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: . v, ~7 o; [( x7 [: OName = (WCHAR *) L"Poke";2 R( T* N; d y" J
7 [2 c7 o* c) B' P7 [
hr = m_pDisp->GetIDsOfNames (( p( u9 s' Q; i+ K
IID_NULL, // reserved ( S9 F$ {1 b9 r &Name, // Array of names to get IDs for; j9 F5 G$ N9 S5 [7 r
1, // # of names in the array , X' E: o* h+ m" a/ s LOCALE_SYSTEM_DEFAULT, // System locale 7 j5 w/ K9 N: @! f5 _ &pokeID); // Array of IDs to fill on output/ k, v6 R h: c$ I0 F1 @1 n
3 j2 i- G/ E v1 l
if (hr)+ }. C$ L5 Y0 G6 |
{ ! Z) x: k" L2 @# c$ ]- e MessageBox ("Get Poke Unsuccessful"); / A% s8 {0 k$ I$ D, u return;9 Q+ W: |, k; Q4 a: _+ Q/ O3 L
} 4 L& ^5 d7 ?3 R( u( A' P ! b% [4 K: D" R$ r1 y% Q% X/**************************传递数据给extend**************************************/ r( M& F L" P/ S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 E% k4 `2 ], b) y. O
4 X6 \" g* d7 W9 M7 A% h Q; s
valueStr = SysAllocString((WCHAR *) L"1232"); ) Y/ z0 ^6 @& c+ h) c( P VariantInit(&pokeVariant[0]); ) u9 ~# c7 J2 s- {
pokeVariant[0].vt = VT_BSTR; " \, u+ U3 ]4 Q* v; D0 o0 `/ A pokeVariant[0].bstrVal = valueStr;: O0 ?# m2 R' r5 S
) S8 m* `+ @: H, l* Y7 [2 @% u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - t( F2 \: w6 V; p5 k VariantInit(&pokeVariant[1]); 2 R2 z4 f3 l W" y
pokeVariant[1].vt = VT_BSTR; ( n5 ?) J0 |: X' q* d) t pokeVariant[1].bstrVal = itemStr;8 D9 p* v# u+ G5 h% d [
b. j2 Y: M' D! G" n, O2 L4 T& p- U
topicStr = SysAllocString((WCHAR *) L"system"); $ ]! X) F* \5 I VariantInit(&pokeVariant[2]); 6 s6 n$ q" o+ z0 ]% J0 B pokeVariant[2].vt = VT_BSTR; 4 g$ Q! f( Z6 T: e( N3 L! L, X pokeVariant[2].bstrVal = topicStr; ' p! i# m0 F+ z1 H* Z; p9 @3 b/ {+ \3 s
// Set the DISPPARAMS structure that holds the variant. ( D5 ]5 r; J6 M+ A3 {! A, }2 T. U. O6 E2 k) |, n7 C, M
dp.rgvarg = pokeVariant; 0 V! a8 ^3 e7 ~9 m6 b5 ? dp.cArgs = 3;( V! o T/ `5 {+ b7 p2 G* d
dp.rgdispidNamedArgs = NULL;- ~ i% I' C- ?
dp.cNamedArgs = 0;: Z, b( d7 [7 R5 e
+ x9 V& Y7 T* C4 p# @9 V
// Call IDispatch::Invoke()5 P; m% ?0 z# [/ k3 d; }
1 W M3 @4 |% I+ Y
hr = m_pDisp->Invoke(3 m, s) ]: f) x' u. m
pokeID, 4 L N" S- [' A9 b# F IID_NULL, 3 q& c/ b3 Q" h- U/ r# {, K LOCALE_SYSTEM_DEFAULT,# \& p: q8 B9 l, l2 X
DISPATCH_METHOD,6 P1 E% h8 H( q! e; q3 T0 `
&dp, * H! `, y2 `3 r- O( Z NULL, 1 ]8 R$ A# i3 |+ a/ z8 G &ei,( T% K* I& B4 W% T5 a, K
&uiErr); 1 }9 F' D0 P( Z1 F/ P8 z7 o9 l9 a! ]* s! Q! L
SysFreeString(topicStr);. Z6 f0 H% \( p- U, g
SysFreeString(itemStr);1 P3 O% _$ K) x; z/ C8 ]
SysFreeString(valueStr);: @8 q; H1 y6 a$ R
0 }% `, J- P: _$ U; l
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??? & w5 I) a8 u9 m% ^) `3 s- C. 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???? 2 J0 B/ P" c3 x7 O( G% T6 e/ |" K' n5 n1 Y- o
! @3 _3 p) z; T$ [2 j6 Q2.这是request的程序* N% H' {7 g4 q
// Request a value from Extend+ A; B% q' h; M* _
//* N" B1 ?4 F1 b/ e+ p4 g
// Initialize the variant that will hold the BSTR. Set the variant's/ v3 S/ b- U7 E8 b
// type flag to indicate the fact that this variant holds a BSTR. Place the ( |; l2 | J- x6 p// BSTR into the variant structure. . y3 j/ m! G% r+ ?! L- n7 h* J+ ?' T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- j1 h( w* q( _) P( J
' n4 v. F7 f9 {+ I. m' j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- d2 J7 i5 u; p2 I8 [8 g
VariantInit(&requestVariant[0]); ( X& N& f; G3 v E, B+ w
requestVariant[0].vt = VT_BSTR; 0 M" k4 z, O. @ c$ f% ^* @ requestVariant[0].bstrVal = itemStr; 7 f& c( K- ^( M1 ?9 {5 I 5 ]: p$ I( f9 O topicStr = SysAllocString((WCHAR *) L"system"); 9 s# q5 I) [7 \/ _ VariantInit(&requestVariant[1]); 1 v/ F; {1 b: f9 G( y" C1 Z {
requestVariant[1].vt = VT_BSTR;2 b0 U0 |3 X. M) s) e, H
requestVariant[1].bstrVal = topicStr;: i' K' t8 V$ |! A6 m
3 B" a5 F; ?: s* w/ u
// Set the DISPPARAMS structure that holds the variant.& Q2 ?' D, c0 ^, D6 M
" q% i _* Y% i/ k1 J, L dp2.rgvarg = requestVariant; 9 R. Q& p6 Q2 G dp2.cArgs = 2; $ s& ?; @6 N6 l6 W dp2.rgdispidNamedArgs = NULL; g# P% L9 R% T+ N
dp2.cNamedArgs = 0; * {/ |- ?0 i4 J# ^0 Y, o9 o/ P* e% e9 Z1 \
var.vt = VT_EMPTY;0 C+ |- p6 A/ f$ K) W& J
3 R6 c5 D, E# W// Call IDispatch::Invoke()* J8 U0 |" q, b3 V ^
& r4 [ P# B7 ~# t6 P1 c$ U( n. Y
hr = m_pDisp->Invoke( 7 {: Y- A' V9 A0 g% Z$ Z' G# i requestID,$ o$ K0 t! f9 K
IID_NULL, 1 n( w) B4 X/ ^4 t' C LOCALE_SYSTEM_DEFAULT,& X: F7 Q6 S+ Z0 v) \
DISPATCH_METHOD, % h; z2 I" ^5 o& a6 ] &dp2, ; z5 X" X1 O' i2 e0 H &var, & ?% {6 ~8 a l8 H4 ` &ei, . v9 @. ~$ N" ^4 K. L &uiErr); # Y# R9 |, |" f% d2 R; e' U* a+ I% J! ^3 A* {; G3 e
SysFreeString(topicStr);+ F) }" w/ c* A& p" O
SysFreeString(itemStr); 1 K. r: G* r3 @1 T请问该程序是获得extend里面的哪个值?% w0 e) W. {1 o6 U' C
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????