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( b5 }: z9 S6 N' C9 L$ d
Name = (WCHAR *) L"Poke";/ w. j: Z) w, J3 w! B$ \7 v' C
5 Z* a7 I/ b! [' P% o
hr = m_pDisp->GetIDsOfNames (. s2 Y E7 T. J/ y S' c5 P V0 S
IID_NULL, // reserved6 D: s2 w6 Y5 @' e) p9 ]+ W
&Name, // Array of names to get IDs for h' s, C; p. ]! ]. ?2 x. I
1, // # of names in the array 2 `0 d6 n o2 E2 V% |# F" ~ LOCALE_SYSTEM_DEFAULT, // System locale/ G9 o* j/ l5 c0 V
&pokeID); // Array of IDs to fill on output" w2 y3 Y9 U7 O/ c
8 V6 n/ {6 s. O$ ?
if (hr)" T1 ~' ]# s4 x$ _
{3 q. u9 E9 o" \/ j3 ]
MessageBox ("Get Poke Unsuccessful"); : W; m( r( i# c4 N) Q2 y3 \( Q return; % M8 @: I" V2 U: S% F }4 {8 a! b4 C; q0 f& E& y- C) o
9 k9 }" b W2 e* J. ] I% o- b7 h/**************************传递数据给extend**************************************/ ! v# S1 Q% a" Y4 }) _4 W5 W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& S f8 N; h* \3 ^! K
" \ \! N- i7 i
valueStr = SysAllocString((WCHAR *) L"1232");2 L g5 ~; u, T( u q) v5 b
VariantInit(&pokeVariant[0]); " \1 Y3 k- n) ~8 ~8 y% b pokeVariant[0].vt = VT_BSTR;1 F* ]: z- G9 L
pokeVariant[0].bstrVal = valueStr;/ P% { { {' P7 K9 x
: F- P( N+ \- B$ _) F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' O* f- T0 ]. l# f VariantInit(&pokeVariant[1]); / k* h1 P5 T+ @! o8 g5 i- Z/ i
pokeVariant[1].vt = VT_BSTR; 1 g v+ e/ f& M! H/ H" M {3 F pokeVariant[1].bstrVal = itemStr; $ d a6 Q& a! N: W5 v6 L5 k2 p : y4 @5 C/ _3 b1 h topicStr = SysAllocString((WCHAR *) L"system"); V+ j( J1 H8 `7 }) {; h( Y VariantInit(&pokeVariant[2]); - a) i1 a2 F. l pokeVariant[2].vt = VT_BSTR;4 I- B: c4 t! Z M2 h
pokeVariant[2].bstrVal = topicStr; " }- {9 u& r! W) U# ^; R3 P, |7 E
// Set the DISPPARAMS structure that holds the variant. & l- j( U7 m7 Y \1 U* N7 {+ R4 P1 Q/ j4 m! _ ?
dp.rgvarg = pokeVariant; ! T7 J: S* y. D dp.cArgs = 3; 0 n$ V* b/ m1 M7 L dp.rgdispidNamedArgs = NULL; % o& q; F3 r8 E8 ` dp.cNamedArgs = 0; ' ?2 [5 j3 U2 Z( f ; A* T! i* G- D% r. B. }* U+ p// Call IDispatch::Invoke()' X7 Z4 k( Y, X0 j
) w T# a9 [2 c
hr = m_pDisp->Invoke( 5 ]( ~1 O; h+ B' ?) S9 B2 F pokeID,/ T q- J8 G3 ]1 ?
IID_NULL, # e! Q- o* R, J! j5 D n+ i LOCALE_SYSTEM_DEFAULT, - y5 \9 m& P/ C2 e/ N' n: O- _* V DISPATCH_METHOD, ' ^) m1 V1 v7 \7 e: j g) _ &dp, ! ^ x3 M; o+ C! G& ?( T5 M NULL, . }4 [$ _' ^. g2 h' ?6 ^, Y &ei, 8 P' A$ `1 o X& H! n% _ &uiErr); . G; H* E: H5 f' b# s4 u5 g" D0 _( _2 y. R. W+ F
SysFreeString(topicStr);9 _4 p: e- P7 w2 m8 b+ f* ~% x
SysFreeString(itemStr);3 t' e2 P T& ]
SysFreeString(valueStr);% q& b, m; p5 f* E
# l; E) g6 n8 d0 V- ^4 X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???. v, v$ f6 g9 R0 E g+ S
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???? * w% r2 Y6 u/ ]4 h . C. L$ [2 S, |# o7 c. c) t8 E* a n( z, H
2.这是request的程序 % X" \8 f6 o+ r: O- f: F// Request a value from Extend9 K4 J) u& u9 v4 i
//9 d7 ?# b: m! S* A# p
// Initialize the variant that will hold the BSTR. Set the variant's7 g4 W. D ~: _
// type flag to indicate the fact that this variant holds a BSTR. Place the4 `7 W" K! O7 ]5 D
// BSTR into the variant structure. ' i! [) Z* `, q" }! y+ o& ~ 3 v; u1 D( c% a m. B3 c! M requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 J, _7 v/ F8 E& t 6 c: _3 B3 {0 D. P6 m# @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 C/ P D {' a( C H9 n1 } VariantInit(&requestVariant[0]); ! r, M" C) Z! a$ N5 o; M. I requestVariant[0].vt = VT_BSTR; + z+ @7 S- q& B requestVariant[0].bstrVal = itemStr;. [. r% n$ N- p: S0 |
; r1 W5 m' }6 s topicStr = SysAllocString((WCHAR *) L"system"); 1 Z( J# y F. e: d9 C. N& D VariantInit(&requestVariant[1]); $ C6 n- k0 w- E, Y% q requestVariant[1].vt = VT_BSTR; 2 v. @$ J) V- K; H+ D! L requestVariant[1].bstrVal = topicStr;, k! y8 V3 }( t$ A; f
' L3 s# G4 T7 _. r% y' y" C
// Set the DISPPARAMS structure that holds the variant. - q7 a' T3 s+ k + u# P4 G, `% |5 A3 O. x dp2.rgvarg = requestVariant;# W! i& M, g4 w) x, j! m4 l
dp2.cArgs = 2; , C. a' n% A2 c% o' u$ M& b) i' R% u dp2.rgdispidNamedArgs = NULL; $ ?2 q, b' ~% [" Y dp2.cNamedArgs = 0;5 v/ l) Q% `( c
0 o v- h' X! p0 p1 K
var.vt = VT_EMPTY;* B; k' d( W- |$ U
7 I/ N0 f6 i: k1 d1 l
// Call IDispatch::Invoke() 4 n6 q9 O* ]( V: Y+ ?0 `2 T4 V5 ]4 {1 c: r
hr = m_pDisp->Invoke( ) @+ \" M9 t4 t( M requestID, + w* j9 y' [( K# | O. j0 R IID_NULL, 7 F& h. ]7 a8 C9 m6 K( ~ LOCALE_SYSTEM_DEFAULT, ! f5 Z Q% [1 |2 I% x( Z, q6 C- b DISPATCH_METHOD, 4 S) O1 {7 w1 k- `1 l7 t &dp2,/ Q- r8 g! J9 v1 T
&var,- y/ a% T; `: x/ E! Y- P
&ei,# Y W, A$ v. ^- N
&uiErr); - u4 S4 T" F* E, h8 i. w, a5 o+ C3 ^9 O$ s: F8 q; k
SysFreeString(topicStr); 3 j( d. r4 w5 D: F9 C3 I) Z, ~6 f SysFreeString(itemStr);1 g! G# ?' M* F+ D' r# \0 T1 Y/ g
请问该程序是获得extend里面的哪个值? ! S8 g! Z) y4 @; p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????