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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：7 R) J+ a9 K1 O5 ^
Name = (WCHAR *) L"Poke";) J/ ], L: }4 f6 B& e% f5 h
$ A7 g, T3 ~! Z, t- W& O; {- T
hr = m_pDisp->GetIDsOfNames (
; N; m, e$ J8 ~- i) x# E$ h4 k IID_NULL, // reserved
9 N/ v; ^/ m/ b3 p &Name, // Array of names to get IDs for
x! b/ \5 [5 W9 \; O% v 1, // # of names in the array- J5 o R% b* N9 y! U
LOCALE_SYSTEM_DEFAULT, // System locale- G3 c, L1 H4 V4 V$ I$ D' c' w
&pokeID); // Array of IDs to fill on output
' }# j' h7 w9 j( w3 U5 q
& p( C8 G* N' G6 u8 F# T' R$ S if (hr)
9 q* |- `; J! e3 n3 \# g {1 ~% P/ |$ [. S6 V n8 L" ?
MessageBox ("Get Poke Unsuccessful");
' F' F N5 _" F& g. l return;
- J/ C2 a, ]7 q4 b2 N- ~8 S- ` }( z, p9 s: R, k+ m1 C6 x# N
" k! w6 J0 A" [. Y+ I4 H1 g0 [/ v
/**************************传递数据给extend**************************************/
4 B$ E1 A% p& \# e1 E2 x u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- x: P L1 _9 M8 ]$ _1 t
% u+ R) D( ]- P) T7 t" \; B2 p+ } valueStr = SysAllocString((WCHAR *) L"1232");
5 ~3 G& K- K; h VariantInit(&pokeVariant[0]); 6 U' s. G4 }- u: U' U: O
pokeVariant[0].vt = VT_BSTR;5 I4 g) ]0 a p% ?; y" N8 ~% H
pokeVariant[0].bstrVal = valueStr;1 T- K, Z9 O; c% g
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
. ]; _1 o7 Y! ?' e- \& p VariantInit(&pokeVariant[1]);
u% ]& \7 {$ b+ {/ M1 V pokeVariant[1].vt = VT_BSTR;
% z6 H# M+ D+ {2 \% T1 m, j- B pokeVariant[1].bstrVal = itemStr;
7 O5 p3 Y3 l6 O( X7 P# A. v" E3 @; k0 ]: ^; Y
topicStr = SysAllocString((WCHAR *) L"system");
% |$ e, R$ M6 H# W4 j1 { VariantInit(&pokeVariant[2]); 6 x. @& y; J7 F' Y4 w
pokeVariant[2].vt = VT_BSTR;5 u) }! }4 N- l2 q+ s8 w/ c
pokeVariant[2].bstrVal = topicStr;) m O+ e. @; I! H7 R* `
* C4 \0 \# R: ?9 N& i
// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
; g* \: Q: @$ M/ \, b dp.cArgs = 3;0 y+ ^5 ^+ ]3 @8 {0 b) l
dp.rgdispidNamedArgs = NULL;
; ]3 ?# i+ o; ] dp.cNamedArgs = 0;) e6 u- f4 N- E9 B3 H9 G% I) y
4 T, ~+ a w4 n1 K3 n
// Call IDispatch::Invoke()0 |. @2 a# O- \' m8 R
& I9 V& M& ^4 \4 E8 e hr = m_pDisp->Invoke(
9 ^ y4 M) ]4 M6 e) t, C/ N pokeID,, m% L' Y: I7 [" v. p2 f6 d, v
IID_NULL,9 {& |. I8 Z$ D( X) b& o3 e, P
LOCALE_SYSTEM_DEFAULT,$ [ m- a. l. S* z U' N+ x
DISPATCH_METHOD,
+ ~ g# Q$ Z4 O. z9 j &dp,8 a) j% J8 }# L- D0 L- J1 a2 V
NULL,! l- r( a2 V7 W
&ei,
; J/ G1 q# I' \" P% d &uiErr);
, i5 L5 W# B3 l
6 v* e3 o1 S/ D/ n SysFreeString(topicStr); l% K7 b9 y. A
SysFreeString(itemStr);
2 |; D! J5 ]9 u' a. x6 v SysFreeString(valueStr);! K9 r: f9 N j) D- N
1 }2 ?6 {6 [. r6 Y/ s' }7 H( F+ I
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？？？ Y3 a* P1 C& } {. ?4 Q5 E1 [. U0 ?
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？？？？- j3 Y8 U p8 N2 E
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2.这是request的程序- E3 b6 @. p3 v; M- H1 y# ^
// Request a value from Extend0 c3 c4 |# O) ]; J" h# t
//
( `6 S3 |' D! `0 n- g// Initialize the variant that will hold the BSTR. Set the variant's
4 H" b4 T+ \0 `$ C: c// type flag to indicate the fact that this variant holds a BSTR. Place the
m+ ~; D1 g9 t5 U// BSTR into the variant structure.
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' b# n' x1 N9 |! z3 S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
$ y5 V1 c& Y8 q; r& n
" |! S4 O, s; t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% Z) \+ H6 i' e+ r, Z VariantInit(&requestVariant[0]); + U6 q, m% C7 J6 M- d* W7 Y9 N
requestVariant[0].vt = VT_BSTR;% x$ F* W# a% ^2 k+ Y8 Q
requestVariant[0].bstrVal = itemStr;1 }- z* o4 P! _ N: Q3 a6 I
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topicStr = SysAllocString((WCHAR *) L"system");
& n! [/ \+ t# M; ?- ] VariantInit(&requestVariant[1]); 9 u- `' s; L4 F' T% Q
requestVariant[1].vt = VT_BSTR;+ Y8 I' d ]$ K. Z* v5 t
requestVariant[1].bstrVal = topicStr;1 Z- o( Q- o8 X4 R( N* u
2 o; n/ t+ y+ T1 G1 z, y2 e// Set the DISPPARAMS structure that holds the variant.
+ T- `0 `$ g- V$ p4 [0 s3 V
6 `5 J+ e% v4 A" w& j: A dp2.rgvarg = requestVariant;
" Q, q' A- k) t R dp2.cArgs = 2;
4 a- f3 a8 u! U3 P dp2.rgdispidNamedArgs = NULL;
5 \5 j( h! D3 c3 \ dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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$ Y% A0 _* _. D l1 z// Call IDispatch::Invoke()9 n3 I6 U9 X/ @% |" c, r
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hr = m_pDisp->Invoke(
& _5 T, r& O' @ requestID,
, l$ d0 |: S7 v IID_NULL,
/ P/ P7 m9 Q' e7 j; Y- g. x3 Z LOCALE_SYSTEM_DEFAULT,, Y0 u. n v+ T- h! b
DISPATCH_METHOD,
0 D4 H7 j' h+ {0 C- u7 x' s8 ? M &dp2,
" E% p5 k) L; k. r* V &var,
( Q$ Z$ h- [6 y& C/ b* N0 p% s3 P &ei,
% B; C2 g" k7 o- q/ [2 S &uiErr);
! _$ s& f& c: Z0 @2 k4 \3 b
1 K! ]7 t0 c# o5 g+ E* @ SysFreeString(topicStr);" I; C+ M; |9 V( n( ^/ y% j
SysFreeString(itemStr);* I" N3 d1 l: H: r: {
请问该程序是获得extend里面的哪个值？& f s9 a* h8 k2 }$ T9 v' u
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
