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; N1 a9 x9 u2 V
Name = (WCHAR *) L"Poke";) I* U. k& O( G+ r9 \# Y
) g0 K) y% V. K! x hr = m_pDisp->GetIDsOfNames (7 P" {2 q& p; H, A
IID_NULL, // reserved2 P1 ?, t) A0 K3 O
&Name, // Array of names to get IDs for- k, `2 c* F, E
1, // # of names in the array , n9 u$ T1 L0 V2 x LOCALE_SYSTEM_DEFAULT, // System locale & n7 F/ n* n4 d8 @ &pokeID); // Array of IDs to fill on output, d4 L1 A; }: j+ \0 v. ]. B
+ W1 A( S ^& c; t if (hr) 0 I Y" O& } c' Y {9 x R5 X3 n/ ^0 U
MessageBox ("Get Poke Unsuccessful");! N+ `: X# |/ I1 x+ F; ?" C5 |
return;: q- B2 C' B% x! H) p& P
}% b; n& g, P- t. y% N
2 C8 D% m8 m# v0 s1 Q/**************************传递数据给extend**************************************/ / k3 t+ H7 F& J: u5 U0 Y& D: @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' [& F9 M( u4 a3 p% s! T , @ t& f7 z* N! F3 f* T
valueStr = SysAllocString((WCHAR *) L"1232"); * p8 A6 Z1 @ [8 c. l- O VariantInit(&pokeVariant[0]); 4 ~ q! W+ _* ?: a
pokeVariant[0].vt = VT_BSTR;% m( X) A( W0 l- i3 B
pokeVariant[0].bstrVal = valueStr; 7 C% s: G) } g; s4 M8 o' a- L& r4 K# }4 ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / h8 }" _6 X. S" v VariantInit(&pokeVariant[1]); . _8 G! S9 w I& Q pokeVariant[1].vt = VT_BSTR;" K1 ?$ a( n4 R# Y% W; W( p
pokeVariant[1].bstrVal = itemStr; + W+ ~+ ]( S' j$ w3 Z0 O0 R$ V & |7 Z0 D3 t- X" m topicStr = SysAllocString((WCHAR *) L"system"); ' z( L: F5 e2 N) `1 u/ B VariantInit(&pokeVariant[2]); * d7 e! q2 u8 [! J( x( t1 m5 ? pokeVariant[2].vt = VT_BSTR;' n1 a# s: {" F$ T. T8 ?. m, A
pokeVariant[2].bstrVal = topicStr; $ k; u# i( O3 l% T g- W- ?% h( x Z' A$ W ]7 j
// Set the DISPPARAMS structure that holds the variant.5 L1 O# A+ p% p/ Q0 o3 y% c
% p6 ], }; \3 K0 v& H) S& D
dp.rgvarg = pokeVariant; n4 o- C% U* R dp.cArgs = 3; ! {, N, S( C% k! R" {& E' k dp.rgdispidNamedArgs = NULL; + n J$ m8 S* S( p% x dp.cNamedArgs = 0;9 G6 V1 H, g/ _2 _1 A
/ t7 v. }( |6 j+ U. `// Call IDispatch::Invoke(). F% K/ R0 k# \% r
" [6 |+ a/ R& q- X hr = m_pDisp->Invoke(/ s6 d% x. t0 w5 O# R
pokeID,6 O/ l! Y4 D( D: z
IID_NULL,7 |( O5 ]/ K5 x
LOCALE_SYSTEM_DEFAULT," G* `5 I5 ~; t3 @, w6 P6 u) r, [
DISPATCH_METHOD, + S8 y1 `6 z+ U+ k6 ~3 V5 x9 T &dp, 1 e0 N/ T! d- o' j6 a NULL,) a+ S" B: X: _% `
&ei, ; w3 S! F( m. G/ ^( P: n* i &uiErr); * l3 r7 Z ]; k4 h; g) t + F& {- T! Z% h/ A. E SysFreeString(topicStr); " m5 a# @/ F0 q8 a5 a! _7 z9 W SysFreeString(itemStr); 2 \% V0 Z! E( k# f( { SysFreeString(valueStr); - P1 t1 r" w: z 1 f4 Y9 X# f; p+ o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？？？ & l' i, C4 k' Z6 z* ~5 r v, T0 Q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？？？？ 8 e* n: W. g& p9 W/ ^6 j" P) u' r: _8 @# x
) r1 a9 v9 n; ~: B( t2.这是request的程序 , |% Z! R, R4 [7 `4 N3 s// Request a value from Extend , u5 ?( ?/ Z! y- h2 D// ) t1 L' l$ c- j5 @+ U* [// Initialize the variant that will hold the BSTR. Set the variant's/ k/ n1 t( n, X5 }: X
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 }& s* ^; }1 z j// BSTR into the variant structure.3 C( e* P1 N- O, X% {$ C, C! z
( d( g& c9 `4 B8 c: \
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. h9 z" O- f' ?5 }* W/ L
9 Z1 L6 K( H$ {/ C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 W5 D# ^ Z" w$ v) F) ~ VariantInit(&requestVariant[0]); ( H/ n; v: e9 c0 v2 n/ s6 \
requestVariant[0].vt = VT_BSTR; . W" i# D' D* c& E3 P. j' T* M requestVariant[0].bstrVal = itemStr;4 P$ O3 W& g- h1 A/ n
/ W; s; p1 P6 D/ @, @ |1 V
topicStr = SysAllocString((WCHAR *) L"system");% r9 C+ N. H- O2 _" @3 `
VariantInit(&requestVariant[1]); + G& D. W2 {/ J7 d0 g9 T6 T2 i4 a requestVariant[1].vt = VT_BSTR; 9 F" V7 {+ X+ ? | requestVariant[1].bstrVal = topicStr; ! t$ L/ I! S; m/ m( N7 Y7 ^& S. S1 V" q$ J2 {
// Set the DISPPARAMS structure that holds the variant. 4 z" j' T6 S* X0 ]0 d* f 7 @5 D& f6 G' K; O# ` dp2.rgvarg = requestVariant; ! s% E! b0 U- G1 K dp2.cArgs = 2; % p& k' @4 Q8 y$ J dp2.rgdispidNamedArgs = NULL;: z2 @- S+ y+ b
dp2.cNamedArgs = 0; 3 E8 g/ [9 h$ @6 n9 V: ^/ f; n/ S. f o* O. \
var.vt = VT_EMPTY; ' Z: y5 D4 l) D2 |% ?. t 4 J* \1 e; T( J0 ~' W! C1 n// Call IDispatch::Invoke(), M; V8 M7 q" U+ C0 e! W* W0 [
g/ A$ r# S. s3 M4 z hr = m_pDisp->Invoke(2 f0 W, F: f) r
requestID, 7 b; V4 o4 K4 B: L6 m$ {0 e% D IID_NULL, 2 C8 B- a" S; p- W s( I LOCALE_SYSTEM_DEFAULT,! X& J4 ?) x; q/ V
DISPATCH_METHOD,0 V4 c4 U. ]& j _
&dp2, " u8 G" ]" P0 I7 C &var,1 ^. `) x! j$ S* p) o
&ei,! E8 P+ l: f- p
&uiErr);" B$ `: ^- H: X. A6 S0 m2 K: c. p$ n
发表于 2008-11-25 19:37:03
