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 u1 z% d. S8 E9 xName = (WCHAR *) L"Poke";: O' _" I: y+ Z5 i+ Z
% P" s( s9 g* V' m9 B N# ` hr = m_pDisp->GetIDsOfNames (2 o5 ^/ l9 k7 o* t3 W
IID_NULL, // reserved 2 _ v9 E7 V0 H &Name, // Array of names to get IDs for# ~9 B, B3 i9 L: c
1, // # of names in the array p) w, F: k& n0 ` LOCALE_SYSTEM_DEFAULT, // System locale ' S' x6 X! V, V3 ]. g/ @1 Z; q &pokeID); // Array of IDs to fill on output4 ^% D0 D& l* G& ?* n9 V
4 s t: Q' C& O* }( y) k# [
if (hr)) o, g/ \3 ^$ V& l1 y
{9 e! v4 F/ r. A: ?- Z4 ^* C
MessageBox ("Get Poke Unsuccessful"); 4 Z* J' `7 D- q& u) B return; ) i) K' h. ?/ j& h+ B8 M0 i, e7 O. i }% t, {5 O$ S8 ?, @7 ^
% q4 K) Y3 D x$ M% \9 q
/**************************传递数据给extend**************************************/ + d. z7 }1 \7 }1 L- @' n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 J" I' u6 ^# X3 C7 [' a" `% ?$ E , i3 b W2 y3 q7 \% ^ valueStr = SysAllocString((WCHAR *) L"1232");' K7 x) @: F- q8 p6 C- ?
VariantInit(&pokeVariant[0]); * ]( Z: s) o6 y7 ~% o
pokeVariant[0].vt = VT_BSTR; 8 o3 ]% A& e% Y1 m: E pokeVariant[0].bstrVal = valueStr;8 b) i6 K/ P+ u! H$ L7 g
) z+ p9 s6 m$ V' e" j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- c# q: c2 T+ X* |" W4 M3 ^+ i
VariantInit(&pokeVariant[1]); & q7 g# _/ a" Y+ |/ |5 v! ?
pokeVariant[1].vt = VT_BSTR; : l% x P9 y& c. M) R pokeVariant[1].bstrVal = itemStr;- `% M- L4 u- s+ {! n
& \, R# f) P5 e/ |5 O2 Y topicStr = SysAllocString((WCHAR *) L"system"); - G* ^. v( D. r, e% ~& G3 A VariantInit(&pokeVariant[2]); , l. @/ s# J% g) m$ {% e# W2 D
pokeVariant[2].vt = VT_BSTR;1 v4 t% P" Q1 K& o1 q1 G, J
pokeVariant[2].bstrVal = topicStr; ; z$ h9 w U* I7 X : z, y1 k6 W& _4 X) _// Set the DISPPARAMS structure that holds the variant. + m4 W! C9 i/ c+ J. x% y) e0 f1 q% D- T! M. c6 U
dp.rgvarg = pokeVariant;+ q7 K9 Z% { S! o# t
dp.cArgs = 3;* @$ d0 r* c5 H
dp.rgdispidNamedArgs = NULL; T, f4 n: s' b dp.cNamedArgs = 0;+ y. z% Q& d8 r9 P
$ O' R2 b' f3 _4 Q6 V3 w
// Call IDispatch::Invoke() , w+ L5 v: M, c ! b0 H6 w. I2 e, l/ U hr = m_pDisp->Invoke(( r4 _3 _5 r/ Q$ b+ B
pokeID, 4 r2 V/ S( y* c' n5 R, }& Z IID_NULL, % Y, e4 |3 V* ?: o LOCALE_SYSTEM_DEFAULT, , D/ i: s5 |8 G' d$ [2 @ DISPATCH_METHOD, # b: C5 ~, ~$ b &dp,! p+ R' C( u- s- k' H: x4 U6 u! ]
NULL,; n+ }: h! b- n: a2 c
&ei, * M7 H y) ~ q" z4 C4 t+ U; }/ _. | &uiErr);; ]; f7 o4 H0 I- r0 Y2 Y$ [
7 @* w1 y. p' o. f6 \* g" M. E8 p* q
SysFreeString(topicStr);. E( s1 P2 G) a& | R ^" o6 N
SysFreeString(itemStr);: x x$ U9 c. f# b& v. p8 g5 Z
SysFreeString(valueStr);+ v" b, ~+ c% r$ V+ K* J/ a
; R5 `% z" ^( R$ G9 P- ~+ f* U
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???, |" S# I" a S% V% l$ j) W
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???? ' z: A6 k0 K7 {) H( U6 i - K# m0 A6 S4 v ; \4 A/ i$ r5 r; S* N4 B! W2.这是request的程序 9 b/ S- s% P p" m' o// Request a value from Extend " o' K7 P: z2 q% a7 B1 H// * a& @$ f( }2 e// Initialize the variant that will hold the BSTR. Set the variant's# i+ m" o6 x/ Z; O9 j1 F
// type flag to indicate the fact that this variant holds a BSTR. Place the. _3 P2 {" E. i: H: a1 m) m' U
// BSTR into the variant structure.( m- v& @ ?2 p& G. C
9 L2 }4 i* f- W$ a
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* N% d' m" Y$ j% p# {2 S; e* J; G
) u6 B% m3 a- i' k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 T( E* w# n/ @( L1 I/ ^/ s1 U0 I VariantInit(&requestVariant[0]); $ J5 o* s7 X# @ `( d
requestVariant[0].vt = VT_BSTR; " Q3 q4 a5 O. z! ` requestVariant[0].bstrVal = itemStr; 7 q# Z$ T, A$ V+ G, [. r( @) ~7 F" ?6 O, ?3 R& ?
topicStr = SysAllocString((WCHAR *) L"system");5 U& V% U+ ~1 K8 [
VariantInit(&requestVariant[1]); ) S G u8 ]% Z6 _9 [
requestVariant[1].vt = VT_BSTR; ( i( n. X! w: L2 h3 M" X5 i$ b requestVariant[1].bstrVal = topicStr;) Z2 g- i) M, n# }; ]6 L2 k
) m+ j4 y" [* b/ e* I
// Set the DISPPARAMS structure that holds the variant. 0 U* ?, p! [1 w% {; Y; u2 a' L# y2 {! [3 b
dp2.rgvarg = requestVariant; 7 U* @! N3 E0 j dp2.cArgs = 2; ! B+ b8 {% U( d1 t* h+ O! x; T# c- c dp2.rgdispidNamedArgs = NULL;, J7 Q3 A* G+ l
dp2.cNamedArgs = 0; ' D! h1 ?! P! R# i; T 4 U) l- [- b" \2 T: N9 o9 U var.vt = VT_EMPTY;9 v! g& s. I$ g6 x+ o0 T8 Q
8 g- z) x4 A' m. E2 _// Call IDispatch::Invoke() 8 S1 r; I. s5 q! l8 R" W- p + ~" D6 ]: V% y; a9 }2 E" R% V4 V! c hr = m_pDisp->Invoke(. K9 X* C4 `. }' v4 ]6 ~
requestID, # _* m' j7 a$ p" f2 b IID_NULL, 2 R9 L6 {: G3 \ h! p$ ~& Y7 W LOCALE_SYSTEM_DEFAULT, % z% L& Z5 x5 [3 A/ [ DISPATCH_METHOD," |, O ~8 [ g4 d3 ~
&dp2,4 u/ Y& ^$ V: r. o" d
&var, `( ?- K, h6 e8 Y
&ei, ) K. A5 B( i/ [7 Z) X+ a/ K5 ]( P &uiErr);: k7 }. E' p+ w/ a5 w3 r9 p5 Q
; U# m1 b7 K, D SysFreeString(topicStr); # [9 k5 j$ W4 L9 b z: w SysFreeString(itemStr); ) `/ |* o7 a. Y& O. ]5 o/ d! Z( B8 }请问该程序是获得extend里面的哪个值?/ x0 T3 o! g. O4 M7 d: s
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????