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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：2 y& M: B: P: }* U
Name = (WCHAR *) L"Poke";5 w& d3 h# `7 c$ e& H
! n# S( w4 r0 {2 ? hr = m_pDisp->GetIDsOfNames (2 S/ Y* M2 c, ^7 n
IID_NULL, // reserved. i" Y4 R* v1 ~! C9 N; y
&Name, // Array of names to get IDs for
* \' R/ N9 C/ J9 z! G$ X N ]0 I* @ 1, // # of names in the array3 d- Z& i: @& _" ~ z8 [
LOCALE_SYSTEM_DEFAULT, // System locale' m" y K+ N' C( }& J8 S$ b* }
&pokeID); // Array of IDs to fill on output
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if (hr)8 a/ F$ G$ h/ `; ^
{7 [+ M |0 q- y0 P) \! [5 J
MessageBox ("Get Poke Unsuccessful");
5 ?4 x4 A6 p. Z5 L/ _ return;
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/**************************传递数据给extend**************************************/9 y9 y5 ^: q! \: I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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2 f% L8 @/ E' S: ]* q) L' H# K: t valueStr = SysAllocString((WCHAR *) L"1232");# y& _- z/ w a( T8 L- y
VariantInit(&pokeVariant[0]); 4 _/ c4 y4 w' c( s- z- V
pokeVariant[0].vt = VT_BSTR;
) y4 K1 G3 G' r( |! b pokeVariant[0].bstrVal = valueStr;; B" X1 ^6 r, U3 A* P) r0 y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( ^- B3 S6 _) X' o) e VariantInit(&pokeVariant[1]);
9 O. M* s2 Y/ b# n" \; f; C pokeVariant[1].vt = VT_BSTR;
( G% o' P# S+ ~0 c3 N, Q! } pokeVariant[1].bstrVal = itemStr;% w9 L6 d! K& U7 U/ I3 G
- k8 O& T y4 g7 n: ]; m topicStr = SysAllocString((WCHAR *) L"system");
* w+ B4 h+ M3 T( h VariantInit(&pokeVariant[2]); 7 U& r$ W. p0 L Q6 t
pokeVariant[2].vt = VT_BSTR;) z4 C) F3 V4 Q# _1 X* U4 J, c
pokeVariant[2].bstrVal = topicStr;
% Z, P/ Z* [5 R
- ~- {3 A9 u d8 M// Set the DISPPARAMS structure that holds the variant.- H; P2 O7 u# R7 H% f: W$ C3 e
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dp.rgvarg = pokeVariant;
8 `$ ^# k W ? dp.cArgs = 3;% i) R$ s+ ]5 A D# d
dp.rgdispidNamedArgs = NULL;3 |1 K4 |( R2 f
dp.cNamedArgs = 0;
5 P, @3 x. ^3 o$ u; q5 y' l: N) x! S; Z3 Y& z& _% Y
// Call IDispatch::Invoke()
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1 N8 @5 L! U6 E# e* Y2 M: n u$ P hr = m_pDisp->Invoke(& E7 ^5 M) {. r6 P: U3 q' d
pokeID,% z, i/ g: R5 ^+ G9 X
IID_NULL,
5 O: O( u3 _0 I LOCALE_SYSTEM_DEFAULT,8 X9 m& x: K' f. }" j
DISPATCH_METHOD,* P$ g+ p y* D, @" W2 F
&dp,$ q& R+ Q8 E- |% W* b+ T! \
NULL,9 ^1 m( ~) Q# \% ^
&ei,/ q1 z* K& w8 {3 t" A8 y
&uiErr);
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0 [! P& O: }2 \% G+ y& X SysFreeString(topicStr);
; c& m _3 V) ^: n# V+ ?" O SysFreeString(itemStr);
/ e0 z) m x0 v2 _3 y5 i SysFreeString(valueStr);2 w' I( }! u' h6 r8 W
, @% S5 G0 f" r y2 u# v4 F! i: r
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？？？3 l, l& b' F# Y0 J. }
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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* O" L4 k2 O5 W' {2.这是request的程序; m K% W! O" y; U9 v" n& d% q
// Request a value from Extend
& T P( q" `5 x1 j3 o0 T0 e//
" g6 q$ j5 z& j& L! B4 i+ O8 u- }8 t* A// Initialize the variant that will hold the BSTR. Set the variant's2 |0 ~ E6 G4 j3 H x8 j1 x! J
// type flag to indicate the fact that this variant holds a BSTR. Place the
- z, ?1 p" i9 z/ Y// BSTR into the variant structure.
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- Q: q3 Z u( U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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5 T" N _% r, M$ J: @, z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- I: U! l W ]. Q8 q3 i
VariantInit(&requestVariant[0]); / P c, z6 j/ y: m& I6 W9 U: @
requestVariant[0].vt = VT_BSTR;% x( {. z0 W8 {8 z5 s
requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");7 @: E2 G. v& I% p; H( g% Q3 F) g
VariantInit(&requestVariant[1]); 4 C: C: t- s! k9 r# w ^+ s* {
requestVariant[1].vt = VT_BSTR;, H" }/ y4 X5 b; H
requestVariant[1].bstrVal = topicStr;
7 V P" `! m9 X" u: w4 W
" X$ K' @; n+ X8 E0 k# }! c! F// Set the DISPPARAMS structure that holds the variant.
3 C) l' i* N( k' f* {( d+ [% g% K) A2 Y& ^/ ~4 A; \0 z# I" d
dp2.rgvarg = requestVariant;
" p/ C \: G7 X- \$ S dp2.cArgs = 2;
& W# h; m* I' R dp2.rgdispidNamedArgs = NULL;9 z2 R% m* D+ E0 }7 P
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
6 u9 s3 V" J" ^8 m$ a8 n4 U& z requestID,9 i5 c) X; W# V# Z! M% D' H
IID_NULL,$ w/ M* ~: h, f" A: s: e" m/ Q: Y
LOCALE_SYSTEM_DEFAULT,/ ]9 k9 j) ^( ~. r: \" a. C" {4 p
DISPATCH_METHOD,
" c* h5 m# S) q1 G# s* ]' p! f &dp2,
. j8 o: r, Z7 \+ H$ }1 ^& N &var,: q- ~" ]8 \5 q1 P! j' Z
&ei,% r* E0 k5 X4 X, [. G3 r
&uiErr);
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SysFreeString(topicStr);6 t+ t- R; {/ r8 r- F8 s( \" m
SysFreeString(itemStr);" Q) k8 I {# G' t
请问该程序是获得extend里面的哪个值？$ O" U7 ], Z" 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？？？？ |
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发表于 2008-11-25 19:37:03
