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:. t! n, I* R. G/ c& I4 j4 C+ s
Name = (WCHAR *) L"Poke";: l% [) S# x; [8 w
! i$ N* j5 L* q: K9 G2 F hr = m_pDisp->GetIDsOfNames ( 5 f+ s! a3 j- C7 |4 j/ j IID_NULL, // reserved0 {; T) G j9 j1 o' G
&Name, // Array of names to get IDs for 3 f7 W: k. i7 y/ X" i6 Y8 o- b* _ 1, // # of names in the array5 M Q4 h4 w; r) k' ~% j
LOCALE_SYSTEM_DEFAULT, // System locale* D% k, Q% t% d. R( t
&pokeID); // Array of IDs to fill on output 3 v. s1 O% o- [. }. ] / A3 p: Q2 N2 v6 `4 D9 [: \ if (hr)# M- O4 Z9 ^$ |% C
{ 8 T6 I w; @7 r2 Z; a MessageBox ("Get Poke Unsuccessful");* `4 I, Q/ j& B& S
return;" y9 D8 U0 |& M5 ^
} - D; i3 w% n& d4 p& l - S; n1 S2 x0 k5 k- H' r3 M$ x" w$ p/**************************传递数据给extend**************************************/* g( c. L; x ? ^% M4 i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . X% o$ i6 H& U8 O4 b" W- P0 L . X$ d3 ~, e1 Q% x2 R! | valueStr = SysAllocString((WCHAR *) L"1232"); 0 L0 A0 H2 J D) c# ^2 A' i1 t, R VariantInit(&pokeVariant[0]); 4 O; G8 s( M, t- o3 n2 k pokeVariant[0].vt = VT_BSTR; 1 a& e+ Z8 r# N" g1 B# A+ x2 Y pokeVariant[0].bstrVal = valueStr;" g9 G9 Q5 ]8 X" T5 Z) Y
5 O6 C3 \! d& o! H& u8 ` O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 q/ ~" y: g0 s/ S5 L4 `, \" d
VariantInit(&pokeVariant[1]); 9 F# y) D `: @" J) m! M3 j pokeVariant[1].vt = VT_BSTR;$ R6 ~( i0 b+ \
pokeVariant[1].bstrVal = itemStr; 4 t! v& i! r8 G* T5 b 4 ~- A; c$ r+ _2 f; B topicStr = SysAllocString((WCHAR *) L"system");9 J/ W* G, ?! S* V2 t* g4 R% x% y
VariantInit(&pokeVariant[2]); 1 p; r- L* P2 ?" ]* c- \/ b8 J. l) \ pokeVariant[2].vt = VT_BSTR;6 I1 v. t4 A+ ~, X. _5 E Y
pokeVariant[2].bstrVal = topicStr; , N5 I# b' C2 ?8 h# H6 Z2 q: r& F' D/ [3 c( m" X
// Set the DISPPARAMS structure that holds the variant.3 }- n) |) I. z; `, g2 y
3 ]# n \! t# v9 J. q$ v) U
dp.rgvarg = pokeVariant; + A" C/ Z' A" v& e, g; Z dp.cArgs = 3; " e* `1 G) u& o Z/ ]+ H$ n# a3 } dp.rgdispidNamedArgs = NULL;* n" O7 e# X8 E* |; j$ r& e
dp.cNamedArgs = 0;2 U5 E6 Q* F& `; m* Q
8 W' g% ]# |, W) a6 m2 x* q9 L
// Call IDispatch::Invoke()/ h* K' i- j7 Y. O6 `9 T% y$ f
# w7 _7 ~( v% P4 Y9 T hr = m_pDisp->Invoke(- F3 K6 C ?- n% a
pokeID, % Y. I/ N4 K D0 z5 S7 I$ ~0 L IID_NULL, 6 c o3 w0 s8 P6 Z8 F: M LOCALE_SYSTEM_DEFAULT, ) E' k8 M# K+ }/ ]9 ^ DISPATCH_METHOD, 2 @$ e) y; a% t- i( d &dp,1 ^" |9 x. O0 u3 e
NULL,* |2 w$ u- h- A" r( H2 g. Z
&ei, + r7 ^" s$ ~. B" a' N2 v, Z X &uiErr); : Q- f4 b9 [+ [3 B4 ]" { 0 m& }- S9 ]" Z; a `/ T( z4 T SysFreeString(topicStr); 0 A- [$ ^( j. V* X SysFreeString(itemStr); ( m0 h" p( [3 m8 @ SysFreeString(valueStr); 3 f! S; {5 K5 A5 ] $ L5 U* T7 x; Z0 o/ 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???" [/ b; P7 {* b
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???? 6 t: b/ ]* L2 O# H8 n) Z$ O: u& j( ]; ?8 I M( L9 V
, J( l7 j" E' n" U) }% I2 T3 B2.这是request的程序 - z1 W1 s% s: M; o) } z) t% ~// Request a value from Extend# V: q9 S+ I6 E+ S4 j- d
//4 X3 ?6 Y0 @# V9 t) ?0 v! {; \0 z
// Initialize the variant that will hold the BSTR. Set the variant's , W. |) u* y/ A( h// type flag to indicate the fact that this variant holds a BSTR. Place the: g4 B# Y R6 k, G) p
// BSTR into the variant structure. 3 E! H: u" m/ L# K) h: [3 [" }0 _) s! |! r+ y. w& L7 Z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ p$ ]. ~$ r$ _5 i, n 1 }, G2 w l; ~0 l. d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: j7 I8 p3 T$ b! e
VariantInit(&requestVariant[0]); 2 J+ I5 }0 ?8 T, W8 D& @
requestVariant[0].vt = VT_BSTR;* }5 }$ i$ r1 C3 J+ @$ G
requestVariant[0].bstrVal = itemStr; ' b/ }/ J9 O* K6 G& _. j* f+ m+ J) I5 y0 B, \. |- s
topicStr = SysAllocString((WCHAR *) L"system");% y& |9 D7 A; Z1 u- r( V# ]. q- [. @1 a
VariantInit(&requestVariant[1]); b p- ` u. C7 J3 o requestVariant[1].vt = VT_BSTR;$ `, c; J9 b+ H) t" y
requestVariant[1].bstrVal = topicStr; " D X. { H% F4 Q6 S& Y" y 8 `6 g2 g' @9 N) G( ]; C// Set the DISPPARAMS structure that holds the variant. - g. y3 B1 p8 h X3 o" W" S0 B6 h
dp2.rgvarg = requestVariant; 9 `6 T' W U2 Y( \3 X& B$ S! w8 W dp2.cArgs = 2; 4 D$ V1 w* D3 @8 Y; u dp2.rgdispidNamedArgs = NULL; . n+ k! u% e" \/ ^ dp2.cNamedArgs = 0;+ g/ w6 G/ Y: y% m
4 U u+ p. J: y, M. ]5 Y
var.vt = VT_EMPTY; / m/ ~9 \) ~: N& e1 l5 i5 A8 P. t2 p2 D' q! F4 m! _2 R; c/ q
// Call IDispatch::Invoke() ! ~6 E, o8 q7 h! w; L7 L; F7 A r" y5 t- L1 | p* L5 V, N
hr = m_pDisp->Invoke(8 g! U& L$ }" I4 \
requestID, ' D% _: r; g3 B+ T2 J# g* z IID_NULL, 0 O2 ~ \" x/ ?( h. U LOCALE_SYSTEM_DEFAULT, 4 Y; |" x; s$ U: v. T DISPATCH_METHOD,6 p9 }5 M( W6 F0 E- [9 e% F
&dp2, 9 D# ]6 ]6 _3 f# g- j &var, ! N9 \, {, U( r6 b4 [: U &ei,& P$ Q2 d, Y! _
&uiErr); Q, ]4 q6 E/ |! C' Y) g0 s! D7 r$ R- N3 I V, I
SysFreeString(topicStr);8 d' b5 T1 a0 A% F( [( M
SysFreeString(itemStr); 6 f. A- S Y- T: k. ]% J; B请问该程序是获得extend里面的哪个值? " d/ x) b+ p- M7 d, 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????