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:8 B: C; r& ], X$ G
Name = (WCHAR *) L"Poke"; 7 v3 Z' q+ O$ Y$ O! G; @ : n% _( V/ N) ^/ E1 C0 F hr = m_pDisp->GetIDsOfNames ( * l4 F. A4 x! b/ y1 W IID_NULL, // reserved9 C0 J; |% n/ F
&Name, // Array of names to get IDs for( U: v p# x6 n8 a I
1, // # of names in the array + g b$ c/ H& @5 M1 P" f LOCALE_SYSTEM_DEFAULT, // System locale; s( K* O3 ~+ j& n b9 p
&pokeID); // Array of IDs to fill on output # ^" J; W5 c& {" ~7 Z1 A$ G2 ]* l 0 e+ @+ J c Y& \4 L' | if (hr)' R# O& X. s7 @, y S
{ 7 p) c* ]* j3 j1 z MessageBox ("Get Poke Unsuccessful"); 5 G; Y' Y# ]# e: } return; $ U* d a) ]3 X6 j8 u8 f }9 _ W y& O. u
& R/ m/ n/ S+ [; J/ C/**************************传递数据给extend**************************************/: C" R/ f& L9 H% P/ y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 K! i. L4 r- g# l6 B' ^ . L) ]4 T1 ~- L
valueStr = SysAllocString((WCHAR *) L"1232");, E G H( d8 E ^4 i/ W3 m
VariantInit(&pokeVariant[0]); 4 J# X* V, |+ y+ ]" [8 d
pokeVariant[0].vt = VT_BSTR; # y& g4 {2 K& R2 S& A8 D0 k _ pokeVariant[0].bstrVal = valueStr;8 r7 f [& X0 G( Z/ j3 L
5 h3 R2 [; [; k6 `, E" Z0 P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* w" R! W( r: Q, W0 u
VariantInit(&pokeVariant[1]); 0 o5 F$ v# s4 U( x
pokeVariant[1].vt = VT_BSTR;# B- ]& X0 T7 ^' ~$ B2 f
pokeVariant[1].bstrVal = itemStr;' ]3 [4 I6 T, _# k3 h
5 |) R# I' S3 o W7 ^9 M: J topicStr = SysAllocString((WCHAR *) L"system");% x4 s* a% k4 A9 {7 B- c, g" q: n
VariantInit(&pokeVariant[2]); & ^- F# A( T! P6 h pokeVariant[2].vt = VT_BSTR;( y7 ^9 @ b. z8 F
pokeVariant[2].bstrVal = topicStr; ' i# R# i8 i0 z1 ^$ F) m 4 `0 G( X4 k1 x2 u5 Q5 L( f// Set the DISPPARAMS structure that holds the variant.6 e# D; I c& A0 T7 } e* U! z
! n( l: d2 e# n' s; U. a! y! y
dp.rgvarg = pokeVariant; $ S. K" ]0 ~+ [7 l( y dp.cArgs = 3; : Y9 W( g( U: K9 D& M dp.rgdispidNamedArgs = NULL;9 s7 F; M0 [) K# l: A5 k) [4 L
dp.cNamedArgs = 0; , n' @* U- c0 U$ c+ X" @9 G& x7 k& k# U
// Call IDispatch::Invoke()( Q+ p" M" f4 U+ H; \
. K" j- [# Y6 d4 K$ ?- m1 r
hr = m_pDisp->Invoke(8 s% R. S) N$ L) [+ f7 O! x/ j
pokeID, % m' ^& A4 d3 [* ^! E4 r' g) W IID_NULL,! w, O, P! ?& `2 h f- ?6 z9 o
LOCALE_SYSTEM_DEFAULT, 5 p# ?8 Q+ f8 H2 ?5 s, K DISPATCH_METHOD, 5 q. Q) v6 Q( N &dp, 6 @9 Q+ j$ ^7 i. A& x NULL,0 `6 g/ {9 T- t- P1 e- X2 y: w
&ei, ! f* v& `6 z. M" Z% w- ?) E/ H7 D &uiErr);) H$ ^: M3 f! a. y5 T$ z- @! n$ @% h. R0 h
1 p7 y6 p' a" ~, M
SysFreeString(topicStr); . [& n. e% m! Y* A( @9 d SysFreeString(itemStr); 5 A3 y* F$ S% M# f+ a SysFreeString(valueStr);1 W% z/ T) F7 W. H8 L4 J+ E
& r+ s; m( X1 ]$ `9 ]) ]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. c* ~7 L& l' h* |% G8 t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????+ d8 ?1 [: \* O1 ^$ u, R3 B% _4 {- o' ~% W
5 b5 j, m1 v b U K
! x$ x" j' L8 S$ Y2 m# e# [2.这是request的程序 ' h- ?5 {* e% ^6 g// Request a value from Extend " M w9 \: I) P7 z% O! S+ s// 5 J( n+ E1 e% j3 O- Z// Initialize the variant that will hold the BSTR. Set the variant's % [0 ]% a1 Z& D8 _; @% v// type flag to indicate the fact that this variant holds a BSTR. Place the ; a. F0 D2 ?2 s) Y' a! N+ M" }// BSTR into the variant structure. # P' ~+ f& m" ~6 p 1 `; i( b/ s( u/ l* ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 j7 D, v6 G B% z7 q) Z% \
" E0 ?& J6 z7 T( L# j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 X3 z: o. O7 D" e5 ^ @ VariantInit(&requestVariant[0]); & r: U' U6 G7 V+ E7 f4 M: ^
requestVariant[0].vt = VT_BSTR;- L m- {4 z, X( Z
requestVariant[0].bstrVal = itemStr; 4 {- W' _% {& H2 q: |8 S, g m; T1 |9 g; z! Y: s$ j topicStr = SysAllocString((WCHAR *) L"system"); ' s# _9 {, D" T3 M& _# q S VariantInit(&requestVariant[1]); " o$ P6 T6 K" E, Z6 e requestVariant[1].vt = VT_BSTR;3 d( I4 \) ]7 {: R
requestVariant[1].bstrVal = topicStr;8 H, R" X8 W5 Y# C/ a" C' ~
5 ]. y# T; N. c# ~; G
// Set the DISPPARAMS structure that holds the variant. . n$ q" A0 ?, j0 _ : v. P4 T% g$ r- B+ z/ y5 J dp2.rgvarg = requestVariant;! f( s* b& {/ \. f3 b% L! _
dp2.cArgs = 2; / z3 l0 |0 p7 a( a dp2.rgdispidNamedArgs = NULL; * C3 y- i" z1 Z: h# W& W dp2.cNamedArgs = 0;5 I; ?: C- K o6 B2 r: p9 }3 `; F9 a
5 D! b9 D& b2 m6 [( K" Q
var.vt = VT_EMPTY;* x2 m2 c% } f
' E0 q) T" [) k, \// Call IDispatch::Invoke()# A2 D: `; j9 s; P7 N2 S
! K C- @7 Q0 a
hr = m_pDisp->Invoke( 1 X/ w) }% F2 n* c requestID,$ v1 ~* H8 ^& m
IID_NULL,( P/ W$ @8 J+ g( R0 _1 B
LOCALE_SYSTEM_DEFAULT, ( i, \+ E9 v' y+ T$ ^0 ^; r3 k DISPATCH_METHOD, / N' ]2 {3 X- m: w& o# s &dp2, * D1 p8 Y4 ` p &var,: i' I' \% P/ }
&ei, & s5 g3 r( W/ g( F7 ] &uiErr); " Z3 X1 K+ \5 Z. {% M9 M; g, p& N% e! G# y3 B
SysFreeString(topicStr); - J. H1 S! Z9 k5 a' U( u! o SysFreeString(itemStr);2 s2 b8 R" x* q1 \
请问该程序是获得extend里面的哪个值? 0 \) J5 ~ g' r' S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????