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:" w* G9 C: g. D+ h+ y. \/ L
Name = (WCHAR *) L"Poke"; \# V/ Y* Q; n* G5 a8 r + z/ l3 U0 D3 J( K: A. v" ~6 ?& [ hr = m_pDisp->GetIDsOfNames ( ' R. S7 O5 D# u* W IID_NULL, // reserved4 t7 ^2 k/ _' U4 d$ S
&Name, // Array of names to get IDs for % Y; d$ w5 b, R0 x6 }# `5 o 1, // # of names in the array 0 o& g/ f+ i. f) t1 Q" u8 q" E LOCALE_SYSTEM_DEFAULT, // System locale% d& ?% F# y/ ~ S
&pokeID); // Array of IDs to fill on output ' s: a" C* K' r0 L" I ) N' K! Q! ]3 k' @
if (hr)% m! G) t; t. d* [! n: |
{ / Y! a( r/ E: h8 ~ u6 _& Y; d0 m7 q MessageBox ("Get Poke Unsuccessful");2 e6 e2 r4 a. P0 G
return; + i' F0 e) n Y. e2 d } 4 }3 C5 H7 D' e# Q: Q1 m! _9 ^; q6 a0 Z
/**************************传递数据给extend**************************************/, X* h9 b5 e F% T7 Y: m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! e' m- M1 I5 d' E * ~5 X, G- F) X& T- W
valueStr = SysAllocString((WCHAR *) L"1232"); & u; F, R2 J6 r VariantInit(&pokeVariant[0]); 5 ~: v4 K ^; A5 z) A
pokeVariant[0].vt = VT_BSTR;2 y: n6 I! M9 ^6 y4 U8 b
pokeVariant[0].bstrVal = valueStr;4 ]9 \3 ?7 N) F" }; S
3 m( m) z3 ]' Z' \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 |+ I. I+ L" u
VariantInit(&pokeVariant[1]); ( a- i9 s5 B6 N) }
pokeVariant[1].vt = VT_BSTR; ) K( O3 ~2 q- z4 i2 M7 K pokeVariant[1].bstrVal = itemStr;% V8 n. }' E2 R6 d
* j' T r. K7 W$ w topicStr = SysAllocString((WCHAR *) L"system");0 B1 H7 l* l2 N
VariantInit(&pokeVariant[2]); $ Y `8 m$ u! J# e* r
pokeVariant[2].vt = VT_BSTR; " I3 [7 f* e& _) t: C6 N i pokeVariant[2].bstrVal = topicStr; 7 t4 X' t+ o; S8 x4 O! W9 Q6 [3 E2 C8 n! a
// Set the DISPPARAMS structure that holds the variant.- C+ w- t) H1 q+ W
8 m7 T! G, Z; U# i6 S
dp.rgvarg = pokeVariant; M# y0 O; @) }) p, V
dp.cArgs = 3; 2 `. i r5 G( ]0 B9 p& j9 E$ s dp.rgdispidNamedArgs = NULL; / M; ]: B' W! ?( I dp.cNamedArgs = 0; 4 ^2 }& F- c1 u, X f5 h( h* z3 b. }/ i/ X) V4 q/ ] j
// Call IDispatch::Invoke()/ J) d2 O/ i3 t" C
7 V2 G! O6 q+ W* G- F: O hr = m_pDisp->Invoke(+ ]: G% A3 z6 {/ Z
pokeID, + M/ P& Z: H( o' A6 K IID_NULL,# K; ~8 ^" r9 r! \. R3 I/ t: Q
LOCALE_SYSTEM_DEFAULT, 1 E5 s; N2 ?# l/ D* J" {9 k, R DISPATCH_METHOD,$ B8 J2 t; ?) t4 J! g( c5 t7 y4 n
&dp,4 o$ h4 a0 L+ w3 [
NULL, . @# a( S% g8 ~: r6 s0 r0 { &ei, ' C/ O/ ~/ y1 T3 x/ @$ p &uiErr); . N6 ^ ^3 \5 j5 y% u N: K# r7 g% `# U' w; H* J
SysFreeString(topicStr);0 q5 t ]5 L* H# H# C
SysFreeString(itemStr); & f, \/ |( O. U( n7 P. i3 y SysFreeString(valueStr);" n6 C, [/ ]+ {$ u: P* e
( m2 C( b+ a8 k7 y" j1 `0 q4 x2 w
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???: e. T1 }5 x$ P/ E
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???? ) S6 M9 m1 z; P# H3 m8 N. X6 G0 H, f% C& `9 [' Z
) H1 b' s& b: u/ @ G+ G6 W% `3 _6 b2.这是request的程序 ' y& a/ H/ T) X// Request a value from Extend 5 T: f. O2 ~( i7 C1 z o//3 a: ~+ m/ `/ h* m
// Initialize the variant that will hold the BSTR. Set the variant's , W( y/ o6 {/ {1 M. ^8 R6 x, ]// type flag to indicate the fact that this variant holds a BSTR. Place the* B9 f& n! w; J+ w+ c6 n' i
// BSTR into the variant structure. / D( c( a2 o: d/ p; ~) h/ l. k - G& z" p. h8 N* y: _; q1 k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 n- c7 j/ y' y2 w4 {2 S6 F/ S
2 }0 k' i* A6 J& p# ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; m8 F5 J% _7 b* C2 Y% q
VariantInit(&requestVariant[0]); # x2 w9 T' W9 Z" m
requestVariant[0].vt = VT_BSTR;, t6 ~9 s5 R! L
requestVariant[0].bstrVal = itemStr; S9 d8 c- K, B- Y' t" u7 U7 \0 b
: f: T9 g( f2 [# Z- n! Y( u) {& N topicStr = SysAllocString((WCHAR *) L"system"); ( p) O. v A+ V h( f, g. c. @ VariantInit(&requestVariant[1]); : p8 T5 ~. h6 n" q0 T requestVariant[1].vt = VT_BSTR; , v' V4 g. J$ |$ j1 ] requestVariant[1].bstrVal = topicStr;8 ?: H' p. o7 Y( H1 r
3 `* _$ a% `5 B( K% R3 J8 [// Set the DISPPARAMS structure that holds the variant., U% P5 q. o3 L( V( s
0 S* B% z0 u# ~& M% ~ dp2.rgvarg = requestVariant;! K0 c' a6 T% m+ u* o
dp2.cArgs = 2; ( O1 R2 b! A5 k7 R dp2.rgdispidNamedArgs = NULL; : `5 p6 E/ A& M dp2.cNamedArgs = 0; # Y4 n. U3 j P( K9 | E : J5 d2 H8 T7 T, E1 V# U var.vt = VT_EMPTY; + j6 E8 @ H( E 9 C( H# h% X5 G' r4 ] K// Call IDispatch::Invoke()4 @8 T5 c7 n |* w: F
" A3 H) X3 G3 P! E hr = m_pDisp->Invoke( ) A x+ H$ m, z. \) R0 E" D6 J7 x requestID,, l% q: V% a$ }
IID_NULL,/ U5 @8 F* _. m" p% Q6 f
LOCALE_SYSTEM_DEFAULT,( m- L7 u( Y: G
DISPATCH_METHOD, / r5 L5 }, Q, p) _* p( f &dp2,' N# g8 F! i' o( c6 x/ A6 U# B: _
&var, * _$ R$ ?, x* N: t' h/ ]! o &ei,; Z# Y; t+ \+ @; a. R
&uiErr);5 C9 R7 d8 j/ x
4 n! q- j) T. q# R
SysFreeString(topicStr); / A1 e9 @' n, d3 I6 t; ^$ `" o( [ SysFreeString(itemStr);$ [* t) R( D2 Q
请问该程序是获得extend里面的哪个值?( x4 D. z6 W0 x {( p; 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????