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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:
9 W. F% O& Y4 k1 sName = (WCHAR *) L"Poke";
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, z/ p5 w8 o/ ]6 v hr = m_pDisp->GetIDsOfNames (5 G# l. m. I1 v1 F
IID_NULL, // reserved6 A9 z5 @. i; x; U
&Name, // Array of names to get IDs for
3 ^# |" {# Z3 v7 t% ? 1, // # of names in the array
9 d! C8 g' `" x# S3 z LOCALE_SYSTEM_DEFAULT, // System locale; u2 g- Q! n3 |1 y y8 t1 A% P
&pokeID); // Array of IDs to fill on output% V ^( X0 N: t. d1 y& L" Q+ x
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if (hr)
b9 Y" u" q# Z5 K {
; P9 F+ u/ G: N; s' W MessageBox ("Get Poke Unsuccessful");/ H" K; S1 u, \/ C: k, M
return;
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/**************************传递数据给extend**************************************/- O( S* D+ Y% b: g2 Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; w' _" `; ^; p; }& A
$ o6 @0 K# D, ]" T/ {( H' [ valueStr = SysAllocString((WCHAR *) L"1232");% H6 S; R% J( F3 i* y9 ^( }
VariantInit(&pokeVariant[0]); / z/ X U( [: X; u9 _) n
pokeVariant[0].vt = VT_BSTR;
0 ^7 B/ t# M7 Z( o. l" E3 ^ pokeVariant[0].bstrVal = valueStr;0 U: X9 P1 K* ]+ {, B! z- T. @
: G, [, k- M# r2 r* j2 _6 p( n7 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! d( S* s, D) K6 E" h n* ~: U VariantInit(&pokeVariant[1]); 4 e, I3 X |/ U9 G+ l% b6 Z6 C0 H
pokeVariant[1].vt = VT_BSTR;8 g7 r9 g/ f* A p4 n9 Q" [; |/ X
pokeVariant[1].bstrVal = itemStr;# H/ T* p" F+ L9 K
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topicStr = SysAllocString((WCHAR *) L"system");0 Z. F) n' t- v0 F, C& Q. H, @ r
VariantInit(&pokeVariant[2]); , K5 ?; D3 R1 |( g; N
pokeVariant[2].vt = VT_BSTR;
. @+ R1 w) [- O, R pokeVariant[2].bstrVal = topicStr;6 Q1 P; b0 _0 E# J
+ l& V; `) R7 b$ ?# G// Set the DISPPARAMS structure that holds the variant.! `0 U7 S6 E+ n
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dp.rgvarg = pokeVariant;
4 N3 v5 l$ M7 J6 V dp.cArgs = 3;. n5 o# a& \5 C
dp.rgdispidNamedArgs = NULL;- f; g& \4 f, a; l1 H
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke(); O; C, s1 `5 e' {% o- v/ s" V
- {, K3 S$ s- q; W+ {
hr = m_pDisp->Invoke(
* n. `% d1 Y: W+ T7 t pokeID,
% @. V) w) H- \- e IID_NULL,
- {; F0 }9 u& o/ O$ [ M LOCALE_SYSTEM_DEFAULT,
4 S! _" d1 z+ R$ J, i5 [ DISPATCH_METHOD,
9 `) Y" X9 K8 @ &dp,
9 b0 b/ n2 L t: _ NULL,
( z% t- }4 I2 \' A' K2 m &ei,
" |$ I2 H% E# |8 r! Z &uiErr);/ ]) A( N2 \" Y/ i) Q5 S: u
' ?# f ]9 L1 ~ j SysFreeString(topicStr);4 N. W# C! H5 w& ], D" m
SysFreeString(itemStr);3 ?" i; E! ]: E8 L" E
SysFreeString(valueStr);* k) e5 S- {2 l4 J/ n
, X$ R: ~ g) @, q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???
. U2 \" \3 T0 N. l. X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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2.这是request的程序
" u5 u) K7 S% t# O% t6 `! u// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's9 U/ ^. r4 R1 a' ?0 O0 B
// type flag to indicate the fact that this variant holds a BSTR. Place the1 r* F+ g: T" Q2 S b5 {
// BSTR into the variant structure.
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3 Q2 k( h" ~$ f6 X) [' q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ x" r( r$ A. X! a( D0 K! F [
VariantInit(&requestVariant[0]);
7 K D! f/ x: z requestVariant[0].vt = VT_BSTR;1 z. p- M9 J# J. @
requestVariant[0].bstrVal = itemStr;) B2 m2 t* E9 l+ E
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topicStr = SysAllocString((WCHAR *) L"system");# Y" k& J2 Y, x) J" ~( {
VariantInit(&requestVariant[1]); ' g V" ~+ _2 J4 v! y
requestVariant[1].vt = VT_BSTR;1 G3 x" z) j* L# C7 |' _; I
requestVariant[1].bstrVal = topicStr;
* v2 e1 T6 u5 Q: n) u( e+ T ~
" I4 t: g- _4 w3 w) f2 R// Set the DISPPARAMS structure that holds the variant.; A ?- P$ r+ E4 D/ h& \9 ?
. }# `% r2 {0 T3 q% } dp2.rgvarg = requestVariant; R+ T4 y: p* T' m% R/ _! w: p
dp2.cArgs = 2;
5 d2 @: b+ R& T* c dp2.rgdispidNamedArgs = NULL;
; `4 C& J7 [3 U% e dp2.cNamedArgs = 0;% ~( ~: G7 B9 w& d5 u3 K1 O* W- c
. h) ?$ f# Z' V+ x* V1 l var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()& G& c* K h5 Z' F5 M. O
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hr = m_pDisp->Invoke(9 w/ Z3 j/ E1 Z) l9 w7 b3 I. d
requestID,* P7 e! N* R9 I2 z
IID_NULL,
: J$ k8 G1 Z, }' h9 f5 B LOCALE_SYSTEM_DEFAULT,' t* x* ^/ c. d5 z6 b
DISPATCH_METHOD,+ C9 K2 f$ A3 s- E' J C8 q
&dp2,
6 U7 t9 K. G& V' W; x R8 D &var,- V4 ^! b& [- O9 ~9 c1 s, M5 G5 X% i
&ei,+ ?. _* S6 P, f8 ~
&uiErr);
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SysFreeString(topicStr);- a; U+ {$ S+ V2 I
SysFreeString(itemStr);
9 m* K. f; J% n- n请问该程序是获得extend里面的哪个值?
2 \6 P& }& B% g/ 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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