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:5 W" z' [" J8 ^. S; h. C. N! Z
Name = (WCHAR *) L"Poke"; + ^+ A: K$ y p# v/ u" n5 G; w6 z0 T , v7 b0 K z3 b8 y$ `
hr = m_pDisp->GetIDsOfNames ( 5 d% R, |; E! s I IID_NULL, // reserved 3 Z+ \; i' M, L &Name, // Array of names to get IDs for $ A5 B5 }8 g0 Y2 i# W( P7 ] 1, // # of names in the array- d* |! U! I* O% X8 B& S
LOCALE_SYSTEM_DEFAULT, // System locale $ y' f4 V q" N7 H5 l &pokeID); // Array of IDs to fill on output( O2 j7 O# u; G1 z1 U# Z
2 P" @+ ]+ z$ E2 r" M if (hr) / o0 p# ^; _5 B; L' T/ [ {; j. H4 z& W( _5 P/ z) l/ Z; D( _
MessageBox ("Get Poke Unsuccessful");, l" o9 [; f% c
return; 4 u! g) e1 s* N } 7 W4 }6 w* A7 v3 X5 z3 F7 r% I" {& z
/**************************传递数据给extend**************************************/7 V( F. K2 D' U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; }4 ]+ F1 D8 C- r
1 m; ~3 c& }& y- f! f4 I0 i valueStr = SysAllocString((WCHAR *) L"1232");. s) @8 B" v% p' ^
VariantInit(&pokeVariant[0]); 6 E+ Z/ {) w: ^
pokeVariant[0].vt = VT_BSTR;" b/ z7 n8 X# L% l/ L
pokeVariant[0].bstrVal = valueStr; $ C: z) J% K! g* K, h6 ~9 \; B! V' G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * e6 M. m; `1 o5 k3 C8 p5 S VariantInit(&pokeVariant[1]); ) Y/ V8 w$ m. y7 B9 b# J, N( r8 [ pokeVariant[1].vt = VT_BSTR;4 F- C k, i% P/ V- S) X [, p% {
pokeVariant[1].bstrVal = itemStr;' x# M9 J2 q% @4 g
# k& Z: k2 \/ J3 x0 m$ g B topicStr = SysAllocString((WCHAR *) L"system"); 0 |$ V; F# P9 A9 |3 D0 S1 T VariantInit(&pokeVariant[2]); 9 ]' E; J# m5 f; b8 t8 h& W pokeVariant[2].vt = VT_BSTR;% P4 X( ]' @& d: ?2 z5 P* }, l
pokeVariant[2].bstrVal = topicStr; 1 g. |% F4 A8 U# ?- n s/ j, t4 Y U8 g% ^9 Q8 |2 P# d6 K! i
// Set the DISPPARAMS structure that holds the variant.+ O u- f9 G+ J( m
: Z8 f E! G% Y; C8 g; t8 q; ?, z9 ~// Call IDispatch::Invoke() + ~2 G* l! l3 r f s - \9 ^! @( ] e4 @( q* Q hr = m_pDisp->Invoke( 5 U" S5 b# r3 v/ g3 K- y* J pokeID,$ S# O$ Z- S* H5 N& w
IID_NULL, 1 U9 N: i; @2 q$ |% x d7 j2 \7 r LOCALE_SYSTEM_DEFAULT, $ @* n; ]: M; {- n' R8 j DISPATCH_METHOD,4 n y: ^) @7 g. d2 b6 s
&dp,+ g! I& B3 H# r; u% a
NULL,: I* f! B% f' g) T7 f9 a
&ei,5 D( i" z. F/ i; Y+ s
&uiErr); ) o) |2 W$ m3 @/ u. g# X6 \. g0 p! V2 n1 @6 e
SysFreeString(topicStr); 2 ?3 f5 d3 D& D3 J$ v7 R6 a7 J- C SysFreeString(itemStr); - T& C6 c7 ]6 n SysFreeString(valueStr); " b$ k5 x7 ^' ~& N6 s3 `9 R: a ( Q8 p' ?6 f2 _0 y4 O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???: O; a2 a# X1 q. ^: 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????) ~, f4 M* @- ]. @- c7 {6 L' q
! |7 v- o0 z6 Q4 w" N8 s$ w 7 _4 b |& o2 Z# M# E$ ~2.这是request的程序# D) T! T: F% [, D0 \, c" v2 N7 v
// Request a value from Extend % m* E- R; f, a. [8 j6 W+ p7 l0 ^// l \! \5 c6 ]// Initialize the variant that will hold the BSTR. Set the variant's + O% [# B' J7 p// type flag to indicate the fact that this variant holds a BSTR. Place the! L- I* I' r4 @+ Z+ K' H3 C
// BSTR into the variant structure.4 D$ Y1 S7 G# d$ o
3 X8 f) _- R" Z8 N; b# S0 ]( A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 P* f; @! {- f I y % V; G% u# g/ z' i. o- B b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* @- T7 _" G+ b
VariantInit(&requestVariant[0]); / g0 S- _6 Y$ H: a# Q
requestVariant[0].vt = VT_BSTR;& ]5 J* {5 g! A4 y' R; @8 O% d
requestVariant[0].bstrVal = itemStr;1 s7 T8 |$ Z# Y) f* ]+ t7 m4 |0 _
" b" P4 O0 z7 M/ {4 ^
topicStr = SysAllocString((WCHAR *) L"system");8 X3 c2 G) k8 L. `
VariantInit(&requestVariant[1]); 7 `) L1 Z0 f. x1 Y+ q requestVariant[1].vt = VT_BSTR; $ q) ]* Y* E7 f6 ~8 [ requestVariant[1].bstrVal = topicStr;2 ?5 E H ?( K- R3 ]6 g! Y& F
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// Set the DISPPARAMS structure that holds the variant. . {) k2 h" T" C. ]8 a; S) [8 d' \- c* |+ e
dp2.rgvarg = requestVariant; 6 }! `% Z( y8 J1 | F( {! v5 c dp2.cArgs = 2;; a$ u+ ?% Y" @" L" |/ V
dp2.rgdispidNamedArgs = NULL; : p z6 V- r) E3 w( T; f dp2.cNamedArgs = 0;; D* T/ Y0 O9 M2 K s- \& `2 K