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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 F$ s+ a/ g7 Y5 Z4 t' _
Name = (WCHAR *) L"Poke";
M8 k* ^5 J) I) y+ R' B9 f 3 e. A1 t9 z5 m4 L( K: B# p: }
hr = m_pDisp->GetIDsOfNames (
! ^9 ?- p& M5 B* `; @ IID_NULL, // reserved
3 W$ |3 b( }. _! j &Name, // Array of names to get IDs for
; @+ ]/ s, q$ {/ B2 K( F 1, // # of names in the array
5 O3 x! H' z) V& Q+ I) I LOCALE_SYSTEM_DEFAULT, // System locale. f; E {1 o" M& X
&pokeID); // Array of IDs to fill on output& N. N W O* j9 p3 u
/ d3 G4 S7 o! e& D+ E if (hr)
& l: w# [8 w: c7 N2 _4 R$ ~ {
' N7 z$ X0 T+ k* F MessageBox ("Get Poke Unsuccessful");
! J" Y' C' k, J! u T return;, ~4 S0 p# c% j* y! H
}
1 U) q' a- {0 \& R
+ n' G4 S8 X9 {% W( P; b/**************************传递数据给extend**************************************/
0 J; W0 S) `( ^; v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: x6 T0 R# Q2 T. U+ l2 X A/ K, T
4 K3 U7 M! c2 \; e* @
valueStr = SysAllocString((WCHAR *) L"1232");9 \' e; r7 M6 F5 O
VariantInit(&pokeVariant[0]);
4 L) Q; `2 C$ o1 G c* r pokeVariant[0].vt = VT_BSTR;: k4 l" R. U9 B( {
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 H/ q H- T' @) H$ e2 b l0 X# o+ y) O
VariantInit(&pokeVariant[1]);
8 W" y7 u- K% r% x- g2 }/ T pokeVariant[1].vt = VT_BSTR;
* s8 c+ `8 ]% D) U% g pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");8 ?5 b, h; v- |7 ~$ m' U
VariantInit(&pokeVariant[2]); 4 c0 y& `" v' M$ D E
pokeVariant[2].vt = VT_BSTR;% y6 x: k" x$ U% M( q
pokeVariant[2].bstrVal = topicStr;
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: @ H( W. `/ J+ T; X& B// Set the DISPPARAMS structure that holds the variant.. t0 b& k/ o7 M
8 \/ N: S0 Z7 b2 K9 S
dp.rgvarg = pokeVariant;
1 w& o, U% R+ u, k! k! G dp.cArgs = 3;, ~- r: P- x( [# @5 N
dp.rgdispidNamedArgs = NULL;, J8 q: B$ e+ D" ~( B
dp.cNamedArgs = 0;: G4 v; J) K% ]3 J2 |
* [7 K+ N2 F& e N* ~! _
// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(9 O; L+ e# u0 M$ [! h
pokeID,
6 d! O5 y; R6 M+ r m4 O IID_NULL,
# f! ?/ }! a/ ?( F( c( l t LOCALE_SYSTEM_DEFAULT,
! _( V& T4 R# C* Y DISPATCH_METHOD,
- ^9 R9 l8 g" X &dp,
2 T! h' O) W0 N! u( H( A, p0 z NULL,/ J, ?9 O# ^' C: l
&ei,/ D8 D2 S8 \% Z% I+ ]6 D2 R
&uiErr);
3 o" q. D3 Q0 |
- i1 N( O2 ^* F0 A SysFreeString(topicStr);
/ j5 L) @6 o, ~ SysFreeString(itemStr);
5 G) y0 j) j/ B. D* _6 U( v SysFreeString(valueStr);
. k; F& T1 Y0 x5 ]) u) H- C# j# I: G4 v' |& P
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???
. W, k6 i/ C& l7 a# U$ ` }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????# Z5 }6 o# P$ V
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3 X% n* t; `! ~+ ~* W
2.这是request的程序0 q% i0 h" a* C# Q/ j) T$ C
// Request a value from Extend3 |, X' f u3 u3 j% P
//( `7 _8 C1 y4 W5 R( G/ I
// Initialize the variant that will hold the BSTR. Set the variant's2 ?" R0 ~* Z3 }
// type flag to indicate the fact that this variant holds a BSTR. Place the
; @% {4 D' k$ ?( t// BSTR into the variant structure.: x! S/ f. c: C" S: r
. x, {& X5 H9 u& |. ~
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 @6 }' s# Y q
0 R8 Q8 |. N' p) Z' d+ @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% V h N" I7 R4 N; D# a/ K VariantInit(&requestVariant[0]); ) w5 L# F. l0 h, N& S. }; z& ^
requestVariant[0].vt = VT_BSTR;4 ^- E. Z9 U- e: l
requestVariant[0].bstrVal = itemStr;' B% O, I5 r# x3 R/ K7 b
! w4 U9 X2 c" \2 v
topicStr = SysAllocString((WCHAR *) L"system");# }9 C. J& T/ z
VariantInit(&requestVariant[1]);
: ?+ z, Y2 `& f" i9 U1 M5 h requestVariant[1].vt = VT_BSTR;$ H2 v( O# B* ?. j) O, w! a
requestVariant[1].bstrVal = topicStr;
6 \. F6 c5 V7 W3 Q y: k3 N* @. ]& i
// Set the DISPPARAMS structure that holds the variant.
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& o/ }) p! G) Y0 a/ ]* {! a+ [ dp2.rgvarg = requestVariant;
7 Q w) M. U, N+ |5 \# c8 p dp2.cArgs = 2;
" l) [( [5 h0 n! Z1 g/ D6 A9 t dp2.rgdispidNamedArgs = NULL;
, L# \$ E8 a7 J# q, q' l' A dp2.cNamedArgs = 0;
8 x! _8 O* Y+ I8 \ d5 r; H
. V* E& [! v, s7 V o$ S var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()& N: O# Z9 t7 [9 w9 B! ?$ _5 Z
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hr = m_pDisp->Invoke(5 A% ?8 e1 @* w3 m. h
requestID,7 G' Z; F1 G1 {5 p2 f8 o9 F
IID_NULL,0 s" ]. {7 l) E( `5 W' W
LOCALE_SYSTEM_DEFAULT,
: R/ y; [3 m! R- ` DISPATCH_METHOD,
. E( w% @- w' g @0 s2 M &dp2,
# Q9 H/ y6 C" R! o" [! ~ &var,
* e7 ]( A% U" m" [) F+ r &ei,
% i. k3 }4 ?) Z) s, F( | &uiErr);8 s# P$ i( W; n
1 w" P# k, F& f1 [ SysFreeString(topicStr);
0 ^8 X0 U& D& `' e SysFreeString(itemStr);5 ^+ R& b: \+ F4 Y
请问该程序是获得extend里面的哪个值?
( O$ x' S. z5 Q! f( \! O$ `4 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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