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:
! C ^1 j$ Y0 F4 F' m0 Z4 \2 j Name = (WCHAR *) L"Poke";
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' f, e) C- V: }* d/ H4 x& r hr = m_pDisp->GetIDsOfNames (
: [( q+ z3 a7 k! T IID_NULL, // reserved
& N" w1 b6 E: C3 Y2 R( C( S &Name, // Array of names to get IDs for$ R: n! i4 G; @+ r8 s0 I
1, // # of names in the array
: [/ O6 a8 d- S LOCALE_SYSTEM_DEFAULT, // System locale
9 n) Y- M6 B n; r: C &pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");) ?- \$ U( i4 n7 a, y0 n5 w* ?1 N
return;
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/**************************传递数据给extend**************************************/
2 T) v- q; `3 ~' p5 u. M- O pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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" s8 m% w) E9 g# ~0 R. { valueStr = SysAllocString((WCHAR *) L"1232");9 P2 T% `/ Q7 H% N! Z, h% r F% e
VariantInit(&pokeVariant[0]); & d- F( B+ g. @+ K: K
pokeVariant[0].vt = VT_BSTR;
) y" N& U* D# N5 G) R6 t pokeVariant[0].bstrVal = valueStr;
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( l* n9 Z# ^+ m4 x( s& x" c( v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
* d. @. z0 O: e9 \ d' o VariantInit(&pokeVariant[1]);
! i# C, z) x3 ^! u9 P2 Y. C% Y1 C pokeVariant[1].vt = VT_BSTR;) T+ z" Z: E2 j3 D# f$ J+ P8 @ E2 \. q( ]
pokeVariant[1].bstrVal = itemStr;
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' \$ ?; u4 F1 e& r) P) t% u topicStr = SysAllocString((WCHAR *) L"system");
7 F9 b1 p# J: v1 y5 J. g- s VariantInit(&pokeVariant[2]);
3 {7 ]8 z* g2 k" w2 P( G: `: m pokeVariant[2].vt = VT_BSTR;
- S4 j4 t p g# s) j! \" m, L0 }# Z pokeVariant[2].bstrVal = topicStr;
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) I6 n2 x/ ?: j* L8 m // Set the DISPPARAMS structure that holds the variant." q8 s& n+ |* _ y
/ q0 ?3 u, R6 L$ {" y+ z2 ~2 [ dp.rgvarg = pokeVariant;1 f E0 i, E# G9 J& k8 h
dp.cArgs = 3;4 c3 ]9 P/ S% t" L5 H8 q2 X) `5 N3 `
dp.rgdispidNamedArgs = NULL;
6 l' y- x! z) v8 H" g dp.cNamedArgs = 0;; P, ^: ^) b* Z' e% s* F: T
- y& c I6 K* t8 F // Call IDispatch::Invoke()
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+ \9 s$ s& F+ |) C/ W9 } hr = m_pDisp->Invoke(1 v+ R/ M7 b+ S) z# F
pokeID,) L& f9 o# o5 e: Z
IID_NULL,
, U0 o1 `6 g/ w' V+ _" m# v LOCALE_SYSTEM_DEFAULT,
' m* C& d2 j3 [+ i( h5 x3 c- P( @ DISPATCH_METHOD,
4 t0 ]" D& t% A! g5 r &dp,8 I9 e2 o/ d2 s* o! z+ ]
NULL,
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&uiErr);
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/ G- u0 H) }0 {5 w# e SysFreeString(topicStr);; G" }5 S2 T, H2 q
SysFreeString(itemStr);9 d# i# n$ w1 N0 v! v
SysFreeString(valueStr);+ B) H) ]! q7 j8 B5 ~
: ]0 H6 l8 p) ]! p3 b 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???
9 T% a' w6 L D3 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????& n( `' F$ C8 x- [( A- X2 e
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, [. Y1 O0 V% p, Q. J 2.这是request的程序9 \" ~6 J4 t4 |& F$ V$ b% Q$ S$ n
// Request a value from Extend
. S. s7 \, Q* F6 k5 h4 ^# n) l //
/ q+ J* ?' ~- Q // Initialize the variant that will hold the BSTR. Set the variant's
+ n( [7 _) F9 n // type flag to indicate the fact that this variant holds a BSTR. Place the
9 a3 t6 Z- v9 W // BSTR into the variant structure.2 K# H& b& {4 s2 p
+ [* v* R2 g" s0 |6 R* L! X/ { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) L. H0 W/ R) T
! f* R' C+ w! @! M8 P1 K2 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( V# i6 |9 Q: P; C/ E VariantInit(&requestVariant[0]); 7 M! G6 u4 y/ V" j. M# r+ M/ V a" J
requestVariant[0].vt = VT_BSTR;( Q+ b8 C, X% g6 a. X
requestVariant[0].bstrVal = itemStr; h) B- [/ Q8 Z0 Z
* e ^5 A3 o# Q* T) x! U topicStr = SysAllocString((WCHAR *) L"system"); x# J% \8 n8 a' ~
VariantInit(&requestVariant[1]);
+ w8 u. ^: R! E- c5 g( |9 E0 T requestVariant[1].vt = VT_BSTR;( [* t1 m8 Q; }: ^1 D* l) j3 y
requestVariant[1].bstrVal = topicStr;2 j7 @; j* j% Y+ O7 x
3 F6 U4 u" v& l l0 ~3 c // Set the DISPPARAMS structure that holds the variant.
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' `+ [$ Z# m: F( p7 w0 g' K5 \ dp2.rgvarg = requestVariant;5 C& e/ W1 P% I, O; S; n6 X- E% P
dp2.cArgs = 2;" ^4 p, h* k' z. x) ~6 u( A
dp2.rgdispidNamedArgs = NULL;9 X+ @# o! }) ~5 |
dp2.cNamedArgs = 0;" [$ V7 W' y7 `9 L, W# \! i1 P# Q$ a
' M4 E% U3 L) X9 h var.vt = VT_EMPTY;5 c4 T7 F" ~- |7 C
) H$ b% m9 k5 D b // Call IDispatch::Invoke()1 @+ A5 v5 p" b2 K
3 t3 P% h2 |/ E8 }1 C) \. M hr = m_pDisp->Invoke(
( C: {4 b0 Y. i0 M: \: ~& R requestID,7 @: G8 `" y, z9 x, c
IID_NULL,& X! ?/ S3 |+ y& f1 s8 n! W; B" y
LOCALE_SYSTEM_DEFAULT,
. O* R) Z5 l; d DISPATCH_METHOD, N1 J8 d) _% ?( M0 H
&dp2,
: g. r* g% {: N &var,
" O# _7 V$ ~# @0 s' I# T6 q &ei,
5 b# [, r& a/ u; x &uiErr);7 G( ^* y" Q, B! E
5 S# f- F+ M, D# @) K3 p SysFreeString(topicStr);
* |4 l$ f% |. g8 {6 J SysFreeString(itemStr);
4 R& z6 ]! U# ]& @" e 请问该程序是获得extend里面的哪个值?
* B( P' E3 q# V+ J5 E8 ?4 |: [ 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