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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:0 @7 w; E5 \9 t; r7 @
Name = (WCHAR *) L"Poke";! w* k2 f/ f, u" h9 l
7 H. }, X* N8 Y3 ~: u! ~ hr = m_pDisp->GetIDsOfNames (6 {6 l. l2 H( X8 L# V# L4 e6 {; f
IID_NULL, // reserved
* w& b/ ~ F7 \ &Name, // Array of names to get IDs for
# G8 Y1 U& w5 U: T) u Y 1, // # of names in the array
' e/ M9 f5 \- a- R3 M. t LOCALE_SYSTEM_DEFAULT, // System locale
3 K% P5 V; J% L: Z &pokeID); // Array of IDs to fill on output$ C @- U- g, K8 {/ S) F6 i
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
- M2 T' ]" I G$ ~6 ~9 q: L return; ]! T) j. @( a. y' S
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/**************************传递数据给extend**************************************/! z9 b# J5 U' E! w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& t5 S, O/ g& u! T$ w
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valueStr = SysAllocString((WCHAR *) L"1232"); K M. S8 P1 @; a) z3 D& ?6 R
VariantInit(&pokeVariant[0]); # x" J& }0 K% }: P; l( e
pokeVariant[0].vt = VT_BSTR;
$ \3 ^) F0 r+ c/ Y" S pokeVariant[0].bstrVal = valueStr;; g" a2 r$ y# ]6 j1 ^ U- E& b8 A5 v
* T- L# e9 L. k' ^; c% W) x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# @3 h; w7 P: n3 v6 w VariantInit(&pokeVariant[1]);
* O5 E. l/ J" ~5 V, T* A& r0 E pokeVariant[1].vt = VT_BSTR;
9 ?( K( H9 L9 n& X0 y& e* N pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
8 a @! x5 a9 B3 y% m3 w VariantInit(&pokeVariant[2]);
( Y* A- o! |" b. [* W pokeVariant[2].vt = VT_BSTR;6 \- X3 W+ Y+ ?" i
pokeVariant[2].bstrVal = topicStr;9 k* d! X5 |9 q4 j
_3 [) I; M: ]; p7 v// Set the DISPPARAMS structure that holds the variant.: Y% T- D8 h! Q# p/ A& b* S' n- f
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dp.rgvarg = pokeVariant;! ?' [" j) a% f' e- c
dp.cArgs = 3;
6 |) W4 t0 q% H- B& h9 U7 H dp.rgdispidNamedArgs = NULL;
o9 Z7 Y: z2 ^! S g5 j$ j; J dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()( S- k; D1 h5 a& Q# g/ b+ j" Y. |
0 l/ K0 r6 t/ P. m' p2 x1 K hr = m_pDisp->Invoke(" d! {. `3 C" H7 [% [2 s7 f
pokeID,+ b" `& q8 F( f$ u, L
IID_NULL,: d: y" {! D' k/ {7 [- Y
LOCALE_SYSTEM_DEFAULT,2 @2 m' {/ d$ r; Z+ p
DISPATCH_METHOD,/ N& a2 R; m0 J) X% [/ v
&dp,6 z9 I1 ?1 s7 |5 O) S- u. i: C
NULL,
& t4 B \0 T- } &ei,2 c) _/ K, g; d
&uiErr);
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' p% G+ }! {0 J: u! ` SysFreeString(topicStr);
* m1 O; f1 ]$ O w+ T9 _3 j7 B SysFreeString(itemStr);
. o2 d6 `" V" p& F SysFreeString(valueStr);
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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???
- {) J' E5 J ^9 g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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1 g" b! l* ^# \5 v0 s2.这是request的程序& G% p# k' i( l3 `5 J9 W
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
+ \2 r1 F6 r* n' w3 W K0 v& J// type flag to indicate the fact that this variant holds a BSTR. Place the9 a% i' V8 B& Z1 @+ E/ e
// BSTR into the variant structure.
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0 o0 A1 r: t% s8 c4 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); f0 m/ V5 ]) P4 j, q' f- [3 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
7 r9 d+ h: v" r' S: Y VariantInit(&requestVariant[0]);
9 A7 z0 Q9 ? P+ b requestVariant[0].vt = VT_BSTR;
- J4 R% \, s0 m requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");! x4 M* Z7 {; |: C6 N& @6 @6 a
VariantInit(&requestVariant[1]); ! n( L% x u& B, F. u
requestVariant[1].vt = VT_BSTR;4 F' c; o- d0 K5 z) Q7 x
requestVariant[1].bstrVal = topicStr;0 _" C+ B! i1 h; j9 R
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// Set the DISPPARAMS structure that holds the variant.
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5 M# ~9 N: N/ I% \. M dp2.rgvarg = requestVariant; W. N6 H( h5 u' t
dp2.cArgs = 2;
5 T" L2 V& Z2 d; I T dp2.rgdispidNamedArgs = NULL;: o. i# N0 Z, _ R0 C
dp2.cNamedArgs = 0;+ Q6 p' R/ _. r; S4 e$ K
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()1 W4 ]2 B/ B. a
! Z: p( R% G6 s. ], S hr = m_pDisp->Invoke(
) n9 Y/ z* l* t requestID,9 J. y3 `, f2 W9 J7 ]4 Y
IID_NULL,7 V- I& i/ d- w
LOCALE_SYSTEM_DEFAULT,0 o& Y- D9 Q% l- Z4 ]& _8 W X( h
DISPATCH_METHOD,
8 `$ S# ^: v x; B! T; R &dp2,
4 w3 s( }+ l9 t2 H &var,
]' b/ {$ `, S8 M &ei,5 N% l" T0 c$ M6 `3 I3 o
&uiErr);- }: U! `% U8 w% ~' f+ Y) M/ u
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SysFreeString(topicStr);
" b! E5 _9 M/ r7 W- g SysFreeString(itemStr);
1 ~( e7 b* }: J" f2 |8 K请问该程序是获得extend里面的哪个值?
) e4 n. B9 S2 |- U9 ?* b/ P! X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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