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:; Z, q, i: \5 g9 Z- U" R/ K+ q
Name = (WCHAR *) L"Poke";# d4 N& E- ]0 ?3 [- W, U
/ B; K y- f4 B- W hr = m_pDisp->GetIDsOfNames ($ s1 T3 y1 Y9 R3 `
IID_NULL, // reserved: E# d( [1 ]( Z. d) ~& ~: N
&Name, // Array of names to get IDs for
& d5 a" S# v5 A( F/ W& I/ L* z! Z 1, // # of names in the array/ j1 X7 i! o2 f; r' N& D( u, |
LOCALE_SYSTEM_DEFAULT, // System locale
+ W, e% ^# W2 z9 H1 i1 J &pokeID); // Array of IDs to fill on output% x$ S% Q5 \ M {- }. |' ~
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if (hr)! B& o* H" \# r" v, {
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MessageBox ("Get Poke Unsuccessful");
. M$ E& J2 F7 ]- v0 k" }0 | return;
/ x. V' Q3 i2 N. t8 u; v: f1 W5 g }$ N% }0 e* }7 r; h1 `+ a3 b
5 \2 S1 M$ d: V4 } /**************************传递数据给extend**************************************/- t9 v2 e4 j+ ?( E6 y( b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, O7 u9 x8 }, U/ W7 D3 K
" n& G$ w5 E% E$ N valueStr = SysAllocString((WCHAR *) L"1232");
& R' V U# C; N8 [3 X$ t% z VariantInit(&pokeVariant[0]); 5 s* X1 b ~. N2 Y. W' U9 e
pokeVariant[0].vt = VT_BSTR;# v" n! Y# c2 c3 H: h5 i
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 Q3 B% L c# E5 V7 h
VariantInit(&pokeVariant[1]); * }0 _+ ?& n" j. W, t
pokeVariant[1].vt = VT_BSTR;& N' Q- b7 F( N( x* P9 ~) a
pokeVariant[1].bstrVal = itemStr;
# n. Q, r' A$ Y3 b; e- c3 Y0 ? 5 x2 e/ w) n/ J, q
topicStr = SysAllocString((WCHAR *) L"system");
7 G! ~$ J3 t+ N$ E/ K7 D- c/ ? VariantInit(&pokeVariant[2]);
% Q, K' O7 e: H; g' @% Q pokeVariant[2].vt = VT_BSTR;7 W. e4 |/ A# a+ ~
pokeVariant[2].bstrVal = topicStr;
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" N2 Y. g! B' E, C9 | // Set the DISPPARAMS structure that holds the variant.
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* g$ {, ]; H2 d7 B. ~! }; W dp.rgvarg = pokeVariant;
% A" |1 U! D1 B- E' |# @$ @ dp.cArgs = 3;
: T' t/ {3 w$ `4 e( n1 r' o1 i dp.rgdispidNamedArgs = NULL;! g- f" `0 F, c$ }, m8 S
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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. o0 ^% {& t2 E! n/ n1 o hr = m_pDisp->Invoke(
# k8 l+ Z6 K& ~' J1 x t- l1 \ pokeID,
# @9 _, h e6 M; I; d) X1 ? IID_NULL,
% U, f5 G0 ~) H8 j4 B. P3 L LOCALE_SYSTEM_DEFAULT,) {, c6 t- S# }) [5 c! |0 n1 U
DISPATCH_METHOD,: y- y* b2 E, B6 U7 P* [
&dp, ~4 { F9 i2 ^4 S, s! E! H
NULL,
1 \# i' N# F* B& R &ei,9 |6 R$ O6 s. M3 e4 p; V G
&uiErr);6 k. H7 E* ~4 I# ~0 Y9 t
0 E. j" ^. k8 `5 S% w0 D' u SysFreeString(topicStr);/ q( g5 @# ?7 Z
SysFreeString(itemStr);
9 Z( Q1 N$ l" x B7 ~ SysFreeString(valueStr);$ T4 i9 Z) [+ m4 i+ n
6 r" U) u+ C+ E o' Z0 S
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???) j7 Y) o5 `/ E8 Z
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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, d6 k/ B) j$ g, l; r! s# ^3 D 2.这是request的程序8 U- T( H) g! V: M% P# F' E
// Request a value from Extend
. l3 m* X$ ~* T2 i //
" \; n" W, l9 q# E0 c8 \ // Initialize the variant that will hold the BSTR. Set the variant's: j6 V, N; w& L6 z' M
// type flag to indicate the fact that this variant holds a BSTR. Place the4 }2 U; F9 O1 ]" _% J
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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& m: C& w% N* y; ~9 }6 p3 a0 e% s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
0 \& j- n% v4 R3 w0 M% l5 _ VariantInit(&requestVariant[0]); 3 S" z" q Y! x: M8 ^' v
requestVariant[0].vt = VT_BSTR;
* y3 p! _* Q7 i2 |: k9 V T; l requestVariant[0].bstrVal = itemStr;; Q1 e s( d4 }# v1 p {4 d7 H4 @; }
& e4 }6 r& c& ] topicStr = SysAllocString((WCHAR *) L"system");* ~) j# ]4 ^& x4 V A0 v
VariantInit(&requestVariant[1]); 7 T. j' P; h* g- o$ h7 {1 `
requestVariant[1].vt = VT_BSTR;
! C3 g' R1 z, g7 N$ f2 | requestVariant[1].bstrVal = topicStr;
" u( W" T8 e$ e) H1 R# P' Y
( T: d+ S4 r3 P3 r& O z, P // Set the DISPPARAMS structure that holds the variant.
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# U: Y* o3 g7 i1 f& F6 z+ x dp2.rgvarg = requestVariant;+ }& I1 h) L) H
dp2.cArgs = 2;
7 D6 ~3 [; h" C" `8 @ dp2.rgdispidNamedArgs = NULL;8 M; J1 Y, x4 q- X7 E
dp2.cNamedArgs = 0;- L& X: o# A$ J0 l
+ b7 ]% @% g7 l1 p( z# U var.vt = VT_EMPTY;6 ~3 R# ~; h2 ~" q: ?
$ a+ d9 E2 H% ]8 T9 M // Call IDispatch::Invoke()+ T' m" _6 e" h& w* ^* H) E7 x
; R% T! G7 N; k. Q9 r* L hr = m_pDisp->Invoke(' H2 K- F6 A. d+ H% p! q
requestID,, ]; ]+ ?3 e4 T* p& K( y% d+ w
IID_NULL,- n; i- i# t4 B! K+ V
LOCALE_SYSTEM_DEFAULT,
9 B( V) W( Q, g+ N DISPATCH_METHOD,
0 c6 e9 C- R8 D &dp2,4 P6 Z3 E9 t; I
&var,, y/ C3 b7 p$ N T% C
&ei,
0 Y+ i" w, p; D* P) Q/ X &uiErr);# Y+ l8 S% v& q# G5 a9 w* M. _9 K/ Q
% s B# \( N, ] Y SysFreeString(topicStr);
8 P- I% i/ c2 Z. A- l I! V SysFreeString(itemStr);* e3 s! e9 @( J- W M1 ^
请问该程序是获得extend里面的哪个值?' o2 L# p+ c9 d1 o) g3 C
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