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:1 D. n& s* z4 W( v
Name = (WCHAR *) L"Poke";0 M; Q: `0 Q- M |
% {3 F# O$ ~: C6 M6 r) ~ hr = m_pDisp->GetIDsOfNames (
2 p U- n' t- ?" S3 A0 ?: W4 h IID_NULL, // reserved: Y' r/ {: ?+ t! Q1 W/ I/ C
&Name, // Array of names to get IDs for
, y! D% z( [# b: R7 k, H 1, // # of names in the array: h( S* H& M- q# x" h* C0 A" }
LOCALE_SYSTEM_DEFAULT, // System locale1 e, n1 o" p+ R p$ |% A) N2 j
&pokeID); // Array of IDs to fill on output7 ]5 u& {/ }( }" ]
& }3 O$ q8 ~% ~4 }1 @ U if (hr)
: S5 Z% ?6 ]0 T# }; b% x5 u {
% U% s& K9 K7 E4 n& c% o& t MessageBox ("Get Poke Unsuccessful");
) b9 y& D h/ x4 p4 N a return;4 Q1 g" Q+ Q3 x" ^
}
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/**************************传递数据给extend**************************************/
; w, Y$ p8 ]8 v' b0 g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 j9 U- U4 e* x# Q' N0 i' W) ?- }" d
1 ^+ u4 J3 Y! q
valueStr = SysAllocString((WCHAR *) L"1232");* o) Z) S. j& \8 j, k2 m$ e0 ?- A' x- h/ Y
VariantInit(&pokeVariant[0]); # _( {9 N! g6 T) _) o. C5 Z: g
pokeVariant[0].vt = VT_BSTR;# }9 ]6 f& b) d: \* ]
pokeVariant[0].bstrVal = valueStr;
4 S1 E' w; [: b. w1 D6 w- I! {
# u$ \5 r" m2 |1 }! ?% q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" m2 E5 T+ \; v+ }' V8 v) r5 Z) | VariantInit(&pokeVariant[1]); 6 w0 b" r2 q$ @6 _0 O
pokeVariant[1].vt = VT_BSTR;" D# i" Y( _. z$ d
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");# ~6 S% b8 O7 J4 S" f" B/ `) F
VariantInit(&pokeVariant[2]);
g$ W# t7 J+ E9 i pokeVariant[2].vt = VT_BSTR;
0 l9 d" Z" q7 q# D1 q6 p- o' f pokeVariant[2].bstrVal = topicStr;- ?; U8 ?6 c0 ?6 a
; c5 X7 N; P2 w6 v5 S // Set the DISPPARAMS structure that holds the variant.
! C! T; T- F8 M+ q2 I
: H& k% s" c0 P8 g dp.rgvarg = pokeVariant;
- } ?, k- ]8 M& o- q: ` dp.cArgs = 3;
, ?1 E$ S. P, u) @' h* c dp.rgdispidNamedArgs = NULL;
( D5 D. U. H2 J$ v" _ dp.cNamedArgs = 0;
1 [1 U; p$ r: [- t" P& h1 d, {. y
{* y) N7 R+ E // Call IDispatch::Invoke()8 d6 j; W- v# p3 o. p
0 w( O+ M; J: {% j9 p K
hr = m_pDisp->Invoke(0 S+ {1 f3 i, I0 r$ o. z/ i/ o
pokeID,
" Q& X0 k$ L( d1 v: c7 v3 L IID_NULL,- v1 C" x7 o% H# k" R& I
LOCALE_SYSTEM_DEFAULT,: }* V8 c. U, U( z
DISPATCH_METHOD,
3 K4 u2 W7 C0 o+ ~+ \/ D &dp,+ Q1 E5 G5 Y; p
NULL,3 \) ?0 q: q& u: G. p
&ei,# ~' E9 P x7 @: v; t6 H) |( q' g! C
&uiErr);
& o2 [- ? h! X4 _( c
7 N: N1 k& U# M; n# r& _ SysFreeString(topicStr);( k" f. B; |2 X5 T# p( I- g$ m! V
SysFreeString(itemStr);; i+ ^/ ?: H* b) t0 Z
SysFreeString(valueStr);
! P1 P' q0 h+ B; k' E 8 c* n6 S' R" Z
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???
, H* b8 g, q! J, E6 R8 q 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????9 e( ]" j/ p* E& ]) h3 a
% ?1 C( ]6 q; v, ~6 Z. h , i+ t0 [, M( C1 W7 Y! `6 Z
2.这是request的程序& ]. A7 y, p ~9 n% o4 `: j
// Request a value from Extend
3 r) _0 F- R# P; _5 ^, \# i1 M# X A //
# H0 g' S- w4 n2 I // Initialize the variant that will hold the BSTR. Set the variant's
9 N1 |% W9 @# M7 C/ f2 O // type flag to indicate the fact that this variant holds a BSTR. Place the
# g$ A8 N a/ `3 i // BSTR into the variant structure.3 L% S7 O4 o0 G, W1 }
: I" ?- Q+ w% e$ Q4 W, h0 A) O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( Y' ?9 |& s7 u- G* R. j( t7 {4 G3 A VariantInit(&requestVariant[0]);
! v! B$ I6 d, P. d1 { requestVariant[0].vt = VT_BSTR;1 E' z: C. D! v# K& P
requestVariant[0].bstrVal = itemStr;* U% [/ T3 i1 W }! S2 P
: R# V3 c) B/ J* m
topicStr = SysAllocString((WCHAR *) L"system");
. E8 t0 ~$ P* x4 v" V# k VariantInit(&requestVariant[1]);
* K0 f) W/ o" ~$ ^, o requestVariant[1].vt = VT_BSTR;( n) W+ n$ @; s7 d+ n( W' I- L
requestVariant[1].bstrVal = topicStr;
* S/ q# y3 u; J ~ " N" j3 `: A! L
// Set the DISPPARAMS structure that holds the variant.* b. h- \1 L; T- x. N
$ _! P( x0 |* m( Z# y dp2.rgvarg = requestVariant;- h1 @4 a% A! l
dp2.cArgs = 2;
( H: D8 x& C: f dp2.rgdispidNamedArgs = NULL;
( a1 d3 G9 L5 L& _$ j5 g dp2.cNamedArgs = 0;
+ C; H0 J( ?. z 8 p$ c/ G) A- D: _' ^ v+ ?7 D0 L
var.vt = VT_EMPTY;
$ Z$ J0 Q8 @- y) k2 |; P
1 |9 X. T9 Y: f; n5 C // Call IDispatch::Invoke(); {: A) t4 s+ ^7 \, B; T* v
( s, c, O- N) \8 J& ^; Y/ { hr = m_pDisp->Invoke(8 w8 F% y( ?$ |) b) y" J" O
requestID,5 W! V2 k7 X: F) R+ _+ N
IID_NULL,/ X, @: C- i- g7 }" O0 {3 P
LOCALE_SYSTEM_DEFAULT,0 [# L7 h6 l! A9 U: d" J$ y$ X
DISPATCH_METHOD,0 L& D4 s1 E' `# t M7 _
&dp2,
9 a- @+ F9 W4 l+ l8 @. X &var,& M& R$ e: Y" \6 N' x6 c
&ei,2 P% u$ l' M1 o& @
&uiErr);
4 L) o1 i& d: ?) b3 P 0 {( a& d B. x
SysFreeString(topicStr);
% @9 I4 z, a0 E! r SysFreeString(itemStr);. B" h- k' [$ [/ J2 P
请问该程序是获得extend里面的哪个值?# }5 n6 A; b9 r2 c- R/ ^ l
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