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: 6 I# N+ [: z4 ^3 cName = (WCHAR *) L"Poke";' M5 T9 o S* v3 ~$ F1 L& k
# i( C5 Y2 `- w1 q hr = m_pDisp->GetIDsOfNames ( 3 P& F8 Y+ I7 H! W5 j IID_NULL, // reserved: M5 g" y, u3 [( {1 l$ R
&Name, // Array of names to get IDs for 6 H5 L$ `' V( V/ P9 k 1, // # of names in the array( ]0 u7 N, U9 y, \5 a5 n
LOCALE_SYSTEM_DEFAULT, // System locale! ` a, {( D ^1 a
&pokeID); // Array of IDs to fill on output- ]! X" q, T n4 S- Q
5 K, j0 n8 \3 I( K5 B4 w- `
if (hr)1 J$ c% V8 |& |9 Q4 d
{ : [7 Q: d+ Y0 k3 t5 b MessageBox ("Get Poke Unsuccessful"); - a4 D% G) T! a$ c6 l8 _ return; 8 t- k8 Z: `6 r; c }- n) e1 u) h3 l7 G( D8 J$ e# s
2 t5 j% E2 S6 V S) G0 u4 C/**************************传递数据给extend**************************************/ % T- W' i( t- r0 z& a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 q: k( J: }% }2 d- ?4 o* L
# s& ~) ?2 i; F+ K8 i4 @6 h+ X/ |
valueStr = SysAllocString((WCHAR *) L"1232"); ; D/ L) H9 X: O3 S% ? VariantInit(&pokeVariant[0]); 0 T, ?" o, \; N& c pokeVariant[0].vt = VT_BSTR;# \0 g, Y' P0 _
pokeVariant[0].bstrVal = valueStr; 2 C/ A: t# _: _% R # ^- c, z4 T* B1 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 m3 T& u& B; |6 y8 {& t3 z) t: i N
VariantInit(&pokeVariant[1]); 2 z0 T; N( O$ a1 _& W pokeVariant[1].vt = VT_BSTR;! K l y& ]4 F: z, g
pokeVariant[1].bstrVal = itemStr; + A$ r5 a+ c. X " u- t% F( n( Y. y3 W topicStr = SysAllocString((WCHAR *) L"system"); 8 r8 @3 P/ j9 f( r/ }% s VariantInit(&pokeVariant[2]); ) {$ P1 B9 o! q4 Z& G pokeVariant[2].vt = VT_BSTR;6 b; O, j* {& g; m# N7 b9 ?
pokeVariant[2].bstrVal = topicStr; # x* W T" ?4 b1 J0 X _ O 5 G0 a+ w* `; |2 |4 [// Set the DISPPARAMS structure that holds the variant. : V# Y% v0 n5 L f4 Y& } I # q: N! A) z, A1 _, k4 K% j dp.rgvarg = pokeVariant; 3 |4 T# i9 i6 m% Q2 { dp.cArgs = 3;2 n1 t4 J8 Y R; Q+ i" A; n
dp.rgdispidNamedArgs = NULL;9 i5 ]+ h1 T6 t, ]2 V
dp.cNamedArgs = 0; - p( c7 n1 U& r! A5 ]) N3 M3 x 9 X( g5 S( z& {# H- w// Call IDispatch::Invoke() : v( \5 c8 s& {$ u4 z- _! @' p" p9 C+ J5 n" k4 C& B3 v
hr = m_pDisp->Invoke(, u' g4 r; W$ {' m' m# K' e0 B
pokeID, # L( a! m: l8 W% q1 W IID_NULL,( @ A6 B$ B1 Q1 \) G, A
LOCALE_SYSTEM_DEFAULT, : L4 [0 f4 P( V1 c DISPATCH_METHOD,9 j7 S* Y) ^0 ^1 M: _6 d S
&dp,2 b" d$ h/ I! O/ x# q$ S
NULL,6 ?$ y3 E/ j2 z1 |5 b9 [, b
&ei, ( i: c1 ~& I! [: b &uiErr);. z# ~; z4 X( S; Q' m
A; D4 T$ M; D SysFreeString(topicStr); 0 P# M! X; {5 ?" V. V- e+ { g SysFreeString(itemStr);0 X6 y4 Q$ Y) H( s o
SysFreeString(valueStr); . C# s _1 `& y# L O3 i% P$ h, [, B' U) k$ i0 P0 N% K+ R$ K
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 m+ Z& H: q7 k! Q5 E1 c7 ~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????: }: R) i7 s! G1 F5 y% ~/ U
2 ?- o ]9 k9 i# i* E" h: S 8 R E( T+ T: J- F N% n8 g2.这是request的程序1 y$ J& I" Y) @/ \
// Request a value from Extend, t8 C# X& C! x7 \: O6 r$ R
// 9 H# t& b4 b) E! D" E2 `// Initialize the variant that will hold the BSTR. Set the variant's & ?7 q4 U: _) l) I// type flag to indicate the fact that this variant holds a BSTR. Place the3 L4 V0 \" S: K
// BSTR into the variant structure. 9 J+ z; P1 [ N0 g/ I* n* Z- o9 d1 r4 X$ h/ C6 g
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , f6 \7 w& J5 @( T$ p* k+ y 9 p& o9 {4 Z" r; s! r9 U+ m) G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. ~( |: S, D. H% ~ p6 @
VariantInit(&requestVariant[0]); 9 V, M4 Z! Z9 K$ Y) ^% f requestVariant[0].vt = VT_BSTR; 3 e* o$ A( P8 |8 A, K; _( m requestVariant[0].bstrVal = itemStr;7 E c+ Q6 @5 T/ b d: V
8 k @: S. N0 k5 e4 z$ y topicStr = SysAllocString((WCHAR *) L"system");, I% p6 u2 F2 z1 m4 A
VariantInit(&requestVariant[1]); 1 S) d+ b# O8 ]- d' X( a requestVariant[1].vt = VT_BSTR; $ s" F" o; f/ l6 E requestVariant[1].bstrVal = topicStr; / W: K5 X. q. j; p' g- _! Z 9 q( q& T0 ]' j' n// Set the DISPPARAMS structure that holds the variant. 4 a' m1 ~) U( q( U6 I6 D* \- h % a6 P" y' D; `% L dp2.rgvarg = requestVariant;" {( o. j" [ I ^
dp2.cArgs = 2;1 \: y! C" T7 X- A' w* x
dp2.rgdispidNamedArgs = NULL; [$ V* t. P1 q' ]. e/ C) w
dp2.cNamedArgs = 0;' q) Z4 @" ~: X. q2 r6 E
6 V! m' v' T+ y. \" O
var.vt = VT_EMPTY; . I4 x0 a6 _; F7 |8 v* L7 Z3 v }- `3 T; Z/ ~& i# w
// Call IDispatch::Invoke()9 x/ l$ q: X$ G8 y. q. D
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hr = m_pDisp->Invoke(5 i9 M# N5 ^( I) `& |( m
requestID,1 w" y; M- H( b& h! P
IID_NULL,- L+ X# S9 A1 V2 p; o" u
LOCALE_SYSTEM_DEFAULT, * a" q. p4 N5 S) X DISPATCH_METHOD, 3 [: [( N* N! H2 J0 {0 D. x; v &dp2,! y4 @ J+ ?4 }1 H5 e- w5 U
&var,- B" w( }( i" e6 Q( n" S6 H1 ^5 p
&ei,. y- {& g& G" T& a
&uiErr); / C8 x! O) ?' ~& Y- ]3 C. n3 ` r( m+ Z: n4 R
SysFreeString(topicStr);6 ?" R% \8 W) p5 i: y+ R
SysFreeString(itemStr);7 J3 R4 y$ Q" R6 p9 w
请问该程序是获得extend里面的哪个值? / n9 D) W3 K7 V( C" e8 Z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????