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： 9 j2 O( H2 d$ n& T3 oName = (WCHAR *) L"Poke";- O) T4 `/ [$ S$ j( L3 \2 ^
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hr = m_pDisp->GetIDsOfNames ( ! b+ {0 `+ k4 ] IID_NULL, // reserved $ Z8 Z( h* f) l( d0 B4 P &Name, // Array of names to get IDs for. {6 M& Q6 L3 Y. K" ~ l6 r. j
1, // # of names in the array % h0 Y; M4 b0 S6 O& m8 z LOCALE_SYSTEM_DEFAULT, // System locale% T" v% x* \% E9 X
&pokeID); // Array of IDs to fill on output, ~& l, z6 D! a$ m% G0 V
, P2 F5 w; K, ?& O- H1 D if (hr)) ^% Y" {% U( F2 \
{! A' I0 J& S2 e, Z r
MessageBox ("Get Poke Unsuccessful"); 9 E! I) J. J% a& `, f$ _( T return;, M4 {- L7 I e G1 K* R H9 S7 x
} - e4 R. Q" U0 j4 E# `8 l& }( a. a" O. R5 f
/**************************传递数据给extend**************************************/, U, M1 I/ ?/ X! j
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); a& k/ D, ~- L0 Q 0 A! u0 I1 x c, f4 P# p
valueStr = SysAllocString((WCHAR *) L"1232"); $ n: g$ |0 q; k6 d VariantInit(&pokeVariant[0]); / G8 [2 V; d/ p W! w
pokeVariant[0].vt = VT_BSTR; ! {6 Y% Z: |; N* R( r pokeVariant[0].bstrVal = valueStr; ' D3 L1 }% H y/ c4 ^8 g6 z5 N% {: I" r% _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / h) x9 E+ r3 e# F, k1 f VariantInit(&pokeVariant[1]); % B$ Z% V6 z6 j! @ pokeVariant[1].vt = VT_BSTR;; u8 i' K% U# B# K% i. a1 g
pokeVariant[1].bstrVal = itemStr;6 W5 s4 z% x! Z
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topicStr = SysAllocString((WCHAR *) L"system");+ Z H+ e5 L4 R: v; y
VariantInit(&pokeVariant[2]); - R# m! v7 M. U5 t" x pokeVariant[2].vt = VT_BSTR; & h$ y1 J1 Z% Q- S pokeVariant[2].bstrVal = topicStr; $ g% f5 U4 P+ z7 M : W+ S0 u: F: x; X, l// Set the DISPPARAMS structure that holds the variant.5 w( Z8 y: Q4 K$ ` G! W
2 p" y+ r: b; M/ R+ V dp.rgvarg = pokeVariant; - l% w ]/ A( k* A4 m$ ~. w dp.cArgs = 3; 6 s1 f. u# |% h+ g. Q$ I( x dp.rgdispidNamedArgs = NULL; 9 b) ~$ R5 l$ f. l! N dp.cNamedArgs = 0; # {# F- _+ w; p+ {' l4 X: d/ o4 C' a* t
// Call IDispatch::Invoke() 9 T) v; }0 `/ Q! c/ y4 u+ t+ B$ o3 X1 x
hr = m_pDisp->Invoke(5 N. t) ^* W- l U& m, G
pokeID, 8 A* L( E9 ], S7 [5 _( j; b IID_NULL, ; R; d6 u2 l- f LOCALE_SYSTEM_DEFAULT, 9 t( l% {! s# [. ?9 w DISPATCH_METHOD,4 u2 ]% b$ D: f! y
&dp, 6 ?4 \/ T' a3 |( b NULL,6 h: @. i0 C( I0 a1 W
&ei,. T2 h# P2 x' P3 D
&uiErr);4 F6 \. d5 a7 e( [* S7 s4 r6 Y
/ P; c) X. p- O SysFreeString(topicStr);' y5 t, d' R+ u. i0 ], R
SysFreeString(itemStr);8 k2 k5 k! {# w3 R
SysFreeString(valueStr);; l3 q3 v% E. S9 B
v0 G7 n1 e9 [* i; B2 m) M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？？？ & x w6 F0 q) e- E. o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 z0 Z% G& U/ @: p' ~/ w" y+ ?2 J
% B- @5 V0 ~5 A " Y+ r$ x' O: }# F! c2.这是request的程序 / c* Y$ B3 ?5 v// Request a value from Extend2 }+ e: }: w. o: b
// , t' t1 |( f& d3 w# s9 X// Initialize the variant that will hold the BSTR. Set the variant's8 m( j+ V c1 o, ?2 J
// type flag to indicate the fact that this variant holds a BSTR. Place the5 i, Y* k( {% R* J9 n: u b1 r, v% [
// BSTR into the variant structure. ; W4 K/ [# |$ G" M6 X# O1 v& j1 z* _- ^, |' v1 y7 W1 a7 G8 c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' L3 n1 e9 e& v- M9 ~( G* B1 F2 O
5 K5 b2 r6 z0 V7 g( y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* N* H' }0 ?5 ] X3 T4 L. g: w
VariantInit(&requestVariant[0]); 6 I c4 Y) ~' Y
requestVariant[0].vt = VT_BSTR; , s2 Z* o* A* ~9 b# v! W6 d" m requestVariant[0].bstrVal = itemStr; 2 N* J2 ?# u B: g' G0 e/ R7 E1 K; H: m8 N! A
topicStr = SysAllocString((WCHAR *) L"system"); & E9 G7 u n5 ?9 [( e VariantInit(&requestVariant[1]); ( X& w- @$ O' P, {: @ requestVariant[1].vt = VT_BSTR;; z2 }) d5 i* \( `
requestVariant[1].bstrVal = topicStr;$ H! T5 P* X! {" S) b5 `( O h
) t# J4 I% z9 L// Set the DISPPARAMS structure that holds the variant. 5 K& g0 \( B0 J, ^5 [# [5 Y# ]4 l# i Z0 T. Z" J5 d
dp2.rgvarg = requestVariant;2 M6 W0 R" E& ~4 K$ _. d0 J
dp2.cArgs = 2;5 T0 X, M! p- y4 l1 p
dp2.rgdispidNamedArgs = NULL;/ T- ~) \! s" H# @3 j- H
dp2.cNamedArgs = 0; 2 m+ T2 u- Z5 C" ~- e3 d( C0 [6 R 6 L- ~/ z% c+ r' \7 \ H4 f* v0 X var.vt = VT_EMPTY;4 N; K) I& h2 |) u0 p3 c1 I
7 v3 i& ~# j. ?; v$ M% j7 v// Call IDispatch::Invoke() $ c# _ l# S. ?$ {. d % I' k, B1 x/ M3 w1 s# p7 x hr = m_pDisp->Invoke( 9 v" o4 T- ]' W0 C" J3 s; h requestID,- G3 ]8 z/ f! I: z+ x" I2 ^
IID_NULL, ' r( K- A" C, U! t* v" e9 k& d" W; V LOCALE_SYSTEM_DEFAULT,/ E$ n/ K0 o# F8 q2 m" p. L" D! j
DISPATCH_METHOD, " E r' ]" i5 }0 E &dp2, , P. C/ A9 r" Q, I* T! ]5 w; e &var, . q4 Q1 F5 i1 V &ei,' M7 w9 e$ T2 }2 v7 k. ?' `
&uiErr); , _& q9 f! I" v* q5 O2 v1 p) n# I3 ]) E. ?+ H% v2 N2 X" }; d9 A
SysFreeString(topicStr); P! U- g4 ^7 V. f$ |
SysFreeString(itemStr);3 r( A3 m0 S3 N# i5 y% w1 I0 l4 `' G
请问该程序是获得extend里面的哪个值？# i4 q( }1 P% Z# i. k$ X
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
