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:1 o2 Z7 @% m9 w7 S6 D
Name = (WCHAR *) L"Poke"; 9 t7 `) y- W; X : A9 @: s' E; ~$ W0 q: C5 O9 G" a hr = m_pDisp->GetIDsOfNames (" v) l) I7 e) [/ P
IID_NULL, // reserved / `' y3 h' u+ | &Name, // Array of names to get IDs for+ m2 r, W8 ~- `. s0 d
1, // # of names in the array4 A: H# @4 M+ ?9 a
LOCALE_SYSTEM_DEFAULT, // System locale # q% t1 k; }/ \ v/ _ &pokeID); // Array of IDs to fill on output 9 b) }/ o/ m* }2 A6 S ' f; X! x4 d" d) _% H2 y+ k" h if (hr) # U0 e! {& m4 f* W7 a5 G7 M4 m {* ^* V: Q- R; R1 h5 @6 H0 x
MessageBox ("Get Poke Unsuccessful");2 V! }; k# J+ @1 w
return; 5 a, \- e: ]0 S1 i# Y" e5 P1 Y } ) ^5 {; M& p) n( P& Y % C2 ^9 G1 a" Y$ B* u. s; X/**************************传递数据给extend**************************************/- @) x! f. l$ z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! s0 {' n1 O' R* s* z T * I7 \% N( h+ I) v) F4 } valueStr = SysAllocString((WCHAR *) L"1232");% b0 `2 O3 {+ \3 y8 u: G. e
VariantInit(&pokeVariant[0]); / }* z4 W( P/ q) _) S pokeVariant[0].vt = VT_BSTR; ! A/ f Q0 H l \/ C4 z% P; D pokeVariant[0].bstrVal = valueStr; 2 K" y9 c3 L+ y, @1 o0 g( b * K; q+ }- M S( j/ p& B G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: n0 |& Z5 r5 F9 W+ Y: ~
VariantInit(&pokeVariant[1]); 3 B% j6 c7 w) A6 ] pokeVariant[1].vt = VT_BSTR;0 s6 q6 n8 F% V/ j! }
pokeVariant[1].bstrVal = itemStr; 6 h, g5 V* \' l; } - s' _- f* ^0 d0 z; J topicStr = SysAllocString((WCHAR *) L"system"); $ \4 Y* P( {0 a/ _ Z VariantInit(&pokeVariant[2]); ( l: \& c o, S, n* P; u4 j
pokeVariant[2].vt = VT_BSTR;# H6 i" L) J% u( {! W9 y
pokeVariant[2].bstrVal = topicStr;7 P: v( ^' ?- v, Y
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// Set the DISPPARAMS structure that holds the variant. " p# x* H% ?8 H1 C/ n2 H 2 J2 ]% i( u2 g0 x/ P+ f" j% a+ { t6 o dp.rgvarg = pokeVariant; 0 R+ R! S, w: j+ r dp.cArgs = 3; 2 b: L& I3 r/ P0 V8 G dp.rgdispidNamedArgs = NULL; 5 h7 R. X4 z0 f' c# {& | dp.cNamedArgs = 0; + ^: j% m* j0 w1 |' @9 e: J# n2 W6 _+ I+ g% C8 Y4 L: f5 Y9 `% u
// Call IDispatch::Invoke() & Y- V" S% i0 v7 g, X, l 5 H' x8 M$ ^, `8 r u hr = m_pDisp->Invoke( & H+ P6 F' Z j8 o4 t6 _ B' j C pokeID, ' g% B" _. n/ i- ]) d! H, S$ c% h) @ IID_NULL,2 X) A0 B( E; \* p' [6 }
LOCALE_SYSTEM_DEFAULT,' \& e* z: P# O8 J
DISPATCH_METHOD, 9 b7 {3 t9 t8 c. p" Z0 u &dp, # F+ z! A) g" G0 B/ I+ ] NULL, g6 I, f+ a/ e &ei, ; s$ ]9 i2 K) u9 v' d; g1 n% d1 D &uiErr); 1 |5 Y/ j* e. B# B' ?& L* I* e7 s# l
SysFreeString(topicStr); , C5 A7 Q c* [' u0 y SysFreeString(itemStr);: f) q1 N( _. A! x; R5 K7 I8 \
SysFreeString(valueStr);7 N) U0 ?2 |% o; a
5 a5 O' k$ x6 V0 [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??? : R1 e+ f9 F/ E7 U. 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???? : t! V {1 X, R/ k6 r, ]0 ^/ D x: A" N B
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2.这是request的程序) s [6 n! J. k7 {
// Request a value from Extend8 q# L1 t7 F1 I6 z& _, V
//9 U4 E- d } V A( n, F
// Initialize the variant that will hold the BSTR. Set the variant's2 u: `$ ^6 c2 z. V& i! B( k+ F
// type flag to indicate the fact that this variant holds a BSTR. Place the ) L$ P+ e& H6 L) V4 V; j x// BSTR into the variant structure.& ?1 G% }) C3 A$ x' U6 P
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 K& q- o( g2 ?) G
* |2 C4 c' k$ \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( q( K( z( P% V' ~
VariantInit(&requestVariant[0]); % w. k- n ^. x* a* o% ?/ G: H
requestVariant[0].vt = VT_BSTR; - h$ n5 b2 `4 d: R0 h requestVariant[0].bstrVal = itemStr;, r. A# C4 b) g7 b9 q
% E- r" t: m$ L3 ?) h topicStr = SysAllocString((WCHAR *) L"system");" F$ @& O# d9 q8 M; v
VariantInit(&requestVariant[1]); 4 t7 e6 L- Z1 q8 x" V requestVariant[1].vt = VT_BSTR;; [2 d" d; Q6 F+ E& Q5 Z7 ~+ j5 B
requestVariant[1].bstrVal = topicStr;) V& j. d; K& t4 c; H% l1 M
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// Set the DISPPARAMS structure that holds the variant.8 @4 Q. b0 r- p
& i& S3 \4 B I ]' k dp2.rgvarg = requestVariant; 4 e7 k6 ^ K/ k0 w dp2.cArgs = 2; + N6 K( m/ a: p dp2.rgdispidNamedArgs = NULL; 8 ~2 l v+ k' o1 [; A dp2.cNamedArgs = 0; t1 V( ?- G1 T
1 T$ [0 a0 n: ^# I var.vt = VT_EMPTY; 3 M/ `6 Z/ F: h" M4 t p9 k& T! W! e8 b' `2 _6 }! L; u
// Call IDispatch::Invoke() % w8 k' M; b, | D) a4 ~) m: y' D) c" ^: k+ Z+ N
hr = m_pDisp->Invoke(" ~' n6 Z; M8 i! {
requestID,& e' ?3 K6 q/ X2 x
IID_NULL,: V( `2 B( r$ R( r
LOCALE_SYSTEM_DEFAULT,' W- H3 p. N+ k' W/ K% y; s. Q
DISPATCH_METHOD, 5 f* g# _9 g4 c S9 c0 I &dp2,8 ^, s6 U' q8 p2 T1 v+ u4 _
&var,+ n' x" _- k4 o. B% B* [
&ei, 5 n- A* M% _4 x7 X' q. i &uiErr);4 g" q. K; j2 |) t" k) Q
1 d. N, w* ?3 m( ]+ O( d! L SysFreeString(topicStr); ; R" J( _- }1 T2 a- N7 s: Z X$ y SysFreeString(itemStr);' X& n& p6 T; K
请问该程序是获得extend里面的哪个值?4 q6 P6 B) _3 |& g1 Z/ K4 Q+ Z# i' y
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????