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:9 U4 i1 o& K- j) L/ F
Name = (WCHAR *) L"Poke"; 6 _) O p: S/ N- G" k1 d 5 C2 \ K0 M) x& ?9 j% Q$ ]1 f
hr = m_pDisp->GetIDsOfNames (( h7 o; A/ u6 ]: o% `1 b( k
IID_NULL, // reserved5 \/ ~/ V2 f, c2 v: \ `: B8 B
&Name, // Array of names to get IDs for# E' f' i+ F& D) z
1, // # of names in the array* b% I+ M4 T: v0 e% A8 r' K
LOCALE_SYSTEM_DEFAULT, // System locale' I1 ~% E) c$ O( r/ J
&pokeID); // Array of IDs to fill on output3 y& r$ ?8 w6 I& n( V
' H( c6 T7 J( \4 {3 H# Z' f5 k `- ] if (hr)& f; I: r* o, `* y* i; ^, |
{1 C G& B& e' K8 H
MessageBox ("Get Poke Unsuccessful"); 9 \1 k, _# L' c) k& Y return;. v" f) A" g) r$ E
}/ d) ?. z; g" n3 k
3 S1 V/ ^7 l, s, r! J b/ b/**************************传递数据给extend**************************************/ @1 J1 [1 A7 R% V+ a K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - O9 `% k0 r! ?) B4 ? 4 u# a5 | `5 d) {0 K
valueStr = SysAllocString((WCHAR *) L"1232"); - V5 Z0 X7 t9 ^0 b" i% J VariantInit(&pokeVariant[0]); 8 I1 Y) L2 b7 k pokeVariant[0].vt = VT_BSTR; * Q6 J6 b. |9 g+ o, u3 X& n5 h pokeVariant[0].bstrVal = valueStr; 1 } W; F4 _: X: S& A. A) y1 _# i: x) d: N2 k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * }1 ]- w, I4 [4 T$ K VariantInit(&pokeVariant[1]); 0 `& `" H# x6 S7 @3 x3 d8 q3 L pokeVariant[1].vt = VT_BSTR; R. p% p8 b2 q D4 z# z pokeVariant[1].bstrVal = itemStr;; F- v$ G+ N! Q$ b" C3 ?# Z
8 u# q* Z2 R1 s$ E: o" d% F
topicStr = SysAllocString((WCHAR *) L"system"); , ~% B) {6 T% z, V, z1 Q VariantInit(&pokeVariant[2]); . z" b- q; h9 X0 N8 f0 w- a, b
pokeVariant[2].vt = VT_BSTR;! A4 |* u$ I4 G" @5 H& r- N) S& v
pokeVariant[2].bstrVal = topicStr; ) |* y) w! W* ~5 n; q, H ! Z! C1 _0 u, P. ^ G& V1 n// Set the DISPPARAMS structure that holds the variant. # k; E/ B8 n4 A! p# J2 S' `! y X4 X" Q( ` r+ Q9 B, F
dp.rgvarg = pokeVariant;: A- _3 A% X* W! q
dp.cArgs = 3;5 G2 {# G3 n( `& o
dp.rgdispidNamedArgs = NULL; & \* l4 n$ q, f) v dp.cNamedArgs = 0; / s- R. K9 ~0 g6 q % w% b$ |7 g1 f* ]// Call IDispatch::Invoke()2 \- n3 b+ N2 Z" s
& q) s9 R6 U2 o, D* P
hr = m_pDisp->Invoke(; t, n/ J# g2 H0 \
pokeID,1 V$ M( L( H" Q# N& n) T
IID_NULL, - {$ z4 C, r) ?/ E e LOCALE_SYSTEM_DEFAULT, ; l; t( e1 W3 \( ^8 o: y DISPATCH_METHOD, ; ^% D; x1 V, {* f# b! }$ S &dp,, ]% B9 \8 r5 _# O
NULL, 8 g7 M- Z: j0 Y &ei, 7 |9 c' D/ x4 B% D6 C &uiErr); 1 Z9 y% J8 B+ s( H# G % W4 [1 c! x0 ^# w: i2 L SysFreeString(topicStr); 6 v# T8 g7 e2 Z# s SysFreeString(itemStr);+ u+ M3 {; N4 Y- f/ ~( A3 K7 v
SysFreeString(valueStr);3 |6 @+ ^! i- \4 C/ o6 i7 |' u
4 H; T6 T5 ~$ v# H0 t5 V 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??? |9 D( A$ @/ d$ z4 b8 X9 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: }0 j; X. } $ ^5 v m: g6 \3 A6 J1 m3 r+ P$ j& N3 ~; k6 M4 H
2.这是request的程序 ! ?' ?- `' e+ L7 _// Request a value from Extend ( Z0 g" Z( o8 G& @//, V0 I' x7 L" q4 a
// Initialize the variant that will hold the BSTR. Set the variant's' i$ T9 o; c |# |9 p! K! y! a$ w2 O0 ~
// type flag to indicate the fact that this variant holds a BSTR. Place the ; F( ?1 n* N9 K4 T" |4 B// BSTR into the variant structure.' r" v% Z9 z/ ^4 N/ D5 ^: |* T
( m# N+ k- j" Z+ F7 g" R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% {& F1 o j3 M' v
# l1 y5 g2 }% I# U* {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & [& O `( d" o/ N" a6 R! A5 A VariantInit(&requestVariant[0]); 7 ~0 f ^. \ H( v! M
requestVariant[0].vt = VT_BSTR;5 D" a8 x+ z/ y! T8 E
requestVariant[0].bstrVal = itemStr; ) f( j! O; o; e + V1 b- f I G' E8 | topicStr = SysAllocString((WCHAR *) L"system");) V8 ^$ }8 F$ H3 P; s: k
VariantInit(&requestVariant[1]); * w' b, G) E6 G/ U! n requestVariant[1].vt = VT_BSTR; * l+ j" k& i! _! V7 O) { requestVariant[1].bstrVal = topicStr; : C- o' v) Y7 { \" N% G4 l, E0 f% l$ Q# ]9 `
// Set the DISPPARAMS structure that holds the variant. a( r) V6 B, G0 x [& q
, R. o; E$ ]" x
dp2.rgvarg = requestVariant; i; b, ^( l2 W dp2.cArgs = 2; 0 }+ r1 ~& E. F; K! _+ ?# D dp2.rgdispidNamedArgs = NULL;5 u# M9 v% }: b' z
dp2.cNamedArgs = 0;- v# |' W7 c/ M0 U5 u$ N* A
" _2 m4 m4 A8 n7 Z) g7 c/ w0 p
var.vt = VT_EMPTY;& Q) Q$ c( @, F$ C' \6 `
8 J5 |" u9 \9 ?- W1 @
// Call IDispatch::Invoke(), z% e9 C3 k/ j7 O; B
' |3 ~ J% L* ~0 ?0 }$ N0 q; ?
hr = m_pDisp->Invoke( : Z; x! E$ O! k) ]! i/ o1 X0 H requestID, & @+ K/ ], g1 ?+ F3 \ IID_NULL,; s4 u, P e0 y) [- h9 j0 ^; n
LOCALE_SYSTEM_DEFAULT, 2 _. H- o+ p2 A! z) K2 J DISPATCH_METHOD, * t* R, T$ d! n/ z" z4 l! O &dp2,3 r0 }, I( d8 G" E' C2 h
&var, 7 T. `4 S6 T8 T &ei, z2 N5 E# v: z6 b &uiErr); ( k3 ?; w7 i8 A: ~3 C! q' `" H . T/ Y) y4 C( b* D; u SysFreeString(topicStr); 7 U% x5 k: s# l3 d" A2 c" o SysFreeString(itemStr);! M# E- ?& Y/ k, {
请问该程序是获得extend里面的哪个值?- O0 O% v y* `. F( H/ y
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????