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:& Z A. B$ P) [! c( H' V4 F. }6 `8 x
Name = (WCHAR *) L"Poke"; " c0 d5 ]! o$ E6 o; U 6 D" G4 l5 ^+ z hr = m_pDisp->GetIDsOfNames ( : E& l9 C! u' B: M- m, G+ v. u IID_NULL, // reserved - i+ k5 | A+ i8 ]0 H; x* V &Name, // Array of names to get IDs for 2 z* Z2 s; T0 j 1, // # of names in the array1 {' J: r9 B8 u7 ?$ Y
LOCALE_SYSTEM_DEFAULT, // System locale) N" S8 k5 s% p
&pokeID); // Array of IDs to fill on output; F u' q9 o+ }0 F) p% K* Y
# \1 S# M, G3 N1 O6 p$ n4 W if (hr) ( x/ E" b8 ^8 p9 p7 r5 t/ k/ @8 v" K) M { $ l- Y# ~! @7 M MessageBox ("Get Poke Unsuccessful");3 E. J, \) c+ ?
return; Y2 a1 {# k: n
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/**************************传递数据给extend**************************************/( i+ A' F$ G$ ?4 e9 b1 F& l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' \" s' e1 }1 ^; d5 M
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valueStr = SysAllocString((WCHAR *) L"1232");$ R8 e4 g3 M7 b0 x; l
VariantInit(&pokeVariant[0]); * x% p* K+ V/ v) j+ C# k0 X
pokeVariant[0].vt = VT_BSTR;* Y; @6 S/ c( P$ q
pokeVariant[0].bstrVal = valueStr;; }+ {' S' u% {9 L2 x" t9 F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* T, ?6 f: O" I1 y
VariantInit(&pokeVariant[1]); $ f6 L5 N3 X. G+ `% s6 j, P3 M pokeVariant[1].vt = VT_BSTR;/ B& u6 Y6 y0 i
pokeVariant[1].bstrVal = itemStr;! e0 W) ~! d! Y1 }
3 k8 I2 }/ \: E8 x* N topicStr = SysAllocString((WCHAR *) L"system"); 9 e J2 O' X2 Z6 p7 u! `: F$ z4 L VariantInit(&pokeVariant[2]); % i5 P3 L' b) Z5 H pokeVariant[2].vt = VT_BSTR; 0 ^: d; [& T( ~+ w/ f% K: S6 A7 \ pokeVariant[2].bstrVal = topicStr;8 |1 ^2 m" n& S% t5 q
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// Set the DISPPARAMS structure that holds the variant./ u C$ h8 }& {/ m
7 M$ \0 R( F- ?& S dp.rgvarg = pokeVariant;# q7 n" w6 ]8 H; I" B9 z t
dp.cArgs = 3;4 b h" ~( d r; L! F7 ?% j2 |
dp.rgdispidNamedArgs = NULL; 8 P+ ]' m* n6 k G dp.cNamedArgs = 0;, `/ X F7 a) h% X8 Y. Y; g
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// Call IDispatch::Invoke() . g" r9 J3 |5 q% t, f$ \7 Z6 [( R , f0 i9 \* Q; g9 e- D hr = m_pDisp->Invoke( + ?' m( H0 K7 P! D% o pokeID,5 Q- w- }/ M- v# G! R) w% k) K
IID_NULL, 6 O( s. m5 r- X+ \1 w LOCALE_SYSTEM_DEFAULT,* k- |- d' l$ x; C* l- C
DISPATCH_METHOD,$ U! I/ o+ G$ p! Z8 q
&dp," W4 z: p: w% ~# n- k1 a; |
NULL,. Q5 U1 S5 `4 G1 e! ?
&ei,- n- x5 q1 G9 K& ?& D8 u8 A
&uiErr); D. \8 q- ]$ P
5 |9 y d3 t9 I* E6 j1 P SysFreeString(topicStr); 6 t# i3 w g2 f) ^0 c4 @9 B N- H Q SysFreeString(itemStr); ! U ^( ]( l* ^7 y) H& e6 C SysFreeString(valueStr); . I, R, Y3 u9 s! }9 Q( X! T" w: R9 x/ | - B" O. T5 y4 S" Q6 O9 P* 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??? & z( E) [+ J9 @+ ~0 B- K) d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???? 7 J% A; }% V% b/ C" E " S4 }% z! _" F; ^# g , q+ }8 T# p ~2.这是request的程序 N! _- ?- H( ]# l
// Request a value from Extend + B2 u# y3 @* }6 P1 N" [- Z/ L2 }// " A, ^0 [2 j# V2 j3 C// Initialize the variant that will hold the BSTR. Set the variant's 6 t, x. O* d8 H; |7 l, L, N// type flag to indicate the fact that this variant holds a BSTR. Place the; Y r% a2 u* `* K
// BSTR into the variant structure. 8 h! Z- F5 g3 N- r2 g1 t- t 5 Q# ~% k5 w; k2 w* b7 P/ s2 I n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' h4 b9 Q: d/ t" k" R 5 f3 z4 v8 G! S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' }6 d8 G$ G8 p1 X4 q VariantInit(&requestVariant[0]); " I! l0 j3 w, n; S# F
requestVariant[0].vt = VT_BSTR; / F! f9 ]/ h9 P requestVariant[0].bstrVal = itemStr; 5 n0 i9 b$ S/ U* g; p ! P+ I! V) c5 r6 C topicStr = SysAllocString((WCHAR *) L"system"); - j' \- I+ U' k8 W VariantInit(&requestVariant[1]); ( l6 o- N8 X7 n) Z/ g
requestVariant[1].vt = VT_BSTR; " j3 U& D: h y' ?& U ?$ W requestVariant[1].bstrVal = topicStr;) o6 g6 w, w! j
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// Set the DISPPARAMS structure that holds the variant. 3 ~! i5 D4 A1 t$ Y' S2 R9 |7 ` 5 U: J3 A/ L3 @, ?* j; ?: t8 V) y* G dp2.rgvarg = requestVariant; & `; ^2 d6 s' M* j0 q3 ` dp2.cArgs = 2; 2 w* I- }) r1 |3 h dp2.rgdispidNamedArgs = NULL;% ? [# n% }9 X$ v
dp2.cNamedArgs = 0; 0 Y3 W" K* w0 j 5 U j# `: I% s: k var.vt = VT_EMPTY; , q1 p$ B. a6 n# `8 X/ h$ M . X8 Y/ d2 l& ^// Call IDispatch::Invoke() / y2 f% `1 p% Q! ^: j$ |; Q; `! C M
hr = m_pDisp->Invoke(" Q# [1 o7 p. ]2 S4 o' {
requestID, 0 G/ q4 g2 L& b% a- t IID_NULL, 0 \5 z/ s% \9 q" ` LOCALE_SYSTEM_DEFAULT, 8 f# f( A1 J. p, W$ N% m& e DISPATCH_METHOD,0 x$ i- g5 x, [& Y4 @
&dp2, $ T5 E( y, o) g% X J' b" w &var, # d/ ^# |, }. K &ei,7 M$ |6 Z/ q! A; ]& N' i# p2 i$ R; N
&uiErr);, k* {/ }7 D- ~/ f9 v* }9 J7 }: N
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SysFreeString(topicStr);" M2 e* }2 n. I- t
SysFreeString(itemStr);* F7 e2 k& N% s. Q, Q G
请问该程序是获得extend里面的哪个值? ! P/ M* L8 l5 v. q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????