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:% E3 f& }: ?" i7 C
Name = (WCHAR *) L"Poke";
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- C$ o* p1 t; a4 { hr = m_pDisp->GetIDsOfNames (
! p+ j* A9 O, [! @, s IID_NULL, // reserved1 ~" O Y! r7 b6 b' j7 q U
&Name, // Array of names to get IDs for! J& [2 v- m9 a( x: |8 C: _+ Z
1, // # of names in the array6 z4 b9 | A: a
LOCALE_SYSTEM_DEFAULT, // System locale( E. g2 ?1 S; T* q2 I
&pokeID); // Array of IDs to fill on output
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if (hr)6 i( m8 r* S2 k; I5 X0 z V- Z1 v4 f% v
{
# q) s7 n5 [) I3 w: d MessageBox ("Get Poke Unsuccessful");
8 m, b+ T- H$ X# h return;
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) U5 E0 N( ^. e* H /**************************传递数据给extend**************************************/
+ ^' G- t: \" k9 R# G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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& g6 Z6 b9 L1 m" J3 L2 _ valueStr = SysAllocString((WCHAR *) L"1232");% t7 ?+ ?9 c8 \: E) N
VariantInit(&pokeVariant[0]);
$ Y9 C4 o [6 R' ]0 V* @ pokeVariant[0].vt = VT_BSTR;
8 P. j% f1 r) H& m pokeVariant[0].bstrVal = valueStr;, B( o0 V5 J- P' f7 Q6 r7 W/ \/ d
# F( j7 l. C5 G3 x9 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" v1 H% @' y7 ~7 |2 r VariantInit(&pokeVariant[1]); 2 i1 [; j4 m0 c2 I7 E+ F
pokeVariant[1].vt = VT_BSTR;
& B( m8 C- m' q. w; i$ H8 l/ Z8 |7 {+ \ pokeVariant[1].bstrVal = itemStr;" A( o* n' I) W$ i
3 c5 V8 b9 O6 }2 V( D topicStr = SysAllocString((WCHAR *) L"system");
& F2 K8 [" Y D8 j: G VariantInit(&pokeVariant[2]);
5 x! Z# b' d( w: C% u pokeVariant[2].vt = VT_BSTR;
5 C$ j7 \, W' i) R; a4 s% S pokeVariant[2].bstrVal = topicStr;) G P5 p( O, p1 b
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
1 X- z- q8 p$ z( F" E6 U dp.cArgs = 3;: }# J2 ^: ?7 b3 Q: D% W
dp.rgdispidNamedArgs = NULL;3 m- M. C0 U4 e/ i0 p7 d2 V6 K
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()5 x2 S, h) {: j; O8 D
1 i# V# Q l( [8 _" ?( z hr = m_pDisp->Invoke(
$ ^; L# g+ ?7 N& J5 `5 N/ k pokeID,* u9 \+ ^' ~1 V7 E6 ?6 x# _
IID_NULL,+ r0 V- C4 Y+ V
LOCALE_SYSTEM_DEFAULT,
: G9 `$ \; [/ C' g DISPATCH_METHOD,
4 e/ x* ^/ V' Q &dp,
* n" h2 d% ^- ?, A& h NULL,
. r; W6 Z; y- F4 ^0 B' H &ei,
% N4 X0 R/ i) F; u! } &uiErr);
, |6 ?* W/ B# c& F
# Q K1 L( m5 d. a1 E9 m7 V8 u SysFreeString(topicStr);
& d/ E: s/ ~ L( |. @3 Q) }( e SysFreeString(itemStr);4 `$ X, ]: a; p q- C" F" I
SysFreeString(valueStr);0 n* k" q' r. }; q. q' v
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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???* S' a( O# Z% j8 H8 l2 E% ^
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0 i( {! v% K9 A3 _( O5 A
// Request a value from Extend2 e, n Q- i4 y& o
/// s* e3 _7 P6 s4 H2 C
// Initialize the variant that will hold the BSTR. Set the variant's6 r; G5 J% ?6 U W, S2 _5 ]( e, F
// type flag to indicate the fact that this variant holds a BSTR. Place the0 b! F0 a. e% E
// BSTR into the variant structure.
0 X, L5 @) h3 p: P. {
4 k7 M: N; z. {8 c+ o) a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 ], \8 s6 z2 S1 Q+ K
* B; X7 v& ?' Z* V5 ^- r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* [3 k2 S4 E/ N9 v I
VariantInit(&requestVariant[0]); % R) z% {& Z7 j q/ R
requestVariant[0].vt = VT_BSTR;
7 @1 ~; X/ Q' Q5 s requestVariant[0].bstrVal = itemStr;
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& E: q5 R/ ]1 p M, \ topicStr = SysAllocString((WCHAR *) L"system");$ ^# t; a! m* j# w" G8 L9 N
VariantInit(&requestVariant[1]); 3 P5 G! s* p1 e6 \6 ~$ W9 `
requestVariant[1].vt = VT_BSTR;
5 q- V( q5 z4 L* n" s2 i requestVariant[1].bstrVal = topicStr;5 {) l% u( j T! q8 a
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// Set the DISPPARAMS structure that holds the variant.7 j( k: e$ ]' M' j4 N0 f& T1 m
' v) ^. X8 G$ n- D4 i; T
dp2.rgvarg = requestVariant;% O; b$ _5 I, C0 Y2 A3 D( n
dp2.cArgs = 2;
+ c) T: e" K4 B V& v7 i2 S; M dp2.rgdispidNamedArgs = NULL;
5 S3 t' ]$ y/ u" c1 \ dp2.cNamedArgs = 0;& {" O G# x9 I; o1 [( [
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var.vt = VT_EMPTY;
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6 F6 y. l2 ?! F4 c- U // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke() F' k1 d: l3 C3 \/ ]( e% a5 G
requestID,
: q3 _" ?: A# O' O IID_NULL,
! R- P4 J5 m5 F LOCALE_SYSTEM_DEFAULT,
t# m) S: N% p7 b# X DISPATCH_METHOD,8 H, d0 S: o) R# o5 i
&dp2,
. O0 E; H+ B8 m7 F+ T4 K& q( u &var,5 l" N0 x. `* k4 w0 Y
&ei,
- }* P8 P# {; j3 p/ d$ J5 R &uiErr);' [( X1 V1 k' X& `+ P5 u
4 d/ f1 z9 [- ?; B- i& C$ {
SysFreeString(topicStr);* J2 F+ M1 ?; z. {6 ]
SysFreeString(itemStr);' [6 C1 V% E$ K# u3 A: q) A, |; O
请问该程序是获得extend里面的哪个值?+ J) n7 F* R7 O. m
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????
我来回答