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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:; R( T1 k3 ^3 O( c1 y
Name = (WCHAR *) L"Poke"; O4 z% J* q; O
+ L5 d/ ^- C, c; [ hr = m_pDisp->GetIDsOfNames (
7 A8 J! v# X) a IID_NULL, // reserved4 e% Z0 M. e$ c# i* T& y* V
&Name, // Array of names to get IDs for7 L; D7 s; T' J3 Z- |, x7 ]0 \
1, // # of names in the array
* A/ W8 L5 q( ~" ~" _ @ LOCALE_SYSTEM_DEFAULT, // System locale
) B9 r, X+ l9 D1 a- I. ^/ B$ K# K &pokeID); // Array of IDs to fill on output# r) k6 x( {" C0 |% W U( P H
# j+ |+ q4 q6 ^9 y1 v3 U0 _
if (hr)
% f- Z2 I8 t( l# R; S ?1 r; a {3 M6 Z" ~! s" _9 |
MessageBox ("Get Poke Unsuccessful");
" V8 j5 X3 Z1 b* y. l return;0 _$ P! R7 l- k W- H: m7 s8 ^
}
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$ L2 L- H6 x# f- G( T" h2 \) b/**************************传递数据给extend**************************************/+ r5 B7 e8 H1 H2 [ y1 C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
m' k) ]% K2 W( f! W; ^ VariantInit(&pokeVariant[0]);
5 m1 p$ j9 h' o pokeVariant[0].vt = VT_BSTR;
7 a% z- r' x6 `. l2 l1 o B% }( e pokeVariant[0].bstrVal = valueStr;
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. U, b! m% l' S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# c7 c2 Q3 w, E4 \ VariantInit(&pokeVariant[1]); ' J+ Z! q- h! M9 n( A: j
pokeVariant[1].vt = VT_BSTR;
. `! N; f h* N* ~ pokeVariant[1].bstrVal = itemStr;+ W. J1 g* U" H' u
$ y5 D7 E, E& h1 z; G5 c topicStr = SysAllocString((WCHAR *) L"system");
7 o0 L6 E2 s$ ^! R VariantInit(&pokeVariant[2]);
; c4 F4 L+ h0 L( h, k pokeVariant[2].vt = VT_BSTR;' a0 h% D9 o+ `7 @ B/ {
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.- E2 B& p! e6 t- r
! n( k6 Q9 ?) _% M0 G; k0 X1 f0 m dp.rgvarg = pokeVariant;* j. ^% T6 E- D! \, Z: ]6 T$ I, ]
dp.cArgs = 3;; E6 Y) p m2 m' S; Y; P! n
dp.rgdispidNamedArgs = NULL;
' _* h, P+ _2 F dp.cNamedArgs = 0;
W/ u" n6 Q' k* c# o9 i; K2 j: ]; z0 ?( C
// Call IDispatch::Invoke()
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% p. T+ Z1 }& K1 Q4 z7 e hr = m_pDisp->Invoke(7 y: U. Y' H1 \4 H
pokeID,
1 G( H, i0 I- Y0 e6 z6 _ IID_NULL,7 V( y9 L( R: s7 L
LOCALE_SYSTEM_DEFAULT,4 d& ~+ i \8 O6 [! |; L
DISPATCH_METHOD,
- y" C% `- y. v, l$ g: ?1 y. U &dp,2 ~+ ~2 S% B# }9 k/ v
NULL,. b; N- Z5 t* j: @6 I4 o
&ei,
" F# Y+ X1 \& \$ r8 | B &uiErr);
4 }! r4 J% m& {1 l& G& j% T/ Q9 y- l; a' }3 \5 ^
SysFreeString(topicStr);$ p1 c7 l0 E$ F! k- ]
SysFreeString(itemStr);4 r, P* W; n3 G9 _% i
SysFreeString(valueStr);& D4 C6 w9 }) s6 u+ R( X# [8 k
/ o# c9 z- ]: r% y9 w$ }" S$ T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???% P1 n% m/ Y# l
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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$ F; h6 O3 c1 ]$ W& O. P. K2 X) w, X$ q0 H; J5 y* t7 q; B7 `
2.这是request的程序
3 \" s1 K- h2 x, H& N4 s9 O+ G1 _( \// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's9 p; v( q$ o: t g6 S/ b' J$ E7 s. p
// type flag to indicate the fact that this variant holds a BSTR. Place the( j- X/ s& `* n4 a
// BSTR into the variant structure.) u4 Y4 E6 R! f) o; w7 s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% F2 d4 `. N$ ~, S) i VariantInit(&requestVariant[0]); ! m- P0 _# Y6 l- @/ M9 R& h( u
requestVariant[0].vt = VT_BSTR;* h+ h" S% H6 E
requestVariant[0].bstrVal = itemStr;9 [- D w* L8 u& w
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topicStr = SysAllocString((WCHAR *) L"system");0 M* c3 k7 J2 u
VariantInit(&requestVariant[1]); ! |8 g& B* y j. l1 L, z/ J5 H
requestVariant[1].vt = VT_BSTR;
) |) z' g) l- A7 H1 O requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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" p- s/ }( D) ? dp2.rgvarg = requestVariant;7 ]# \8 Q) b; a9 ~8 r& A
dp2.cArgs = 2;- l- M! p; P3 w
dp2.rgdispidNamedArgs = NULL;8 ~( r% X( p% M3 X
dp2.cNamedArgs = 0;
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0 s+ l) n3 y% R; d. v: x/ s var.vt = VT_EMPTY;4 M! Z5 s! v6 Z( a
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
q4 |" w6 S' j5 A4 X+ G requestID,
- Z: [2 t. U2 A. ?5 b IID_NULL,$ N' q7 c; F2 [- l- G. V$ K, v8 ~3 T
LOCALE_SYSTEM_DEFAULT,0 |5 t# e% K" k& ?: p' j+ t) n
DISPATCH_METHOD,; U4 K j+ ^9 B6 n! f
&dp2,3 t3 c! z# A- u. V- L- \$ h
&var,
: n5 `- k4 h+ Z- Z &ei,% r- I- ~" d$ {* _. ]: E- o( Q4 Y
&uiErr);
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4 ~( U7 S7 [# b. P- Z% Q SysFreeString(topicStr);6 r" S4 w. N1 L# c* K, j
SysFreeString(itemStr);8 S* g( z3 @7 Z U$ L9 |
请问该程序是获得extend里面的哪个值?9 a! B/ ^! o: B1 }. \+ [ q8 p. F
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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