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:+ f- }! d7 G$ K9 t, v) J
Name = (WCHAR *) L"Poke"; . ~# E: d. v* S2 a" [ " ~7 A1 p* ^& ?! m5 J5 G( O
hr = m_pDisp->GetIDsOfNames (0 Y; H3 a9 b6 X" A1 e8 z
IID_NULL, // reserved5 _5 A! b4 S4 G/ z& z
&Name, // Array of names to get IDs for 0 C! f0 a m5 X1 m* b 1, // # of names in the array 7 d9 l- ^! u$ V% X/ E LOCALE_SYSTEM_DEFAULT, // System locale- y# {3 |) X5 }( `$ s$ `
&pokeID); // Array of IDs to fill on output5 t0 v% a) j# N! x2 F
: j* G8 D5 |1 n6 ^ if (hr) ( N. V/ w' m; E/ U9 Q5 _ { ' b5 @8 i- b! o MessageBox ("Get Poke Unsuccessful"); ! g G$ [" P- T, a) E3 T, U return;2 s1 n& I! r Q6 J6 h
} 3 O+ } \, ^& [0 S6 J) t3 k0 U B ! K8 D/ s& r9 ?' l/**************************传递数据给extend**************************************/# T3 K, c# D* h$ {! ~: s8 y" u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % v" a7 \5 p6 @; _" Q0 `+ R 6 ]/ |# v x) \/ `7 B. ^. C
valueStr = SysAllocString((WCHAR *) L"1232"); n8 x$ F1 r! u" ^9 V VariantInit(&pokeVariant[0]); % k) e2 a6 c3 o
pokeVariant[0].vt = VT_BSTR;' R7 j+ b; o/ s- c
pokeVariant[0].bstrVal = valueStr; x' h1 D5 a% n7 Q6 b: w: X
) O) o4 S$ Y4 ~: ]/ `) ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: e: _% e% {5 F
VariantInit(&pokeVariant[1]); ( l4 y( f+ N" @# O! e p
pokeVariant[1].vt = VT_BSTR; 8 n3 l, Z2 x8 b pokeVariant[1].bstrVal = itemStr; ) }9 J) F. b9 m% q( ]% u2 h0 N2 O7 m2 g8 a8 @: S
topicStr = SysAllocString((WCHAR *) L"system");; k7 \4 T) ?) i( } f( ^# g
VariantInit(&pokeVariant[2]); # o. ]2 }- y; r T5 ~, Q pokeVariant[2].vt = VT_BSTR;8 X$ g% N @0 s% N4 |' g, m
pokeVariant[2].bstrVal = topicStr; 9 J0 R. h2 [- a. ]+ { - y# R2 x. F% t- J; u// Set the DISPPARAMS structure that holds the variant.- o' D* g4 a( N v
) W/ C( }3 H0 d5 g/ K! w dp.rgvarg = pokeVariant;- S' b$ }, W1 `, d
dp.cArgs = 3; ) V( G9 u5 W5 W3 S$ n2 k dp.rgdispidNamedArgs = NULL; 4 i w0 ?+ y+ v0 m3 J, G. `" \3 L dp.cNamedArgs = 0; . ~% ?7 c2 N: }0 ^1 O( z) b! U, B$ v1 u* H- A) ~! f8 Q
// Call IDispatch::Invoke()& o9 i# l. g- l2 z, X
4 `5 w2 a# d4 d0 r, [& E! Y" n, i hr = m_pDisp->Invoke(9 m7 S! U7 ?" |" Z# @6 q& j: m' B
pokeID, ; c: z( U7 t1 H$ o2 Q8 J6 U- ` IID_NULL,! n" S) D; o2 j' ~) J' h! r2 M1 K
LOCALE_SYSTEM_DEFAULT,' V7 w4 \) z' R5 F5 m( h1 p
DISPATCH_METHOD, 4 M$ l/ u3 B+ [; v( F &dp,, U4 _& G( o! Y5 @7 m1 T& R" W
NULL, % \1 w6 p0 }, {$ {% { F9 y &ei,/ A1 x9 U, h' g I
&uiErr);# ^8 ?7 f( `: M; O
% Y! L# b) l* L+ ~+ |' r* w SysFreeString(topicStr);% t3 V! R$ ]4 F
SysFreeString(itemStr);) O8 h: D F+ d' \2 @( @
SysFreeString(valueStr); 2 g: D5 k8 @2 J' _& P1 Z& ^& m5 m$ D O% [6 \- I3 W; m; A6 c( c+ L
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??? 4 h! S$ Q( D% R. i; j- F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; }) b O! f- }
# ?2 _* `: D* s' H' H
3 g! o* a* t0 ]4 n3 c2.这是request的程序 9 f" Y' u1 O8 b E! R// Request a value from Extend% K2 K" _* d% _0 @
//: j7 m, b. z( W% D$ Q' T
// Initialize the variant that will hold the BSTR. Set the variant's 4 `- W$ e0 u" \4 ~0 y// type flag to indicate the fact that this variant holds a BSTR. Place the 8 _7 x& `) V- w$ {' j( _; f// BSTR into the variant structure.3 `- r" d5 I& U) l
2 G4 M$ e9 y& d: o) r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " ?3 C Y5 d* V7 f8 \ + i( O) D8 b1 n, D T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 S) v" s1 D% Q2 o" B$ C7 F/ I
VariantInit(&requestVariant[0]); * ~4 Q; w4 D) ?3 j6 A% }
requestVariant[0].vt = VT_BSTR; ; S- C1 g1 o: c3 b( `9 j8 @; j requestVariant[0].bstrVal = itemStr;- v, F. M) Y0 e0 q+ V8 g9 X! h
6 p% e+ U F S# X) c+ v& s topicStr = SysAllocString((WCHAR *) L"system"); r* h& x* {# ]2 h, O* n% t+ Y
VariantInit(&requestVariant[1]); 7 h7 p- n7 N% N3 R
requestVariant[1].vt = VT_BSTR; " b7 @3 ~8 c: m3 l5 T7 y. K requestVariant[1].bstrVal = topicStr; 4 t4 K- \; b$ L) D# N& a& B; x6 T7 p! @
// Set the DISPPARAMS structure that holds the variant.9 R2 c& v8 a$ {) O& K# c
/ `: k" Y( d- | d* n' ^ dp2.rgvarg = requestVariant;. E" }% M1 f1 U1 O+ V3 c
dp2.cArgs = 2;% f- |* z- G, V# {" v
dp2.rgdispidNamedArgs = NULL;* r* _0 y, B/ {3 E; v0 c
dp2.cNamedArgs = 0;% A z9 X" k6 y- O( Z; F4 I- V' X
% M" o. s2 {' [. |0 x var.vt = VT_EMPTY; % ~ b. n. i9 a8 Y4 W6 F) o5 }' O9 |' o$ t) `* B
// Call IDispatch::Invoke()! v6 f Q7 g+ x( y
. c/ M5 o) s0 C5 |+ ^- u& d7 o' r( M
hr = m_pDisp->Invoke(9 ]- ^* z1 ~& G+ G
requestID, " y, R6 G1 B* W5 m' U, t2 H IID_NULL,( v6 |$ l) I0 `; R3 M3 E$ p
LOCALE_SYSTEM_DEFAULT,- A- ~. n* k" U( \* {5 t+ I+ l$ y
DISPATCH_METHOD, & c0 ~: L( N8 K &dp2,% H; g$ p0 i' Q) X4 B
&var,' m. k/ ^, B( N$ E
&ei,1 F$ T: S+ E" [ c/ o3 p+ ^
&uiErr);! l$ g! K! z: b7 B7 e; ?" z- s
@: T1 x. `6 @' R
SysFreeString(topicStr); 2 ^# y5 I9 E7 r+ r SysFreeString(itemStr); 8 O0 n8 I% w7 x+ w* W+ }7 x+ H1 l! q2 ]请问该程序是获得extend里面的哪个值? : f b) c- D( ?! F" B$ o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????