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 b4 b0 T, M$ v% T* p, FName = (WCHAR *) L"Poke"; 8 \& U- A; x: s P " k% V+ `, G1 Q H* _0 C6 s hr = m_pDisp->GetIDsOfNames ( ! M3 ?5 c6 I) t& o6 r) j# C8 Q4 | IID_NULL, // reserved5 C+ B* z0 M, D4 f
&Name, // Array of names to get IDs for. @: S+ z% ]* i! r n
1, // # of names in the array9 Y6 J4 c2 M, F1 G; f6 G( [
LOCALE_SYSTEM_DEFAULT, // System locale: c% F5 ?+ A! M6 K5 c
&pokeID); // Array of IDs to fill on output1 j' v4 X% m% p
$ i. W0 z/ h9 |4 L7 Q! Q/ _4 t if (hr)- C: L- J& W n; u+ ]' ?
{ , e3 i( T% v; l9 k; K# [ MessageBox ("Get Poke Unsuccessful"); % H( { S& g* G- j# x* Q return;- e, {: `' }5 V. G1 u8 o( B
} U1 t. \% f4 w2 M& E& J. L: O
* S9 B/ X7 P; A0 `& ^/**************************传递数据给extend**************************************/ $ M5 |) _! U% f# }/ }. M7 j( p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 h- I1 V( t' L6 r) g" J$ C9 D0 r 3 j6 r! N6 ^( j6 c
valueStr = SysAllocString((WCHAR *) L"1232");; Q, O2 n; j# t+ K& a# P/ F" H# a
VariantInit(&pokeVariant[0]); ' C* k0 }+ n; z4 ~
pokeVariant[0].vt = VT_BSTR;$ d4 d% J6 m5 Y& o
pokeVariant[0].bstrVal = valueStr; 2 t0 f8 D; @1 M$ [8 I: H: Q. `% k+ ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( n2 }, t' o7 \9 _ VariantInit(&pokeVariant[1]); " s4 N- [! L6 U5 P, v1 D R
pokeVariant[1].vt = VT_BSTR;" Z/ M! O! a* V/ F
pokeVariant[1].bstrVal = itemStr; + T% N4 X$ B- y- l8 O, f" Z# y3 j4 }1 s _6 e
topicStr = SysAllocString((WCHAR *) L"system");1 c" x l3 x/ |
VariantInit(&pokeVariant[2]); $ S! j- H2 S! y6 n* u+ W2 Y pokeVariant[2].vt = VT_BSTR; 7 G* K1 s; ?+ p pokeVariant[2].bstrVal = topicStr; . S1 ~) ~- I& S) e& W2 d. _ 8 ~* ^3 }( R" C8 [1 Y$ Q# g// Set the DISPPARAMS structure that holds the variant.$ T! E1 `% W, O# V
# c" R' C, f. q& G1 }& `" t
dp.rgvarg = pokeVariant; 6 u# I- r n. d/ W( H dp.cArgs = 3; " a% ~: n6 E: K I2 E dp.rgdispidNamedArgs = NULL; , K6 |. b( r9 q+ I5 f. f3 P2 U dp.cNamedArgs = 0;( O: z0 g7 w u4 o @, {
6 g. A/ q i; q9 J9 e// Call IDispatch::Invoke()/ E) J! J# F; F2 S' h& i0 A/ O
# K/ g6 {) j% C/ Q$ i$ C hr = m_pDisp->Invoke(4 C% q5 S! m( r1 }3 a
pokeID,3 F* o$ M; W0 v$ r
IID_NULL, . f0 h7 w3 c' A0 X( X LOCALE_SYSTEM_DEFAULT, U+ B. }5 U% J8 k! k! g: g$ C DISPATCH_METHOD, . ?0 R0 [3 w! m6 C& d, a &dp, 9 b7 A Q' ], W7 S5 _: r NULL, 2 p, `' r9 }% V+ X: B+ n &ei, " U' W& H" n. _/ L2 K &uiErr); 7 F6 |6 A# i7 r) E1 k; e, o 9 U3 h1 }( o/ P SysFreeString(topicStr); # n9 x* g( L' I& D' y1 g9 |8 u SysFreeString(itemStr); 0 j, ]; w) _9 f* c SysFreeString(valueStr);5 H9 F1 E1 A t
/ P5 E0 ^6 H3 Y. Q) k. a5 M v' \
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??? 0 u# n/ c9 @# b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????$ b6 }' ^ B- u3 T7 N3 d. a
* ^3 ]9 Z- W9 v$ O& I% a( s # Z0 H" k, g/ |2.这是request的程序 " ^# N- o4 k: A- a! e8 y// Request a value from Extend0 A$ t+ r0 m$ {9 h1 F2 u0 B) x. ^
// 0 y8 o+ z, Q% G9 e// Initialize the variant that will hold the BSTR. Set the variant's: H# _# U1 x. L W" x# O3 b/ F2 ^/ S
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 ^& _/ u, p, m9 U7 X: }// BSTR into the variant structure.% i, t; c) w7 I# q3 ~
5 m! `' ^* u8 n# |0 L+ [/ v" s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* m& ~5 z# y( F8 A+ c0 j
) B3 |3 B C0 F6 o! z( e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : ]- c7 @; u1 \. { P VariantInit(&requestVariant[0]); # L/ j/ u. G- `$ q# \$ @( ?& C
requestVariant[0].vt = VT_BSTR;5 N% U# y. D" g/ E" V$ E8 p9 x' E) y
requestVariant[0].bstrVal = itemStr; 5 C' J# t/ ]& ^0 z6 ?3 x+ ^7 g; K8 n2 Y6 W3 T# u" R
topicStr = SysAllocString((WCHAR *) L"system");6 M6 ~- P' N9 x* g! t. v
VariantInit(&requestVariant[1]); / J+ a$ ?" G+ i7 _# W4 Z4 l1 T
requestVariant[1].vt = VT_BSTR;; v2 n# w Q7 j, B0 ~7 Y1 S
requestVariant[1].bstrVal = topicStr;6 u7 b7 R5 I0 S7 G0 O* Q' {
# l& m6 Y+ m7 Q4 w' m! m- U5 F
// Set the DISPPARAMS structure that holds the variant.2 p# Z5 e9 x4 N1 M9 k I
, s, G8 Y; Q: z7 a6 q0 |/ H
dp2.rgvarg = requestVariant; 3 J! P+ [. j. c) L: \ dp2.cArgs = 2;1 G2 `' N1 U8 L9 D
dp2.rgdispidNamedArgs = NULL; / O* _+ ~9 ~4 _! S dp2.cNamedArgs = 0;9 T( ~: f; |3 p; d5 q
0 M- W. B( @: v& m- d$ ~& Y* \
var.vt = VT_EMPTY; ) P, L& W3 p& z ; A3 V' l, U2 Q. \// Call IDispatch::Invoke() + G# K% b% E( h, F6 A# ]: C 9 x. J& U+ a/ S6 d hr = m_pDisp->Invoke( * Q0 w) @9 ~; L1 Z! I requestID, ' J2 P) ?6 u4 V9 \$ N* [1 ~# I IID_NULL,1 d$ f/ D& }# V
LOCALE_SYSTEM_DEFAULT,( @9 |$ U( N7 C$ v+ R1 d+ o9 V
DISPATCH_METHOD, 6 K1 H0 O5 h& @# x, ^+ j &dp2, * X9 t1 K/ I' y$ V* c5 g &var, & i' R8 b: {- y4 M &ei, & `7 ~ @/ D( P- d1 Y+ d &uiErr); 7 L) V( s3 K8 [5 R' O2 z' `" C. p& o, I4 A; g- c8 U/ e. `
SysFreeString(topicStr);- `- J% b" I5 R9 \7 t( a* F
SysFreeString(itemStr);, j& h+ Y, m0 Y1 \" W! |2 F
请问该程序是获得extend里面的哪个值? @$ X' }0 ^0 G3 m2 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????