|
|
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:+ S/ R7 L* o8 S1 X
Name = (WCHAR *) L"Poke";
9 p! s/ z( J1 j" _9 k$ _( [ , O) P9 k) [) T8 }2 s
hr = m_pDisp->GetIDsOfNames (4 p9 o; X& w& f" v. b/ f
IID_NULL, // reserved& ^7 T0 k& m9 V2 x( W- C
&Name, // Array of names to get IDs for
( X7 o# R( ]# H2 Q* |. N' C 1, // # of names in the array
% n# V3 a O! o9 A LOCALE_SYSTEM_DEFAULT, // System locale
" L( z' i) v; ]1 q/ u# x2 c! z3 K# c &pokeID); // Array of IDs to fill on output
) f" m. V) A/ }2 B5 ? A! c
0 @% W) G: \" t1 M; h if (hr)& R0 e7 z1 b( ^! f9 [0 a9 N: z
{
6 S0 Q0 d+ C i0 }1 d& q; H MessageBox ("Get Poke Unsuccessful");$ `& b: x1 ^1 Z2 a1 v
return;3 `* b$ _% I9 _3 E
}
1 v5 N8 c) s/ c& D. b/ p
/ ~- U$ y4 Q; \# R, \* _; @) a/**************************传递数据给extend**************************************/
& ^1 J4 h4 d! T! x1 K5 E, a: a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 Q6 u. U$ \* E) I: W
5 J0 V# _8 O) P& t2 d valueStr = SysAllocString((WCHAR *) L"1232");5 _) |9 E l1 j/ `
VariantInit(&pokeVariant[0]);
% a( ]# S' X7 n8 K$ s, { pokeVariant[0].vt = VT_BSTR;
5 G4 T8 _3 _9 `7 Q4 j- e pokeVariant[0].bstrVal = valueStr;
3 c! }9 }2 E7 ?" i+ W* L4 {4 h* B2 P% l3 r& T" i5 k+ l) m$ s( t* W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
5 B; a# m6 C3 W9 X X I q O VariantInit(&pokeVariant[1]);
7 g f( n0 u; |" T' c pokeVariant[1].vt = VT_BSTR;
( E) T, p% b a7 \1 s pokeVariant[1].bstrVal = itemStr;) w6 [' G9 Z, S2 N. M" Q
# s, X1 g. u) Z; @. ?* G topicStr = SysAllocString((WCHAR *) L"system");6 f# h" p. G8 S& r. n: d
VariantInit(&pokeVariant[2]); % N! a$ C& C. K5 N; a5 h
pokeVariant[2].vt = VT_BSTR;
3 ^* p# H6 G0 \5 h1 M pokeVariant[2].bstrVal = topicStr;
9 i1 [2 b- E! j( w L3 {( C
A* Q9 q% Y# B) B) B2 M// Set the DISPPARAMS structure that holds the variant.
# {. E$ ?/ C; u0 F. p" }$ `; B; X3 r/ h/ h1 i
dp.rgvarg = pokeVariant;
$ ^7 _ g: d7 v7 q3 q# V3 b- n- t: _ dp.cArgs = 3;8 W W$ E( Q) |1 s; Z) p
dp.rgdispidNamedArgs = NULL;9 c0 D0 u" y/ ?1 f- [1 \( x2 N% V
dp.cNamedArgs = 0;
3 H; A4 _, y1 L+ r* u# P6 W+ i e4 l' p: G, J! M
// Call IDispatch::Invoke()
p9 w/ q1 }+ w& m& n7 T/ ?
& H4 W6 u, h$ c _' \$ { hr = m_pDisp->Invoke(7 l1 m q/ {0 ^ K7 x7 Z3 `
pokeID,
$ h# p% A; y9 D2 d2 i IID_NULL,$ h K) X! h# ^# K' e3 y
LOCALE_SYSTEM_DEFAULT,) [% ~: ^ s0 t: l& o% d
DISPATCH_METHOD,
" b9 P- K4 s% x# |$ O7 q &dp,/ H9 O& |7 U7 d X
NULL,
& p" a9 [3 S$ p! O0 r v# ` &ei,
: C7 g/ Q" B( g0 H( p# g" V6 Z &uiErr);
6 a7 p9 H# Q, p. R8 a! n7 ~5 l: z7 R9 E9 w' J3 v1 I3 h
SysFreeString(topicStr);; `( p3 @# M2 B# z8 b
SysFreeString(itemStr);
# ?0 n$ y. g @. ]" M SysFreeString(valueStr);. a( J( [- Z$ c! }
& r) l$ G6 l+ Z+ f/ m" I8 y. f
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???
7 P* F# q' X( k* R3 R2 F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????
$ s6 V6 V5 a3 s5 E/ P. q3 u8 t, H7 N# j! x f
# x. M/ {1 G+ a$ @9 L3 P- E
2.这是request的程序9 ~) _% d/ u; c( S6 q0 D9 I( m' h
// Request a value from Extend8 m5 W' r/ b0 J
//
; M; s9 ~( q/ D( L, _5 c// Initialize the variant that will hold the BSTR. Set the variant's% W% B, V. @/ F! ^$ N' j% r' A
// type flag to indicate the fact that this variant holds a BSTR. Place the# O6 z: @4 N* R. @* h4 R0 P2 n5 K
// BSTR into the variant structure.
4 x. ^9 }3 _5 y" ~! I( @1 K4 ]9 k
- e5 Y W' P- K5 G* r* z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
# R Q" z3 H% D. p G/ T
$ u- _3 ^. j0 r+ r1 S" Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 q t5 u/ |- J2 Q3 F. K VariantInit(&requestVariant[0]); / z$ O' w8 Y# i |5 n5 ?" O8 h
requestVariant[0].vt = VT_BSTR;( b* w) [; n1 C* m% n
requestVariant[0].bstrVal = itemStr;
) {- ?! V% c1 Z {' ?9 `% Z8 L( M3 O- m+ \
topicStr = SysAllocString((WCHAR *) L"system");9 H3 K8 Y, j$ u3 c+ J" [0 N
VariantInit(&requestVariant[1]);
4 }/ q* @. M8 O9 z- u requestVariant[1].vt = VT_BSTR;
/ p" B9 O W" m6 I, D- y% V% Q requestVariant[1].bstrVal = topicStr;4 n/ Q. A+ @' ]; c1 F4 a
1 I0 p1 n: N% ]# Z0 G! b6 O/ ~( t// Set the DISPPARAMS structure that holds the variant. b+ i/ n5 D6 k; \0 O
4 B! c( |# E9 x: [9 x dp2.rgvarg = requestVariant;
: Z: Y( |$ e8 V2 @3 I3 B dp2.cArgs = 2;
' x0 }$ P4 ?( {1 u- }+ J dp2.rgdispidNamedArgs = NULL; z0 N9 j1 p& Y4 O0 T8 \
dp2.cNamedArgs = 0;+ h5 N! m9 r7 L& K( M, S2 V% B
* {! L. r: p8 K: B0 ?; a var.vt = VT_EMPTY;. ]9 M* u9 E) B. B, B5 V
) l0 m* i1 B" |) b5 m# ]% @' @
// Call IDispatch::Invoke()
2 p% }0 B# B2 R5 g$ `! G; G8 u5 _
( U8 }2 X$ L% `8 A hr = m_pDisp->Invoke(
& C% q% v' Y6 Y# l! y5 `8 Z requestID,
1 D+ Z. @, ]9 S# p IID_NULL,
2 s6 v+ u9 u7 \2 z; V LOCALE_SYSTEM_DEFAULT,& h' }5 _$ S& X& z. r* E/ Z: `
DISPATCH_METHOD,% B* D, E$ S: _( p4 f! X
&dp2,
6 J5 K' I3 C* i &var,1 W6 u. U, t+ L0 Y# T
&ei,
# H1 b% l( ?- Y" M5 A) G &uiErr);0 Z8 l) r# L) K
; @9 {: ~5 `2 }
SysFreeString(topicStr);
5 k- L w% J' F1 Y4 I SysFreeString(itemStr);2 z8 ?6 a6 s7 k/ W) {' t6 N0 s5 e
请问该程序是获得extend里面的哪个值?
: Q! [5 J6 @1 [# V: o+ B( u- @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???? |
|