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:3 Z+ b( D* y. l L) m
Name = (WCHAR *) L"Poke"; g/ k7 z+ C7 L5 R! X& t; {4 ~" x: ?" ^
8 ?7 z- _9 c, g/ l hr = m_pDisp->GetIDsOfNames (
$ h+ J3 x5 L i4 w, F IID_NULL, // reserved& c' z8 F @* M
&Name, // Array of names to get IDs for
/ l s) }% g8 z! X6 w: h' L! h. e 1, // # of names in the array6 [) J" z5 _: x- {) H
LOCALE_SYSTEM_DEFAULT, // System locale" j0 M# N$ _" Q- p2 G, S8 [( S
&pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");/ k. q/ f. \' i4 {/ H, s7 s
return;
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/**************************传递数据给extend**************************************/6 o1 A9 e* ^" y. r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% u- {( Q! X! D, N# H# y
& L% \+ G' x8 D1 K valueStr = SysAllocString((WCHAR *) L"1232");
% A% X2 i" ~) {7 H) G* P& | VariantInit(&pokeVariant[0]); ! _7 y3 J9 R, G2 f9 c- q; |
pokeVariant[0].vt = VT_BSTR;. a) z( V! P. O% Z% n4 d) @
pokeVariant[0].bstrVal = valueStr;* g8 A+ d+ e( }5 D9 v
4 T7 G* R- C3 O; l5 g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( M5 R: S0 Y4 G3 D
VariantInit(&pokeVariant[1]);
% f% D* k% w- m9 s' K. F pokeVariant[1].vt = VT_BSTR;0 o H: t$ J& U/ Z: t' P
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
8 Y7 S0 H& N0 J( V& F, d! j# h$ ~ VariantInit(&pokeVariant[2]);
" l, m; P1 y- w' S D( f. R pokeVariant[2].vt = VT_BSTR;1 |8 N7 @" w$ U) e0 y
pokeVariant[2].bstrVal = topicStr;" ]/ b- P! c% W, |$ V/ g0 u; G
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;, I, W) T. M* _% V
dp.cArgs = 3;
. B0 L) o) ]. z* V6 l2 l dp.rgdispidNamedArgs = NULL;. W. L- k( g. N: _% n
dp.cNamedArgs = 0;8 S5 P1 F" @! n* j& r: e$ b8 \
: z2 m$ p `5 [% E // Call IDispatch::Invoke(). }; Y7 h @9 h
% |- u0 l' m5 P& U3 K" M l" {) f. f
hr = m_pDisp->Invoke(
8 K6 _) F5 h) J w! N2 g pokeID,
9 a3 U. K$ q) @+ J- |4 L2 h IID_NULL,0 q. R2 |8 ~5 X6 i5 ^) p
LOCALE_SYSTEM_DEFAULT,
9 {" p2 U6 V$ y/ w& d5 E DISPATCH_METHOD,
' f H0 ^' v, r# v: q S$ | &dp,1 W3 }3 E4 K+ ]8 E8 Z0 G
NULL,4 j) V0 m" O' T
&ei,
) s6 X9 \4 }1 s/ w! B; V* H6 L Q &uiErr);
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8 |( I8 ~7 J5 L0 @' f( J" ^ SysFreeString(topicStr);
! r) W0 Q; p; O" L SysFreeString(itemStr);6 r1 b* s6 h+ P& A
SysFreeString(valueStr);
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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???& c7 z, B ~8 G5 Z7 E0 f3 |! b
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6 X- p% t" `; E5 s# {# U
// Request a value from Extend
8 ?& t. i' l' W. @" g //
& P5 z, r9 e% \, _( q# i // Initialize the variant that will hold the BSTR. Set the variant's
% ~( o! F$ {/ K6 ~& m* {" f# C+ P // type flag to indicate the fact that this variant holds a BSTR. Place the
' \7 }% ?% F- X7 `4 q- j$ b // BSTR into the variant structure.& V7 [; G; i, H7 K( i) L$ y* ?
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: k, n; R2 x3 u4 Q2 K! Z& F h4 Z
VariantInit(&requestVariant[0]); * U3 W: a1 e7 d/ `
requestVariant[0].vt = VT_BSTR;1 y+ F0 [. l! C4 {( f. G
requestVariant[0].bstrVal = itemStr;, E$ ^+ w6 x! H" m
8 x$ z$ \0 R$ ?/ J" M% a topicStr = SysAllocString((WCHAR *) L"system");
' S6 W* h% o8 Y$ r VariantInit(&requestVariant[1]);
) h) l# M$ {# v- k4 S. q2 E requestVariant[1].vt = VT_BSTR;
; i3 b5 q0 u# ^' L& q requestVariant[1].bstrVal = topicStr;0 D M: Z5 O @ N" n% K) O' `: ^
( D) A. d: D. F6 d# ^0 I. ~7 A1 {. b& X // Set the DISPPARAMS structure that holds the variant.3 M' t: I; g( K u- V, r
, ?' { n" g* I9 J
dp2.rgvarg = requestVariant;
% e& j* b; Q6 i5 T" K dp2.cArgs = 2;* [: K/ z8 R1 s3 D$ y8 S3 v
dp2.rgdispidNamedArgs = NULL;2 p2 X" ]- o8 U: X
dp2.cNamedArgs = 0;: o6 {1 ~2 X; ?4 A
3 H3 K. x. ]1 }0 c var.vt = VT_EMPTY;- V5 f% M/ G. s; E- O8 p
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// Call IDispatch::Invoke()
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8 o1 |# n0 j! ]* r0 b5 d$ I hr = m_pDisp->Invoke(
6 L7 ~: j% }' V7 I8 E requestID,
5 w3 T" d( x; A, L/ V2 [6 J, Q IID_NULL,9 ^# S$ n2 I9 E, `0 N1 N. T
LOCALE_SYSTEM_DEFAULT,
, p0 i8 b6 l& D" _ DISPATCH_METHOD,& C- c% ?1 D# d: B
&dp2,: s' m% }. X3 J/ r, v' w
&var,
8 Z }" ]2 m0 s8 v3 W- N, c% k! O &ei,* z- d: g, h. t8 |' s5 J* X
&uiErr);
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SysFreeString(topicStr);$ P2 P9 s! E8 c# B* O
SysFreeString(itemStr);
+ Q- R' E- X1 j. @ 请问该程序是获得extend里面的哪个值?
" B+ g' I/ s4 S# s- t5 Y* B 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