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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:8 m! K1 s/ N6 X/ l* O
Name = (WCHAR *) L"Poke";; M& H7 v- u5 |; q4 f8 T1 |
8 m9 m: [! t8 |& p% h
hr = m_pDisp->GetIDsOfNames (
2 q3 P i, B4 |9 } IID_NULL, // reserved
- U# {; z z# y3 G$ J &Name, // Array of names to get IDs for
% P7 i# x0 r$ @' F7 }; l& E; d 1, // # of names in the array& F4 g4 T5 ]8 e
LOCALE_SYSTEM_DEFAULT, // System locale; k" a8 Z3 ]0 t$ [* Q4 A( q
&pokeID); // Array of IDs to fill on output' T; x+ I& `; p3 a- @) S0 |
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if (hr)3 _- p7 H- A: U% `, k- r
{
+ m. g; s5 U( E9 i MessageBox ("Get Poke Unsuccessful");
. M& ^7 Q) M8 T$ @ return;& v/ r% d- m9 q/ d4 y0 M& X
}" ?6 Z. V: }; L3 H3 x
0 K* E0 v( S& k! V/**************************传递数据给extend**************************************/% k6 ]; r% k; l4 J F X/ i: p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; K& K4 ]2 S& E! u! e3 F3 @
, b& I1 r. O! @& b valueStr = SysAllocString((WCHAR *) L"1232");
$ R' D+ m N5 }+ _1 ` VariantInit(&pokeVariant[0]); - h/ L" H! S1 p% D" @# G
pokeVariant[0].vt = VT_BSTR;
# s# m9 l3 ?( q* G" n; L pokeVariant[0].bstrVal = valueStr;. ]2 W+ ]6 |: Y2 ^4 K- t# @5 B
2 M& I; F/ m" J2 J5 _- g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
R& k' `) l# B! v VariantInit(&pokeVariant[1]); 8 G/ @6 s2 A3 z! Y9 h
pokeVariant[1].vt = VT_BSTR;# x0 ^, A3 ~$ @' f" o$ t
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
% ?& a. _! ~" g! D* p VariantInit(&pokeVariant[2]); 6 ]. a0 Y: h7 S! n% \, K8 ]; u
pokeVariant[2].vt = VT_BSTR;5 @6 |+ D! I R$ l# Y( i* @& X
pokeVariant[2].bstrVal = topicStr;3 ]* Y. ?, [2 m/ T1 @
4 Y! ]) J* t, j// Set the DISPPARAMS structure that holds the variant.
S( _9 A+ }2 F# `( b3 ^4 S9 v4 i2 ^2 b! ^! R- T8 u
dp.rgvarg = pokeVariant;
/ y5 G* t+ c( ]4 t* h e dp.cArgs = 3;
. h0 l0 F( h% N# d! K dp.rgdispidNamedArgs = NULL;
' Y4 z/ u' C( ?5 ?* ~, V- G K dp.cNamedArgs = 0;
, \ g# h. G7 k, \6 [; i; x1 H7 T+ u9 W" Q* u
// Call IDispatch::Invoke()
$ A% s% H9 ^; M0 `
, Y5 N3 D* \5 S( R hr = m_pDisp->Invoke(
# l2 @0 y! {: s1 V pokeID,! x+ }9 ?1 {. F+ v& j! Y
IID_NULL,
. ^* M0 u) t. T" D( T* \ LOCALE_SYSTEM_DEFAULT,
6 E" b$ K7 G3 s DISPATCH_METHOD,
/ c; H* g$ p0 Q5 w+ ~ J# N( l &dp,, K% L4 V* k$ F# A4 G
NULL,
% C) P- U/ z; u" i+ ]% E- o &ei,
2 F C+ m! Q' T &uiErr);
# T K# o$ v4 L2 g0 h6 D
' }" p q4 H3 b4 z+ _! h SysFreeString(topicStr);
* _" n1 _0 A2 j: q SysFreeString(itemStr);7 [6 `, \9 N1 F! [* u+ y) t S1 r
SysFreeString(valueStr);
h1 X }) `/ E' c f0 U
3 f, W: o# H. O8 O0 l# n% }7 j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???
* W! d& a j1 W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????) ^, C! K/ U# x' }
5 ^# Q/ b& C _% }' P
7 A7 P m+ R3 s, n G8 |5 i2.这是request的程序
. I9 O: R5 h! H! v& K3 q d0 J// Request a value from Extend* O+ c8 b1 V) Q! S, m$ a
//* ?9 h( ^+ s) n/ x. O4 |
// Initialize the variant that will hold the BSTR. Set the variant's7 _. I' J! w2 C
// type flag to indicate the fact that this variant holds a BSTR. Place the
0 {. p, q/ C( W0 }" @5 |( Z& o// BSTR into the variant structure.8 Y9 `" J" S; z; M
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
5 H/ _8 p, S% S7 H4 P% h+ e8 m 0 {$ z8 \! ~8 x% W6 D) V+ Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* Q% p" @# J4 ^ VariantInit(&requestVariant[0]);
1 e& J v* F% ?) i$ G requestVariant[0].vt = VT_BSTR;
, [; _" L8 w2 K: [- n requestVariant[0].bstrVal = itemStr;
! S. C0 n" ?( _% F _
4 h* X7 K! x) T* V5 E3 Q topicStr = SysAllocString((WCHAR *) L"system");
. q* t8 u5 ?" i' o* S VariantInit(&requestVariant[1]); % P) \9 H7 ?0 @5 c6 q, l0 U1 m/ y
requestVariant[1].vt = VT_BSTR;. r+ C# l$ o: `0 E8 C1 F
requestVariant[1].bstrVal = topicStr;
+ H4 }3 ~. w( M0 s8 Z1 H. R0 Y1 P- X5 {% f/ q/ E
// Set the DISPPARAMS structure that holds the variant.8 H, N( _/ R* K4 I5 f
4 q I* b S' O$ E! d. ^
dp2.rgvarg = requestVariant;
) W0 k* t9 Q' o# w2 p7 g& ?5 O dp2.cArgs = 2;+ P: h# Z4 d9 b( K5 w) n/ q' s, [
dp2.rgdispidNamedArgs = NULL;6 h4 X6 F$ N/ }* \2 Q' {- f' ]
dp2.cNamedArgs = 0;5 h7 p5 |9 B1 ?9 g
2 a$ m7 ]: U4 j- a var.vt = VT_EMPTY; S4 }2 W7 k! c; w0 T( Z' H: P
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// Call IDispatch::Invoke()
6 s8 g' d! ]" n1 P* `0 l( ^
, N5 P! ^0 k) ?- Q2 F& B hr = m_pDisp->Invoke(
& [2 S \1 ?8 h requestID,
9 F2 F0 }% i, z$ `6 M' r' I7 Z IID_NULL,1 b9 z: u3 \: Z& y/ ^6 h4 D& Q/ A; z
LOCALE_SYSTEM_DEFAULT,! H2 b! `- V$ | T6 X) W4 R2 k# }
DISPATCH_METHOD,) |0 m7 U2 i! M; Y: c7 X
&dp2,
/ b( |/ V8 k ?2 }# v: |0 Z+ y. r# F &var,
6 P, O0 r( q( G# ?0 b &ei,6 J. }( K, n% B8 J
&uiErr);9 A8 e. A# r: H1 s
' z. f4 t' l @+ U8 I SysFreeString(topicStr);) q3 [, ]0 a1 y3 U0 _' [8 N
SysFreeString(itemStr);
/ {# S; @" L+ d! Q请问该程序是获得extend里面的哪个值?# ~* N5 ^7 o G, G5 n, x5 Y
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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