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:) X$ B0 H _& _3 K; S7 q
Name = (WCHAR *) L"Poke"; S: X* f2 Q7 [6 S1 g8 c
2 R- \% U! u' O; o2 q hr = m_pDisp->GetIDsOfNames ( 7 k, o* { X6 T) ?" }9 X% G IID_NULL, // reserved0 ?5 m0 I# Z8 m) U6 ~
&Name, // Array of names to get IDs for / k) b! @* {* k" o 1, // # of names in the array1 B4 y5 `" y" E& r9 }. E. R
LOCALE_SYSTEM_DEFAULT, // System locale: p: L5 J& I$ M
&pokeID); // Array of IDs to fill on output , H) k: X6 U: Y, t1 W m7 k" O$ m 5 b/ E( b1 m1 P4 C: R if (hr) 6 X* Y( x# q+ O {2 Y8 i1 j. I, h N" Z: i+ ~5 y4 N
MessageBox ("Get Poke Unsuccessful"); ' P8 K0 |: o/ `" i) n- D. ] n; z return; : s% G U" r9 d' I/ H8 v: G }9 g0 w: U# Q+ O* |2 N8 i! v- D4 ?
0 y/ Q+ j+ W, E/**************************传递数据给extend**************************************/ ; h w" d1 q0 V \# C, \3 F( w1 g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 M* y: Q6 j) ~' R9 H. } 5 }) p, z/ V1 A2 \- @- W( R
valueStr = SysAllocString((WCHAR *) L"1232"); ; A5 q, B, {7 A* I VariantInit(&pokeVariant[0]); - S5 a$ i6 Y& ^2 {' c2 s pokeVariant[0].vt = VT_BSTR;7 V3 D, [* K& j5 K
pokeVariant[0].bstrVal = valueStr; 7 s' `4 ]5 `( S! q . g$ D1 X( |- G6 G$ i' g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# a, o n4 w& P7 b/ _( M. _+ q
VariantInit(&pokeVariant[1]); : |5 B2 [" F3 t; Q
pokeVariant[1].vt = VT_BSTR; / m g$ L9 c( k. y% d+ w& ^* u4 g pokeVariant[1].bstrVal = itemStr; 3 S' u, M/ g4 X 3 K. E" l; h$ S4 L1 r6 Z0 V topicStr = SysAllocString((WCHAR *) L"system");+ U; h/ h- ?2 _, d
VariantInit(&pokeVariant[2]); ' E0 L& I7 H) ^ z* S* P; G$ A
pokeVariant[2].vt = VT_BSTR;$ i3 `3 a( {. A+ ]- p/ {
pokeVariant[2].bstrVal = topicStr;- {: s D) c- J9 `0 f, S- i
8 k, j* ?3 E8 k8 c1 I% c// Set the DISPPARAMS structure that holds the variant.- n5 j& ]2 b' P6 z6 z. \
/ @- K5 @ N7 A3 u* s
dp.rgvarg = pokeVariant;$ u/ g. ^2 G% O# R! k
dp.cArgs = 3; : T- {" D% ? q5 w+ Q/ u dp.rgdispidNamedArgs = NULL; 3 f4 V! B4 n7 a5 Q dp.cNamedArgs = 0; 7 H7 B7 m4 P$ L$ M9 w* e0 y/ X: Z9 ?. A" D6 s1 u+ J" {! V9 w% A; d9 O
// Call IDispatch::Invoke() ) B0 C# ^, `5 T, D' Q- y3 |" a# h! U- `
hr = m_pDisp->Invoke(% P, x9 e3 x, ]4 ~' k
pokeID,8 O8 f. c8 F6 W2 X) D) Z* N
IID_NULL, 5 }1 n5 Z* q; u- y LOCALE_SYSTEM_DEFAULT, $ y( i( m# @$ Q0 N$ C DISPATCH_METHOD, * V! k; m9 x. c( d; j: k r &dp, 2 ?5 q7 E& E" X. q5 W4 v6 V3 s6 W NULL,2 U0 G* W+ @0 z3 f" X; w- u
&ei,* e0 w1 i) M; c% ^
&uiErr); / H( e$ ]/ [( F% t/ ~! C) ~% V& s& T: U6 W( G q$ m
SysFreeString(topicStr);, s6 p0 O: t2 z; S
SysFreeString(itemStr);3 }3 r3 c6 s1 I& Q( ~. v' H5 p
SysFreeString(valueStr);3 v$ L& |4 e% k( c9 N
2 J% @# S9 g( n" n; V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??? ) @8 _/ E0 A5 [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???? $ @2 W. N5 a, o7 `6 G5 ]: x& Y8 p1 G1 w, V5 f9 N
( W- D7 \# `2 T$ h! P; A, }) o
2.这是request的程序 : X& [( b$ u# _4 C5 J" w// Request a value from Extend, H$ W0 n( \ z8 S/ d
//+ w; Y7 a. k7 j* T( k( y
// Initialize the variant that will hold the BSTR. Set the variant's 4 m7 p& g- I3 H// type flag to indicate the fact that this variant holds a BSTR. Place the 7 P# i. i- {7 q+ F9 J2 q( }7 E// BSTR into the variant structure. ( u0 u8 M) t, d* E) ~3 i& V! q0 H6 t+ B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 v, J& T2 ]3 |) d( ^* S
+ Y3 u- P, }5 w, `* x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ]' |8 w U2 Q8 _
VariantInit(&requestVariant[0]); * D+ |% g4 _3 k' m# I( p6 H- ]9 j requestVariant[0].vt = VT_BSTR; / G/ Y" E8 j2 v G requestVariant[0].bstrVal = itemStr; " c( I6 n6 d6 S+ k4 S+ f * m- t- ~, \) s( O* N& S+ ~$ t: x topicStr = SysAllocString((WCHAR *) L"system");2 l7 y" S( K4 V. g6 P8 V
VariantInit(&requestVariant[1]); D3 I5 S3 |" J0 T+ j! O
requestVariant[1].vt = VT_BSTR;# {" r4 r( M6 Q/ |& N4 E9 r
requestVariant[1].bstrVal = topicStr; 6 W0 }; q* h; A3 `; u ; L* l+ j3 z: K; Z; D6 P' C& u1 J' V// Set the DISPPARAMS structure that holds the variant. Z- T6 T' @. K& m* k ?% Z 7 v! f" V* }, \# o. \, O dp2.rgvarg = requestVariant; . \9 R% ~% `7 T d& c/ I+ i4 a/ z dp2.cArgs = 2; : l2 U$ Z1 m) E; p5 M% ~/ M! J0 P dp2.rgdispidNamedArgs = NULL; 6 R& V6 ^* G1 W: k6 h dp2.cNamedArgs = 0; / K) ]7 P( N1 @+ ]% F7 \& K* i, s2 C I, e* r
var.vt = VT_EMPTY; " l' x4 |2 L# |6 t" A0 \6 z+ o5 i" K. k. X
// Call IDispatch::Invoke()% f9 U3 B2 u; C
' J+ E' }8 F) X2 l) b* i6 H( x hr = m_pDisp->Invoke( # C& O0 a. r$ p- |: S `4 ^ requestID, ! I+ p7 P1 S o2 a3 ? IID_NULL," y Y0 m0 _/ A0 Z* g
LOCALE_SYSTEM_DEFAULT,8 c6 N5 T8 U/ f, b
DISPATCH_METHOD,, k8 E& v" o, L3 Y3 A
&dp2,- X6 n0 @* {7 q5 j% ^
&var, p h1 g' `% t T3 J3 Z, r &ei,8 v+ c q7 ^( W6 P8 I/ c, k4 H' R, L
&uiErr); 3 {# `3 B! A" q" l$ j/ u( f2 U' p; s |9 S( O6 ~7 \
SysFreeString(topicStr); , B. |* ^. \* o" y; q& J SysFreeString(itemStr);9 A! A' q- M D- u
请问该程序是获得extend里面的哪个值? , Q, \' s' ~5 ^, T+ [ t) V$ 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????