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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:5 {, {$ K* h. O
Name = (WCHAR *) L"Poke";( R" Z* o$ ` b* T0 f
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hr = m_pDisp->GetIDsOfNames (
/ s1 J7 H. D& W: q IID_NULL, // reserved
/ x' o5 H) l+ Q &Name, // Array of names to get IDs for
' y f3 U! o2 T2 I9 ~" }7 k 1, // # of names in the array$ C! Z; e8 ?6 k& v4 r# n
LOCALE_SYSTEM_DEFAULT, // System locale2 W2 v+ X4 f5 r$ r1 C1 S- o5 M7 j
&pokeID); // Array of IDs to fill on output
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if (hr)9 i% [6 {. j8 y4 r& V
{
" h Q. S4 J4 S MessageBox ("Get Poke Unsuccessful");' v& b* c4 Z! [: j
return; I/ S+ N$ j$ a1 {9 C
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/**************************传递数据给extend**************************************/4 U" C+ _( y/ k; j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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2 g6 R/ Q9 l4 m( A0 d" h valueStr = SysAllocString((WCHAR *) L"1232");* ~' M3 K0 V$ m$ Y) L9 S
VariantInit(&pokeVariant[0]);
/ H: C% N! c G6 F& P" L1 o1 i pokeVariant[0].vt = VT_BSTR;
1 {7 T4 f+ \! i9 N9 _& u pokeVariant[0].bstrVal = valueStr;7 e5 w7 l/ c0 ]$ m5 N: k3 r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. g# R" i6 p/ _7 z9 H
VariantInit(&pokeVariant[1]); + {7 t7 C/ X. A( V8 u. y. G
pokeVariant[1].vt = VT_BSTR;
8 A) M6 _$ k% e( p pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");6 A, x+ Q' J, s
VariantInit(&pokeVariant[2]);
, p- m& E% j+ K pokeVariant[2].vt = VT_BSTR;
% H0 Y$ P, a" F7 J5 G pokeVariant[2].bstrVal = topicStr;
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; T% N2 H. J' v8 y4 T3 U// Set the DISPPARAMS structure that holds the variant.& b6 r5 E' S, `; x
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dp.rgvarg = pokeVariant;# i; R9 Q F, |1 e2 w: y( g/ a
dp.cArgs = 3;
; i. ]& Q' ]( U3 T) i2 i5 a dp.rgdispidNamedArgs = NULL;
R' t& D! m8 X; v dp.cNamedArgs = 0;7 \( b5 {' A9 f6 l4 Y3 J" J
6 O% [: u) k# [* a) K' x* v0 j0 F// Call IDispatch::Invoke()% F& j: ~: v% v( z( D
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hr = m_pDisp->Invoke(
$ J4 J+ [! t( y pokeID,
3 k7 h J! N! u' ~. N9 Z- J IID_NULL,
! R w2 D$ w7 z LOCALE_SYSTEM_DEFAULT,
; ?" o3 K0 \& k8 Z7 i) F: h( Q DISPATCH_METHOD,
* Z' ]0 Q) p; O; |' N &dp,
2 _% k: H" h2 [/ K2 [5 k3 |& j% N NULL,: c2 w0 i' L! @1 M! h3 Z" N+ p8 h, e
&ei,
; |1 w4 o# ^" s% x* } &uiErr);
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# }! Z2 k( ^; r5 h- _' o( U SysFreeString(topicStr);
9 Z- _5 Y. C5 G5 u/ {: b" q3 X% ] SysFreeString(itemStr);9 C# {9 B/ J+ p0 i: ^- E- \
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???
$ ?& I% q+ E6 w( q, X: w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
* W9 O @& G; [// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
: o: S: |- g) w' A: I5 ]& B// type flag to indicate the fact that this variant holds a BSTR. Place the( m# ?5 F3 \* x6 {+ a
// BSTR into the variant structure.
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# F ]* }& L) C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( x& d, ~3 \, C. R. ], J
& M. I/ ?' g& M+ A& a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& D2 z! I9 q% j m, w& U: P
VariantInit(&requestVariant[0]);
: Q# n# v/ k8 u9 c! q, w: @ requestVariant[0].vt = VT_BSTR;
) G7 U" x6 s9 ]. w4 U9 \+ u requestVariant[0].bstrVal = itemStr;: s7 p) }) b' x
# ^3 T' v% @5 g topicStr = SysAllocString((WCHAR *) L"system");6 k3 J* j8 ]+ u) M5 h
VariantInit(&requestVariant[1]);
' d/ y5 R6 i3 w requestVariant[1].vt = VT_BSTR;) J; \& {3 Y- N% }6 D" R$ s& r4 X
requestVariant[1].bstrVal = topicStr;6 }7 i3 k/ `# {7 E0 |
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// Set the DISPPARAMS structure that holds the variant.. f+ @+ K/ u+ ?9 x4 j, `
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dp2.rgvarg = requestVariant; u2 u+ I+ o- i3 j" L$ ~- n, F( J
dp2.cArgs = 2;- Z0 G1 ]% ~# e' X9 J
dp2.rgdispidNamedArgs = NULL;
1 m$ h* s; c" V& J3 ^ dp2.cNamedArgs = 0;: z8 v3 F. y9 X1 P) i
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var.vt = VT_EMPTY;
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7 ?+ V/ |, k2 M6 R( a ^// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(" B+ W0 U) G$ @* T ~: J8 O a
requestID,8 a/ `) ?8 o7 e1 {% x) T
IID_NULL,
: j% q/ q/ H6 \ LOCALE_SYSTEM_DEFAULT,
, t( ~; l* E7 A! B DISPATCH_METHOD,
: {0 E* }- X% s$ e6 b: p &dp2," T+ w: X& g9 X$ P6 _
&var,! {+ b& R: j. h! J- j% k' `
&ei,
* \8 P A: i" f- Z$ a- w! D% B &uiErr);
* [3 e, P* `1 {
" C8 i$ }! d% A0 c7 X+ U SysFreeString(topicStr);( g$ l" |9 Q% N: U: h7 E2 z# k
SysFreeString(itemStr);
& I7 \" q t- H' n7 k请问该程序是获得extend里面的哪个值?# D- g+ b/ i( d! i' {+ @
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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