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 Y' r' v2 x6 C4 M
Name = (WCHAR *) L"Poke"; + \. J7 R2 m; n" t 9 h6 V& g- f- w7 u" O p hr = m_pDisp->GetIDsOfNames (6 W3 J# o* H& I0 \- X$ C0 j
IID_NULL, // reserved 1 ?3 i5 y7 ~! h3 L$ l7 q &Name, // Array of names to get IDs for " p1 p8 l# H3 l* Q0 x5 j" [ 1, // # of names in the array , V/ h0 Z0 H6 I6 N+ m LOCALE_SYSTEM_DEFAULT, // System locale ' |7 C- C/ I" p3 P% x/ u6 ?3 T; ? &pokeID); // Array of IDs to fill on output7 B4 y7 y+ ~! B
& l% e: D' B4 ` if (hr)0 [' L1 P) C0 t& C9 e
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MessageBox ("Get Poke Unsuccessful"); % o6 g3 e! Q+ R0 e# o return; ; r+ B8 u, I* E+ e# V* U } 1 c( j7 M0 n& l. o. A1 k( Z # I& b( q/ [, p8 z/**************************传递数据给extend**************************************/9 K; D7 j; e) Q" [8 n1 Z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 Z% l) ^ {' J) H$ p ) H* l& D4 p2 X% N
valueStr = SysAllocString((WCHAR *) L"1232"); K9 J! ]' a' l5 }6 ~
VariantInit(&pokeVariant[0]); ' t6 Q1 I0 z3 v& x4 Y2 G
pokeVariant[0].vt = VT_BSTR;, T( b% Q) j$ t. Q, m, {8 v8 G( T
pokeVariant[0].bstrVal = valueStr; 2 E- O5 |7 ^1 M* F% Q ; B/ [0 X9 j4 `( z+ ^, ~7 R2 y% D$ o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); S9 y8 k+ T9 \" i2 D VariantInit(&pokeVariant[1]); B, w6 v/ G2 ~9 _3 v s6 b
pokeVariant[1].vt = VT_BSTR;2 y1 j! u6 }' Z3 }0 N' M* K: [
pokeVariant[1].bstrVal = itemStr; ( b N9 v( V+ c" `+ i1 \0 }. n2 F; R- S9 B
topicStr = SysAllocString((WCHAR *) L"system"); , F1 R% i3 [3 C" U VariantInit(&pokeVariant[2]); 5 w/ a: B/ G! k- f+ r- e! f pokeVariant[2].vt = VT_BSTR; ; N9 D8 U1 t. p5 O2 i pokeVariant[2].bstrVal = topicStr; 9 g6 B- l. e" y$ E0 C5 o Z v5 _/ R! q, P* X/ \; H9 k5 y
// Set the DISPPARAMS structure that holds the variant. / @* n5 W( d0 U3 m" P- G9 [- f' h5 W v" A6 I& l& b
dp.rgvarg = pokeVariant; ' x7 ~0 _4 [7 t0 ] dp.cArgs = 3; \9 j# f- m p0 k dp.rgdispidNamedArgs = NULL; " v) C1 m( c5 H3 _" ~9 Y dp.cNamedArgs = 0; I5 }. [* M# f* b% Q" A3 N. Y- d' g2 O& W
// Call IDispatch::Invoke() , Y+ I, k5 V+ S2 F( t 5 I# `' U+ b. E# T9 X$ u' a2 X hr = m_pDisp->Invoke( $ U) V; ?1 T+ G pokeID,; _ K5 B6 B0 U; ^! \
IID_NULL, 1 [0 ~# @; k" V; s; i* r. D1 f. B LOCALE_SYSTEM_DEFAULT,6 a! U$ p5 D; ]5 l
DISPATCH_METHOD,6 s; s2 F# m; |5 h! Y0 Y7 M" S
&dp, G R9 m3 G# [' T$ C: |1 ^; Y- X) D NULL,* w0 @$ ~* D" ]+ k9 [
&ei,5 @" c, Y' b; C# a, s. w! j
&uiErr);0 {& F- K k; F% L. ]7 m
3 Y. I" B4 p/ `/ a' m SysFreeString(topicStr); 5 e/ C- M7 R$ I5 T* O( [0 ^ SysFreeString(itemStr); ( V' d* K1 r: {5 J. {; W* A SysFreeString(valueStr); 8 U" I' [3 Z/ s) O# A 3 f6 ^, m/ Q9 Q2 A. [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???1 k0 m" G7 j1 \! } r5 A% U
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????) u! e5 G b. a
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2.这是request的程序 # ^1 R" z* C7 y4 Y// Request a value from Extend9 o0 F$ S6 V1 l o/ g$ t N, Q" ?
// % ]) @, b9 u" o1 @9 R) H// Initialize the variant that will hold the BSTR. Set the variant's : d4 J+ S' i! f& w5 F5 s// type flag to indicate the fact that this variant holds a BSTR. Place the ! L: \$ K, s( a# _// BSTR into the variant structure. $ `4 f) g( U% G i* l0 B" j4 ]2 X- b d* H8 ^+ b; d, o/ ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, V7 C8 e0 g% K# `4 f
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - M( w i! C! H6 u' a) [6 t VariantInit(&requestVariant[0]); * N9 R y* D5 u o
requestVariant[0].vt = VT_BSTR; + q9 U! n! N% p* E/ ~ requestVariant[0].bstrVal = itemStr;/ r3 \2 Z& G* S! b' p
+ f. Z9 C% K) {+ R// Call IDispatch::Invoke() ; \9 U. |) J- s4 V- s7 z9 C4 u: {" Q) |+ e }2 A9 I
hr = m_pDisp->Invoke( 7 R q3 L9 {) A requestID,7 q: R" @% }8 O5 k* M
IID_NULL,3 C: z% l+ @$ [/ h- ]" g
LOCALE_SYSTEM_DEFAULT,6 i; ^+ m& v* v; P1 C* T" U) s2 h
DISPATCH_METHOD,8 k( @) y1 O) h. U6 F
&dp2,+ q: _ |9 Q& q
&var, r) \& S& S4 N) K4 a! Q &ei,: m& R$ h- F% _' f6 z9 K
&uiErr);/ L6 ^8 c k5 P5 p8 E
; ~% o5 S' y! t D6 d4 P' Z SysFreeString(topicStr);, S- V n: I# T
SysFreeString(itemStr); 8 o; K0 J7 m: Y' v请问该程序是获得extend里面的哪个值?7 C. e& o. Z8 N8 a. 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????