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 x) L# b1 t/ x1 Q) LName = (WCHAR *) L"Poke"; 1 U. ]9 A6 U$ x _ 9 I5 Y% Q/ F( w" \8 G1 M) v
hr = m_pDisp->GetIDsOfNames ( * [9 c: ^; r2 A. w IID_NULL, // reserved - V8 R1 c1 g z( Q1 H T L# n &Name, // Array of names to get IDs for ) @0 H- t$ b7 J+ U% ^7 z% h/ H 1, // # of names in the array / L5 p7 e: `% w# t3 V LOCALE_SYSTEM_DEFAULT, // System locale " ^3 |3 K, |; L, s/ W( m2 Q &pokeID); // Array of IDs to fill on output4 p% c6 t% ~3 |* @; \4 c0 }$ ]
6 l/ ~3 Q( h2 X6 I6 A if (hr)% M4 t7 ^4 T, C& _, C- }% X2 z4 D
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MessageBox ("Get Poke Unsuccessful"); ( u% R* @' P/ s- w ^ return; / ~0 W9 m) g# e$ Y } . ]* z- E5 D9 s; P- f3 r) k! p" A' w& Q+ G
/**************************传递数据给extend**************************************/2 D6 h% U2 |# }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% u! r3 L" K7 W$ o, U& ?
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valueStr = SysAllocString((WCHAR *) L"1232");" e% r c& h1 T: Q( ^, p
VariantInit(&pokeVariant[0]); / z* R* K9 c+ x0 W- x
pokeVariant[0].vt = VT_BSTR; & a- x" v" N) ?" r/ G, A7 h) ] pokeVariant[0].bstrVal = valueStr; " L. k1 f9 B$ K' M# B* H, N' G' B( [& o2 H: Z% D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; Y1 C- `+ u- ~ VariantInit(&pokeVariant[1]); / a: [$ L5 L+ h6 s0 t pokeVariant[1].vt = VT_BSTR;5 y) J1 ] y" `, ~, a, _9 }
pokeVariant[1].bstrVal = itemStr;% `, X! s2 T7 [) R: `3 d$ }( w
8 _1 Y& g9 F6 t topicStr = SysAllocString((WCHAR *) L"system");% V+ g/ i c2 I8 t2 ]$ P
VariantInit(&pokeVariant[2]); 3 r; U+ Y7 p" X- j/ p pokeVariant[2].vt = VT_BSTR; : T- J; c4 z7 ~' }( R( \ pokeVariant[2].bstrVal = topicStr; $ o: _# ]! Y7 v8 ]2 a# l0 k, h {5 u* L, H4 h1 a! c7 z; R" I// Set the DISPPARAMS structure that holds the variant. " M9 B2 p6 i( G1 r) l6 f$ x& S/ B7 h2 s, c0 L$ B
dp.rgvarg = pokeVariant;% ]. U# Y) R- u$ k3 O5 C
dp.cArgs = 3;" Y+ D2 Y2 B0 K! M* n% t2 V E: R
dp.rgdispidNamedArgs = NULL; W' P$ N" T) ?3 s
dp.cNamedArgs = 0;, _% K9 K+ I% F4 q
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// Call IDispatch::Invoke() # i6 ^4 N0 T+ V" c' O: F / J& {8 [& X1 ^" b: ]' ^ hr = m_pDisp->Invoke(7 W( g2 }% s+ h6 q
pokeID, 9 z: k8 U* V' E3 T5 S IID_NULL, M- `4 p& f! U& x. I! t4 d LOCALE_SYSTEM_DEFAULT,$ v5 S- _1 G/ X7 N
DISPATCH_METHOD, 9 M, M! ]- l2 m" D$ ^6 z. J &dp,, Q' g! A0 d$ ^! H
NULL,7 E4 \2 I+ q3 H1 s; S; C
&ei,0 s. M$ _/ t) }
&uiErr);$ `1 C3 O$ F0 m% Z
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SysFreeString(topicStr);! `; x9 w7 e% I0 V
SysFreeString(itemStr);) O/ N$ u; @, V! O0 S8 w
SysFreeString(valueStr);+ P3 ~ O0 ~* y
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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??? 8 ]% L# C1 O2 k$ \0 g. S, V5 z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???? & m/ w" j5 x* I7 l2 i: h6 E1 v8 d5 @
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2.这是request的程序6 X$ n" X) T: b: C; N
// Request a value from Extend 6 ~9 y6 |& @1 P$ q. M//* M( m2 T, `* m9 d
// Initialize the variant that will hold the BSTR. Set the variant's * ]9 n( [3 {/ E2 _ I0 N// type flag to indicate the fact that this variant holds a BSTR. Place the H- U1 J8 @; F7 }3 Q) a4 \% Y// BSTR into the variant structure.& `- }) ?! f8 e& \0 K
! b2 T) J& f6 { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 ?6 d; O/ E: B9 l : O8 Y" F- A0 {. [# ~- D3 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! a( G6 a7 R9 C VariantInit(&requestVariant[0]); ) d% A0 _* C, E requestVariant[0].vt = VT_BSTR;5 {8 f; m7 V' I7 S: x# {/ W
requestVariant[0].bstrVal = itemStr;# s+ A6 C) W# m6 v7 F3 O
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topicStr = SysAllocString((WCHAR *) L"system");+ k' S2 v/ M" w d0 M
VariantInit(&requestVariant[1]); 6 X% b2 O+ L4 {! e$ f requestVariant[1].vt = VT_BSTR; 4 W( g2 N1 i7 Y requestVariant[1].bstrVal = topicStr;0 ?$ r; e6 W9 F* M) G8 E& I6 V
2 x7 q# g- [" ?, g' _1 x( L// Set the DISPPARAMS structure that holds the variant.: f! X# e: }1 }0 q5 t
: w B7 Y+ O4 l8 c+ y* ] dp2.rgvarg = requestVariant; 3 L% J- {4 G4 @, O: A. k dp2.cArgs = 2; & V) |4 E+ Q8 j8 K: T; l dp2.rgdispidNamedArgs = NULL; * z0 a& m- _& _9 b2 q) L" a( J dp2.cNamedArgs = 0; * q$ J; B- Y& n/ i* m. N2 | [- Y) O$ |" P8 m; F
var.vt = VT_EMPTY;& C7 Z9 F( r3 {
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// Call IDispatch::Invoke(): Q8 q) x* v: k: F, {
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hr = m_pDisp->Invoke(8 E- G2 `' m8 V7 d: Y
requestID, 9 E# }: g8 K# w z5 ?" d; a& z) b IID_NULL,% P2 e6 u0 h7 ?9 m
LOCALE_SYSTEM_DEFAULT,% K* |4 I2 s% m3 K
DISPATCH_METHOD, / o' |$ R* x( e2 U9 ~ &dp2, w& S8 f/ [" d
&var,# {6 P h. o! \9 i9 D: Z m
&ei, $ Y4 d, {( M8 M, j6 M &uiErr); . m- _: r! ^# a/ d: C, V' `" q0 ] / Y v% {! z! u6 j) d) u4 A4 V$ m: a" A. y SysFreeString(topicStr); 5 m( p9 U5 a9 b7 o SysFreeString(itemStr); 8 e1 k$ T$ a2 V7 N% _; ~+ c4 L' C请问该程序是获得extend里面的哪个值? 5 K$ E4 R, `, m5 C$ ~4 ], O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????