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:0 v# ~9 i0 @9 S4 g
Name = (WCHAR *) L"Poke"; 3 V6 I- a2 x6 W. e* d " W) e. I" h. O hr = m_pDisp->GetIDsOfNames (/ V4 z# F' `' G$ s7 \" F$ J
IID_NULL, // reserved b. h7 ]9 Q2 r2 H' v &Name, // Array of names to get IDs for8 u; n# k5 ]- K W" i
1, // # of names in the array/ m' |# t$ `6 Q
LOCALE_SYSTEM_DEFAULT, // System locale) `' ~+ P/ Z; l; i* d3 S9 ]
&pokeID); // Array of IDs to fill on output6 d V0 U4 k& A
# @9 C% g* @6 } if (hr)6 p p, ^% Q, `& {
{ 4 R: t o. B- T MessageBox ("Get Poke Unsuccessful");0 [7 M6 I2 k: P- o* R
return;/ s% Y" S& p8 t
} * G3 s0 x; `' l% J ~! J- Y' T r% b& @5 F, E
/**************************传递数据给extend**************************************/7 L- a& X# A2 }/ I' ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % F1 g2 d$ z B* ^* Q8 ?5 x- @ * g* S: u& g4 t3 x# w
valueStr = SysAllocString((WCHAR *) L"1232");7 V7 _4 p% i+ D1 u) v) F2 N
VariantInit(&pokeVariant[0]); 3 m1 v& ?' Y8 Z' h
pokeVariant[0].vt = VT_BSTR;: ]1 W$ e8 S' t& S& {" f
pokeVariant[0].bstrVal = valueStr; ( S0 { Q% d% `, [ 7 _# M, T- t; v% L* w" ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 |, i% ^5 x$ P. @" D VariantInit(&pokeVariant[1]); " b0 O; y( F! n6 _& ?7 y
pokeVariant[1].vt = VT_BSTR;3 c3 \9 C+ Q$ d- t$ w1 G0 @
pokeVariant[1].bstrVal = itemStr;) K" r; o' R) W( R
2 s( g7 @! f7 [( y, f1 q( x Q4 C topicStr = SysAllocString((WCHAR *) L"system"); 1 A1 P0 T3 _/ p) ` VariantInit(&pokeVariant[2]); 6 J" F w* ` ^# ^ I2 D pokeVariant[2].vt = VT_BSTR; 0 M; ^. D$ }' q5 W pokeVariant[2].bstrVal = topicStr; ; \! g$ s! v x; A& Y2 M* u& t7 l1 D1 j# U6 }
// Set the DISPPARAMS structure that holds the variant.7 X' O% s- _$ u/ x+ E1 l
# c! O- ~1 z$ Y5 l- P* M* O: D6 F
dp.rgvarg = pokeVariant;% O+ P0 i& l- [
dp.cArgs = 3;* |, }4 Z, [4 ~& p- L1 N
dp.rgdispidNamedArgs = NULL; 9 @1 m: n6 G+ k/ N* `1 l8 ] dp.cNamedArgs = 0;5 T! @" } [2 P2 `% d4 U
! W/ ~" t3 \; L* Q t T( ]3 |/ S
// Call IDispatch::Invoke()1 e+ D, s1 A; |& X5 Y* S
; ?- I& w1 U9 {5 @# T hr = m_pDisp->Invoke( * O1 {& Y! l7 ] pokeID, : ?/ g; C, G+ G+ `) s" B/ n6 U IID_NULL, 5 b# E- m5 W, N& v/ s$ H$ O( w1 Y! m& J LOCALE_SYSTEM_DEFAULT,& a( a3 g( U/ l' |7 V( a# m
DISPATCH_METHOD,9 T! n- N R# Z* k/ k! E
&dp,5 i4 v9 h6 x4 y+ o7 X; Y/ v' Z$ i# H
NULL,+ p) P2 j- `0 H* w3 `* Q
&ei,: }8 ^3 L7 ^, z# s
&uiErr); 0 c9 C! k5 w+ n$ W u. }+ u* V. L1 U$ Q
SysFreeString(topicStr); / b. Q# L5 `7 ^* t SysFreeString(itemStr);$ C1 f/ r' u9 K% ?% U% H* r; C, V
SysFreeString(valueStr); V7 X; l: g5 @% A) x# y" V3 V; @( V7 r% v7 t6 s% Z
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???' G" i0 B: i# | f' 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???? + V" s/ H% @! s( h* ]" ]; u2 {) a! _/ s
2 A" x7 A; l9 a a) H2.这是request的程序8 {) ^( K* r$ r
// Request a value from Extend * G4 t# U3 p: _! M, l//* Q. q2 _7 A$ ?; k9 S3 y
// Initialize the variant that will hold the BSTR. Set the variant's! w/ S, ?1 M$ ~6 _7 n" G7 z
// type flag to indicate the fact that this variant holds a BSTR. Place the " g, ~* c. G: Q- n0 U- J6 P4 M' T// BSTR into the variant structure.- |" h+ _5 Y7 H( J1 q
! D( I7 |$ ~8 s% \
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 ^& T* |7 `+ K2 B) l1 s 3 f$ r: M' r& ^! l* A
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) A' P2 t! u. f, Y+ l VariantInit(&requestVariant[0]); " w: v, _# X) C+ F* x* B
requestVariant[0].vt = VT_BSTR; 4 j0 L. c/ Z2 [0 j# W requestVariant[0].bstrVal = itemStr; 8 n; X: [& j5 Y3 o " h0 P3 |7 W5 G; H7 s6 C* a topicStr = SysAllocString((WCHAR *) L"system");# n# L; b- X' j
VariantInit(&requestVariant[1]); 1 u0 }, y i, `- x3 a
requestVariant[1].vt = VT_BSTR; h2 |$ F8 p. l4 ]4 Q3 r* ]
requestVariant[1].bstrVal = topicStr; 1 W( B2 ~' Q9 c , X9 v1 q7 ]$ E// Set the DISPPARAMS structure that holds the variant.! n0 E5 q4 \' m" H# U' E% I6 r1 k
* r4 l/ f, r$ ^+ C; c5 q dp2.rgvarg = requestVariant;. u% \- V" w* P8 v k! M
dp2.cArgs = 2;& X8 A6 l+ _1 D' I3 A$ P
dp2.rgdispidNamedArgs = NULL; : G" O6 F, Z: p( b$ T, c+ o" r9 | dp2.cNamedArgs = 0; ; r0 {6 g. C" ]; ^0 p 1 q; a8 o2 V } var.vt = VT_EMPTY;5 ~7 g" H# T0 j( m* ]/ {! e
6 r2 t/ e8 l6 O' V/ j// Call IDispatch::Invoke()/ r) d/ E" A y
- }. ?0 Y- v' m0 _5 ` hr = m_pDisp->Invoke( : X9 b. I! M# R) Y2 b; _! j requestID,1 V0 ^) @* |# ^7 H S" g
IID_NULL,& }7 [4 q) e; w# A& C0 M* d
LOCALE_SYSTEM_DEFAULT, 4 L/ J! S4 H: ?! L1 e DISPATCH_METHOD, 3 p U. K4 ?7 k0 @$ T& ^" U &dp2, 3 w9 T6 u& c/ i" h0 P &var,5 Z3 b5 j! x G. w% f5 _4 h
&ei,% c4 U& ~5 R' `8 _
&uiErr); D: `3 M( |+ v/ j Z & I$ p- s1 ?0 t; } SysFreeString(topicStr);: z- T T' ~$ D0 t
SysFreeString(itemStr);) c+ h$ N$ @$ L1 V4 I" z* @
请问该程序是获得extend里面的哪个值? 6 y/ c& u; { S' M* z7 u) [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????