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:4 B' g! t ]/ ~0 |3 z; }, s
Name = (WCHAR *) L"Poke";4 _9 @4 r: k1 m! p4 Q0 {
) ]6 Z- x Z- V @
hr = m_pDisp->GetIDsOfNames (+ ~* r7 H. d9 D# k9 _0 J
IID_NULL, // reserved" B" k x" r- _! U! |' }2 l4 h1 x# F. \
&Name, // Array of names to get IDs for2 @. U Z! j0 X( @2 Y8 X8 G& R$ |' T
1, // # of names in the array: r i7 q; y8 F4 \6 q" k0 C6 D9 d, }
LOCALE_SYSTEM_DEFAULT, // System locale ' ?* H$ ]$ I7 w! L &pokeID); // Array of IDs to fill on output- X" {5 u/ Y1 t) N2 G5 Y
. w4 A+ ]" u4 Q9 h. m. J& M if (hr)" V: c& K4 H; I( r
{* \. N: Y7 P' _6 z3 {' V
MessageBox ("Get Poke Unsuccessful"); ) a \9 C7 x9 Q- w9 O: z8 p return; 6 c* J2 y4 n/ \) F }, O# E+ W7 y. \% C
9 X% T# V/ c" K' C
/**************************传递数据给extend**************************************/ + d/ d, b7 J' ~. U" W pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* N9 k9 z0 k- ^' L) |; N+ b
3 g+ t2 Y2 z a( E% Q
valueStr = SysAllocString((WCHAR *) L"1232");# `) Z! J! k, s/ ^" B# c& S
VariantInit(&pokeVariant[0]); 6 w j* a, S) v" b' K pokeVariant[0].vt = VT_BSTR; / g3 Y" d4 T+ B' h0 R2 x$ R pokeVariant[0].bstrVal = valueStr;/ X1 e5 G, t* k) a( ]& c9 C- U u+ K' l
6 M$ d3 y8 A- u/ h1 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 G7 t/ B* k. |6 a7 e
VariantInit(&pokeVariant[1]); + Z3 C( P: B o; `/ n) Z4 B3 C8 c, R; ? pokeVariant[1].vt = VT_BSTR; * n1 R2 U" q) m M0 t) ^ pokeVariant[1].bstrVal = itemStr;* X& K" @+ ^) A8 O& s" }' \
* `" p7 K5 x; M7 l' _( h
topicStr = SysAllocString((WCHAR *) L"system"); 8 Z* M/ D r* c U VariantInit(&pokeVariant[2]); + I U# S! c# ?; e) i
pokeVariant[2].vt = VT_BSTR;. g( r3 Q9 a0 T( A1 Z
pokeVariant[2].bstrVal = topicStr; ' F: k. M \3 W- y, w+ p X* Y# c5 A
// Set the DISPPARAMS structure that holds the variant. # @. O" N- U# l( }+ h% G* _% V+ O4 s( W$ \4 o6 ~
dp.rgvarg = pokeVariant;7 w/ ?! G$ G8 O
dp.cArgs = 3;# X, A1 C* ^/ E8 z/ H- G9 g' y
dp.rgdispidNamedArgs = NULL;! L- w) c1 M# l2 C& K. S4 z
dp.cNamedArgs = 0;/ o R [$ M0 L1 a3 M
7 R7 r* W5 v; R; ]) Q2 q( @( @
// Call IDispatch::Invoke() $ G3 U8 S p! O0 v5 E9 Z; w# ]/ N, |; z. b+ C; J k
hr = m_pDisp->Invoke( 3 k; [# j; W9 b' C! f* r pokeID,8 m% p8 m' x$ @5 P0 M
IID_NULL, ' t0 M5 a, m% c2 t+ M LOCALE_SYSTEM_DEFAULT, b4 f- r' ^8 u \2 m1 o
DISPATCH_METHOD,7 f" O5 b4 O4 R6 \, R4 P4 |
&dp,( @! z+ L/ R8 D9 v
NULL," c0 v' w* _1 A; R
&ei,* f9 K, u* r5 o C0 [
&uiErr);3 U' ?+ Q- x" o! Y$ t! g0 c, M
- {* j; @# w! C9 T SysFreeString(topicStr);' G5 x* [5 ]& ^5 I* s
SysFreeString(itemStr);& `, y" i) L/ d! _1 s& F
SysFreeString(valueStr); * X4 u6 X9 w/ t/ B; g) F" |! j& E9 Y/ ~, ^
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??? 0 U. O. P' M% {$ R9 @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????$ u0 Z' G7 @: ~' E9 X
5 u2 q0 v$ m( k
$ z5 W) {! C8 E. f5 H9 i: Q7 g
2.这是request的程序 0 z# v! d5 q1 v8 u// Request a value from Extend/ |5 y& |$ }- [5 Y+ y5 P! c+ {
// $ v) _/ Z! i; j3 |- ~; V* G: L// Initialize the variant that will hold the BSTR. Set the variant's 8 x4 Z: B/ a5 c. `, f// type flag to indicate the fact that this variant holds a BSTR. Place the% f! r( b+ U4 {2 ], ]" w/ a
// BSTR into the variant structure.% ?+ c# i& L* t, X6 m& {* F- V7 Z
( e T0 T8 z2 s+ i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ u# O. k3 y2 c, n4 z* U+ s3 s; F* D
4 Y% \! _+ S: Q! u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + y$ B4 p8 V5 x: r VariantInit(&requestVariant[0]); 3 t* t2 ^- U5 ?; y
requestVariant[0].vt = VT_BSTR;0 H; m. |! n( I3 {% R
requestVariant[0].bstrVal = itemStr;5 m8 c5 k: M/ j/ T9 k0 C& M; ], }
, G# T- m0 ], m$ b6 V; }% a topicStr = SysAllocString((WCHAR *) L"system"); # q2 T4 L% E! b$ Q# W VariantInit(&requestVariant[1]); 9 X5 Y) _9 w" Q& G8 ^5 V& a3 ~
requestVariant[1].vt = VT_BSTR;$ A1 v+ s6 A! [/ y# P* v/ Z
requestVariant[1].bstrVal = topicStr; 1 P5 ]6 `, U2 q1 n+ j/ O6 J0 I, U* e$ Q# @2 F g8 D; ]
// Set the DISPPARAMS structure that holds the variant." k5 E: s6 M9 v' z7 L
7 Y6 c! i7 G% T- m% Y: P dp2.rgvarg = requestVariant;# X5 O) J+ X3 {! M
dp2.cArgs = 2; 9 C8 e8 j1 a, y$ u$ @' S# T dp2.rgdispidNamedArgs = NULL;& ?0 _( F$ G$ ?' v+ p1 b9 `
dp2.cNamedArgs = 0;1 j. o8 c7 e* k# N- P0 B g/ A
5 Z, M% Z: p+ P; e2 s, u var.vt = VT_EMPTY;) c# X6 L% @9 t/ W# @
0 d' p0 y* V Q
// Call IDispatch::Invoke()0 g' X* W( z+ a& V6 \5 B. [6 S
1 r8 ~3 }( [% d/ } z3 R { hr = m_pDisp->Invoke(7 r% i- q4 D+ o6 s
requestID, 2 X q+ L1 m0 P6 Y$ w1 c: g IID_NULL,: A0 ?8 z( ~$ w$ ^& A4 g# G' ]' G5 U
LOCALE_SYSTEM_DEFAULT, ( g8 T" r$ e! H, o! o a+ c DISPATCH_METHOD, , A( I+ i- w* u S9 c &dp2, & k% H' X9 f* j* Y &var, ( Q' J9 n0 ~$ Q) f6 e- o& X &ei,7 \5 E3 F5 `# V1 H5 K0 L
&uiErr);$ o, h! W* X+ {' }( n- P9 z' q
|: I0 e* O* u w h7 ? SysFreeString(topicStr);1 I2 b4 h; h/ X* t: o! H3 ?1 H
SysFreeString(itemStr); 4 J) v' L6 @$ v% Y, p O) t请问该程序是获得extend里面的哪个值? 6 r9 a$ Z7 S4 j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????