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 ^. ~6 \$ g9 [Name = (WCHAR *) L"Poke"; 3 Z; c# g& e" n" o , j+ y2 f; Z. L* } hr = m_pDisp->GetIDsOfNames (& H5 W5 y7 [) o& {
IID_NULL, // reserved " l0 r' s# W+ W4 _ &Name, // Array of names to get IDs for 6 D" D6 G/ V$ x' D1 V, `' P+ r& j 1, // # of names in the array2 E4 W0 o, C7 J3 q! m4 @" O
LOCALE_SYSTEM_DEFAULT, // System locale 9 _0 C' h5 e1 I+ p: C1 w &pokeID); // Array of IDs to fill on output 7 l8 e e: F9 T- |+ Y6 l ! Q4 c8 b8 s" E R! _/ r8 ?9 V- v if (hr)7 N4 }5 T. a7 N
{ }% D% n% u5 y' N: G MessageBox ("Get Poke Unsuccessful"); % l! X) W( j3 k, x1 ^ return;! L% N0 {( ~ f% A0 O% H
} 2 a4 O. ?- z1 _0 c 6 ~% U6 D. N6 A" \4 c& g3 t3 w/**************************传递数据给extend**************************************/! P" G) F( r* i+ Y9 k% i; _% Q* a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); {+ y& N" Y* ?# {: j: B1 \" N* \+ N - H3 I1 t; |/ l( y0 W/ d4 i8 W valueStr = SysAllocString((WCHAR *) L"1232");& z4 i# L6 h" `3 E" |; n3 s) r0 T3 k
VariantInit(&pokeVariant[0]); ) v6 U) \# G. a$ t2 C2 r
pokeVariant[0].vt = VT_BSTR;7 N. Z, L% n; B4 @
pokeVariant[0].bstrVal = valueStr; 1 R0 |. j1 t, F ~8 F4 K: }3 {1 ^$ I9 r
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & b# m3 d. \8 @3 {) g VariantInit(&pokeVariant[1]); & O- a6 i; e: `2 x1 H. v9 s pokeVariant[1].vt = VT_BSTR;% ?( u$ b8 o$ e' s2 I3 q0 S
pokeVariant[1].bstrVal = itemStr;8 D3 N7 l9 p0 X+ ]( i8 I
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topicStr = SysAllocString((WCHAR *) L"system"); $ Q1 ?* W& q2 _; }9 E( T5 | VariantInit(&pokeVariant[2]); " ?: Q8 A1 d# ^% _- {! j, L& R pokeVariant[2].vt = VT_BSTR; 0 G, l) X; j n2 n( G2 F- H& l pokeVariant[2].bstrVal = topicStr;/ j: C2 S6 Z' J; j
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// Set the DISPPARAMS structure that holds the variant.* T& J1 q" |" w! C- h
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dp.rgvarg = pokeVariant; ; Z2 L8 c8 t) P3 X dp.cArgs = 3; * @! ~2 W. D) h. [ dp.rgdispidNamedArgs = NULL; 4 a( Y: z# K# \ dp.cNamedArgs = 0;2 a1 ~$ e% K) ?# b2 \' D
) D- W5 k0 R7 h+ ?* U$ A, a5 V- e. J// Call IDispatch::Invoke() ], m, X6 O. r4 m& S3 H, f) e6 I- }; C! e9 c
hr = m_pDisp->Invoke(5 q6 V) B/ f: r, k" G1 p
pokeID, 9 g9 `; s$ i" g, F IID_NULL,/ I. R" E& x( C
LOCALE_SYSTEM_DEFAULT,; l I, V3 S$ W4 f- G% g2 a1 _8 T. o4 m
DISPATCH_METHOD, + C. A8 K4 l1 h9 G. F7 v &dp, " Z [7 T/ E, l' M NULL, 0 I2 |4 H( n5 o+ J1 v6 l) n$ w &ei,: F' `0 P& N3 n, |) [7 n8 l
&uiErr);. W/ d3 \5 ~+ O6 i7 k; K0 L
" ` f5 d% h" C# x" I7 ]
SysFreeString(topicStr);/ C% [7 s* Z% x
SysFreeString(itemStr); & O0 i- P _- Z. I; E SysFreeString(valueStr);. l. p6 R7 ^/ D. O9 ]
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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???" m8 M- Q4 u7 z B+ Y
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???? . G5 U, l p, w' l1 B( ^- w) @4 K& V& h. v3 u: h( {
) K C! J9 r5 w- {3 _! K; l2 ?2.这是request的程序 4 I, W- V- B( b// Request a value from Extend* X0 v: @& M% H T( R" k5 l
// . {# f/ v* K8 n// Initialize the variant that will hold the BSTR. Set the variant's+ _, L* C; }8 s1 ~
// type flag to indicate the fact that this variant holds a BSTR. Place the5 t1 q, C. I7 i- N W0 B2 |
// BSTR into the variant structure.- H# N1 m3 n9 w' p% u8 @/ X( \! H
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 Y' [; x+ r+ ~, ^! P
0 d7 s# z% p% k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # h5 b# m9 A2 |& I VariantInit(&requestVariant[0]); - s0 l" l/ r5 Q- X9 X, U S' t
requestVariant[0].vt = VT_BSTR;0 ?+ r( B- v. d
requestVariant[0].bstrVal = itemStr; ) _# o5 T3 H$ \9 ~% i4 s' B' c/ l, g6 k+ h/ Z7 M
topicStr = SysAllocString((WCHAR *) L"system");# c5 E4 |. G0 X, ^+ D! W% u% I
VariantInit(&requestVariant[1]); & @1 b8 Z0 B, N% Z; j" I
requestVariant[1].vt = VT_BSTR;% K& r2 |' I+ I* {$ a( P
requestVariant[1].bstrVal = topicStr; 7 p. Y x+ n1 n- m % b4 _: i) d& ]* [: c- z' a$ W9 ^// Set the DISPPARAMS structure that holds the variant. 5 L3 b# j! G0 U/ I( @/ ]( }$ S+ z0 O( M8 T2 n$ E* p1 v
dp2.rgvarg = requestVariant;( p( y+ m: c' W
dp2.cArgs = 2;2 {" ^, g3 j5 r* O8 [- X; d
dp2.rgdispidNamedArgs = NULL; 3 {; E7 u; B& E: T6 y. O2 a" B/ F G dp2.cNamedArgs = 0;8 _3 v; E4 C6 H" k* L
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var.vt = VT_EMPTY; + b- t$ Q3 h5 p" ~. `* G! x5 U2 ^; H
// Call IDispatch::Invoke() 4 b' w( e2 Q. {2 N* _& i 8 \0 a- w X4 u2 M+ r2 y hr = m_pDisp->Invoke( 0 K3 n; z" Z( |% \1 h requestID,+ f* }3 w/ X0 n" e' }" ~& n
IID_NULL, & y6 `% i( q' C1 o$ N# o; T LOCALE_SYSTEM_DEFAULT, 1 X( f8 U+ Z) J3 X DISPATCH_METHOD,$ _" K1 F3 w0 j' @; D8 s) m
&dp2,' ^0 ]$ R' x: `% {; p& U* w
&var, & g# ? f% i: J' n &ei,# s- F" A/ @# d# D% s; }
&uiErr);- J! j; q6 O, O9 I$ x5 y
5 \) g& c2 }; I* l2 Z( t SysFreeString(topicStr); ' L1 E, o) [: Z SysFreeString(itemStr);6 _8 z3 f+ H( C
请问该程序是获得extend里面的哪个值? 3 O) O- I. V1 g% g; n/ B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????