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:5 h: F$ V# _5 A, M3 i1 s+ _
Name = (WCHAR *) L"Poke"; - d7 x" x+ B5 b" O $ H0 L+ z3 W( A) o
hr = m_pDisp->GetIDsOfNames ( % y9 y- Y% ?* |+ T0 _ IID_NULL, // reserved 6 f$ q# o ?5 ^. K% D; D &Name, // Array of names to get IDs for% c. | d d" q! E+ u: N
1, // # of names in the array" ~( L8 e; E3 W. r1 [+ U- X9 o/ c
LOCALE_SYSTEM_DEFAULT, // System locale 1 Q9 @, n8 _7 a' I &pokeID); // Array of IDs to fill on output ; |6 |& v( @2 _ 7 W% u* F2 S/ f; X2 p
if (hr)) I# q% V; H/ _6 }5 {+ {3 _& Z
{* L3 n% W% S- e
MessageBox ("Get Poke Unsuccessful"); ! ]* @+ n5 z5 h# t, {3 ^ return; 5 _1 ] ^' z, D' Q3 {! L7 d } & |4 n$ K! o& ~$ K3 {5 W2 Y0 n* x, b q6 X4 i3 B
/**************************传递数据给extend**************************************/& _: q6 o9 C h* q. v0 m" b0 ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); y# }; m$ d2 j' f# D. M) |/ s ' B& G J |, M7 g
valueStr = SysAllocString((WCHAR *) L"1232"); 4 @: J) }3 [2 w* P7 V VariantInit(&pokeVariant[0]); + [2 K! ~8 o X& D. ~
pokeVariant[0].vt = VT_BSTR; , y4 n' |. f% C- D- [. W4 i [ pokeVariant[0].bstrVal = valueStr; ) A+ w d. U+ T: @" f 1 |( Q4 m9 v0 B, O) Q4 Y9 R2 n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , _$ N: u. m5 u; [( S/ ?, C: N, F VariantInit(&pokeVariant[1]); ! Z2 x: o& }9 q2 Y R pokeVariant[1].vt = VT_BSTR; 7 U- ?, i8 j; R' x3 O pokeVariant[1].bstrVal = itemStr;' O0 A+ ~4 p6 |! k- J+ Z2 z
! i, Y. ^( m' ?# G topicStr = SysAllocString((WCHAR *) L"system"); , `' s Q/ {; n VariantInit(&pokeVariant[2]); ' Z! [: M" c. R. ] pokeVariant[2].vt = VT_BSTR;6 F# F# q, ~' q& q# O# G' A- a
pokeVariant[2].bstrVal = topicStr; # e M2 x; _8 Q+ W7 f; c8 H& s" d Y0 R9 A
// Set the DISPPARAMS structure that holds the variant., ^2 S; Q; `" ^$ K. q1 o# l$ c
0 I9 j. `1 _7 Y# u. ]3 u+ I( p
dp.rgvarg = pokeVariant;( o4 d2 Y; L4 Z
dp.cArgs = 3;: g( }6 m' g( l! E
dp.rgdispidNamedArgs = NULL; * t# v# R* a2 R" H dp.cNamedArgs = 0;' C4 Z5 H% e& j& s I: N( i
2 z% ~; R0 l$ J* ^# q5 Y5 ]; r
// Call IDispatch::Invoke()# {4 V, {* {' z# v) y" @
0 S- v6 u m( A' @
hr = m_pDisp->Invoke( % {) O, V9 g/ q- N0 L2 x) U pokeID,8 y4 C G2 N$ {, L
IID_NULL, % h2 [* d' ?+ F6 }% I) c) ? LOCALE_SYSTEM_DEFAULT,' t, {& V+ L7 u" k' I
DISPATCH_METHOD,' `6 h9 F! X4 D! D* y3 Y
&dp, & e7 s$ k, [$ ^ NULL, % q4 @" w- w3 j, ]/ w &ei,' n2 R' Q2 x( e0 X# r
&uiErr);/ X' l5 E f- e& E1 Q2 p" _
4 [; E% {# O) w# p5 ^7 x4 G
SysFreeString(topicStr);& c2 A J4 x2 j' d
SysFreeString(itemStr); 8 n5 b6 p p' r SysFreeString(valueStr); . \* T' M" Y# s1 P/ o# p- ^. R; Q; Z, d8 g" s2 R+ Y. x0 Z4 I
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??? . n: J& i, F& { b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????& i; O/ q3 U$ D( l
7 H, x7 D4 C2 v1 v9 ~+ s \* B1 t2 }1 m" }+ i
2.这是request的程序 H. F% H1 I: B' S; {' Y! X) [
// Request a value from Extend; k7 [7 o1 ]7 `, j
//5 |1 H- Z4 H8 M) i8 c1 ?0 g5 i
// Initialize the variant that will hold the BSTR. Set the variant's 0 P4 i$ l; K. }// type flag to indicate the fact that this variant holds a BSTR. Place the; } G! ?' p8 W7 D6 [3 o" j
// BSTR into the variant structure. # h9 R' t. d, H7 P6 q m5 C% ~8 T( M6 S) G* q$ H$ ?2 [
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); A1 z6 T. _- v9 l. W
: ~; m6 y9 r5 o8 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' k4 |* y: B2 c1 l8 [' ]" y9 { VariantInit(&requestVariant[0]); 0 m* a |* Q+ I5 U5 _, D requestVariant[0].vt = VT_BSTR;5 {; x+ O- |3 s3 b' F, {5 r
requestVariant[0].bstrVal = itemStr; 0 G9 I) U; a2 E d 4 P( I9 M' q% D/ f topicStr = SysAllocString((WCHAR *) L"system"); 7 i- C7 G; v6 s6 y2 c# q VariantInit(&requestVariant[1]); ' A% w, L3 E& O" q( D
requestVariant[1].vt = VT_BSTR;5 w% T0 l. k4 c# x4 _6 m
requestVariant[1].bstrVal = topicStr;6 {* G) S# q- @
. J0 M. u- F% n! f, T: N, y
// Set the DISPPARAMS structure that holds the variant. 7 e5 F+ q' {# |3 a# p6 H2 |$ ^1 ^9 l3 |& W, K; _5 L* u
dp2.rgvarg = requestVariant; 8 s" V8 L6 E6 a( Y dp2.cArgs = 2;$ y4 n0 ]+ a+ @* [! \) n+ a
dp2.rgdispidNamedArgs = NULL;+ K1 L8 j7 h: ~% h
dp2.cNamedArgs = 0; 5 f D% Q/ W. F* F ; V/ e- v, }# N4 U var.vt = VT_EMPTY; 5 S* ^$ T# G. {! s! d* |5 \8 `$ L+ i" ]
// Call IDispatch::Invoke() 1 {# U8 m! }. i$ K0 B; v7 k* Q1 W; G% b' n$ E
hr = m_pDisp->Invoke( ( C$ k) h7 U$ O: K requestID,( z- i' b' W. B
IID_NULL, 5 j6 c* F8 ~; m3 r, Q b LOCALE_SYSTEM_DEFAULT,& \% n% ? G3 ~+ [4 U7 V" o: B
DISPATCH_METHOD,3 m' E1 u( S4 q# W& R
&dp2,. {: j9 l, a; C: C# r; d5 G6 j
&var,4 S) S2 m& t( u8 g( X
&ei, 7 V; m- x Z& R &uiErr); - q, S, O$ E( S2 E% k6 N3 _+ C' E7 F' A6 ]8 ?
SysFreeString(topicStr);* }: f6 i) C: P& p* u+ F; t
SysFreeString(itemStr);, S7 K$ U+ ` T. D5 V! U$ G7 l
请问该程序是获得extend里面的哪个值?5 g; e0 S6 P( J) z& l0 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????