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:7 J! f( }, o4 m. e7 ?& T& [# M
Name = (WCHAR *) L"Poke"; 2 [( A/ B' {7 I" v. ~' R; S: ^+ u 6 e1 n2 R2 e2 O0 C& V2 u$ j5 n' O
hr = m_pDisp->GetIDsOfNames (& H* s3 \" w; H) s+ P8 M2 ~. Z- `/ r' E0 [
IID_NULL, // reserved& ~& M! {# E2 \" _$ H8 }5 C
&Name, // Array of names to get IDs for* |+ E8 s( h: p: B) h
1, // # of names in the array1 V9 ?- Y/ {- g
LOCALE_SYSTEM_DEFAULT, // System locale, r9 X8 }/ p+ I: s
&pokeID); // Array of IDs to fill on output 7 X9 y: l7 c# [& m* W0 @9 p * b' U6 R* R1 S! S- r8 Y if (hr) " e, Y# ?' k+ g6 @* l s* m: z {1 f% V! V9 d8 t I
MessageBox ("Get Poke Unsuccessful"); % T0 J0 z2 ]/ l$ r' W return; & o# M: w7 X m: P0 R }5 s4 G/ R+ N4 I4 Y+ \% x7 ]
4 a1 W: F9 j4 A* P) a- U
/**************************传递数据给extend**************************************/ 8 R$ h# }4 b, Z+ O8 h( `! k5 e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 a3 v. l5 e! q+ c9 K3 P9 w3 s & {$ Q) ^5 G W/ l, U- q" j valueStr = SysAllocString((WCHAR *) L"1232"); ! j- F& K) H C+ `' a' t4 ~ VariantInit(&pokeVariant[0]); 3 _/ ~1 H7 ]% l0 u! D pokeVariant[0].vt = VT_BSTR;4 T0 S! f/ E* z
pokeVariant[0].bstrVal = valueStr;% f D( O) V9 ^# r; `; \$ e
0 A: a ]: M2 o9 u' r: s) A6 z' q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # D, t' n' E( I& ^2 G: A) X VariantInit(&pokeVariant[1]); - P) ?% m+ ~7 a& e/ h6 x& t pokeVariant[1].vt = VT_BSTR; y z- F" I {. [ pokeVariant[1].bstrVal = itemStr;& X0 p' H- S+ G2 @# _
! p( j1 @/ P8 }3 J topicStr = SysAllocString((WCHAR *) L"system"); ) ~# c- G S; ?) Z0 J$ o VariantInit(&pokeVariant[2]); 2 K: S G& D* E4 V) o7 h pokeVariant[2].vt = VT_BSTR;6 x4 P. l' }* X- O5 r8 r0 p
pokeVariant[2].bstrVal = topicStr; 5 p! o; D3 p6 y/ I1 o3 ?3 [( F: D9 ?8 c
// Set the DISPPARAMS structure that holds the variant.0 R+ r Q% g+ K! Y
- S% [- M$ w8 O* |1 I dp.rgvarg = pokeVariant; N0 p5 b7 W! Y* T+ x dp.cArgs = 3;6 n7 W2 ]/ p u0 b( g! z
dp.rgdispidNamedArgs = NULL; , [8 k9 E T( t7 p) O dp.cNamedArgs = 0;5 F: X: `7 H+ h2 n4 r
( B7 G, ^$ l9 j% L// Call IDispatch::Invoke()6 m7 _0 d$ x Q8 x8 }+ _7 U
: w; x' f% j! B+ J& i hr = m_pDisp->Invoke(# k9 Y# ~0 m! E6 @7 l' E j1 E" B1 W
pokeID,+ V7 t+ k! M) B7 v" B, k" B2 ~; W" d& g, Y& r
IID_NULL,/ b' L4 _! v+ S- u7 s/ ]+ a
LOCALE_SYSTEM_DEFAULT,: Y7 P A2 |3 r# P: J4 F2 J
DISPATCH_METHOD, 6 m1 Z: J1 v" {3 l' }2 E &dp, 9 P' e0 E* }- b6 W/ D NULL,4 P7 M& B9 u# }8 P
&ei,5 L& Y0 t: ]& J+ r4 i" `' t
&uiErr);( o" [2 g% [) s4 p
* ^( w$ N. ]: A, m8 r7 I
SysFreeString(topicStr);4 J* L: M0 g; u
SysFreeString(itemStr);( }/ Z0 }7 @" l
SysFreeString(valueStr); % O$ c+ e, f, Z1 b3 z L. r' K' K& S$ r2 ^+ ^
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 A+ G; C. B8 Q: q" e9 c
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????% I2 g* d# _0 U; o4 v0 d
. s) }* A& N+ d1 S9 K$ b
( {, T5 h z+ \) d0 C8 Z
2.这是request的程序, c: w- S# J6 P7 o3 g' v
// Request a value from Extend/ V8 C5 p; Z& r9 ~5 H8 N
//" g" M Y- |4 D3 V j+ e' ?
// Initialize the variant that will hold the BSTR. Set the variant's % }. W' j3 W3 h" s& J// type flag to indicate the fact that this variant holds a BSTR. Place the- ^* x3 r3 t& c" I: f
// BSTR into the variant structure. : e6 z. ~9 |! B! _% a p! b1 ~8 x5 w$ C
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! @' y, k8 T8 w7 |) Y
0 M; y! l. C4 _5 |; d- G/ `1 \5 e' o0 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - L- s, }5 X+ _" G. u VariantInit(&requestVariant[0]); : A7 N2 d& U; {& n+ U2 W; y# z requestVariant[0].vt = VT_BSTR; 6 { r Q2 r( u O. j j' x requestVariant[0].bstrVal = itemStr; , y5 m/ S1 V( a+ n$ G. n8 J' `: m" ^. Y! i* h4 Q! B
topicStr = SysAllocString((WCHAR *) L"system");2 G4 W2 s! |8 b8 B& Z/ n# I7 T1 ]
VariantInit(&requestVariant[1]); . }# ?5 d% M- O3 \, J requestVariant[1].vt = VT_BSTR; ( V1 y0 G- l1 S7 ^$ u) l% v3 f2 Y requestVariant[1].bstrVal = topicStr; ) b1 V" T2 Z' j) I( a9 u7 [9 a+ k6 S( Q; [. Q+ a
// Set the DISPPARAMS structure that holds the variant. 3 {2 n- w( N+ J, j! i% ]2 E) \, T1 W& Q# t8 \
dp2.rgvarg = requestVariant; + a S3 W0 K& Z& x% |& ` dp2.cArgs = 2;/ q# M- A: X, f( N, K$ i' ~
dp2.rgdispidNamedArgs = NULL; 3 z; x+ x$ }, r% w dp2.cNamedArgs = 0; " s1 w" o& a( Y3 O" D" X1 S* O0 q/ ^* R$ Y0 W
var.vt = VT_EMPTY; ) p$ D- ^ ~2 y A! W ( a0 m, I" ?) r( r; ]// Call IDispatch::Invoke()) F, B1 ~, r: h. ^1 [
0 o' u. p; M$ W8 H* K hr = m_pDisp->Invoke( ! l2 ~" \7 m' V- O9 J$ e requestID, % U3 Q/ f3 y7 c IID_NULL, W/ `2 R+ p4 b
LOCALE_SYSTEM_DEFAULT, * D& a8 A" _* c1 B DISPATCH_METHOD,: z R8 O I q4 g5 q7 H
&dp2, ; X6 B2 w0 ^3 [$ L4 p! O &var, & y+ Q5 P& d E9 J: w &ei,% v$ e, G' g( Q: u" \
&uiErr);% S' J/ m' L. J& K3 X, u6 p
1 K& \( E) E9 E G0 ~ v* l
SysFreeString(topicStr);8 e2 |- v# W( c; I7 }3 G
SysFreeString(itemStr);0 G! f& [7 E" t' b/ ^) D5 d. j. Q
请问该程序是获得extend里面的哪个值?- F& |0 m0 t& z
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????