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: ' \, A* | G% s: lName = (WCHAR *) L"Poke"; B- L" Y& }7 f$ i
+ ~& \' h, O6 c6 N6 i: M+ h$ K1 G
hr = m_pDisp->GetIDsOfNames ( 0 \$ w |: V6 G4 [2 | IID_NULL, // reserved! x. Q Q. G8 F0 m
&Name, // Array of names to get IDs for * ~( R0 R' M2 z1 L( o7 P 1, // # of names in the array ( u- p1 z, f, t+ W LOCALE_SYSTEM_DEFAULT, // System locale 8 }. a3 x3 [# ^ &pokeID); // Array of IDs to fill on output 2 Z8 e4 Z ~+ b+ A ! C1 z7 w Z( a: U1 ^& g/ H
if (hr)- [ q& u% L9 p% u: r
{3 v. Z6 ^, \1 t0 f/ s
MessageBox ("Get Poke Unsuccessful"); - u, {) b5 U( N. ?" A% r return;: U7 u- A- z8 e+ K( Y9 R
}3 {$ k* X$ ]0 W- q2 N2 ~/ c
+ O) e! b8 A; D9 ^& B: V/**************************传递数据给extend**************************************/3 V8 Z+ M6 }1 v. G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % x2 Y w: R! K% r; p 7 z3 R2 e3 a0 x4 L K) J valueStr = SysAllocString((WCHAR *) L"1232");: r* ^; X$ q# H
VariantInit(&pokeVariant[0]); , Z' E+ E/ \7 i) p0 j6 p- X6 H* _ pokeVariant[0].vt = VT_BSTR;% `3 P8 Q4 l9 s7 S* I
pokeVariant[0].bstrVal = valueStr;* F1 A$ h6 H+ y7 L
8 [' m$ o1 Y3 c) L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 H+ W5 E2 V: L* o! T/ e
VariantInit(&pokeVariant[1]); % C" t; ?. P4 d
pokeVariant[1].vt = VT_BSTR; " D/ @1 G5 S2 F. i1 ` pokeVariant[1].bstrVal = itemStr; 8 o! V6 M& O* s" d$ @1 d1 B# M# V0 m8 x! V. m8 n& c4 H
topicStr = SysAllocString((WCHAR *) L"system"); ) @' E9 L/ G* r/ @% ^/ t VariantInit(&pokeVariant[2]); . F/ n0 S) v% E3 ^$ P' c' [* q
pokeVariant[2].vt = VT_BSTR;! U/ W' b, {9 W0 s
pokeVariant[2].bstrVal = topicStr; 2 n4 i, w* N2 k1 m( H6 q : K1 v$ Y% o& H// Set the DISPPARAMS structure that holds the variant. 4 o. ^* Q- A% l0 ~. D3 y ; y) ~ e, y- E5 W m, M dp.rgvarg = pokeVariant; & m, ?1 o6 P& M/ v( t1 x) ^" H# { dp.cArgs = 3;- ~& H( V3 W6 a- U1 E& A: s
dp.rgdispidNamedArgs = NULL;1 J3 V$ e$ E B' W5 ~8 z p
dp.cNamedArgs = 0;; O/ N5 k j4 M# ?* _% h
/ X1 K' u+ f- D// Call IDispatch::Invoke() % j% t- x+ a9 n7 ]8 n! d. j- R8 u7 |1 w6 T/ C
hr = m_pDisp->Invoke(# m+ ] n* B4 ?+ w6 Z4 D
pokeID, 1 u/ Y" S; F! j& p; A: B IID_NULL, , |) d. l" g1 M | LOCALE_SYSTEM_DEFAULT, 6 T) R" X" R$ x4 x( ~# {8 A7 E' J DISPATCH_METHOD,7 D# ~; `; Z3 ~; G/ f
&dp,+ ]5 k: X; `- g1 @
NULL,% v* ^2 O1 T! x" n1 o$ N8 r; C
&ei, ( x" A. n4 K# Z0 t4 k& w &uiErr);7 D5 r! T9 j, u. N
" s& a6 H2 X* q SysFreeString(topicStr); ^: V* B: y: }% V+ G SysFreeString(itemStr);3 N8 O, Z7 m1 J) p' y" S
SysFreeString(valueStr);! j) r2 U6 h" u( f7 y3 f; `. B
. y! O+ @( ?$ i \; c% x" W9 W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???3 C# I4 W. I( V3 s* n6 \2 x6 j% W
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????5 b" N# b/ Z% `* R0 F
5 R m9 ~1 O ` c+ A; l2 a, X6 m2 U$ M/ K) m8 h
2.这是request的程序 8 ~$ P1 t7 ]" w3 B6 V5 N7 P// Request a value from Extend 3 A; S; D! Q, a Y" y// " [5 f) h- F) n% j( N) `// Initialize the variant that will hold the BSTR. Set the variant's 4 b# T0 W+ g8 N, q# x" y5 |// type flag to indicate the fact that this variant holds a BSTR. Place the 9 A( V7 z+ q7 X' k, N5 J) X// BSTR into the variant structure. 5 p% g& Q, w: e: x+ A * r- a+ h; F0 `# @; | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) K9 h) u# ^: Q( U8 i; ?: @" |7 L
c' N" P: g$ ?% ~( N+ j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; U! l. A; P% G5 q+ e% [ VariantInit(&requestVariant[0]); 7 X E: m, P1 P/ V4 V1 W6 Y
requestVariant[0].vt = VT_BSTR; ) J( M6 T& B1 B& s requestVariant[0].bstrVal = itemStr; 6 |& ]% {1 F" N% U' {+ D" f 6 g2 x# J2 ?: e1 R topicStr = SysAllocString((WCHAR *) L"system");+ ~# G3 W: A( W- H8 U" F/ _4 f
VariantInit(&requestVariant[1]); 2 k) _& _4 @; e$ b, M6 [ requestVariant[1].vt = VT_BSTR; 2 _1 m4 D) {3 m9 A requestVariant[1].bstrVal = topicStr;( M3 j5 |$ n3 P
: d( q; `" r O# x# a0 m4 ^// Set the DISPPARAMS structure that holds the variant.! \. u6 M9 @ ?8 t5 r+ d
0 a1 \! }0 O) O) t' u
dp2.rgvarg = requestVariant; $ p$ I! K/ E2 A dp2.cArgs = 2; 1 v1 n- t. n1 w- E) v( s dp2.rgdispidNamedArgs = NULL;. F9 K G! u2 e2 k( T4 Q! w9 I P6 w
dp2.cNamedArgs = 0; 4 k( t: }# L8 @6 M, R% k 2 T7 d* Y& F8 W; _% Y8 W var.vt = VT_EMPTY; H, K( V5 B, v, _+ z
) m/ ]0 }+ W' F4 r
// Call IDispatch::Invoke()9 J' L N$ i* }; a
+ e3 }6 |- a7 A) n, p
hr = m_pDisp->Invoke( * s7 d+ `0 F* ]9 h& d7 ~3 \/ b0 [ requestID, 6 T; l5 @3 e+ }/ H; }% p, c5 y IID_NULL,6 _' e0 b$ R4 M# i+ L) k9 [! t
LOCALE_SYSTEM_DEFAULT,0 m* m2 g: y) B8 u7 r
DISPATCH_METHOD, 2 {* P0 j/ X( |2 D) ?2 Y; Q5 k# \ &dp2,8 A7 J' x6 P5 S* x+ _/ ~: x
&var, 2 D9 `, l1 Q5 j$ ^+ E &ei, ( ~% j. E7 L' G" l9 B. X &uiErr); 5 G) \+ }* D' k: j- O $ X; v; L9 O- {; j) V. ? SysFreeString(topicStr);" b& C# P, Y1 G; W2 v
SysFreeString(itemStr); 7 k4 z2 s% T+ F4 P: D# W i请问该程序是获得extend里面的哪个值?& Y, `+ c6 ]6 m
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????