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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:
, R) a) \5 m' Z* D9 |# oName = (WCHAR *) L"Poke";9 a5 `9 c: ]1 o+ o( d V
5 Q- r3 B$ C3 i; O2 g# {' e/ c1 ` hr = m_pDisp->GetIDsOfNames (
i8 w. x% Y( k6 I IID_NULL, // reserved
& _4 K& N! A L6 l: d1 z+ C &Name, // Array of names to get IDs for
: G5 A! A9 A6 Z 1, // # of names in the array
5 f; B) A6 _$ j0 x LOCALE_SYSTEM_DEFAULT, // System locale
9 @6 Z4 U) Y2 a: b; t &pokeID); // Array of IDs to fill on output/ }; c8 F# n+ _+ ?1 A* r
+ C# _5 D! C. Q6 L- I) ^, M4 @
if (hr)
' l% [8 K0 g* ?0 ]9 V {
- ?: B* J3 W2 s0 G MessageBox ("Get Poke Unsuccessful");
9 U- c" x/ y8 R8 j/ C+ z, T+ c( k return;" L i$ d2 U# w# w h
}
8 P6 o) u: n6 F& `0 Z( F
' x L: _& `# m* m: n P1 H/**************************传递数据给extend**************************************/
?5 K J4 T( b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" K/ }8 g% O2 V( |! `/ J! M
: j$ Q* S& I% ~( P' e
valueStr = SysAllocString((WCHAR *) L"1232");" U, O6 K5 m& [7 }0 D
VariantInit(&pokeVariant[0]);
8 {- [" t3 {1 E7 v pokeVariant[0].vt = VT_BSTR;
7 G. h* T4 s) [7 _ pokeVariant[0].bstrVal = valueStr;
& F# A) Y' l$ H0 B% Q3 M& S* U
0 y% T* q. v7 k2 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: C0 F/ o" c4 N VariantInit(&pokeVariant[1]);
' f! `6 V6 Q) d6 C5 o: o5 J pokeVariant[1].vt = VT_BSTR;
' P4 y& a8 L* v- `+ |$ K pokeVariant[1].bstrVal = itemStr;
7 I C+ P1 ^2 {* t2 c1 ~) v2 d+ h( X9 ]+ ?3 L- ]* c, \; R3 i( n
topicStr = SysAllocString((WCHAR *) L"system");% t X' x j7 c- A
VariantInit(&pokeVariant[2]);
. O8 u8 F9 b2 s: L9 A pokeVariant[2].vt = VT_BSTR;
4 ?* O# w( Y7 t D pokeVariant[2].bstrVal = topicStr;; s" k; m) y& p0 C9 S
0 ~$ j; j+ t. q% A6 u. H
// Set the DISPPARAMS structure that holds the variant.
0 @* ?% M9 S3 w4 ?$ [# b
6 j* F8 O& Q. e g8 a4 P# x# K1 h dp.rgvarg = pokeVariant;
( x0 G' O, n9 F* O& X2 m& i dp.cArgs = 3;
8 L3 k. L+ k9 H$ n! g- G dp.rgdispidNamedArgs = NULL;) P- _% @3 K& N, r8 ^& P* ^
dp.cNamedArgs = 0;" q8 V. C$ [! @; Y, f
, T4 u* m1 R* B: H! G; n; W! [// Call IDispatch::Invoke()$ s+ C0 N! {! ]" @% {
0 e5 Q) }4 C w5 d8 v+ ?2 o' Q' ` hr = m_pDisp->Invoke(
9 |6 ?$ m2 C" j1 F3 z, y+ j pokeID,
, T( q* x- J7 e) k+ a IID_NULL,
# Q1 N5 k; E4 l$ i3 R4 c6 `* I LOCALE_SYSTEM_DEFAULT,
% }1 ^; j7 D5 ]) ]! r- l& l* k: Z8 e, k DISPATCH_METHOD,
- ]# m( I/ G! |; H7 ?5 V- s* G &dp,
1 a- r) B. e9 R/ O ~$ k1 O NULL,0 o7 B" K6 Y/ {8 l: D8 U+ V$ }
&ei,
; u; M7 h k U' E# H d &uiErr);: b& t" h* ]; H9 c& W8 m6 @+ U
: E+ e( Y2 ]7 J7 `7 @, Q SysFreeString(topicStr);! G6 i9 S" {* n+ d( U: o6 t7 r
SysFreeString(itemStr);
2 |8 }) M- g; a* H% I+ X SysFreeString(valueStr);- z) q$ G. K5 k) X
6 f" q5 _/ u8 I$ S7 z( `/ `& l( U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???
: p/ ^& l/ v1 L0 n5 g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????
" p# t/ s* Y5 V; S7 g5 V, M0 T- |& ]& }
6 i, n F) {7 s1 C
2.这是request的程序
9 U, B9 S L/ `// Request a value from Extend
* A& t$ F( [7 ]$ A6 n* x1 {6 L//
7 b7 W; m5 |) h* K// Initialize the variant that will hold the BSTR. Set the variant's% Z, n8 v3 r3 \3 O# k
// type flag to indicate the fact that this variant holds a BSTR. Place the
% q, k$ p: l- P4 Z+ G* O// BSTR into the variant structure.
/ b$ ^ d; v, ~& b7 J+ x1 M9 |6 X; x. O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
$ Z+ H6 k5 r* i" |0 \7 @' U
. I& A, g( p& [; D7 A% h% q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( y7 |1 [) M x+ F: }3 T. O V4 ^4 O VariantInit(&requestVariant[0]);
9 @) i( F7 u' i3 T requestVariant[0].vt = VT_BSTR;
4 O; j" C/ r) S+ f1 r requestVariant[0].bstrVal = itemStr;
$ G) P4 I3 J9 ~% g I1 U5 H
! r l5 S8 r$ |6 A+ `6 h# N topicStr = SysAllocString((WCHAR *) L"system");! ?; ?3 B+ e* c
VariantInit(&requestVariant[1]);
7 c# ~% `: ~. Y+ Z) y requestVariant[1].vt = VT_BSTR;- c* L# k2 ?) H. l/ B' d. b/ o
requestVariant[1].bstrVal = topicStr;) j' V/ U( P& t3 y& \# n" e# E+ K2 r. U
/ ~6 m r4 d/ g9 B7 P
// Set the DISPPARAMS structure that holds the variant.
* h3 M" s2 C( y6 b% T8 Q8 z' U/ X
dp2.rgvarg = requestVariant;
( _) A) |+ w) Y" X; z6 M) S dp2.cArgs = 2;- ~% S+ c3 |% n( w' Y
dp2.rgdispidNamedArgs = NULL;
* S* U! k8 x4 s: b/ C dp2.cNamedArgs = 0;
$ {6 ^2 ~+ `3 i; j u0 e8 u& f3 W: `2 w* C5 K8 j( {2 I
var.vt = VT_EMPTY;) l1 j8 {! }' y1 g! @8 _' |
$ H! Y( A$ l0 q, R
// Call IDispatch::Invoke()9 } E5 i% H- i& F! g
7 A, a" M& F7 Y- P hr = m_pDisp->Invoke(- q% s: W* a% \' v& ^- A3 g: Y+ }
requestID,3 \, B! ^0 p4 j. W! I
IID_NULL,
1 I% C4 n5 B: a; u. N; Z5 t0 y LOCALE_SYSTEM_DEFAULT,
, N: j7 R7 V$ a DISPATCH_METHOD,- {* z1 c" F$ t0 A/ |
&dp2,
) A `7 G% Q& p' L- C' v &var,) f3 k$ }$ x o- Q9 z. a' A) _/ J
&ei,
8 S; x7 Y! U1 p2 {0 ? &uiErr);
' U* {( M/ s4 ~( @: a0 O- T3 e$ c# \) W
SysFreeString(topicStr);7 i# E/ K) ? ~; _& J; m
SysFreeString(itemStr);
0 b0 q/ H+ f- @' e请问该程序是获得extend里面的哪个值?6 M( \' w/ \# `9 ^" {
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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