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:% e, X# N8 h/ t& x) B0 L# a
Name = (WCHAR *) L"Poke"; 4 c6 e& P# I: V2 k: M1 A / T8 ^: N. s& N9 { g! K M hr = m_pDisp->GetIDsOfNames ( u) J, N% P% \1 s4 {5 X IID_NULL, // reserved ! \: E2 [7 ?" b$ ?* ~+ h &Name, // Array of names to get IDs for 7 T$ F z9 M- M1 r; F8 \ 1, // # of names in the array 5 M/ c" n4 Q9 ~( a LOCALE_SYSTEM_DEFAULT, // System locale + u( j, d, B8 ~! e. P% S& t &pokeID); // Array of IDs to fill on output / ~" ~" ?/ q9 R. d2 R3 n& C ! T2 V) l) x$ o$ D4 y
if (hr) $ d# Z& l1 i1 \% M ~ {6 ~. f' p5 s. A2 ^; B
MessageBox ("Get Poke Unsuccessful");5 }% Z: R x* X9 ?! p
return;/ f) J+ V! D6 Y* i9 ~
} 7 C' V$ R8 L5 r7 ^ 5 I# Q+ M* W8 z& p" z1 A/**************************传递数据给extend**************************************/ 8 U, n/ j( [5 Y4 @, K/ V+ K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( U, e5 O6 k+ U- Y( G) g9 M+ O* n 9 v+ j( Z' t! l: t; f
valueStr = SysAllocString((WCHAR *) L"1232");$ q& H% i/ X) F" Q2 c0 n
VariantInit(&pokeVariant[0]); ( P% H6 L4 i$ N4 ~1 W5 @0 q pokeVariant[0].vt = VT_BSTR; ) ^( N4 @4 v. J) j1 `( x pokeVariant[0].bstrVal = valueStr;1 o9 M3 z* c3 m: a. ]1 k0 D7 \
% |9 j; t- d& F U4 n( T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. [0 c6 n. M5 r+ h5 k1 \( v& a
VariantInit(&pokeVariant[1]); ; W# L. r. O. M( i" S; V: O
pokeVariant[1].vt = VT_BSTR; ! r# G" ?# m; i' W' a u: q pokeVariant[1].bstrVal = itemStr;8 v, `# ?1 E. l/ [( E$ a+ V" }( B
) w, y) K0 _$ v7 z9 Y& n topicStr = SysAllocString((WCHAR *) L"system");" C7 u) t, o- u/ Z
VariantInit(&pokeVariant[2]); & E* r- B% _. m. V
pokeVariant[2].vt = VT_BSTR; 8 w. R1 b% {4 j4 x! e' a pokeVariant[2].bstrVal = topicStr;% V& `9 u: ^5 k8 {: \
# k+ I+ ?: M* p, L3 p# L// Set the DISPPARAMS structure that holds the variant.0 M& L9 `) V/ q; |! w. n
/ r7 `% `/ | | dp.rgvarg = pokeVariant; / w' e& q/ M8 l2 | dp.cArgs = 3;/ \. d" y+ l* k* z' A0 O
dp.rgdispidNamedArgs = NULL; ) t# A2 R' l8 q+ r dp.cNamedArgs = 0; % W/ K! b; b r2 z% k6 b f y, j8 a! b+ q9 u0 N
// Call IDispatch::Invoke(): B5 R8 b; m/ G: X/ g" E
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hr = m_pDisp->Invoke( 1 |2 g. u0 L8 [' @" v2 @7 D pokeID, 6 A9 O- v( t3 Z8 ` IID_NULL, % o3 j5 B! E$ b. V$ e$ g LOCALE_SYSTEM_DEFAULT, 1 M0 S2 M& E$ X) e0 l DISPATCH_METHOD, $ Z& e0 Q- ]- p' n &dp,# k9 _; h2 [ U
NULL, 7 m h. b5 W6 ?. g3 S/ a &ei,- c& ?9 D1 O7 L% Q b) `$ b* C
&uiErr);; f" m. j% h& z, l2 q
9 F5 \0 G* @0 l) H
SysFreeString(topicStr); ) t* n7 ?' f: @/ [ SysFreeString(itemStr);( s" B2 u9 i# Z& W2 { ?5 m
SysFreeString(valueStr); 2 X0 ^- @) s" U: G4 W" g# v8 G+ ^2 S/ B! l: b
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??? 0 [7 ~/ ~& O( j8 X; K. L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???? ( E! u# E1 D, {' x7 G : L* m: [( h8 S# M8 S! U- `# T8 T7 J& y3 s7 [
2.这是request的程序 0 _" ~. n/ f* u8 N( B3 U4 k// Request a value from Extend6 d% F3 j3 \: c% M/ r
//+ @8 X3 u j% G1 G3 K9 L; l
// Initialize the variant that will hold the BSTR. Set the variant's + _% _9 P0 X2 t/ U0 t$ U+ O// type flag to indicate the fact that this variant holds a BSTR. Place the" ` G! c4 q! c3 i2 c
// BSTR into the variant structure. 9 |3 t5 b: `( W+ ?) u) ?" b 9 T0 \* b! F# w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% j! e* F. t# S$ i( C( l
' T \' p# j. P3 I# B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ ?2 N$ Q# y. I3 b/ z VariantInit(&requestVariant[0]); 0 c' [. L$ A* Q+ W requestVariant[0].vt = VT_BSTR; % n! w2 V/ o6 y5 E requestVariant[0].bstrVal = itemStr; ; E7 Z; H# `3 y2 l! R' j - O! ]4 P# A& m; r. W/ b# k topicStr = SysAllocString((WCHAR *) L"system"); : m/ P; P. O& n5 |$ m+ f VariantInit(&requestVariant[1]); , R$ W% n& n4 H) r7 y" r requestVariant[1].vt = VT_BSTR; 1 B& ]3 \" Q& G ~8 J requestVariant[1].bstrVal = topicStr;1 B L3 I8 [- f1 j" K$ _3 S
, e: M3 y d( y+ i1 [9 P/ |* I/ @$ {// Set the DISPPARAMS structure that holds the variant. 1 y) d! s( ?1 I. Q" L3 s; f - m: Z" F+ K- k# a V T8 ] dp2.rgvarg = requestVariant; 1 S' A- z3 D8 S- ? dp2.cArgs = 2; 4 o/ L( h+ R% }/ y# Z dp2.rgdispidNamedArgs = NULL; F3 b1 b; N7 \! [7 Y1 f: m
dp2.cNamedArgs = 0;, s" t3 B* R; z, t' f
$ _8 `3 C& A: I var.vt = VT_EMPTY; : W( X$ c$ @( t1 x: L. [$ X" b6 a( }( G
// Call IDispatch::Invoke()- ~7 ~, [ V& n
1 B6 S; E l9 ~6 L, i9 x! h8 L hr = m_pDisp->Invoke() Y- N J8 F$ X) w6 ^0 c3 ?" J
requestID,. l( z8 H& J# i
IID_NULL,' ]) o m) e m# b' q
LOCALE_SYSTEM_DEFAULT,: i1 K& `) E* x3 A7 ]7 B% Q
DISPATCH_METHOD,3 h1 R2 G- [/ f2 n/ ~
&dp2, . L7 d; D( p8 W" ?0 ~7 M2 K* Q &var, , }3 r6 H% A& G &ei, % `7 P: ]7 l4 i) @3 r &uiErr);' P9 s" a! p# |( L
8 ?4 B! Y$ w* U! _+ L i* e SysFreeString(topicStr); " W1 O1 S7 M6 B+ T SysFreeString(itemStr); 5 R. N3 l5 c/ T, k请问该程序是获得extend里面的哪个值?& l; |5 f1 H. H. E' 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????