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:0 n6 T" e' [2 u
Name = (WCHAR *) L"Poke"; - _/ A, J3 X: V. S 6 d4 K4 E# _+ c hr = m_pDisp->GetIDsOfNames ( $ C2 Y- m/ G# c IID_NULL, // reserved ' ]: \0 A8 R+ \( ?6 @* L &Name, // Array of names to get IDs for # g4 l( a8 C _- C8 z) ]% P 1, // # of names in the array# c/ o$ K- H6 g) @- Q: ~3 A1 l5 l
LOCALE_SYSTEM_DEFAULT, // System locale" F3 G$ p; W7 x/ C% J+ `. o9 T
&pokeID); // Array of IDs to fill on output ' B6 u8 J, _9 k; C& M8 M0 T7 w' d 2 Q: h: E" W/ P
if (hr)" I, k$ K( G L7 o K3 \ w0 b
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MessageBox ("Get Poke Unsuccessful");, N4 `/ U. N2 l8 a* d
return;& ?9 L% g. S7 B7 I# z
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- ]4 H5 S# g' N& |2 D. v/**************************传递数据给extend**************************************/ 3 h, ], k& |8 |: j9 o4 M7 `, U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* G3 \# ~2 i+ M0 M+ z+ A8 m
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valueStr = SysAllocString((WCHAR *) L"1232");. `9 g' K i, y
VariantInit(&pokeVariant[0]); 6 D0 F) p; H: O
pokeVariant[0].vt = VT_BSTR;4 {% ~! H$ K- J$ j
pokeVariant[0].bstrVal = valueStr;4 ~6 G. V* i3 g& K, C
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, n/ p% p1 i2 Z9 g. k) L2 E- t
VariantInit(&pokeVariant[1]); + M1 D2 X- ]$ x pokeVariant[1].vt = VT_BSTR;6 Q1 V6 T+ m. l, M* m2 K" n) P, \
pokeVariant[1].bstrVal = itemStr; 8 u D b$ {# V: K; K ' ?: D7 f' @; Z, T topicStr = SysAllocString((WCHAR *) L"system"); * K4 J9 c* r/ \$ e VariantInit(&pokeVariant[2]); ( Y* \1 R& m+ g
pokeVariant[2].vt = VT_BSTR;* g- a( |. _1 [! k4 m |: C
pokeVariant[2].bstrVal = topicStr;' I/ M2 `6 Z8 D0 }9 U v7 W
: x7 v* n9 Q2 A* [// Set the DISPPARAMS structure that holds the variant. 4 R: o+ L/ q2 \# [2 V- `3 O& |$ u) A) y( \! a
dp.rgvarg = pokeVariant; 7 \; u* x' t) V5 I% b9 k; d dp.cArgs = 3; 5 X: s% T! Q& N0 o! A) f2 E$ p( M dp.rgdispidNamedArgs = NULL;5 [8 l8 U _2 Q
dp.cNamedArgs = 0;) @+ Q: V8 ?& v9 J3 L: S- \6 \1 b
- f! z; S2 b# Q* U0 E4 f' Q9 u hr = m_pDisp->Invoke( 7 O' Q2 Q y; h2 v pokeID, 7 u. M; z) K* J7 U: u IID_NULL, ' o5 ~0 x7 m( m% w8 r LOCALE_SYSTEM_DEFAULT, % u4 d5 @' h7 Z l2 y DISPATCH_METHOD, : T# M& a, ^. L) ~' N &dp,: c- \0 s% e9 d! ] ^
NULL, b- m* o9 _0 T1 ~
&ei, - u& }' [; ?- Z% W2 H) Z &uiErr); 5 S% B N5 N5 [9 J R ) D- U- e1 M/ G4 }( b SysFreeString(topicStr); 4 P2 M4 i; j$ z8 S6 v SysFreeString(itemStr);5 K8 ^: A/ G( w3 z% S3 @
SysFreeString(valueStr); # Y+ _: R6 M7 i" G W2 k% Q$ k$ P" }
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??? ; N! T& X$ x, f4 L" 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????! K! P$ I; F4 X: z/ l
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2.这是request的程序5 H, d& r, O! o
// Request a value from Extend4 E( S0 p9 m& M, @+ N+ L
// 4 Y6 l/ N2 p1 ?6 x+ {: n// Initialize the variant that will hold the BSTR. Set the variant's : A* u' M! E. i# o- u1 Z// type flag to indicate the fact that this variant holds a BSTR. Place the ' N, q: z2 t: v6 x2 r// BSTR into the variant structure. " }% B I4 E7 m8 U4 A1 Q % P4 R4 a4 w2 l- T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 c& j3 h! H& f& k/ R9 ]1 c 2 C. J4 R% H5 C- q3 _; r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + M, S ^- [! a% m5 \9 q/ Z" N: h VariantInit(&requestVariant[0]); : Z, E% u m- k, B( u requestVariant[0].vt = VT_BSTR; / B. A# l, ]* _8 J% d" Y4 f5 U requestVariant[0].bstrVal = itemStr; : _2 M- u" J4 A3 n3 |$ W4 Q! G# J% K2 j6 M( x# k( n m
topicStr = SysAllocString((WCHAR *) L"system"); 3 ]# ~/ h6 A( P4 q; W; k I' Z VariantInit(&requestVariant[1]); $ p) J2 q+ R% R, a e8 `4 ]6 v' i, w
requestVariant[1].vt = VT_BSTR; ' n2 A. |' ^0 Z. A( I requestVariant[1].bstrVal = topicStr;8 C1 k5 _( ]3 {1 u
8 y. e6 [/ U; q* p2 S! I$ \// Set the DISPPARAMS structure that holds the variant. ' {: m- ]& ~7 ^6 Y6 C' Y1 `9 j- P8 ]( P% C, V
dp2.rgvarg = requestVariant; $ X- A J: U" R5 A3 L2 f dp2.cArgs = 2; " x3 l8 h3 N+ a7 Z% \! O6 S& m dp2.rgdispidNamedArgs = NULL; 1 F9 R6 e9 L Q5 Y# X0 X dp2.cNamedArgs = 0;. N1 t+ o T8 c+ ^$ D
" B5 d2 W1 B: ?8 M' G var.vt = VT_EMPTY;6 P' O) y7 {7 Y$ M
- d" F; M; |& X9 j9 o' C4 q7 b// Call IDispatch::Invoke() 6 E3 _- @5 m. E1 {, L! s9 ~# @6 h. D/ I
hr = m_pDisp->Invoke(# s2 G/ x8 |4 W+ M* r; a
requestID,$ r8 P4 m a9 N) i+ P; N% ]1 D* C" E
IID_NULL,4 ~/ D! y! x3 a/ N a5 Q
LOCALE_SYSTEM_DEFAULT,& m/ @/ ~4 z' \2 T
DISPATCH_METHOD, 1 B/ s& c( E$ _ &dp2,4 K n0 A: M% k" ]2 Q' B# K( _
&var, 8 O1 n4 X. R4 h% ]; D9 P4 \ &ei, * E7 z: G; ]3 V7 \* K4 B# q5 N1 S &uiErr); 7 X2 g% B: r6 R, F, T9 k; \( k1 F& x5 X1 W; z! Q0 C( T7 m) |. G
SysFreeString(topicStr); - e/ a6 d" B8 _" I& S SysFreeString(itemStr);8 y+ P- O: Q/ {3 }0 G: n" t
请问该程序是获得extend里面的哪个值? 1 g6 M- z! e5 l3 a) E& l1 J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????