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：! C! X$ Z9 C( o0 L4 s$ ?4 m, }
Name = (WCHAR *) L"Poke"; % E% ?% C) C6 {( c" U" {% u$ s6 d& p ' R' m( J+ A! d7 }5 r: o) K2 { hr = m_pDisp->GetIDsOfNames (( p3 Q; `2 p0 X5 x" A
IID_NULL, // reserved: S9 [& Z. v2 r9 B
&Name, // Array of names to get IDs for- k) {1 Q1 e# ^
1, // # of names in the array! z& d9 b. q, Y# A
LOCALE_SYSTEM_DEFAULT, // System locale 1 y6 J+ s9 \8 y- I &pokeID); // Array of IDs to fill on output + d- U6 V$ C* x8 s& o - @$ R" T$ j) ~! N: `% s% U
if (hr) 7 c" ~5 k8 J2 R: j% p0 C9 z9 D$ o { # Z9 u2 H) `* | MessageBox ("Get Poke Unsuccessful"); ) x5 Y; J1 F' \7 {" a% O$ r return; : p2 [9 \) a3 A$ Z8 b) U } j! B" g+ L# w% h2 g
0 C( v, b2 x7 E. x# h
/**************************传递数据给extend**************************************/9 y. P; f* g9 E* n7 R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * B& Q r9 I8 j% x; K q8 X$ X ! e" f, A- d7 k* H8 I6 t
valueStr = SysAllocString((WCHAR *) L"1232"); # m) R5 f% k f0 l VariantInit(&pokeVariant[0]); 1 ~% _, s* B( j$ e4 n7 n pokeVariant[0].vt = VT_BSTR;+ V% Z' q0 X& F D9 ^8 X/ j! ?8 f$ @
pokeVariant[0].bstrVal = valueStr; ' M( u4 ~' W! i& x" ?! v% C2 ^# v% O& u! f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 k* h) ] [& } w! p VariantInit(&pokeVariant[1]); , n+ U. a$ B1 S3 [- r2 B2 i pokeVariant[1].vt = VT_BSTR;7 n" Q- o* p- W' z; f
pokeVariant[1].bstrVal = itemStr; 0 ^1 L+ t$ ?6 G! R1 o: i* J( n# ^9 K; [, n1 g- j. Y/ t5 E
topicStr = SysAllocString((WCHAR *) L"system");* S( u( c8 t" `5 R- [9 Q9 Z
VariantInit(&pokeVariant[2]); T! ]3 q3 O" v8 }
pokeVariant[2].vt = VT_BSTR;- Q; P" m! L- T& t8 @# J$ Z
pokeVariant[2].bstrVal = topicStr;8 H, I7 {" i8 ?- G9 I' |5 E
; l( L3 H+ X# j, i9 S5 v// Set the DISPPARAMS structure that holds the variant. ( M9 S9 L4 n8 V. Y7 [) N. [' N& B7 D2 ^0 q( t2 s3 O2 \
dp.rgvarg = pokeVariant; 9 x/ f; ?; U/ H! k2 R dp.cArgs = 3; + u+ s$ }2 a0 X3 r dp.rgdispidNamedArgs = NULL; " G' D8 q+ n- g' \ dp.cNamedArgs = 0; - d- \9 ^7 }4 ^+ U# v 0 z( X1 l3 E$ A4 r// Call IDispatch::Invoke()1 ~; b+ a6 a% c! u) A
& ^2 ?2 _5 X: K/ L; R' k7 f hr = m_pDisp->Invoke( " h" \- {) x$ T& t) D pokeID,8 d3 w3 H! @4 j o: N& N8 w
IID_NULL,7 p0 c. v* F% s3 W
LOCALE_SYSTEM_DEFAULT, 8 Y; N6 n' r& K+ Z2 g. R6 x; y DISPATCH_METHOD,6 }1 X9 n, }+ B& M+ L
&dp,0 R$ {# W% X) D5 c8 f4 K: z" G g# ~
NULL, & c' J, B- s: i$ |, l &ei,$ b3 L$ p* Y$ W6 B: q9 Q6 ^
&uiErr); ( O( @9 z$ F. D# u2 ?1 h5 b* P5 Y% D7 ] Z7 e0 V
SysFreeString(topicStr); 1 |0 \% b) t7 y/ n) L) E9 L; _ SysFreeString(itemStr); , G. N4 l1 ?3 d# J ? SysFreeString(valueStr);7 ]7 q1 ~9 {* c8 ~
! g/ y5 g' T) M; u
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？？？! f( B, d' o" n# F0 w9 d
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？？？？) C% ]8 X) c+ i2 V: Q% I
+ g* V, @3 d; \0 [2 p0 d 7 m: Y% K: I4 g7 E2.这是request的程序 : h; j) h) G# C; b, W// Request a value from Extend / |/ h. ?3 z# k* w+ ]8 e* k- I7 X//3 [. x% q& [6 n; f) [' t( J$ X; s4 Z
// Initialize the variant that will hold the BSTR. Set the variant's7 q* C- C# }' K; P3 i5 [; G
// type flag to indicate the fact that this variant holds a BSTR. Place the4 B" D& }+ X% w1 B$ n! ]+ H: Y
// BSTR into the variant structure.0 B" ?) o3 ^- D
8 k2 t5 i/ I" j+ j; z! J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : N. Y5 b9 m) w$ i3 z # n/ c L+ J5 q* v: J) T) j+ |8 r) m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, ?) `7 N$ o. l2 B- c4 V, t, X
VariantInit(&requestVariant[0]); 5 g, r. e& Y5 x; g2 ~ L4 [+ M8 T requestVariant[0].vt = VT_BSTR; + K3 [ C, ^7 e t `. ?. a requestVariant[0].bstrVal = itemStr;/ V$ t4 f. s) K2 h# P9 b# `
/ s/ q1 A' n- }% {5 x/ Q! r
topicStr = SysAllocString((WCHAR *) L"system");% \3 t# H3 X& Z$ |6 i5 N/ ]3 ^) n- }6 F
VariantInit(&requestVariant[1]); : {5 ~0 P+ s* F5 W' L, S
requestVariant[1].vt = VT_BSTR;# Y" O$ i. E( J4 S7 l: s2 b
requestVariant[1].bstrVal = topicStr;- Z& y1 M" K$ r+ n% M& g
+ j( D8 \$ Q' n* z// Set the DISPPARAMS structure that holds the variant.* ` s: H0 {6 c: ]
( q! B5 j, a! _ D0 y0 G dp2.rgvarg = requestVariant; & T0 O, }1 I. d+ O4 E dp2.cArgs = 2; : y* ?' w5 p' _ dp2.rgdispidNamedArgs = NULL;& J6 {4 y/ h, N0 D* }) T8 V
dp2.cNamedArgs = 0; ' f! j0 b! H- Z. L! |3 d ( ?) P7 ?8 ^$ v& D2 | var.vt = VT_EMPTY; 6 P2 E) [3 v% [" {% i0 a* S3 K8 x/ u9 O
// Call IDispatch::Invoke() ' g' R" ?* @5 y! ?& Q+ P7 f6 y' Z/ r2 c
hr = m_pDisp->Invoke( % L( i; y" @: l S requestID, " z- P0 \+ X( O1 l+ c8 l IID_NULL,% M5 b; f! C4 S" A+ C/ A e
LOCALE_SYSTEM_DEFAULT, : q* z! r9 |1 Y. D4 [3 I DISPATCH_METHOD, ; L- o! l3 Q, M+ B% c &dp2,$ x% Q2 k3 k2 J, I* v+ j# g0 J
&var,# a, f" E$ G, o
&ei,, X0 b# X& V1 r$ _/ }3 [ A
&uiErr);, P7 t" {9 _+ ?* C. O) {% h
" D! s5 m. {" p; x SysFreeString(topicStr); 3 c' Y& I# F8 s; t- w# A SysFreeString(itemStr); ( l; W. `& [! {请问该程序是获得extend里面的哪个值？ ; u% w5 K+ k9 s4 |0 H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？？？？
发表于 2008-11-25 19:37:03
