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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:
& e% [ ^' |! zName = (WCHAR *) L"Poke";/ @2 s9 b* d) @# q# T4 O
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hr = m_pDisp->GetIDsOfNames (
5 O/ T/ K# G) [- X, E/ _* t+ d% v; e IID_NULL, // reserved( V k# P1 |0 |
&Name, // Array of names to get IDs for0 t7 m/ q* b1 C+ Y/ m' V; k, w8 n0 v
1, // # of names in the array9 h1 h6 K6 \% a& Y) x. d6 D2 J
LOCALE_SYSTEM_DEFAULT, // System locale
4 r, _1 @0 ]; q k" O3 ^# D! R- E &pokeID); // Array of IDs to fill on output$ [) V: i6 M8 T0 S$ A
& R1 }6 z( {4 a3 \3 f6 f+ e if (hr)5 N1 M2 G* \/ z, z
{
: r' n: `3 M n. s% s MessageBox ("Get Poke Unsuccessful");
$ u" ^' E; \9 }: H. W return;
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. I" U {$ p# Q5 x" A/**************************传递数据给extend**************************************/4 o# k2 ~3 k* ?& j% z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; W4 O/ `3 u: `5 ?3 ^
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valueStr = SysAllocString((WCHAR *) L"1232");
3 r# ~ G( o2 I6 Y% i VariantInit(&pokeVariant[0]); $ X3 ] b' F- p5 }4 l- M6 h8 |
pokeVariant[0].vt = VT_BSTR;5 t7 M' t7 G2 \, A$ W( {
pokeVariant[0].bstrVal = valueStr;3 V% T% j& e% H& j( j* [3 \7 V( [9 \
- C& O$ D' I2 x# v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) K, {- ~% N+ M# A VariantInit(&pokeVariant[1]);
7 G. x. F6 N( z. S! G, p. J pokeVariant[1].vt = VT_BSTR;0 @# C! l% f0 g0 A9 h
pokeVariant[1].bstrVal = itemStr;
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: g8 J: e [5 |3 b) ^5 H K topicStr = SysAllocString((WCHAR *) L"system");
2 s* F+ |# N# V4 a VariantInit(&pokeVariant[2]); $ W7 U5 ]* {2 |5 R" \
pokeVariant[2].vt = VT_BSTR;
_9 S; {9 t8 r. e; e pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
9 b/ }1 |. m% ] dp.cArgs = 3;; V4 S* U7 R+ [: m6 T6 ]/ z) J
dp.rgdispidNamedArgs = NULL;
; I; k3 e2 R. \! N2 L/ U6 H; r dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()
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9 j5 T b6 o* L2 i V8 H9 Y hr = m_pDisp->Invoke(
" w0 U# f3 L9 Q4 X. ?( ~5 @ pokeID,. X7 F3 S+ h4 x0 j
IID_NULL,6 t& m w. R7 \) G
LOCALE_SYSTEM_DEFAULT,
D: Q/ s: N [. y DISPATCH_METHOD,$ O% @4 l( R, }( l7 t" d1 a8 j9 v* x
&dp,$ y& V6 _' C4 o- n
NULL,3 |) |8 `. x; c. T: n
&ei,
6 v/ {1 V' f/ d7 |; k) Y &uiErr);
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SysFreeString(topicStr);
! y5 L& }& t: n4 z6 ] SysFreeString(itemStr);
% V8 X# J+ C% g) P, H+ p 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???
! P5 M3 ?& E+ E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
/ P2 r! e6 V: w# v// Request a value from Extend7 a. C5 c! [/ B0 e* I+ P. t4 u
//
% S5 `* P6 w) V# h// Initialize the variant that will hold the BSTR. Set the variant's
, M* x0 ?# U9 X! J, a& x9 f7 l// type flag to indicate the fact that this variant holds a BSTR. Place the& _3 ^% ?8 D) g8 J
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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! | }- N3 ?% j+ |& { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- u: j S$ x' f( d
VariantInit(&requestVariant[0]);
# T0 n9 @4 U. G* m requestVariant[0].vt = VT_BSTR;4 r; A! k- D7 \4 P/ g- ^
requestVariant[0].bstrVal = itemStr;! i$ r y9 S1 }" r- E, `8 D/ Q) ~% q
6 s) J& D$ Z0 @/ N5 K5 H. { topicStr = SysAllocString((WCHAR *) L"system");
( V% U" U2 v3 N- x6 w VariantInit(&requestVariant[1]); * c& S$ M) I$ y# Z% N- F
requestVariant[1].vt = VT_BSTR;
* e; U4 W1 h6 Z# `" F requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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- ^ Q+ i# @: e8 `& f) T p5 }" ^5 o dp2.rgvarg = requestVariant;
5 Z$ @8 G1 `( ^# k: i dp2.cArgs = 2;0 ?3 R4 G4 F7 T
dp2.rgdispidNamedArgs = NULL;# ^2 A( F# G+ U# e- l( `9 b) g
dp2.cNamedArgs = 0;; u R. Y3 A. m
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var.vt = VT_EMPTY;# V! v" O. o0 j6 p2 z* s
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// Call IDispatch::Invoke()( y$ J t: O+ F) ~
# e: o( |% D. y+ v7 d4 q8 L8 I hr = m_pDisp->Invoke(/ @: f4 K; O8 w1 t( U; L8 P
requestID,
& J* [& B# a. [; g6 J" ^3 f" e6 \1 X IID_NULL,
3 A# Z' R; m/ B6 R LOCALE_SYSTEM_DEFAULT,: o& P8 O4 g& v- ]& t
DISPATCH_METHOD,. y3 U4 @) a( p2 ^
&dp2,8 o3 [1 d" z( T: F& K. |
&var,
: `" R' Q$ i4 I- C9 H# ~( Z) N &ei,
+ ^5 |& |9 M" U! `: J" k" k &uiErr);
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SysFreeString(topicStr);8 b0 ^8 y# L* A/ y% \! I( c
SysFreeString(itemStr);' U7 A" r$ d/ P4 Q+ p; K- m, ~+ |: c
请问该程序是获得extend里面的哪个值?2 G d* L- S" x5 k: 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???? |
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