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: 2 m. }( v0 W9 t7 b! Q9 ^$ KName = (WCHAR *) L"Poke";8 Z$ I3 i7 _0 B& l' I
1 w+ o7 v+ L9 } hr = m_pDisp->GetIDsOfNames (0 y' v( e$ `! f- F
IID_NULL, // reserved & G( h8 A( P. O- t) {4 ~ &Name, // Array of names to get IDs for+ T8 U' c( }& O! i2 N
1, // # of names in the array , |! H: F% ?0 \! Z6 j LOCALE_SYSTEM_DEFAULT, // System locale $ {4 X. t) V/ b$ q. X &pokeID); // Array of IDs to fill on output + Z( l: k0 L9 G* Z; L t4 W( Z7 L9 d9 r4 x( p
if (hr) ! T& f- l5 U: Y {4 l3 q0 b0 t" |
MessageBox ("Get Poke Unsuccessful"); ' H( _- s; M6 G" N5 q- k/ l% g return; . @0 R2 m' M& F7 ^2 [) ^+ R }6 Z. [+ w9 X$ L; V
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/**************************传递数据给extend**************************************/! T3 O% l' g# G: ~: `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / e( L, b) e$ S$ P ` * \# p( d" o* y; A( H" b- I
valueStr = SysAllocString((WCHAR *) L"1232"); : I* W4 P( H; `$ K% `5 _; R* o VariantInit(&pokeVariant[0]); * V# J9 r8 P# e5 [7 [# A2 @
pokeVariant[0].vt = VT_BSTR;& N8 p1 i9 I/ y, T
pokeVariant[0].bstrVal = valueStr; 1 c _: G/ @- T: r0 q2 C/ Y- h/ m4 y. m5 e: x+ }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & y; U$ K, @' y- H3 z VariantInit(&pokeVariant[1]); . G. ]. u# \9 {4 K
pokeVariant[1].vt = VT_BSTR; 4 k! M, Y, o; v2 W$ w6 a: U pokeVariant[1].bstrVal = itemStr; & O, E% q# u) R' Q& f8 P6 V* \ i% V5 v5 C! `! @
topicStr = SysAllocString((WCHAR *) L"system");2 u1 w3 u7 R2 J4 N6 v
VariantInit(&pokeVariant[2]); 0 X( W9 Y/ j' G+ i+ e. E pokeVariant[2].vt = VT_BSTR; / w; ^3 ^6 Y8 H) y' k pokeVariant[2].bstrVal = topicStr;& U* W$ B# \/ h' M9 d* C$ }1 m
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// Set the DISPPARAMS structure that holds the variant. ! M2 O0 v1 E% k p8 p# G+ q9 D ) n- B. v& h% z+ H, ~ dp.rgvarg = pokeVariant; 7 i" i5 d! U4 N dp.cArgs = 3; ; ?: M2 E" E" s% L7 b dp.rgdispidNamedArgs = NULL; 0 L% e$ [7 S% e, g5 ?3 s dp.cNamedArgs = 0; ! I3 y4 z/ ` J* |1 n7 g+ H $ u. w" z6 W- C) q: Z" c// Call IDispatch::Invoke()4 D: |! r6 I, t0 L% w$ A6 k
5 x3 O5 b+ n+ l hr = m_pDisp->Invoke( ! f! l, c, D; O3 G pokeID,$ N5 R1 P# I2 G5 ~8 i* T
IID_NULL," X4 R4 [" K( W8 J! m
LOCALE_SYSTEM_DEFAULT, 2 f( Y7 @ X0 [. U DISPATCH_METHOD, U' t2 [7 _( Q" S+ W &dp, - h( f# @0 a9 @0 ]/ f NULL, # K( O) E9 d3 ^$ e6 Y &ei,% i2 w5 A! \: t; y& m( {2 A
&uiErr); 6 t0 f8 v+ }) h# J! i2 ^" d2 D" {/ J" V+ ^8 p, y Y
SysFreeString(topicStr);- k+ T! I7 b# Q! r. Y
SysFreeString(itemStr); V$ ^+ L5 @. q* B ]) W+ H SysFreeString(valueStr);+ b6 B; {% k D3 M" g9 `' d# N6 p" v5 F
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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???' e3 Y0 W1 s, W& k) |6 E
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????; l: q2 [: j4 J# h3 T7 F& L
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6 x# ?/ F8 x: n+ p6 B# Y- A$ p2.这是request的程序8 ?8 q! a i! c6 y
// Request a value from Extend8 B. O) V* z. [- \2 [* o
//6 a3 o! k) h! e1 z" w# v
// Initialize the variant that will hold the BSTR. Set the variant's 2 i$ z* u5 F- w+ _// type flag to indicate the fact that this variant holds a BSTR. Place the $ E1 z7 e' R# M' d9 p// BSTR into the variant structure.& Q$ k5 [8 D6 U& g6 W
) j7 d8 ?( h6 h# F. U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! }- E9 L2 s' R, }
2 A9 c% [2 w9 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 U( ~( h q) J/ {
VariantInit(&requestVariant[0]); 4 h P8 B/ R7 w, @ j! n
requestVariant[0].vt = VT_BSTR; ( s" |4 f5 `1 F; _+ n4 R/ i requestVariant[0].bstrVal = itemStr;$ c6 ~+ w6 Y3 T4 X/ O
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topicStr = SysAllocString((WCHAR *) L"system");3 s$ O8 ]3 I/ H9 [9 X/ Q7 j, J
VariantInit(&requestVariant[1]); - y/ l9 F- o6 j, X4 g% c
requestVariant[1].vt = VT_BSTR;" x9 N+ I/ W4 h" x! D* ^, ]
requestVariant[1].bstrVal = topicStr; . v* }7 ~5 d- G4 C. m, ?! [9 m $ Q6 i, X* Y' n5 C3 ~" i) ^// Set the DISPPARAMS structure that holds the variant.) p' Q% U4 b2 ~/ z1 x+ a7 x
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dp2.rgvarg = requestVariant; ' K3 u. w. z- _' g% ~ dp2.cArgs = 2; 7 O @$ H) _9 n, l dp2.rgdispidNamedArgs = NULL;# I N8 O" u" [
dp2.cNamedArgs = 0; 1 l1 ^. D' g' o4 G ( d2 I, A* h4 W% n var.vt = VT_EMPTY; U9 n8 Q2 B. C# o1 J) M( C8 ^; ?! b5 D0 _2 @
// Call IDispatch::Invoke() $ k. @1 }6 n+ d/ ^' C4 w( W4 p5 R9 K+ o8 B5 }/ r
hr = m_pDisp->Invoke( 3 c& Y) i# j* T. y0 [! [ requestID,3 h: p/ k+ e" G- ^# r& v
IID_NULL,7 d6 a0 J8 G' i
LOCALE_SYSTEM_DEFAULT, ) G" c' |% _8 M DISPATCH_METHOD,) V2 i8 O, [1 K Z: m7 M
&dp2,6 J# i: |0 D- U% N$ I% u9 d
&var,2 ?- G% I/ ?- ?4 Q3 }1 z/ W
&ei,& y, m8 ^# v* X. e! |
&uiErr); ! K$ k) w+ N9 N + N+ ]$ i [6 z5 Q' w6 m6 X SysFreeString(topicStr);: I7 T/ x- A5 e8 d% h" e
SysFreeString(itemStr); Y9 a# m% w; I3 c: ~- h1 `
请问该程序是获得extend里面的哪个值?2 ~, j1 E( C9 ] z: e
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????