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: 6 I6 `- ~3 O! |* z$ OName = (WCHAR *) L"Poke"; 3 j1 s* o* @' D8 E: Q 2 }7 ?7 m: B, O4 @# Z* ~ hr = m_pDisp->GetIDsOfNames (* j3 G" x0 g! H# U9 [0 f# R
IID_NULL, // reserved; N/ C, @ T" Y7 Q! D
&Name, // Array of names to get IDs for6 n W: V* g" C) S+ ]% N* G
1, // # of names in the array ( S+ l( H& f+ W* r LOCALE_SYSTEM_DEFAULT, // System locale 2 C+ j7 e" e% j7 _& V G2 S &pokeID); // Array of IDs to fill on output8 L, I& P/ A# J& s' s
$ `* S' l0 M/ h$ D* R2 N( b if (hr)7 C0 l: U, C- T9 M1 R
{ 8 u3 u* ~2 Q% y) ` MessageBox ("Get Poke Unsuccessful");2 |- @6 |- n u7 c# g' B" E
return;9 g5 ?0 ~' F; [
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/**************************传递数据给extend**************************************/ . |- g0 G/ K% `; I8 S" G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" G. L/ @6 ?5 i( I4 z
+ s: s7 \" _* ?3 e: [% u' b valueStr = SysAllocString((WCHAR *) L"1232");5 V- x" J( n8 V" D& _. \. V
VariantInit(&pokeVariant[0]); 8 l5 R+ a1 G0 N; t( X pokeVariant[0].vt = VT_BSTR;8 g ]% x1 K: S! ] n* P2 p
pokeVariant[0].bstrVal = valueStr; 6 V6 a: }: X) _9 J9 m! i2 e. D$ S/ ? x, \
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % ^0 X. _: H- z VariantInit(&pokeVariant[1]); 2 H: Z0 l0 M# K0 p7 s! v pokeVariant[1].vt = VT_BSTR; ) w# v3 y2 T2 w4 d: h pokeVariant[1].bstrVal = itemStr; 2 d( q& Z$ }" Y6 m% | / R- q( \9 L6 j' F topicStr = SysAllocString((WCHAR *) L"system"); J& J8 Y+ m! b F/ J5 n# l VariantInit(&pokeVariant[2]); # {0 s$ M" W5 I1 A' p. Z
pokeVariant[2].vt = VT_BSTR;/ A: {1 t, a$ D, y# K2 |8 r
pokeVariant[2].bstrVal = topicStr;4 S6 i0 J; k3 l/ D) [: Q
/ X/ w% b6 Z' I. S4 P) X// Set the DISPPARAMS structure that holds the variant. s1 Z W2 ?; B, M6 U& h/ U2 Y/ B1 ?" O+ q
dp.rgvarg = pokeVariant;) O, h ?# L4 q4 _4 q7 H
dp.cArgs = 3;3 r. G X B$ ]4 h
dp.rgdispidNamedArgs = NULL; $ \6 B0 `) G; D5 q" O; g V dp.cNamedArgs = 0;$ \0 D N5 N9 D% Y
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// Call IDispatch::Invoke()+ P7 w$ } Y. x+ P# \
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hr = m_pDisp->Invoke(0 V8 |$ c- }7 g3 H/ `
pokeID,1 }' L3 u, z: G$ r, K+ ]
IID_NULL, 1 y; ~( l# W! S. c6 b) ~* Q! Q LOCALE_SYSTEM_DEFAULT, " n$ M, ?& d6 p9 s7 k DISPATCH_METHOD, ! S' O0 I# b$ P1 M6 Z3 w! o( k &dp, 3 X4 q9 C S' c# y" b NULL,- e* |& `7 J" C! ]- `
&ei,3 z6 ]) `. S0 q/ u+ D( _
&uiErr);0 X, N: y- }2 h# s1 g$ q
+ z( ? N+ h/ ~' r, I1 J/ t SysFreeString(topicStr);! W- `2 g" t5 T! O. \5 x6 `1 {8 W6 D
SysFreeString(itemStr); - x a& E! o% Y% K SysFreeString(valueStr); 5 K+ [' |' E. A( O* ~% f2 ~$ Y6 u6 y _- p% N0 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??? ( A( b) @* M+ W2 t/ x% k1 G$ R9 P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????9 P" N B3 f4 N" h' p+ ~3 V
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2.这是request的程序' ]& h" U* N+ W2 O
// Request a value from Extend , ^+ d! X3 {# \5 f: v! t// ; d- t P3 D# r( R1 I// Initialize the variant that will hold the BSTR. Set the variant's ) o; i8 Y5 p, w. J// type flag to indicate the fact that this variant holds a BSTR. Place the3 g, f7 U7 G- ^3 H
// BSTR into the variant structure.6 I0 U( ~& x/ G; V, K" N* K
1 B+ ~6 _9 i! g3 [3 V; h2 b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " q4 l3 f% D, D" | ! _$ v& C& z [4 Q+ D9 A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); `% z6 p* S8 R) u
VariantInit(&requestVariant[0]); 6 t) }8 t: d" x3 V9 _ requestVariant[0].vt = VT_BSTR; ( C- `2 q& U5 o- Z2 M& t requestVariant[0].bstrVal = itemStr;+ m# {- V9 U: `7 Y- e: V
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topicStr = SysAllocString((WCHAR *) L"system"); 0 J( d% R" J9 N0 z+ j VariantInit(&requestVariant[1]); ; i" f# U& ]& Y( T requestVariant[1].vt = VT_BSTR;0 a& r2 t& K1 P" D1 D. |; i
requestVariant[1].bstrVal = topicStr; - E7 }) V+ i. ?' g9 i $ C. a' w! [4 u0 g+ U// Set the DISPPARAMS structure that holds the variant.8 v1 N5 ~2 l Q7 i$ \8 O. R
9 R, a ]3 t+ S9 z; L2 t j: f7 B dp2.rgvarg = requestVariant;/ o' ]9 z! K6 f' s4 F& W" J
dp2.cArgs = 2; 4 B! X M% [# Y; K L9 t! u7 c dp2.rgdispidNamedArgs = NULL;# j0 m4 {* G6 f
dp2.cNamedArgs = 0; / N- k" ^/ T( m" g) b ! N0 ^, m X. i6 C- ^ var.vt = VT_EMPTY;: \2 l( R% j* W" x- w! k$ k
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// Call IDispatch::Invoke() / }0 J1 W3 C5 r! Z7 ~ ; `( E0 Z4 N! z3 R( h4 M) G. ?: x% G hr = m_pDisp->Invoke(' j7 K* x" A- s# E3 |; g
requestID, " v9 b7 Q& u2 E' v" g. G5 T IID_NULL, . T/ g! B5 ^$ L3 q K LOCALE_SYSTEM_DEFAULT,* u* ]" B- V- @2 l4 N
DISPATCH_METHOD, 2 }3 X, M% f3 v+ R9 @& P$ [ &dp2, 7 K- Q/ q$ v% k. z; ] &var, $ P, b1 b8 u: W/ m9 K8 d% c0 F* J! o &ei,. z& C2 ^$ n: z7 b0 J% B
&uiErr); 1 F- v* x( z9 r% ?! O- h$ N & Z: `8 q* M. M$ \5 E X& l SysFreeString(topicStr);: A' J5 w4 m+ z4 n
SysFreeString(itemStr);( h" k6 Y* D0 Q2 v- o5 W* T }% z. `
请问该程序是获得extend里面的哪个值? 8 P3 g- ~: N. P7 [; I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????