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:
/ d/ [5 ^6 K* t. m' O+ ^$ M! p Name = (WCHAR *) L"Poke";3 p5 H- {9 e7 }( U2 Y# @
# N$ d9 y# J# y hr = m_pDisp->GetIDsOfNames (
' `7 _+ G' k% F1 ?- i IID_NULL, // reserved, G4 o( `5 |! O8 f; ?* L( e+ A
&Name, // Array of names to get IDs for0 ~) L" D1 w0 i/ v( T, x& U
1, // # of names in the array
7 p& g. P- s' @* {4 R LOCALE_SYSTEM_DEFAULT, // System locale8 f8 d+ F# N( T" f A! Q5 _
&pokeID); // Array of IDs to fill on output4 u4 v# m7 {+ P4 d
* n! ?# G- A. G
if (hr)! e5 s9 l# Y& S$ ~. v4 r
{: t' J! [, t6 K& |( G! o
MessageBox ("Get Poke Unsuccessful");
" k& C) {+ {/ R1 s! D8 e$ ] return;1 J9 L' d& A' F) I# |, i" r( q
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/**************************传递数据给extend**************************************/1 _8 m: Q. L6 c, P6 f/ s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# e7 R, G4 i5 w3 c) t( F- b
1 i% L) q" g G/ r8 ?& z
valueStr = SysAllocString((WCHAR *) L"1232");; T o8 ^6 g, d' I- \0 G3 J8 T7 S
VariantInit(&pokeVariant[0]); ; m, r- }$ G* X
pokeVariant[0].vt = VT_BSTR;
( W' C' u, o1 T pokeVariant[0].bstrVal = valueStr;6 C8 @" M6 L7 E6 c* j% E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& Q* I8 j! ~; N2 @+ M$ W7 O
VariantInit(&pokeVariant[1]);
) A2 n. f6 \" D6 t& J d pokeVariant[1].vt = VT_BSTR;
- _+ ?" ]7 U9 P. q9 ~6 ~! c5 D+ G" ~+ d pokeVariant[1].bstrVal = itemStr;6 ^4 K6 G/ X# U; v9 l8 S- ^
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topicStr = SysAllocString((WCHAR *) L"system");0 C! j' q" i% L& Y2 [8 x
VariantInit(&pokeVariant[2]); ; c. J; K) a9 w; v7 w
pokeVariant[2].vt = VT_BSTR;
& P' I" f9 |+ Z9 `3 S+ D7 n9 s pokeVariant[2].bstrVal = topicStr;# A5 X" g2 D- n. ]
" }9 }% M$ e/ t" G+ R# ?4 b6 c // Set the DISPPARAMS structure that holds the variant.
& i1 v) K( c2 {5 K: E0 p# s ?) O
4 y5 g7 y! F9 J: c8 I dp.rgvarg = pokeVariant;( O! @7 _+ T6 T# s' I6 P
dp.cArgs = 3;
" D% a3 q/ W" T5 O" R5 X+ b dp.rgdispidNamedArgs = NULL;
" `3 Z. J9 M; g) \9 i' V& E dp.cNamedArgs = 0;4 B$ ^( ~0 M8 ? I" y; N
. l6 ^* l( q2 k. U' b" E8 G
// Call IDispatch::Invoke()
' O: B) z% g; W$ z2 }
W6 L( x! `8 r" i( v' T4 k hr = m_pDisp->Invoke(
* T4 @( C! H' Z( E pokeID,0 V; t6 ?# l4 _
IID_NULL,
" `) N7 s* m4 Q3 W3 H7 ]" B, V; n LOCALE_SYSTEM_DEFAULT,1 D5 b0 ]4 `2 e, _4 ?8 ~
DISPATCH_METHOD,/ G. B! @- e4 r5 m; a( w/ x
&dp,. Q9 h, j' D6 V9 n' K1 u' r/ \) Q
NULL,
0 ?/ }% G7 K3 X) D &ei,
7 s% r2 t/ u; m8 C &uiErr);; I) k7 z) |# D0 Z4 M4 c3 C' K+ m
) @ B' k( J7 T; {: d+ S
SysFreeString(topicStr);0 q5 ?& s9 [- ~: i, O6 @ a* O
SysFreeString(itemStr);: Z" g: J2 _+ B% q& o. z8 S% S$ m
SysFreeString(valueStr);/ \# O8 T! \/ {- H. \" w6 S8 @
. L& Q. v4 e# b0 E- w 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???. l, D2 q! v9 e$ T8 V6 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????+ d. j" ]8 U- D& f4 b9 h6 ^
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9 {& J! [9 u0 N/ {5 L! ?2 A) S: V0 w 2.这是request的程序
L" K3 {% C, S // Request a value from Extend2 T' @- p/ D, S! b' ?. w) r
//
9 k5 B* ^4 N' U7 ~ // Initialize the variant that will hold the BSTR. Set the variant's
' i1 N8 m X: C( C // type flag to indicate the fact that this variant holds a BSTR. Place the
( `, W" v8 m4 n3 r" o& _4 F // BSTR into the variant structure.
+ z3 S% R2 a0 M7 B ) d9 O( t( C" L3 D
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' ^( W; z4 B. v1 s9 W
" \. g9 _+ p/ j G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ j% e ~; f. v' b6 e6 b9 d
VariantInit(&requestVariant[0]);
( {8 S/ `8 s# n& _ requestVariant[0].vt = VT_BSTR;) l' [' a" p6 { {* @; ?
requestVariant[0].bstrVal = itemStr;
F7 ?$ B* o6 \ H0 ?
) m+ j, |; {* ?- _ E1 q" c topicStr = SysAllocString((WCHAR *) L"system");3 ?/ L+ }- Z4 N7 K+ E7 n1 @; f/ ?+ k
VariantInit(&requestVariant[1]);
# E% I3 q4 G0 R" c! I3 ] requestVariant[1].vt = VT_BSTR;
" `, Q/ i' M4 Q- h requestVariant[1].bstrVal = topicStr;* o" c" `7 |! b4 `+ s' c! |
% I7 e6 ~( } D0 l9 d // Set the DISPPARAMS structure that holds the variant.
& ]$ |/ s- G$ a2 i7 w1 ~- i8 T ( N+ d5 E ]" X& X/ |- N
dp2.rgvarg = requestVariant;, a1 `5 b6 b% c& S
dp2.cArgs = 2;9 c" j- _* b) d g) u# a% w
dp2.rgdispidNamedArgs = NULL;2 x O+ h9 |' L2 z) W
dp2.cNamedArgs = 0;
R2 Y5 f5 P. j ]! D4 i4 W ) M+ L% p! |" `; L) b- z% f/ Y; H
var.vt = VT_EMPTY;
h: p* t" j# A- _
0 g8 _* ]% p) }! r2 ?% X$ ? // Call IDispatch::Invoke()
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6 F) I- w7 J9 b u! u hr = m_pDisp->Invoke(
' c4 ~$ n2 a4 ?! x- S4 W9 x& V( l requestID,
. b8 R) P: ?0 ^+ y IID_NULL,0 ~. S3 H8 ]& H7 \; j& C0 U: ?
LOCALE_SYSTEM_DEFAULT,' w" P |. ~7 v/ ~' D# H- z& Z
DISPATCH_METHOD,1 W* k6 Q, [. N
&dp2,9 b) u( ~' e( K
&var,
) Y* N& |* g- c' o S& c &ei,
8 p" K+ l( a1 n3 f) c' Y &uiErr);
& Y) m! p( F3 w( F* t9 r& ~
! \( ~7 K( n z( B9 ? SysFreeString(topicStr);7 ?- E* g. V9 k! {+ E' D
SysFreeString(itemStr);# [: z7 B ~. [# S* J
请问该程序是获得extend里面的哪个值?! {# `( b/ R- x. u3 y I3 Q
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