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：" O1 n. o7 L! L7 e
Name = (WCHAR *) L"Poke"; 6 P! U& T! }5 y p& x + H$ L) W2 r& s; c% ^% B5 b& E& z hr = m_pDisp->GetIDsOfNames ( D8 ?" X, @8 I2 R; V# \' |! E* b IID_NULL, // reserved K5 S h5 O# b* Q8 c &Name, // Array of names to get IDs for 3 }/ M5 R4 ]! m% Y5 X& M0 |, @) k5 M 1, // # of names in the array$ L3 @; a; ]( `- k% C4 E
LOCALE_SYSTEM_DEFAULT, // System locale% B# r* P- L4 o3 t
&pokeID); // Array of IDs to fill on output - I. u5 k) X1 o& o' `% o 8 v( w) M3 n, a4 U if (hr)# \ E: T9 X; M) n% J7 h k' I: }3 r6 X
{ M) ?5 C8 }! Q0 X% { MessageBox ("Get Poke Unsuccessful");! v! y |. P* ], `3 p- ~6 V
return;0 e* w3 G- s1 P6 w r+ b/ O
} - D- T5 K! R" \. U1 ` $ Z& w0 J9 d/ u0 D$ p1 n6 c1 T/**************************传递数据给extend**************************************/ ' h9 F& x* s2 y5 t i) K/ F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ ?2 g8 t8 k Y. C$ ?
. G9 `/ D$ T, x/ O valueStr = SysAllocString((WCHAR *) L"1232");/ ]* l! c& d3 C6 t/ J6 |: o n5 P N
VariantInit(&pokeVariant[0]); 0 Q2 w2 P; ]/ Z
pokeVariant[0].vt = VT_BSTR; 5 H9 [. s6 f' K+ q0 p: E. D pokeVariant[0].bstrVal = valueStr; O4 f, A1 ?9 O! {/ B! F1 n0 R' |0 }- u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 V: R7 [0 J, _/ T0 P: |) ~& H2 a VariantInit(&pokeVariant[1]); ) a7 ^8 U0 q+ q6 a
pokeVariant[1].vt = VT_BSTR;5 @3 k" |+ ^4 |' E/ N
pokeVariant[1].bstrVal = itemStr;4 o% c; ?1 Z4 O, g9 n
7 e* Q" w8 i1 H% p0 h8 E, V topicStr = SysAllocString((WCHAR *) L"system");! S K- n1 Q1 z- X: V
VariantInit(&pokeVariant[2]); / {! E5 n0 |9 S4 R
pokeVariant[2].vt = VT_BSTR;1 V- R3 L% v" s g; d) M5 d
pokeVariant[2].bstrVal = topicStr; . f9 I8 I3 }+ p/ u& x7 p 5 \$ O# B$ _" f. B// Set the DISPPARAMS structure that holds the variant./ X2 x8 k; P* ^, P& A* I
' C6 I. J/ U2 F# {2 C/ z/ O
dp.rgvarg = pokeVariant; L% ~: v. L5 Z6 H$ E dp.cArgs = 3;1 `; ?4 `6 r4 D7 b& S, d' j
dp.rgdispidNamedArgs = NULL; ) V7 @" u% n- _) T( P( t6 [/ n dp.cNamedArgs = 0; r' d6 T; ^" ^7 k/ J& n
- U* Z+ t9 d( ~3 j! {- l3 L// Call IDispatch::Invoke()% u% [- Y* b1 w* }3 s
/ W8 j( g& f* i; y
hr = m_pDisp->Invoke(# y# H2 @8 s/ j7 D
pokeID,& u- N, N( o* m6 S
IID_NULL,1 Z$ X2 Y, B" l6 Q% Z" j5 j
LOCALE_SYSTEM_DEFAULT,& o6 L) v; |& t9 G1 Y" @- W
DISPATCH_METHOD,7 v; ^. E; Q% ^ @, e3 U. @/ f; S7 A
&dp, " j& j& E% d7 {# K NULL, ' b$ @# Z3 W8 U+ H2 P &ei,0 j2 `! K) `$ C7 i I
&uiErr); + {# A/ K4 m. e( u r8 }8 x. z* ~1 O) o7 W! n; G
SysFreeString(topicStr);9 j; V [" F h
SysFreeString(itemStr);5 b* @# M8 S. @, }5 t' e: [- \
SysFreeString(valueStr);' @5 B. Y! i+ S* i, x! t
0 i- k& t# d+ r) y7 `5 p9 F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？？？- P$ w/ W. e" t
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？？？？ 2 g. k9 ]. w* V. x: h6 _, O" e1 k% m0 r% q B& b5 x
7 H. U& [. v! b8 u4 X
2.这是request的程序/ s Z# e& I5 q5 M8 c+ s
// Request a value from Extend & D0 u, t6 s' Z2 N6 C' F8 `//& G t( T7 f6 t7 V( `
// Initialize the variant that will hold the BSTR. Set the variant's+ w/ G2 Z2 o8 _5 b9 }
// type flag to indicate the fact that this variant holds a BSTR. Place the " K8 D- q" o7 m6 q// BSTR into the variant structure.& D: R' y3 D7 b# {& {9 x" j0 l, h7 M
, J0 ^0 M$ V2 }% [9 Z: l2 c4 b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; Z1 x- z* S6 L6 u ' H' }% Q# b4 I6 [5 K5 _' w
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + A/ E% B) B/ B8 |7 d6 y+ J) S VariantInit(&requestVariant[0]); ) e; o8 N% O8 i9 `0 g4 Y' s+ _% n* u requestVariant[0].vt = VT_BSTR;! \3 p8 D* b# T }' p2 s* y6 N
requestVariant[0].bstrVal = itemStr; , H( }8 ]3 X7 @! A" B9 Q5 R) ~% G# u/ j4 H2 R. N
topicStr = SysAllocString((WCHAR *) L"system"); 5 c5 G6 w: Z4 I, [: a6 m* h2 \* f VariantInit(&requestVariant[1]); " k- H4 z" n' b l( Z requestVariant[1].vt = VT_BSTR; + E9 W/ v( r! h, h# | requestVariant[1].bstrVal = topicStr; 2 a$ x' M7 z% v" y3 E! [; a$ F " M( O! o6 ]/ l: f4 c( S& [// Set the DISPPARAMS structure that holds the variant. 5 b4 K& J8 ]4 Q Z/ k2 N & |/ \& r# E; g) c7 Z dp2.rgvarg = requestVariant; 5 x! \% t1 W, H! f6 O dp2.cArgs = 2; 7 E0 R8 G( Y" z! n: q+ T dp2.rgdispidNamedArgs = NULL; * [+ j6 z2 ~% Y# G6 b dp2.cNamedArgs = 0;# H9 A6 t& v- Y$ f
) v- _4 G2 U/ f
var.vt = VT_EMPTY; 6 {$ N8 M; e, j( d- _+ @7 K: W6 P4 Y8 T8 o
// Call IDispatch::Invoke()' f7 e+ i9 F" |; [6 a6 B T
6 y) c7 e. q" s
hr = m_pDisp->Invoke(* r' N1 P, Y6 F/ Q: y6 |5 [0 o3 G
requestID, - D* K4 [ J, g1 a, z IID_NULL, 6 X( Q3 q, `& v& F LOCALE_SYSTEM_DEFAULT,, n% Y: @9 o3 i+ o; x
DISPATCH_METHOD, 4 M0 \ f! i8 ^5 E &dp2,0 U( @4 P1 Z# ]! [# [
&var,8 e; H# N. C6 g1 a* o9 G
&ei,& E4 F2 h( c& V% S" b/ n
&uiErr); * O. n0 |$ N2 M7 z" G# A , Y; {) V& n. y; { SysFreeString(topicStr);" ~/ c" G' S1 ?8 y0 S r" q* U* \
SysFreeString(itemStr);$ H4 [% P5 `& M, U+ `
请问该程序是获得extend里面的哪个值？+ v5 c- t% K0 |& k3 Y
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？？？？
发表于 2008-11-25 19:37:03
