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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:2 M% ]( F3 f5 \6 @& }; f# z. k& l3 _
Name = (WCHAR *) L"Poke";
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% [% z9 |# U# s1 R hr = m_pDisp->GetIDsOfNames (- ^5 Y9 d5 X8 d$ b& S# J5 R3 e
IID_NULL, // reserved
- k& b; ^2 @- M! V5 `% _ &Name, // Array of names to get IDs for2 {3 v8 J& m- {0 h4 I
1, // # of names in the array5 t [5 E! ^' f. V% I
LOCALE_SYSTEM_DEFAULT, // System locale, D( i5 W. s. j4 ~3 p) I. X
&pokeID); // Array of IDs to fill on output8 ]: |0 s: Y9 {. o" |
, J+ L# ]; t- Q$ l9 j if (hr)
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MessageBox ("Get Poke Unsuccessful");
* O; }7 K' T' q5 J* ~1 c; t return;
+ S m5 B- ], q: b; D# n }
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# z& x9 l+ M8 ~% g: ~2 B/**************************传递数据给extend**************************************/% L. {5 `% y3 _3 y6 X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: J8 ~/ K! H) c
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valueStr = SysAllocString((WCHAR *) L"1232");
0 L- Q# X) f: j' s, e VariantInit(&pokeVariant[0]);
( O) E+ V" q' k1 a# I pokeVariant[0].vt = VT_BSTR;; w5 r' C* ^1 K8 b7 f% {' A. s
pokeVariant[0].bstrVal = valueStr;! B$ a# H% N, j A7 P
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
0 L: v8 z' q2 \ VariantInit(&pokeVariant[1]);
9 n* O# j2 ?$ X. U3 s. X+ Z8 P, ^9 l pokeVariant[1].vt = VT_BSTR;
' s% K4 |, W; J. }7 ^9 S pokeVariant[1].bstrVal = itemStr;2 t5 Z+ G: {, W- q3 {. T
7 G- s, R& `# V3 L0 P topicStr = SysAllocString((WCHAR *) L"system");
: q3 t1 ^) K5 N4 ? S! n! Q+ O6 E VariantInit(&pokeVariant[2]);
- O( }& m/ T1 A+ M8 I# g& ?0 j- u4 y& Q pokeVariant[2].vt = VT_BSTR;; c( Y! R9 U) {& W8 z
pokeVariant[2].bstrVal = topicStr;
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l) z6 o- f: V* {// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
/ W+ _; G# _% | dp.cArgs = 3;" A1 O% x" v8 e5 q4 R
dp.rgdispidNamedArgs = NULL;2 k; b- i1 e' H% ?8 y
dp.cNamedArgs = 0;9 f3 W) g9 [$ s( z
3 c* ?& i) H$ c// Call IDispatch::Invoke()6 A3 k V' v! N t' s
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hr = m_pDisp->Invoke(
! G0 N! E ^7 S3 E pokeID,5 W3 C- _+ `* N6 \: n3 a
IID_NULL,
. P+ @0 s; Q# T LOCALE_SYSTEM_DEFAULT,. V& u% O5 @( l0 W5 a4 j6 {
DISPATCH_METHOD,+ H& q$ F2 b# G. [* b5 C
&dp,
% D; O# G9 i/ I o% J2 Q% M- { NULL,5 G& @' R- v8 L+ G' f! F+ A$ w
&ei,
. x/ c0 n- I5 Y3 V7 w2 B8 n9 ? &uiErr);
3 t' r" L: E2 H# d# u% `0 Z3 Y& v' E0 }/ [; h2 ~
SysFreeString(topicStr);% B' \( b* m: U3 g" r, K
SysFreeString(itemStr); m6 K9 V9 r* W5 m3 k
SysFreeString(valueStr);- v5 Q! w3 @# d5 R
7 n" |, u& {0 ^2 ~2 f
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???
0 l2 G! [8 c ]6 Y' r3 K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????7 A+ u2 W D* |3 \6 s$ r6 i( ^* ^& ]
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2.这是request的程序; `$ i( d6 C* i$ @5 P2 L4 P, a
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
8 i. g! O+ T, K// type flag to indicate the fact that this variant holds a BSTR. Place the
( p; F; R' j1 ]! g3 P3 Y- Y// BSTR into the variant structure.* s5 y9 ?2 O1 ?( T" r3 T
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& O) l! d9 n* H
VariantInit(&requestVariant[0]);
/ Y5 J* W, E. l! U' p; f requestVariant[0].vt = VT_BSTR;$ O5 Q, Z+ g+ h/ Q
requestVariant[0].bstrVal = itemStr;3 _! R9 |0 \0 L! I3 O
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topicStr = SysAllocString((WCHAR *) L"system");* N" V: O: {: t+ x, o( a. n
VariantInit(&requestVariant[1]);
3 W* V' d" h( ]/ p% t requestVariant[1].vt = VT_BSTR;
1 w+ H$ D' q' Y" K, \9 R3 ] requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.' ^- { |1 y' Z0 |" T( m
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dp2.rgvarg = requestVariant;+ y: _3 i* }! p8 t
dp2.cArgs = 2;) A" `. a+ f' Z2 d, V" a- v( F
dp2.rgdispidNamedArgs = NULL;/ l+ L( Z1 V: u
dp2.cNamedArgs = 0; ^" w5 K: E, u! Z9 { V u4 R5 C' K( |
( k! v" J0 ~! l# \$ N var.vt = VT_EMPTY;! G% Z: o9 [4 I+ ^* u
& Z. ], h# S! J6 O7 w; B4 B// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
3 Q2 \6 q$ s0 c0 a5 z J% g requestID,6 E$ m0 v! i8 u0 i# X! ~
IID_NULL,
- E1 }# Q, |. E/ D2 L LOCALE_SYSTEM_DEFAULT,
/ u7 G- K% p' K/ o3 s: u' a. ?" n" B6 e DISPATCH_METHOD,2 F$ G5 }, d0 Z5 q- R2 w# K0 h1 |
&dp2,* ^3 u4 {- Z+ a! m% H
&var,
+ C! p9 B& ~" s1 K &ei,
5 s5 |2 P: N: x, H0 P& I3 J &uiErr);
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+ D8 w; z5 j: |* W9 p0 R8 L) c SysFreeString(topicStr);9 e; q. o3 [' h8 @9 w: i% @
SysFreeString(itemStr);9 M+ ~: ?% y3 G$ U; ?( |- v* o
请问该程序是获得extend里面的哪个值?4 Y1 c6 U& N$ q; X1 T) p' n
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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