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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：
0 n; P* w, S0 x2 r5 e& zName = (WCHAR *) L"Poke";# k! y" d, g9 _9 v% `) g/ @0 K6 L
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hr = m_pDisp->GetIDsOfNames (
/ l* P) G8 N% c9 V9 f9 z3 e5 j IID_NULL, // reserved) x0 q/ h! q' T! ?2 M+ Y
&Name, // Array of names to get IDs for7 P. B" v L3 y9 M- U D$ k
1, // # of names in the array0 P9 Y) H' \ f$ X& ?; p6 `& [2 @
LOCALE_SYSTEM_DEFAULT, // System locale
' x+ r- r# i( l! U& I% O( }1 T &pokeID); // Array of IDs to fill on output
- m! h3 N7 t( ^; D) v6 m% \ 4 D p. Q8 {, t$ w$ p) b- _
if (hr)& g$ x1 i* o, [( B7 I) D2 f
{' F8 L7 W0 M" |6 \
MessageBox ("Get Poke Unsuccessful");
* x) x! ]0 d7 n5 i return;1 H# `- e5 b! Y+ h/ f' x [
}
- ?! q# b& B1 K3 V: Y/ v* p# k
/ ?- |! i3 F+ W/**************************传递数据给extend**************************************/
" ]) C( b/ S1 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
% V- ^7 O2 w( S# Q/ m, `& i Q , w" i2 r. O, Q; r* [9 A1 h
valueStr = SysAllocString((WCHAR *) L"1232");
( e$ C) n% p; j0 | VariantInit(&pokeVariant[0]); ) o& U6 ]8 U) h% L) p
pokeVariant[0].vt = VT_BSTR;% p. s1 u" j: ]! |$ j* F+ ?
pokeVariant[0].bstrVal = valueStr;
( Y" d0 ~" c) ~0 C+ \7 [1 B
- A3 r1 [$ Q' f; E/ o5 [' n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
6 r" F4 M0 W% S" _6 a( l VariantInit(&pokeVariant[1]); " j; E9 h& X+ K8 p4 m
pokeVariant[1].vt = VT_BSTR;
/ l2 }$ I: Z" Z z/ e pokeVariant[1].bstrVal = itemStr;
; ^# S' T" x- h& w. v, p
) e. ?+ h3 f$ _$ K$ p# H topicStr = SysAllocString((WCHAR *) L"system");) ]# C# p( S/ M9 A+ t3 h1 ]
VariantInit(&pokeVariant[2]); / g, |- K3 U3 n6 ?9 ^
pokeVariant[2].vt = VT_BSTR;: b' z/ _+ l1 {% N
pokeVariant[2].bstrVal = topicStr;
. R: p5 p: Q" z5 ?( U- M
1 ^5 K3 J9 K: d// Set the DISPPARAMS structure that holds the variant.5 N0 K% w% s, i) G$ k
5 O& V& K" m8 P( {& ^1 ]2 _: X0 D' U) K dp.rgvarg = pokeVariant;
4 f4 k! A7 K0 E' f' V" b- |9 d. i dp.cArgs = 3;
8 ]8 K' Q3 p3 l) X" y) x4 x dp.rgdispidNamedArgs = NULL;% z) G' `7 I8 D9 @+ j2 R2 _. ~" X
dp.cNamedArgs = 0;
+ G) N* I$ @' p
3 l+ P. ]+ p! \1 R& r5 d// Call IDispatch::Invoke()" i- c9 {2 P( L) R
$ ?) I9 g e1 s6 G! l, @" | hr = m_pDisp->Invoke() _" \5 y$ B! z# U
pokeID,% ^; U9 _, O4 ^3 _
IID_NULL,& g; ~% O8 B S5 _: h& ? C
LOCALE_SYSTEM_DEFAULT,: R; C9 K& c! H/ X. e
DISPATCH_METHOD,
; r- `: j( {: |. r& y2 N" }' { &dp,1 G: { [# v4 ?4 t3 e- O! B
NULL,* _, O0 O3 A4 J& T, \) a: c
&ei,
: H; C1 k1 {/ {* W &uiErr);. ^2 {$ X# o& u* C: X
* R1 t9 k/ X# w' s g& C8 X N
SysFreeString(topicStr);0 F7 y- ~- N7 k. A& H
SysFreeString(itemStr);. c4 b ?, w. {0 C6 `* {
SysFreeString(valueStr);
! i' n& ?9 D, v7 Z* ?
" `: b4 P; q: `+ T" z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& ~- t1 d5 ^' t D1 P* |
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？？？？3 d5 Q, `. W6 s8 t2 g
0 X9 y! K7 k- E5 _9 Z% e, ~) I b7 p) i4 k3 m# W0 w m) w
2.这是request的程序
7 h0 n$ D3 D! h5 a1 R I% C* d8 X// Request a value from Extend
" e @$ |/ j0 a6 ~$ E* z8 x//8 }# _* i4 f6 c2 f: A0 w
// Initialize the variant that will hold the BSTR. Set the variant's) x* Y3 Z/ Y& T! G# ^8 _# T
// type flag to indicate the fact that this variant holds a BSTR. Place the
9 o7 N3 ?& D/ E4 o; k; D% r// BSTR into the variant structure.: e" h2 ]! e* `
. U0 T5 c2 R9 E3 ?) Y9 T; q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) u9 W4 T+ O5 i VariantInit(&requestVariant[0]);
. G; D. {# J2 F2 W$ \, T# E( ~ requestVariant[0].vt = VT_BSTR;
, {$ t& V5 {* Y$ N& V1 q4 U requestVariant[0].bstrVal = itemStr;3 z* @2 R: H+ P) \, A
+ w' H& f3 [- h8 D5 S7 ~- d topicStr = SysAllocString((WCHAR *) L"system");
5 V& h2 z& {9 r0 H# Z' p7 h5 Y VariantInit(&requestVariant[1]);
- d8 v1 L P1 W: Y& [, l! o requestVariant[1].vt = VT_BSTR;
5 H7 Y& u" E2 M1 i- l requestVariant[1].bstrVal = topicStr;6 Y% _7 l: N5 C, S/ G
- P$ q) J$ V, E// Set the DISPPARAMS structure that holds the variant.
2 P2 F0 M/ v2 w+ ]/ q+ _' x2 B+ k
dp2.rgvarg = requestVariant;2 S, G: J- W% C& p+ \: c$ E
dp2.cArgs = 2;
5 C( l" F5 Z4 G" C; E dp2.rgdispidNamedArgs = NULL;
+ o) F1 T5 t' y: b" ? dp2.cNamedArgs = 0;
- ` P6 I2 ]$ ~6 u; @; M( P7 R) t8 n5 a# O0 k' W
var.vt = VT_EMPTY;
4 X& j; H# l) S
# i/ A: ^% F4 q+ I' \// Call IDispatch::Invoke(). T/ |" ^1 L" D* o4 c l9 T2 D
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hr = m_pDisp->Invoke( j) m! _2 z. Z8 P
requestID,4 s1 \) ?; X D( C
IID_NULL,
) m p, B$ I: d. y7 M# T, s LOCALE_SYSTEM_DEFAULT,
5 P" n, P9 y( r9 b DISPATCH_METHOD,
/ Z, G$ A' g# H6 x% X &dp2,
9 a8 H1 o: v) Y* x' b &var,
+ o5 t% h( l: \6 H5 W' C &ei,- W/ e6 X* H* Q' H
&uiErr);
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SysFreeString(topicStr);
5 ~8 e- g* ~ i L SysFreeString(itemStr);
0 l" p; |: B o$ q, s- l: @请问该程序是获得extend里面的哪个值？
s" o7 h, y& {) E" F/ P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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发表于 2008-11-25 19:37:03
