a value from Extend
8 L+ N6 ~1 J+ v: `3 d//
: D: s! ]6 r: @# L9 d" f7 S// Initialize the variant that will hold the BSTR. Set the variant's
( }; t" D# |# Y5 Y& a: G* l- U/ Q// type flag to indicate the fact that this variant holds a BSTR. Place the ?2 ?4 L6 o8 X& S1 m, D
// BSTR into the variant structure.
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5 \. [3 J5 I3 T# s0 I1 p; l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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5 k( ]% g. Y0 x, ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: h1 `+ y3 e& f VariantInit(&requestVariant[0]);
8 k$ B! \, l4 m# e requestVariant[0].vt = VT_BSTR;
6 r! [0 h8 u! n* u6 X) a requestVariant[0].bstrVal = itemStr;8 @" T( ^0 r3 L% o6 n8 Y+ V* ^3 W/ f
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topicStr = SysAllocString((WCHAR *) L"system");
1 c% N1 e/ k" t. {/ Z+ j VariantInit(&requestVariant[1]);
+ Z4 ~& `, s7 Z+ F requestVariant[1].vt = VT_BSTR;9 \% a3 Z" H0 {3 o) b
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.) v! I; [' S( N
! W; O! J. R1 m( n- v- F4 [ dp2.rgvarg = requestVariant;
& E0 [! S0 K5 T% p; V dp2.cArgs = 2;
: Y5 E [ o2 [: O% T dp2.rgdispidNamedArgs = NULL;$ D' N' d o: w8 T9 Z$ q/ Z
dp2.cNamedArgs = 0;
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3 o Y5 H. S1 t0 t$ R! z# c l7 h var.vt = VT_EMPTY;, l) G, c8 z+ ^; _
7 E& ?! Q, f9 p$ L4 g// Call IDispatch::Invoke()
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. _0 R8 V5 W8 J; R6 Q7 b( ~ hr = m_pDisp->Invoke(5 S+ ]) u" n/ B0 L- T6 b) m0 H
requestID,
: @) ?0 }- e) t IID_NULL,
0 k$ ]8 Z. o9 E. g- Y) R* z3 p LOCALE_SYSTEM_DEFAULT,& y8 F' y, }+ l" N3 a
DISPATCH_METHOD,# f* v' Y2 y; @
&dp2,
! O& V) s6 w9 M1 V$ X &var,8 J }" D4 c2 L. S! l( K
&ei,
8 e9 M8 ]% s& n u6 { &uiErr);+ I. I3 _5 j$ E. i" P* ~# u. E, z5 h
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SysFreeString(topicStr);$ ~9 D* n3 n/ c+ X) P& u
SysFreeString(itemStr);
5 t* v& R7 u. v. _4 N请问该程序是获得extend里面的哪个值?8 B9 Y- G3 X) K* j' K
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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