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:) K5 Z2 L$ N8 w% t( b+ O9 B6 I' H
Name = (WCHAR *) L"Poke";
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; S% b# C: p9 `8 p" `6 l9 T% c hr = m_pDisp->GetIDsOfNames (
6 E/ k4 A3 _+ r IID_NULL, // reserved
: l: n; u; Y3 `; `$ E/ F9 \2 M( p &Name, // Array of names to get IDs for- X% }1 d8 L; f6 d
1, // # of names in the array
0 ?5 k4 @' r( b. }' | LOCALE_SYSTEM_DEFAULT, // System locale
A1 {# b* t2 C" J &pokeID); // Array of IDs to fill on output
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" {0 M G" s, u if (hr)2 M& `2 }5 b' r$ n' A! f
{
5 Q3 \$ {! X D7 y MessageBox ("Get Poke Unsuccessful");2 J8 N# ~: K2 X6 X: [: [
return;) h3 ]/ M/ A. }6 ]2 c
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( S; V; x# i/ e0 `4 Q2 u% v /**************************传递数据给extend**************************************/4 r- S: z0 Q. Q2 ~8 u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
2 D! c3 R6 y# v* N+ q7 E VariantInit(&pokeVariant[0]); ) d3 H+ ?, _, y( |
pokeVariant[0].vt = VT_BSTR;% |$ O# S. [; V0 N
pokeVariant[0].bstrVal = valueStr;; _/ ?* t, Z' j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
& X+ c+ {$ m { VariantInit(&pokeVariant[1]); 4 G2 T5 E: ]& K7 o/ ~
pokeVariant[1].vt = VT_BSTR;. L/ v! _/ g% ?% Z* ? [
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");! _* d/ i0 t! }! Z' \3 M
VariantInit(&pokeVariant[2]);
. n( j* T, q1 |2 i- r) N pokeVariant[2].vt = VT_BSTR;
, ?, W; w1 {4 V$ t6 }6 P pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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9 u r. j& s* ^& S" }: v9 Z dp.rgvarg = pokeVariant;8 r& \0 v! A1 b+ U
dp.cArgs = 3;6 \$ I: m8 Y2 q$ L p4 f4 f2 g
dp.rgdispidNamedArgs = NULL;3 [6 T/ K6 I+ Q& O4 D* x" H3 Q
dp.cNamedArgs = 0;9 s! v+ X1 f7 G d6 ^
: b8 N( r( ~) R // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(% ^ @$ }1 T+ _" t8 h0 z4 k, X
pokeID,
7 J9 T7 S0 ^' |6 p% X: [0 k/ S IID_NULL,; F) p! {& B: S4 U- X: C
LOCALE_SYSTEM_DEFAULT,, K- e+ ^- I) S- }. G. Z. y m' f
DISPATCH_METHOD,
" z7 y3 S, D/ D0 X7 | &dp,$ `& F9 g7 S, _9 S( {+ D
NULL,
5 i% q1 r" y. M2 Z &ei,; `- |/ ^( f T3 {5 s
&uiErr);! X9 c4 O& F e$ d
2 r; Q' V5 E- D* @" o SysFreeString(topicStr);
/ V; A/ L2 B# X( I5 u8 K SysFreeString(itemStr);! C9 I% J" `: x A8 T
SysFreeString(valueStr);
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+ |/ ]6 R* e: q& ^# l& `* Z6 M 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???
" E* M& w# h9 c 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????5 U5 [+ I& |! e& Z% O( X! ~
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4 J* e' L( o" [# F: ] 2.这是request的程序( {3 w# `- m: u$ B1 b
// Request a value from Extend
$ R6 K/ G6 S. u% d m6 x //
- R; d# g% D! n# G // Initialize the variant that will hold the BSTR. Set the variant's) l7 Z1 ~* ?) Y \7 O
// type flag to indicate the fact that this variant holds a BSTR. Place the
6 j3 g) r$ a, E# A4 f& K* X // BSTR into the variant structure.0 `3 v1 M7 z2 m. a) v
1 i) w5 g4 y* _$ j0 A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; E0 c; k q8 w% f. { VariantInit(&requestVariant[0]);
$ O; U u' L! h! W# M4 n1 J requestVariant[0].vt = VT_BSTR;. t4 |' a% @) d( g @- h5 V" |% O/ B
requestVariant[0].bstrVal = itemStr;7 r, p5 l9 `8 {; M
8 m: q. r) v! ?# }2 y# x! j4 l topicStr = SysAllocString((WCHAR *) L"system");1 U; `# {! C& y' h
VariantInit(&requestVariant[1]); ; i" x2 W6 G. v1 d2 a$ h
requestVariant[1].vt = VT_BSTR;% H# Z( F4 m$ o& E
requestVariant[1].bstrVal = topicStr;/ Y# P% {. O- C8 u: k+ e9 g! o% {
. \. M s' e, `- |) H // Set the DISPPARAMS structure that holds the variant.+ H! ~9 U7 _8 } e/ c3 ^" J
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dp2.rgvarg = requestVariant;
9 O+ Y$ N& Y& G dp2.cArgs = 2;
+ M: V* c) d* X* o/ K8 C6 f dp2.rgdispidNamedArgs = NULL;: y. y* u/ `7 H) t" p+ T
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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' G! P+ H: E6 E8 \2 t0 q4 x3 B // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(0 I) |" M9 v8 ^+ o
requestID,
$ M6 u( r9 z5 l IID_NULL,
) U0 w6 \. m% @, W% a& }: D; N: m1 ~ LOCALE_SYSTEM_DEFAULT,
D2 f" @5 d9 D# H DISPATCH_METHOD,1 M, Q( g* [; ^6 }
&dp2,
; j. G$ u) c4 n5 P &var,, L" [' Z& O# d& N' A; p: o; P
&ei,, s- K0 L4 S9 C. t5 c
&uiErr);
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SysFreeString(topicStr);
% ?' k) Q7 r% P1 o SysFreeString(itemStr);) E, O5 ?9 f; E& _6 }) q
请问该程序是获得extend里面的哪个值?5 T' Z9 I9 l( P, \8 p) O. e
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