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: : a2 d# ]1 I7 ?8 mName = (WCHAR *) L"Poke"; % ]% Q; J8 ?! u$ x - U* Y. q3 w% u) M hr = m_pDisp->GetIDsOfNames (2 g0 I0 p: A# v. [* e
IID_NULL, // reserved6 O: T$ b1 h3 \# P0 P: s% b: K
&Name, // Array of names to get IDs for " u6 d' I* j1 |" q; ~3 c 1, // # of names in the array 2 D7 f! K6 j; r* G- B0 K \. j LOCALE_SYSTEM_DEFAULT, // System locale # i* V N1 \ ?, X D; ]: E &pokeID); // Array of IDs to fill on output & K+ m8 c2 |' u& K# Z0 { + V q, \4 y2 L, ~6 l+ y# k if (hr) P0 @$ e i) r+ u$ a
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MessageBox ("Get Poke Unsuccessful");8 V: Z) P6 q5 W
return;# R+ T& a% G; B3 H' a1 X
} 1 r3 C6 m0 T! U; u5 `! q& p + Q( q5 j9 D, z) e/**************************传递数据给extend**************************************/ : F q- X% p9 I# g, @5 f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 a9 q! I M5 b5 W6 {
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valueStr = SysAllocString((WCHAR *) L"1232");' ]+ O3 R+ I6 c* C( G) p5 o+ q" H
VariantInit(&pokeVariant[0]); 4 }2 J( x/ i6 ~" m, m pokeVariant[0].vt = VT_BSTR; 3 p7 g8 b4 }; T# Q0 T1 ^3 D6 t pokeVariant[0].bstrVal = valueStr; 0 w3 P0 X- ~0 l3 b; n, |$ f/ u 9 P. J% Z4 `4 w0 G$ l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& m4 J F2 g6 a) u5 q& a7 D) o
VariantInit(&pokeVariant[1]); % ?6 U) C$ u2 F4 |) @! B pokeVariant[1].vt = VT_BSTR; - {& |6 u2 a; E pokeVariant[1].bstrVal = itemStr;. u. z: C5 {% e6 N# \7 W, y
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topicStr = SysAllocString((WCHAR *) L"system"); . \8 V$ S6 i0 _. z% D8 F0 Q a VariantInit(&pokeVariant[2]); ; W# z3 e6 X n M/ O- J! \ pokeVariant[2].vt = VT_BSTR; , N) S ]0 c9 Y% A6 M0 s pokeVariant[2].bstrVal = topicStr;7 F+ N% [4 E4 @8 G6 c2 |8 m3 }
+ |6 c$ D+ h: i; c! U// Set the DISPPARAMS structure that holds the variant.# H) u3 a P; v/ G
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dp.rgvarg = pokeVariant; - G0 t7 E+ s8 e- E+ p# H/ r3 O dp.cArgs = 3;4 L& F3 v( g2 p+ A" P' P! F3 m
dp.rgdispidNamedArgs = NULL; : S0 @4 d1 C2 Q" J7 ?9 k+ | j/ I dp.cNamedArgs = 0; 8 {, l$ Q( m! N0 g# f# O) S z1 r: t6 @5 m# w. Q: s3 l$ n
// Call IDispatch::Invoke()$ ~3 y* Y8 z1 j3 T4 B$ F2 y3 c
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hr = m_pDisp->Invoke( ' ?+ ] X- E6 m7 | pokeID,$ @9 X2 T8 P O' v3 r! p& U, j
IID_NULL,+ y, ~5 s. u5 | j5 \
LOCALE_SYSTEM_DEFAULT, $ g+ W8 {4 {5 q0 m DISPATCH_METHOD,4 B, @7 [/ N1 r: K* O5 ^
&dp,3 c2 r, f5 i! z- N
NULL,) `& o! R6 \6 Z
&ei,6 i! U% O) w, ~ a7 a
&uiErr);9 S% h* X; d, h. o
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SysFreeString(topicStr); ' d: j$ p" l3 C8 }7 ~4 v, T# R SysFreeString(itemStr);1 G# b2 {' l- y- I' k S* n
SysFreeString(valueStr); ; h. L9 \% S- X4 r. p ! _% s/ w) X' V" o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???% O; y0 E% A! ]7 S1 n
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????6 c, o/ S/ j( X! b
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2.这是request的程序" i5 l% H/ R* b# ?7 R' o s4 q
// Request a value from Extend : n% U3 X; v6 T( K# Z! j3 S* i7 ~//6 X% q3 C ] [. ~* f, f [
// Initialize the variant that will hold the BSTR. Set the variant's$ a( z$ w. Z0 v5 k) t U4 ~
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 L& H. R3 s+ A- P) S// BSTR into the variant structure.7 m! I. G( ?& s; O3 I+ p) Y
+ `# z5 c6 ]* N$ B+ S3 } requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 \/ H& L6 ~% j3 B. y) n ) {1 L% v( G, n* I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 @4 S$ g. R. T7 M& V+ ^: M VariantInit(&requestVariant[0]); . N. j& b5 n5 `/ _3 v0 u5 {: a+ A4 U requestVariant[0].vt = VT_BSTR; / B6 \% R! ]6 N' x1 H requestVariant[0].bstrVal = itemStr;8 L o$ H O( c y
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topicStr = SysAllocString((WCHAR *) L"system");5 J/ e( B; A+ V
VariantInit(&requestVariant[1]); % ^; T# N* r; T- L$ a" \% g9 L requestVariant[1].vt = VT_BSTR;( b+ j" V$ }* p1 Q( B
requestVariant[1].bstrVal = topicStr; 7 u$ I3 t7 n+ f# E1 ? : V- J9 K. a7 b+ a7 ]" o// Set the DISPPARAMS structure that holds the variant.$ u8 v: x1 U W- S( j/ k
7 `3 |3 w c* V F D9 Y dp2.rgvarg = requestVariant; 6 _) v/ t5 U* G4 k k+ D* s dp2.cArgs = 2; - F! t) ]6 V, N dp2.rgdispidNamedArgs = NULL;% j/ |; N) C* S
dp2.cNamedArgs = 0;# A2 M, E7 U8 I6 N' i; C
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var.vt = VT_EMPTY;6 S5 G" w7 Y P4 `5 L
. w9 L$ h9 B0 }5 z- Z- A0 t6 J! b// Call IDispatch::Invoke()1 P- ^4 o) f/ u; w# t' D2 A
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hr = m_pDisp->Invoke( ; b' x. r4 Q: q& V9 x, X requestID, ; F' d, g9 P7 H* } IID_NULL,; p1 J9 C1 i2 r- Q$ L- x$ Y
LOCALE_SYSTEM_DEFAULT, l3 Q# B: g9 I2 D( M) c DISPATCH_METHOD, $ V! S+ A1 l8 G+ D) P$ J1 } N &dp2,3 ]0 G) s/ K* q4 r' N
&var,* D3 z! T, p- @: A$ `
&ei, # x3 M) U9 o/ p( Z &uiErr); ! ^- D4 ?# g9 x' O 5 Z# \0 M3 ^, Y SysFreeString(topicStr); / ^+ f$ M; o6 K1 | SysFreeString(itemStr); / [, x U& b0 P1 V, D. r- I" V9 h请问该程序是获得extend里面的哪个值? 9 F* _0 k& s2 p0 ]0 c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????