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 W: K8 G* t7 ?1 _# X, `! ]5 }
Name = (WCHAR *) L"Poke";
$ [5 D3 k# N( x# | ! L, B) R2 P/ I/ }
hr = m_pDisp->GetIDsOfNames (
! R2 s7 ?9 G) Q! G1 N9 t; j IID_NULL, // reserved
/ z9 u1 Q* Y" S7 ~) x &Name, // Array of names to get IDs for
/ }6 U i4 v" k0 @/ l 1, // # of names in the array
! M3 ^: R. T! g" O2 S* O6 I: @, a& } LOCALE_SYSTEM_DEFAULT, // System locale
/ F! O3 `" j% Y$ Y6 [- E. S$ q& L! V &pokeID); // Array of IDs to fill on output& ^8 G4 n" |- V& G
/ h6 |- I0 i! E7 v8 B6 o1 J- p$ G# h
if (hr), v+ S7 [, J p' b
{
3 c( p- ]" y* h3 @ MessageBox ("Get Poke Unsuccessful");
& ~# S4 d7 M0 _7 \ return;+ Y, S" F) B$ x& J7 Y' d) Q$ u
}
% C5 b$ r9 X. L' L. j
! X( a$ Y% `% M& L$ b3 j% _ /**************************传递数据给extend**************************************/+ J8 U; {( {8 M& ~6 C" W" i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);. p/ v7 k j& n. r$ T2 `
% R# L+ l0 U k+ q% u0 d5 T
valueStr = SysAllocString((WCHAR *) L"1232");
& N- F* z* ^/ E; ~$ E" H: u( `! r4 u VariantInit(&pokeVariant[0]);
. \- z3 L* w; l pokeVariant[0].vt = VT_BSTR;* b6 ?# j$ S& J. a W$ g
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) A) E; a& }: l( B( f3 z$ e* x2 ` VariantInit(&pokeVariant[1]);
) `5 m6 w0 u% X pokeVariant[1].vt = VT_BSTR;7 X, m$ ~# D3 K3 E: R, R$ L6 G) ]' W
pokeVariant[1].bstrVal = itemStr;
; j k9 y, A7 h9 o( Z% d" \" m8 G
& f4 z) M$ ?+ o& g% E4 v topicStr = SysAllocString((WCHAR *) L"system");4 J0 H- n4 e; z" e ^* u; [4 {
VariantInit(&pokeVariant[2]); + C2 ]7 z& ]2 U: X: s0 H; Z, V0 v
pokeVariant[2].vt = VT_BSTR;
' y6 h$ a% c# n) A: W pokeVariant[2].bstrVal = topicStr;
( a: ^% `& }% |1 U6 T/ ^ ! q( B/ p2 q* p* ^# n! j
// Set the DISPPARAMS structure that holds the variant.0 R: \5 H: D& L/ Z# G& m
, J+ r" I5 o" B* I, `) ~4 z2 h dp.rgvarg = pokeVariant;
5 Z1 ]& {8 ]' H/ F dp.cArgs = 3;
- {' V9 L7 ?+ A* o$ } dp.rgdispidNamedArgs = NULL;
/ Z" w( j4 ?# e9 B dp.cNamedArgs = 0;
0 B7 w" U/ n! e2 o( X8 C/ G$ c
. B' P9 i0 n+ I, z" b8 @ // Call IDispatch::Invoke(): j, o! U4 }) ?$ \
/ \" ^* e7 ~: D# R$ x. \0 m0 ^2 D3 i hr = m_pDisp->Invoke(
8 v1 _% z H& |: a: r% } pokeID,3 ~" s; r: o0 Z1 l
IID_NULL,
( j( [& W- z9 L$ F LOCALE_SYSTEM_DEFAULT,
; \0 ~2 a' E$ W! @ DISPATCH_METHOD,1 G* u. i! \& K% Y! O% }' p, J
&dp,
- J" d, n0 H5 T" _! u# n NULL,8 V& b1 Z3 @+ g1 N3 X
&ei,
& d0 N$ K$ S0 W e c &uiErr);
. g6 M. |$ u6 k7 V% W+ [ & P8 I! z/ b6 ^3 `4 b- i0 ] U
SysFreeString(topicStr); x/ U6 \/ X4 H8 r _/ _' h' l
SysFreeString(itemStr);4 g4 b C3 B, g* \! o
SysFreeString(valueStr);/ l, a/ \* G0 S* c1 V" S" @9 }
7 }" i0 l0 P3 S+ ? 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???
8 G& L6 [3 s+ ]: W- p 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???? V! ^2 F$ z8 E+ B( w
8 w& k2 c7 P! N2 K
+ c! {: F! @. @4 P+ p
2.这是request的程序+ M( n) j: M9 W! x! r
// Request a value from Extend
4 w" Y& K5 K0 e$ n/ c5 ~' S //$ l: H( b/ ]5 Q1 m" i: b2 k
// Initialize the variant that will hold the BSTR. Set the variant's" m$ ~' J4 e" n4 ?. y4 T8 f U) N2 D
// type flag to indicate the fact that this variant holds a BSTR. Place the
. N) A9 f$ w0 V // BSTR into the variant structure.
, M0 Y; L: @8 V2 o. @
9 K, w) k; A) m9 A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 d- z/ j$ L7 C4 ?0 a! A" Z8 p9 e
7 G7 ~9 Y) R/ b* s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 I/ B: |/ V& K VariantInit(&requestVariant[0]);
( p- i3 e; ^; v4 q$ [0 q! x7 K# E requestVariant[0].vt = VT_BSTR;
' [! H3 ]; [5 B) `7 G4 [1 i requestVariant[0].bstrVal = itemStr;2 x6 V% F+ y7 `- T+ T: U$ }
' {4 k$ x" t; g topicStr = SysAllocString((WCHAR *) L"system");
% p1 T, B* |$ W i3 I" \; H VariantInit(&requestVariant[1]); ( [5 y7 u) m6 J, {1 p/ i3 t
requestVariant[1].vt = VT_BSTR;" u4 y9 [' }0 z6 r% O" n% k( B
requestVariant[1].bstrVal = topicStr;) M2 G* P8 i6 I3 u5 w& W4 r
# ^6 y+ G# d5 F! a6 ^0 Y- X // Set the DISPPARAMS structure that holds the variant.
- x. l J6 \+ {7 w+ r2 Z 4 r* ~$ I1 x9 Y
dp2.rgvarg = requestVariant;
, k0 B/ C5 B) Z. b) M dp2.cArgs = 2;
5 d p% |4 J/ J) } dp2.rgdispidNamedArgs = NULL;. _2 q9 R6 g6 D' B% x5 J; ]
dp2.cNamedArgs = 0;, w5 y# Q* X$ u6 k3 k
' X) |9 Z. K5 ?0 s3 h
var.vt = VT_EMPTY;
3 K7 |' L* @% h! W2 ?
1 g, K4 J6 c2 d1 E6 { // Call IDispatch::Invoke() O, z, a7 H- R8 q9 t
1 u$ `' i3 _5 b
hr = m_pDisp->Invoke(
/ [6 ~, g, H& Y, d9 N requestID,+ g2 o' T* ^8 o3 G# S% \
IID_NULL,( a$ d; C4 S& Z0 y; Q1 l
LOCALE_SYSTEM_DEFAULT,/ _+ d& M# O0 V L
DISPATCH_METHOD,' M( o. h1 d& Z* q9 Z4 U; `
&dp2,
' K0 Y) ~2 `. U &var,, B( a6 Z7 j5 E
&ei,
. N- o' s% ?, S0 b5 Z &uiErr); S4 m' M3 v; _, s* l
v+ f& w+ V$ f8 K SysFreeString(topicStr);
8 Z/ }1 `5 D0 P SysFreeString(itemStr);
- f: U P- k: O% j 请问该程序是获得extend里面的哪个值?
: ]4 N: m$ c9 R# {; Z6 b+ | 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