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:! w; R0 g6 J8 j
Name = (WCHAR *) L"Poke"; - W) _+ [; k- b + ?* q+ X$ j2 P$ z, f7 F' `
hr = m_pDisp->GetIDsOfNames ( 6 q/ m4 O8 L( t# t, O- ] IID_NULL, // reserved/ C, {; v* y3 i1 m8 h. z8 X
&Name, // Array of names to get IDs for0 P- L X/ u* w9 s3 q- ]7 p0 B
1, // # of names in the array , o, f7 p8 z$ {! k3 r- ` LOCALE_SYSTEM_DEFAULT, // System locale * [6 H5 |" A8 R; B9 ~4 l &pokeID); // Array of IDs to fill on output- P9 O' O, B- H" s5 p
; s0 ?" v( g# X; @/ i! L- L, B if (hr) # a4 n. r: p0 H- E" @, ^' u { & \* F3 A7 T# N5 E0 g0 a MessageBox ("Get Poke Unsuccessful"); ! l( }4 y z% h$ {# C return; / o0 d! @& M7 b/ C" P/ _* K8 \ } 0 y2 S8 V2 ^9 I: ^# y' \ v8 ? N9 i7 ?! x% n( d7 \: v6 G
/**************************传递数据给extend**************************************/ 3 t( ?( x+ c Z( s5 E; g! H- E$ [ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : V* D' K$ d5 Q1 d : m* B( m4 h1 M( ?# V, y n valueStr = SysAllocString((WCHAR *) L"1232"); ' _$ e2 M; Q7 G3 R2 d ?: g VariantInit(&pokeVariant[0]); " K+ k% X! d6 I% B q# G& O pokeVariant[0].vt = VT_BSTR;: K) {5 \ r5 E: i
pokeVariant[0].bstrVal = valueStr; 8 q3 C' _0 y- | L , K. N; d' X1 S0 Z- |+ U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - i9 i* w& |9 f7 W% d VariantInit(&pokeVariant[1]); . G* ~; v Z1 _% O
pokeVariant[1].vt = VT_BSTR;; r3 B3 k" ]0 [) `6 p
pokeVariant[1].bstrVal = itemStr; 1 \; U7 S% G" s3 x8 t) d + `: _4 T( o1 y7 e4 \$ A" j/ E* B topicStr = SysAllocString((WCHAR *) L"system");6 v n2 I) r) e0 M' j% p
VariantInit(&pokeVariant[2]); ( c7 D- ]& v0 R/ p C2 D
pokeVariant[2].vt = VT_BSTR; * Q7 u* V7 W2 q# F2 S/ A- m9 }+ l pokeVariant[2].bstrVal = topicStr;5 d! Y; H8 l$ S1 ~1 ~: ]
$ j, K. F7 o6 S9 f// Set the DISPPARAMS structure that holds the variant.; H7 C3 W/ c8 W; t& A( f9 o4 o
7 O8 X5 V1 i' I dp.rgvarg = pokeVariant;5 I/ c! @/ E0 M
dp.cArgs = 3; . D2 l# t- S6 F! o4 q dp.rgdispidNamedArgs = NULL;; d( e1 l t2 v& b' p- U
dp.cNamedArgs = 0;+ M# `+ r/ F" ~( g6 y; k
6 D5 A" f9 [9 ^* r ^" f3 V
// Call IDispatch::Invoke()5 s- H/ L& I/ k4 J2 B
" \2 O( ^ w) E3 A" u* ^( z0 F
hr = m_pDisp->Invoke(" ?( m. P' T5 Q$ o8 P6 Q. p
pokeID, # Z% ~; n) ?6 x4 n IID_NULL, ( I; r$ V! ` k* x1 A9 G LOCALE_SYSTEM_DEFAULT, % T3 U" O# R9 m4 M+ G' b DISPATCH_METHOD, # E) ~- e9 s$ E, K. E0 L &dp, 0 u2 J4 t' y0 l/ S" i1 Y0 L5 y NULL,2 C! G! t/ t, D( _, T
&ei, & K4 I; P/ W0 o% c% n" N &uiErr); 3 W3 I1 |& y" L1 {: a' L, A3 S) {! q' l' X1 a( B# n! ^+ I2 B2 ^0 o. s2 R
SysFreeString(topicStr);! s- s8 I/ J3 k
SysFreeString(itemStr); / V& d1 K- L0 O4 \0 D5 ? SysFreeString(valueStr);2 t; `$ e& C) f& P, I
( i; r) B$ G/ k7 o7 v& M, 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??? + y& M# f7 B* c+ n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????3 Z% e1 c- D3 J/ P0 H0 v) |
) D# j( H% o7 _1 M8 n3 G 0 l N# Z, i# f/ U# Y% n( l$ c2.这是request的程序 5 I6 j* J0 l* F4 M% I" Y1 h9 O// Request a value from Extend& W/ c& _6 k7 f" ?$ Y- x
// # @) x( C+ Y$ E! L. b! G// Initialize the variant that will hold the BSTR. Set the variant's, M* _2 _, }0 k
// type flag to indicate the fact that this variant holds a BSTR. Place the ! W" U; }7 y1 ?// BSTR into the variant structure. z6 ?- a4 Q9 ^4 L. F$ I4 O, p7 ^* J" V# h( v8 F- V9 D% }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: T' b1 |5 p* ]' O) G
7 ^$ D- |2 [; a2 A, k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( F0 x* V* Z! v) t8 W3 u. Z VariantInit(&requestVariant[0]); 9 g9 w) G2 f6 `, Z4 O requestVariant[0].vt = VT_BSTR;" r, J- z$ J0 E: r! J c
requestVariant[0].bstrVal = itemStr;9 [( j4 ]! r( V1 L" c* n
$ Z0 o- Z+ D# K( ]
topicStr = SysAllocString((WCHAR *) L"system"); & f6 i N5 E' S VariantInit(&requestVariant[1]); : i9 d! g# T) l
requestVariant[1].vt = VT_BSTR; ! k: v$ P, G& a# W2 q1 x requestVariant[1].bstrVal = topicStr;" |6 Q4 g8 M" r
9 E4 n. b6 u% R! k// Set the DISPPARAMS structure that holds the variant.$ i" r/ L/ V3 f4 P
+ Z- f1 _' A( N) h( z
dp2.rgvarg = requestVariant; + F/ d8 s9 _$ X/ O8 J8 F3 K dp2.cArgs = 2; 3 z- g7 P2 H+ r. G) [# P1 I: C dp2.rgdispidNamedArgs = NULL; ' ^. H3 |# Y& Q" [- J dp2.cNamedArgs = 0;9 R- B" ?& G5 A& j2 L
0 Z/ H% Y7 i3 \% X1 ^. y6 ^
var.vt = VT_EMPTY; 9 X: m# }/ j1 i$ G5 R# T9 o9 G3 b' J* {
// Call IDispatch::Invoke()% ^0 }( E [, l; x1 t. g9 f( R A& o
$ P+ C X7 [$ k8 ] hr = m_pDisp->Invoke( 7 F: |/ N! s3 X ]5 k requestID,1 B9 ^1 K: r' O. x
IID_NULL,4 M# U. T; |; v5 q. p0 H
LOCALE_SYSTEM_DEFAULT,4 |9 i! M: m5 j
DISPATCH_METHOD,$ q# s7 R J# c
&dp2, " b1 E7 J7 a q* j! J &var, : |1 j- U& X. L &ei, - |% @- a8 H F4 {3 K0 m' g* L &uiErr);( r% ?# K1 _$ k
: @; p. O. e- E4 Z
SysFreeString(topicStr);% k( z; k/ B' }( L
SysFreeString(itemStr); : J5 n' U6 m5 c6 x! J1 |请问该程序是获得extend里面的哪个值?1 D1 ]1 p" w- f/ {2 V
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????