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:' \ Q: T# w! K" [. w$ P h% O
Name = (WCHAR *) L"Poke"; & H$ f1 ^) ?" {/ O; O! B 3 F: [: ^/ f1 |' O+ z0 q H: n# X1 T hr = m_pDisp->GetIDsOfNames ( , v3 F% C+ ~3 C1 u& l5 M IID_NULL, // reserved / D' z7 y' D8 `6 C' v5 L; L &Name, // Array of names to get IDs for. Y ~; ?$ @" I8 Q4 Y
1, // # of names in the array 7 H4 f( t0 c. O% h. b LOCALE_SYSTEM_DEFAULT, // System locale 2 i* N, D9 n3 r: j- A5 n &pokeID); // Array of IDs to fill on output: e; A+ N) @4 g: H; p c9 K' w
& {/ d' U% u1 |5 Z if (hr) ' C3 F: c* p# ?. F0 S {4 }" N4 [4 X. R) G# P- ~' T* F3 l
MessageBox ("Get Poke Unsuccessful"); 7 ^ E% ]! ]2 D5 T/ k, ]2 z6 b return; ; t9 |" H/ _# `8 M& z, V+ W }9 G% ]1 h3 V5 ]4 u% p$ _4 O M- a5 L
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/**************************传递数据给extend**************************************/ ) C# V) G" R/ U! U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) r/ C6 @; E6 ?& J! v# t
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valueStr = SysAllocString((WCHAR *) L"1232");# e- B! p, @6 ]8 n5 Z7 F
VariantInit(&pokeVariant[0]); + U" N1 a, f+ d. z& g9 M3 o
pokeVariant[0].vt = VT_BSTR; ! _, [2 R( [' F+ S5 z pokeVariant[0].bstrVal = valueStr;1 M5 g* l! f5 L5 c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; S+ e- L5 u4 S: e( } VariantInit(&pokeVariant[1]); $ m3 `5 {! S' t pokeVariant[1].vt = VT_BSTR; ) V+ r' ~5 ]6 S/ p A5 ? pokeVariant[1].bstrVal = itemStr; & O+ f3 k. l; @: ?' C B! U/ @% ]+ B8 C3 M4 `5 v$ d+ n3 t, x
topicStr = SysAllocString((WCHAR *) L"system"); / ~' _% N/ Q4 C VariantInit(&pokeVariant[2]); 7 d4 r' n8 @) ~ pokeVariant[2].vt = VT_BSTR;3 }3 c9 c# r1 Q- K' p7 M
pokeVariant[2].bstrVal = topicStr;# K9 m5 W0 R8 Z" s
% B8 ^( m( F, Y* B/ ?- i// Set the DISPPARAMS structure that holds the variant. / f7 I+ u2 p+ U3 M* W s% Z5 J! x$ W7 D3 e2 ~. R% J8 Z
dp.rgvarg = pokeVariant; - R0 X6 v0 M' y dp.cArgs = 3;* x/ `" e3 o9 U- e* M
dp.rgdispidNamedArgs = NULL; 0 d+ D' X- N6 |$ c' d/ Z dp.cNamedArgs = 0;! ?6 b5 i2 W3 |3 @' s
8 V7 u8 h& Z1 f) d* w) D1 j// Call IDispatch::Invoke(): U. K- v; [' z' j F
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hr = m_pDisp->Invoke( . g0 R- L7 K' t pokeID,: x f5 T& C, l2 m
IID_NULL, : _ `: e+ B( K9 Y+ m6 L# A ? LOCALE_SYSTEM_DEFAULT, % f5 ~! j# Z3 j9 { DISPATCH_METHOD, - e4 ~9 K) a# K5 m* B &dp, , e, a6 a. _( j i( x NULL,- F. C8 R3 N8 i7 x
&ei, 0 E( k& B$ w" x7 H) D; n; g &uiErr); ' H. {1 ]0 i4 o( o3 `; W2 ~5 F+ v: X7 Z J& _
SysFreeString(topicStr); ) F0 ^. b S0 J SysFreeString(itemStr); ) d: w* f k. a0 I1 u SysFreeString(valueStr); 8 M/ D" d- A9 v: }; W8 E/ ]. ~2 U0 ~, N' T4 z/ t, C
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???$ Q3 h! P5 l- ], |" Z- x
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???? 0 }+ |8 Y, M+ t3 ]3 c 1 ?# d2 _% X Y9 V+ W5 k4 F4 t ) w5 a9 o! o! y W2.这是request的程序 & U+ F" L7 P5 q7 W8 k5 c+ o// Request a value from Extend ; H+ j: f6 X! K' d% L* H! U//; a' `$ h! d: s9 b
// Initialize the variant that will hold the BSTR. Set the variant's # O4 J1 A( I/ P/ s// type flag to indicate the fact that this variant holds a BSTR. Place the; N2 `' {) ^2 G
// BSTR into the variant structure.3 a+ B' c8 Q. j" S- i& H5 C4 @' s
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % W5 f& H( @( F6 L% h5 X 7 P) F# V/ v' P' z, R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + ?% G0 v2 |" o! z; r+ B* D VariantInit(&requestVariant[0]); # [4 L9 x g5 r/ u4 N, Y" E requestVariant[0].vt = VT_BSTR; 3 `4 x, H: n5 t4 e, E& f" | requestVariant[0].bstrVal = itemStr;6 v6 t) ]! ?. G5 m6 V: C
' a2 l6 r* f+ U" ^4 a* ] topicStr = SysAllocString((WCHAR *) L"system");! H1 s( f/ h5 m. K5 n- f2 F
VariantInit(&requestVariant[1]); 1 L0 O7 H5 q% ^' P$ U) t requestVariant[1].vt = VT_BSTR; # p: J2 A1 _" P" g requestVariant[1].bstrVal = topicStr;- z; {& u2 y. N1 i% `& U
6 B, e2 V+ U, H$ ]7 U, K5 h// Set the DISPPARAMS structure that holds the variant. 9 |% w9 u1 z3 Q- ~ ; y5 Q/ D8 w4 O% } dp2.rgvarg = requestVariant;+ k: ^9 q6 S7 a9 Z6 f1 B- b
dp2.cArgs = 2; ' h! q. M- T% H6 N dp2.rgdispidNamedArgs = NULL; ' _% O. B V) U f& c, [% A+ ]5 V dp2.cNamedArgs = 0; ! U8 P) g& u" j, J6 C; z* u5 ^' U/ ` s- `
var.vt = VT_EMPTY;# T9 n6 T1 [; |* a) `( z' \ c! I2 f1 q2 |
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// Call IDispatch::Invoke(), p/ P6 h8 m$ ]4 V2 G1 J
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hr = m_pDisp->Invoke( : l Y$ f8 Z, b- m requestID,( t) G1 V# x& v5 d4 I$ b
IID_NULL,. D# g2 J3 O/ d; [/ m/ K; j: m# m
LOCALE_SYSTEM_DEFAULT,/ J8 ?. F' c R+ P/ G% I2 ?( @* G
DISPATCH_METHOD,) U' g0 q; K/ ]7 Z+ Z2 s& o* p
&dp2, : v, \$ v( q5 n &var, * e5 n& g4 y/ s, C &ei," j) q7 D" U2 w L h. g
&uiErr); ~' N: q* l6 @+ K( D' D i! I% q c: p' e6 B% ] SysFreeString(topicStr); 5 |* T" K& V5 O! ~% c1 E7 W SysFreeString(itemStr);* |! p: l+ t$ l8 y; N
请问该程序是获得extend里面的哪个值?7 e; X2 Z3 L! Z# l* M$ R8 r! t
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????