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： / h. k! e& D' T0 c5 _4 B3 \4 r3 ?Name = (WCHAR *) L"Poke";- Q; }2 y- e8 `% M
& [( i6 i- V# [0 r1 i3 d9 N hr = m_pDisp->GetIDsOfNames ( 2 w2 x' b- u, I" z7 C0 x1 @+ a IID_NULL, // reserved* J; p$ W; ^, |9 o/ _. X
&Name, // Array of names to get IDs for + ]: V8 {. r4 i( P* V1 M( U 1, // # of names in the array ; J9 Z( n" G2 g+ Z$ ? LOCALE_SYSTEM_DEFAULT, // System locale6 [- R; a D3 M& U
&pokeID); // Array of IDs to fill on output: t8 k1 k; ?2 \) O; H" Y( N
( {7 N" z. ]: [1 D9 c* E3 O; v
if (hr) 9 i. N4 a. s- {3 P* E {5 x& a$ J. `- V: V: T& v
MessageBox ("Get Poke Unsuccessful");( h2 E ?+ h6 n) \/ @+ F: z
return; 4 ?$ ]$ ~% Y3 b1 L) w2 l i }; p$ c0 F+ ^' Z: y R
$ u. d. q9 G* d N1 f% W7 h0 _1 Q/**************************传递数据给extend**************************************/3 w* C% [+ W5 u+ g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - [# V. j8 ~: G) S" @ b2 g 6 U/ u4 v0 }3 } valueStr = SysAllocString((WCHAR *) L"1232"); 0 ?' S6 q5 ^9 j1 W) Y, R" c VariantInit(&pokeVariant[0]); 4 q9 R) M. K5 U' s) Y: g pokeVariant[0].vt = VT_BSTR; % w% Q" Z1 n' S+ M1 d pokeVariant[0].bstrVal = valueStr;3 Q0 y; o$ `, v. j
. Z, d9 B5 O+ R. [/ @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + B; v! u9 m7 G5 Z9 P VariantInit(&pokeVariant[1]); ' l8 v9 | u3 ~, H1 r( T pokeVariant[1].vt = VT_BSTR;5 J& P. C# W2 k* G# i9 J( [
pokeVariant[1].bstrVal = itemStr;9 j t4 ~6 S. q
/ q5 \6 w! n& K3 Z0 v" W
topicStr = SysAllocString((WCHAR *) L"system"); ( k- `' v% F6 a VariantInit(&pokeVariant[2]); . s/ m) F, P/ M6 ?7 G
pokeVariant[2].vt = VT_BSTR; $ o; i7 B. e- k8 j" } pokeVariant[2].bstrVal = topicStr;; i! |' N7 K4 @$ ]
( D r* Q& g0 Z$ J' [! E// Set the DISPPARAMS structure that holds the variant.9 t- ]) n) p$ h( m
1 f% q L: K$ W6 M1 d8 C
dp.rgvarg = pokeVariant; 6 |8 G3 I9 h2 R, x4 o dp.cArgs = 3; 9 L" w& {1 X" Z d1 s9 ? dp.rgdispidNamedArgs = NULL;0 h- n/ h3 B- ~" d1 M( T4 f
dp.cNamedArgs = 0;7 n& g+ o) F; a7 {
h9 R& g5 V* d' c% a- |/ W/ J3 Z
// Call IDispatch::Invoke()9 M+ L6 ^- x4 e) P1 \
3 K& W6 f' }# u# H" Z3 ^; o
hr = m_pDisp->Invoke( + S* H- ~! b# _% b, R, g pokeID, ( u: y: ~, \2 X6 w! ? IID_NULL, # o( X) X7 H6 r6 o0 n% _ LOCALE_SYSTEM_DEFAULT, * u% j; F6 s5 g5 ]) \7 b7 @4 l DISPATCH_METHOD, 4 { j0 [$ {# V: p5 K% t &dp, 7 s# C2 S% @- E' \( _ NULL,8 p4 M: t- S- m; Q+ X4 w9 r
&ei, $ C# u7 ]& o z: Z( Y" N) H &uiErr);$ O0 A) A8 s2 X8 W& }" E4 H
; Y2 U" n- S- d( D4 f' N SysFreeString(topicStr);. k. Y" E- O1 E* n
SysFreeString(itemStr); 8 X! Q1 s& M3 @" H& Z7 `8 O2 w SysFreeString(valueStr);5 O7 Z5 o p9 a+ o* k/ d |% V
' m+ c- X$ L8 ^; L# _ d5 u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？？？- j0 z" b6 }0 [8 g3 A
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？？？？" _. i8 F9 z9 m5 l) Y
' t+ }7 B. `3 @. G# g
) @* e9 }: F5 c! U7 H7 l2.这是request的程序, V2 w* R1 a/ W6 l0 h3 \2 e
// Request a value from Extend 5 f! e5 ]( ~0 \! E: \/ b+ x// 3 A2 p" H$ h6 c# m% k i3 _/ f0 |// Initialize the variant that will hold the BSTR. Set the variant's , \0 M9 C3 T/ u// type flag to indicate the fact that this variant holds a BSTR. Place the - e: K% V7 s: C// BSTR into the variant structure. 9 `2 g0 W. | y5 l* T* r7 n* Z* B0 j4 O% x
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 @7 V0 i' A, U$ J$ l% a
Q& U) e3 N( _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 {2 D3 f6 V* Q# W3 J8 L
VariantInit(&requestVariant[0]); 8 C. A6 l+ j8 Z3 r$ H* s6 l requestVariant[0].vt = VT_BSTR;6 p8 I. T" e. m1 _1 W( [
requestVariant[0].bstrVal = itemStr;* b/ Y( t" h! p) e) q: M6 }" a
) J1 j, |# d" i/ M9 f
topicStr = SysAllocString((WCHAR *) L"system");/ P0 `1 T9 ?$ {! F/ H
VariantInit(&requestVariant[1]); . E7 d' {: Y3 G- ?
requestVariant[1].vt = VT_BSTR;6 w( ~, ?" q5 @' \+ a9 v* o
requestVariant[1].bstrVal = topicStr; 5 w F% S/ E$ |# |" F/ O5 [% ~7 P$ Z( C! r9 [6 x1 R
// Set the DISPPARAMS structure that holds the variant.# D; d2 y7 t0 S! W0 q
发表于 2008-11-25 19:37:03
