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 c) K) V% L, ~+ y' t5 g# m5 j
Name = (WCHAR *) L"Poke";6 \' o# ^( i5 H
7 M X8 W+ q. [! S+ K hr = m_pDisp->GetIDsOfNames (7 S+ ~4 S% `3 e3 ^5 Z; t
IID_NULL, // reserved $ N( W! g0 P, ^0 m &Name, // Array of names to get IDs for & ~# h- |0 o9 U: j- n 1, // # of names in the array7 `1 b% U ~& y0 {$ z3 N
LOCALE_SYSTEM_DEFAULT, // System locale: S9 `. @% q4 M
&pokeID); // Array of IDs to fill on output 8 [. `7 Z: l% }$ ^ 1 m7 Y& i/ q% k x6 I1 T* h2 V8 b& ^ if (hr)( _ H* _! ]+ V1 m
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MessageBox ("Get Poke Unsuccessful");# a% N. j3 e* U
return; * W% x8 [7 w' }9 {; y, i) b$ Y }9 _$ v. c: B: t- E3 R
& \6 _* ?; Q! f4 x" X/**************************传递数据给extend**************************************/ 7 s e, f S4 d! {. S# H# ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 `9 q) ^9 B& b* A1 U, J - X# V: e6 k. M k) y/ y valueStr = SysAllocString((WCHAR *) L"1232");* U- H, M9 {+ ^: p2 F( ~5 i
VariantInit(&pokeVariant[0]); & s1 s& n4 ^& U
pokeVariant[0].vt = VT_BSTR;7 @+ ?: a& q& u# G! `& j% B
pokeVariant[0].bstrVal = valueStr; & E* @& d( s& q- S' W9 T+ e# L6 d1 A# y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 o8 D% \7 w. C( }
VariantInit(&pokeVariant[1]); 1 |, W- g4 `1 m pokeVariant[1].vt = VT_BSTR;' V" M9 ? g. @! x3 r/ ]2 P
pokeVariant[1].bstrVal = itemStr;$ @' j9 d& Z; E% `
: b! U0 w* X# A2 l topicStr = SysAllocString((WCHAR *) L"system");1 O8 b6 L2 s" m9 r) u7 D) @
VariantInit(&pokeVariant[2]); 9 n1 x1 }/ W6 T- s: P$ w$ q2 C
pokeVariant[2].vt = VT_BSTR; ) z u' F0 a0 l( p3 Q9 D0 ~ pokeVariant[2].bstrVal = topicStr; a6 B/ h& a5 O' N, k
3 S5 C, t# ~# X4 M// Set the DISPPARAMS structure that holds the variant.( g& g/ ?2 P/ _8 h8 \0 v
! z! K& A) q3 n( X# A dp.rgvarg = pokeVariant; / _4 u+ I: L7 x# Q4 `8 U' v dp.cArgs = 3; ! E Q* J' j9 Q' J: _ dp.rgdispidNamedArgs = NULL;: N* o6 B W$ e. `" K! v) ^
dp.cNamedArgs = 0;# c6 O& m% R- @, o, {
# ~' `* p6 J3 f! i
// Call IDispatch::Invoke() 1 s3 J( o- l! j: c; |+ b" T# J7 h% J
hr = m_pDisp->Invoke(: J* k3 W5 c Q7 V0 D0 m, }: j1 t1 N
pokeID, 1 G! b4 J: j, a3 W* \ IID_NULL, 0 J5 t; U0 d% c/ _% {; Z! | LOCALE_SYSTEM_DEFAULT,6 ] L" ]( _- f# n2 s& b" B$ g- E
DISPATCH_METHOD, ; S& O8 e8 `8 Q- s7 X &dp, y+ ^7 e6 E( g5 i
NULL,) [( R' X' ~$ A! S4 ~+ F& N& [( q6 }
&ei, ' l2 F" b. j' r1 E& M &uiErr); ; V- P4 {: M( I" u , a$ N! `1 ?! `. H SysFreeString(topicStr); & D4 b3 A1 C7 W SysFreeString(itemStr);8 E: X$ g$ ?# X
SysFreeString(valueStr);% ?% v+ `# [* n+ v9 D2 W* G: r
& w, q' W9 a2 M$ C* Q" H+ j
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??? : O6 j' a5 d! n# f2 ?$ Y3 X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????0 G8 A. q/ r( U. Z* }$ t& k
" v& y* N! W" l) [( r 7 H/ b6 N) {+ W0 U; S: H2.这是request的程序 : ~8 B3 j+ D4 L// Request a value from Extend " U/ j# r; u+ W4 f# K1 w1 I: A" O2 y// 1 P: ^1 Y% a7 z3 |// Initialize the variant that will hold the BSTR. Set the variant's8 Z; M' t B, e4 H' A
// type flag to indicate the fact that this variant holds a BSTR. Place the ; ~1 u4 T. Y& o. m// BSTR into the variant structure. . |* B1 |5 A% W3 W* j; c) Z4 H . N$ H( |9 Y+ K0 L; G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , M. A+ o3 u4 S* J1 I" M 7 F- r) X3 X# Y3 g" \8 l! T& |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 O/ @" f7 K* T8 s' y3 b' k* y4 d
VariantInit(&requestVariant[0]); % z2 a. O8 [$ p8 f& ` requestVariant[0].vt = VT_BSTR; 9 g' W" N1 B. @7 L( h- Q% o7 I requestVariant[0].bstrVal = itemStr;6 I+ D* c- Y! T9 Z
- v( a7 r' D8 { N/ }+ ~ topicStr = SysAllocString((WCHAR *) L"system"); : |" B6 |7 F3 J* u, [6 K% f. T VariantInit(&requestVariant[1]); . [* n, M9 G! N: ?# l
requestVariant[1].vt = VT_BSTR; 9 t; k3 d( U D' i requestVariant[1].bstrVal = topicStr;0 E& W; |: Z& G3 f4 k7 Q
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// Set the DISPPARAMS structure that holds the variant. 4 B% [$ B3 {& X2 ^ ( }0 S, ]' c% |1 w0 I) a0 K7 a9 | dp2.rgvarg = requestVariant; : O3 D+ z+ S ?+ O1 [ dp2.cArgs = 2;8 R8 y& i9 |2 g. V2 g
dp2.rgdispidNamedArgs = NULL;) q1 ^6 _/ X9 I4 U( O+ J/ h( f& k
dp2.cNamedArgs = 0; ) H' z, ^& v* D* C+ @- Y7 r . R" E8 Q0 a! G" A- O var.vt = VT_EMPTY;8 O2 ]6 q6 v' Z* q: W
* \4 a8 F2 n. X* m! x* w" d# ~) y// Call IDispatch::Invoke() : |: Q% O" e0 h3 j% i , ]' T' ^% H; S5 V$ O hr = m_pDisp->Invoke( 1 E: G( K) J7 | requestID,; d$ L$ _) D- V* _$ W4 k
IID_NULL, 1 f. q, G6 n3 I7 Z0 [ r, E LOCALE_SYSTEM_DEFAULT, # p/ p% D) G# z% [ DISPATCH_METHOD,9 I; ]! D6 j' n- s( g
&dp2, % e! Y% Y. ~+ {' [ u &var, / @( G1 Y& ]: Q! O) c7 J5 m &ei,& b- j1 U4 A( @4 H6 o$ t3 m$ ~
&uiErr); : A+ E. ~' |! Q% e" R% v2 u! p: X$ w7 J: N; h9 P" T, a
SysFreeString(topicStr); : W: e7 a) E2 @: W/ o6 { SysFreeString(itemStr); ' w0 I+ B' z/ Y% ^请问该程序是获得extend里面的哪个值?4 ]' Q" F( o1 C/ f. W! _
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????