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:
; w2 e0 K/ Z [, ?* ^6 n Name = (WCHAR *) L"Poke";
7 c2 W6 x' Z% X
1 W% Q6 @' L. y/ R. {' Y# O hr = m_pDisp->GetIDsOfNames (
1 C& L* _( d* t) z IID_NULL, // reserved
0 T" U- t* k2 ~6 D9 b3 B &Name, // Array of names to get IDs for
; w8 M7 b7 C3 s G9 K 1, // # of names in the array
- l: V6 n- t, ]6 U3 v4 ^( ^ LOCALE_SYSTEM_DEFAULT, // System locale& f: P( y* n& h, { B
&pokeID); // Array of IDs to fill on output
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+ f; C7 H* Q$ O6 T6 u q0 [ if (hr)
- m4 C6 Y4 _) M9 W! p {; `/ k( j, G# e
MessageBox ("Get Poke Unsuccessful");
9 j1 r, r* R. c+ P return;
s) |, V, f# W! v, g0 F2 ? }
, A4 i3 H5 @. @; g2 @8 O8 W
: p* `' _% a& C2 d1 e /**************************传递数据给extend**************************************/# ^& J( L, N. E. b( F% m) W) ~
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ B& ~1 H0 ~% J% r$ Y, x2 ~6 {
8 y4 u0 {/ ?0 x. d valueStr = SysAllocString((WCHAR *) L"1232");# V8 q8 ^6 Q. r, @! |0 G3 O) H( f
VariantInit(&pokeVariant[0]);
. I' O& ~4 N: A$ ?' ?' V9 b pokeVariant[0].vt = VT_BSTR;9 W1 \, H/ E% v; R4 a3 X
pokeVariant[0].bstrVal = valueStr;( R. x& W( }0 r9 M5 p" u6 m4 N4 j- J
% _8 r3 D# P- X, E; n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( N# S$ K& {3 S! j. _' D) P VariantInit(&pokeVariant[1]); 3 F" X) [7 n) R% K- W; L0 e# g5 X) g
pokeVariant[1].vt = VT_BSTR;
4 ~ l- g/ A1 k5 f" q/ r0 x$ o pokeVariant[1].bstrVal = itemStr;6 d" A7 j- S) r B1 b
/ e; k, d/ ^/ U: T, P; x1 |1 b% m topicStr = SysAllocString((WCHAR *) L"system");7 p7 f; ?: R2 a2 e: s$ ^# d" M$ r
VariantInit(&pokeVariant[2]);
6 Z# I) N& u2 o; P& e7 v pokeVariant[2].vt = VT_BSTR;/ z, O& R1 j& e3 q2 M {7 b
pokeVariant[2].bstrVal = topicStr;" T2 c* x# w% O5 {; J8 ^
4 x, _4 p9 O; n( H5 @6 T8 g. h // Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
+ C; \* [ {0 N- Q9 a3 p9 O- { dp.cArgs = 3;/ _( p3 s/ x `1 u# L" B
dp.rgdispidNamedArgs = NULL;
8 a4 O+ o* ?' A& h d5 V8 C5 x dp.cNamedArgs = 0;! I; [$ B0 t; o) n8 A
- A0 `, H7 |1 u% C( B7 x // Call IDispatch::Invoke()) b3 d7 w4 w2 N0 w, g* q
0 s+ |; Y! {1 B% a9 b hr = m_pDisp->Invoke(
+ `, N( a# r# ^- H5 m0 K) @ pokeID,
7 ~0 I5 X* s% P$ A IID_NULL,
2 y$ \" D: o5 S4 j! @ X LOCALE_SYSTEM_DEFAULT,
, O1 ~8 W/ P1 N3 c8 V& t) Q DISPATCH_METHOD,
1 J0 o1 g7 w: x! [4 W* { &dp,
9 a' a; ?! n8 Y$ Z- p! R: h$ ^ NULL,
* P1 N& H' @- I* w &ei,
~. Z" U& f( @/ B &uiErr);/ r5 o. t D8 {0 \0 }
" h& v4 S# f+ U M
SysFreeString(topicStr);
) ~4 s) U2 y0 Y. X2 x SysFreeString(itemStr);
, W8 p) q" k9 C. e- s- k SysFreeString(valueStr);
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1 s+ r( m% s+ a! e: B 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???
3 B1 {. D$ K* \) M0 O 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????
. _: W4 B' K0 U7 B/ F% S3 D: \7 D) Z % D/ d0 V+ e/ c, p
7 T9 q }5 z3 m 2.这是request的程序
6 \+ g% q# d0 n" @ // Request a value from Extend* ]2 [; W4 e9 U( a B
//
3 ~; a& I2 c5 k( S. K // Initialize the variant that will hold the BSTR. Set the variant's
4 k. d- Y( K- `) Z4 E // type flag to indicate the fact that this variant holds a BSTR. Place the
k7 v8 E" C+ x% _" b // BSTR into the variant structure.& }) `* R$ y; F, Y
7 _/ o5 t( J( m6 ?' X) j ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 v2 v1 k# E- R1 q8 B
1 d9 E! I% x4 M9 V& W. ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( P \- b9 \+ c) } VariantInit(&requestVariant[0]);
# B$ H1 s4 @' S. j0 S! {: ^0 [( w9 X requestVariant[0].vt = VT_BSTR;
! w/ B+ r5 y! A' \7 } D9 Z requestVariant[0].bstrVal = itemStr;
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' }6 K! O8 \! T; Y( _" w topicStr = SysAllocString((WCHAR *) L"system");1 s+ O+ o1 w& i3 f$ A! v, s. S
VariantInit(&requestVariant[1]); ( N" G/ Q8 F* [/ }7 ~$ m
requestVariant[1].vt = VT_BSTR;' M6 z' m8 ?3 K; \" k( u' a
requestVariant[1].bstrVal = topicStr;, m' D' ]% q* t0 E& ~7 M/ ~3 A9 g
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// Set the DISPPARAMS structure that holds the variant.0 n& v2 s- w7 V5 K5 r- m
2 H& S5 F" K& H: x dp2.rgvarg = requestVariant;
) M2 l. u* r x: k5 }* c+ z e p0 G dp2.cArgs = 2;
# d- K4 K1 p4 H9 E8 M/ O dp2.rgdispidNamedArgs = NULL;
+ u0 ]; \' B7 t ^ dp2.cNamedArgs = 0;( ^7 [9 F7 l0 J6 R
# }: H: l7 l4 L" o/ X( W( i
var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
$ a7 [8 X8 }3 A requestID,7 ]" z& K, P& l2 u! T) E! L" ]; t
IID_NULL,
2 p+ s9 P5 `) i" @# p' \- J6 @ LOCALE_SYSTEM_DEFAULT,
5 x! w0 ~/ g% L o A4 r6 u A DISPATCH_METHOD,
* v& Q/ A# b8 m" P0 b1 Q7 { &dp2,
% {. J$ Q5 W7 z. @ &var,
" R1 z" v# T( v: h &ei,
1 X$ p* G8 B$ j- p2 p1 x& R# d &uiErr);* u+ @* D* g" I5 f. p$ C
2 |# v( ~# l( v. j2 f! z: a# Z+ K8 Q SysFreeString(topicStr);+ O$ t& ?/ o$ E& Y
SysFreeString(itemStr);
. V( l9 F+ V' \! h2 S' R* F 请问该程序是获得extend里面的哪个值?
8 w& g8 Z+ O) ^9 Y 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