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： % \/ j9 l6 S$ \1 g7 w+ kName = (WCHAR *) L"Poke"; 8 z M' n9 ~; _+ M$ s0 b ( V) A( Z' n! M& P3 u" E hr = m_pDisp->GetIDsOfNames (6 i6 {! s, c% O" d, d4 k" ?3 {) o
IID_NULL, // reserved % Z5 x! i. B/ z$ x; @& b# u &Name, // Array of names to get IDs for 9 C T+ C4 g I8 L7 @- { 1, // # of names in the array6 T! c2 X3 M( S5 s
LOCALE_SYSTEM_DEFAULT, // System locale M7 d8 ^7 q* L! X3 |
&pokeID); // Array of IDs to fill on output! Y6 \- V! ]# r
. l* W4 i' d/ M" \% i: X
if (hr) 4 C7 g2 T& ]& W! o& X { $ S0 ?, r: s- l( G MessageBox ("Get Poke Unsuccessful");; [* Z/ [! n# X6 q) K
return;" G* P9 N) v9 ]
} # Q3 s/ k7 F+ @ {* R$ F2 ^8 ~6 k* Z: C$ d; q& C n( d1 Y' S
/**************************传递数据给extend**************************************/* P0 W% W/ X$ T" v5 @1 S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! e/ ?! y0 e0 n 9 u5 q5 d% g8 [/ J1 k valueStr = SysAllocString((WCHAR *) L"1232");" W6 r4 ?+ L% ~ p5 V
VariantInit(&pokeVariant[0]); # g3 l6 u P" F; P" C% p
pokeVariant[0].vt = VT_BSTR;+ N# d2 n9 B; t. L% e
pokeVariant[0].bstrVal = valueStr;( r3 u1 e3 d3 Y+ F+ N2 Q/ r, R
0 E; E% c* _2 n5 M# d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ g2 Y' u. V$ \! i6 m
VariantInit(&pokeVariant[1]); $ W$ s1 X$ d& X9 L% u) L0 k pokeVariant[1].vt = VT_BSTR; ! p8 N- n. u' w" I' E7 P pokeVariant[1].bstrVal = itemStr;& g. o" N# ]2 b6 i% c
0 Z! } C8 S3 b topicStr = SysAllocString((WCHAR *) L"system");. u- B1 Z7 c! r: U6 i
VariantInit(&pokeVariant[2]); 4 C: Y2 B, c1 c pokeVariant[2].vt = VT_BSTR; 2 A1 W& D( h8 i" F! |; y* i# Q; G pokeVariant[2].bstrVal = topicStr; / @) W7 r/ H$ N+ K- T " N7 j, H7 y, ~3 e, U// Set the DISPPARAMS structure that holds the variant. % h: ?& I5 c2 R' G5 u9 x 3 n' F$ k: e* g U dp.rgvarg = pokeVariant; 4 A; ^4 D: d/ q; p+ f. E$ { dp.cArgs = 3;/ Y, {1 `0 v+ [* ] R9 {- k" ~. K
dp.rgdispidNamedArgs = NULL; / R6 f f5 d6 s3 [3 Z7 k0 F- p dp.cNamedArgs = 0; 1 z/ ^! g+ N- J- }' _4 K+ }2 Y: }
// Call IDispatch::Invoke()4 h+ V e1 v# \/ p) X
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hr = m_pDisp->Invoke(( f: p2 x2 t' z+ _! G& U: }& A2 @& m f+ l
pokeID,7 g, W7 g* r# A0 Q3 r
IID_NULL,# W6 r) r3 J/ g @
LOCALE_SYSTEM_DEFAULT,& T" S+ z- Z5 I5 v2 e( m8 [% ^
DISPATCH_METHOD, ; x. |/ T* V& Z4 ?2 P &dp,7 S, L( a: ?1 I4 }: P
NULL,$ L+ f7 S# Y# K8 X/ [" ^ \
&ei, , T5 U# y! D" a &uiErr); ( k& p2 j# t N; Q! ?; s/ z2 i7 l0 U) o
SysFreeString(topicStr);; K2 }& ^ _/ j, x8 K
SysFreeString(itemStr);+ F% o% S c8 {; z6 ~' I) c: i
SysFreeString(valueStr);3 T* U6 a& v; U. Y- _
, B# G0 I9 M/ p7 M$ r4 M% z
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？？？ 2 Z# c7 J# G' L$ E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？？？？0 u l' q& S$ c6 n
1 {8 k9 e# U- `( \ 4 Z) m3 ^. g a1 {# M2.这是request的程序 ( h; r4 b, Z. a! M& |! E M3 [// Request a value from Extend O. C0 ~/ L/ e- Y5 {( _" X//6 t6 Z& C9 Z* c5 h/ E% J P; j
// Initialize the variant that will hold the BSTR. Set the variant's8 ^; U+ N, `% \. l' Q" z
// type flag to indicate the fact that this variant holds a BSTR. Place the / k- E- I8 G& L% P% O- o o, e5 x// BSTR into the variant structure.1 M2 U5 |+ e- U- h1 I
9 P0 K/ v4 z7 a) {6 \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* [3 q& c9 i3 H* D( n
% G' Q/ u! O, W2 z$ L9 x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' Z7 B. `3 A @& ] VariantInit(&requestVariant[0]); ; m; T& B( a9 W3 h
requestVariant[0].vt = VT_BSTR;+ q, _& ?+ f* D
requestVariant[0].bstrVal = itemStr;& _5 C1 x5 i/ L _; i/ s
" ?* O( \1 J: U t topicStr = SysAllocString((WCHAR *) L"system");. r1 @' \, ]- r7 p
VariantInit(&requestVariant[1]); # K2 ?, R% n" Z1 I3 z* f requestVariant[1].vt = VT_BSTR;6 I5 E: F8 U, o+ K4 R- \
requestVariant[1].bstrVal = topicStr;3 H) ]7 h* L$ [) C
- w+ E, i" H5 X' g" D# e// Set the DISPPARAMS structure that holds the variant.: O& H0 h# M& O1 E
- E% i l3 ~0 K dp2.rgvarg = requestVariant; " o( N" B, q) q, w0 ~3 s! f5 Y! n dp2.cArgs = 2;: p- Q( t; s# M( s
dp2.rgdispidNamedArgs = NULL; , B& } R+ q4 V7 R! q+ J dp2.cNamedArgs = 0;: S! Q" R" ]% V! D6 X( \# b
: e Z" f9 X* |0 h3 H* U
var.vt = VT_EMPTY; ; n/ k5 a* C d) F: c& ^ 1 D/ M0 |7 v- Q8 h( Q8 [ [3 q// Call IDispatch::Invoke() p6 k: C* _$ N: l0 K6 S
n" n5 u5 a8 `+ T. g8 } hr = m_pDisp->Invoke(" n3 d- n/ Q6 q# [. l
requestID, ' ]' E9 {+ Q' w7 ] IID_NULL,$ e+ k5 C/ s; S1 q; }
LOCALE_SYSTEM_DEFAULT, & ^5 F0 ?7 O' n5 K* `8 K& i4 U DISPATCH_METHOD, $ W( Q! v% U u- U: A* w &dp2,) |$ p9 P- E d1 s/ M6 O
&var,, r9 _' F& \ V
&ei,8 S! x8 s7 p9 M' d$ W, ~. A1 O
&uiErr);6 T9 A% b7 ?; z
, J1 q" g, ]! K4 E8 Z
SysFreeString(topicStr);* v, F& }6 Z1 c& u$ K' T9 n' _- y; v
SysFreeString(itemStr);# } [: H- k5 A! n3 c
请问该程序是获得extend里面的哪个值？& f# H; H3 i# h( Q
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
