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： - q* w; A/ C$ D+ j$ xName = (WCHAR *) L"Poke";" M ]4 `% S& v* e. y
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hr = m_pDisp->GetIDsOfNames (7 L4 n, ^3 l) G9 T; {$ J
IID_NULL, // reserved ' N, N" z# f) [6 E6 c. ~ &Name, // Array of names to get IDs for. q# r3 {/ |0 g) Q
1, // # of names in the array , F3 }4 @4 h9 {) n0 L* K$ d; R: l LOCALE_SYSTEM_DEFAULT, // System locale 5 [1 `* t# L: l( e &pokeID); // Array of IDs to fill on output % L! {$ g" f" | # O+ x; d' e v if (hr) 9 ]5 X% a% b S4 s: d. O0 _0 W& g+ v { ' b2 M* ^1 A0 k5 Q! N% j# k' t& d" e MessageBox ("Get Poke Unsuccessful"); " l8 [- O- L- y3 w/ O, J9 R$ N/ ^ return;" V" E1 x/ i2 o- z
} ; S3 e b) \5 j9 G5 L. f # M4 \+ S5 V+ |& D w" n/**************************传递数据给extend**************************************/5 I3 n3 a- D4 [6 O2 v( W2 M$ a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& `7 s. {! ~2 w* G% X) U
4 [0 O, g6 @& {. C5 U valueStr = SysAllocString((WCHAR *) L"1232"); 1 E1 [5 J9 x# [6 ~" k S; H: }* Y: \ VariantInit(&pokeVariant[0]); # ]( r' o+ ~9 c0 l) V5 S" _ pokeVariant[0].vt = VT_BSTR; 7 r5 y0 q3 K4 X2 k( d# F O. M1 b pokeVariant[0].bstrVal = valueStr; * g5 O8 P0 r; a4 m" _ z N4 o7 }7 ?% w5 a9 O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 ?9 ~+ H4 O9 C N) C0 q VariantInit(&pokeVariant[1]); " W; I& F# J% r" y pokeVariant[1].vt = VT_BSTR; 7 Y5 Q2 H/ B# P% f7 @! } | pokeVariant[1].bstrVal = itemStr; 3 T) V4 `4 y+ l 0 a+ V' a3 ?) S0 j" _! j y! @ topicStr = SysAllocString((WCHAR *) L"system"); 3 x% ]6 U& s3 v/ l, J VariantInit(&pokeVariant[2]); 7 x; ^& O1 j0 S" Q, G* X
pokeVariant[2].vt = VT_BSTR; 1 U$ \$ X: q, e) b8 q8 m( N* K pokeVariant[2].bstrVal = topicStr; / K/ n* P- c* a, U0 ~ C6 b: \. D! R- A- F// Set the DISPPARAMS structure that holds the variant. 2 ^. r: X, Y; j. p) j5 x& | 6 M% `1 ?( z; E7 c8 b- V* e dp.rgvarg = pokeVariant;+ e' |" P1 F. r" H. b! j. u
dp.cArgs = 3;' d' k% ]8 H3 \4 U
dp.rgdispidNamedArgs = NULL; + Y6 H) c& c; N' B: q dp.cNamedArgs = 0;) G2 h( a# W" t% g) |8 {( V
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// Call IDispatch::Invoke()2 C3 W& N: E, t, X3 v! S2 Q
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hr = m_pDisp->Invoke( 1 i& k2 c% o* P9 V: q- p pokeID,; x# y2 I0 J# B2 v! I
IID_NULL,$ ~) {- x3 ?+ C9 _+ G% o
LOCALE_SYSTEM_DEFAULT, ! X# ?/ q* P) d5 \+ ]5 V9 A DISPATCH_METHOD,) C3 [$ K4 Y- e7 ^2 }9 W5 y2 s
&dp,: o. ]1 ]; f5 k' S
NULL, * T( V, O O+ ^; e$ J( j4 }, M &ei, + _% ^) F4 J6 u! C! j &uiErr);2 }/ F+ d0 [: Z6 d3 e" l! t i2 H
7 x. U! j8 z9 a' v$ y SysFreeString(topicStr);; D# c* w) ]1 a
SysFreeString(itemStr); ) ^: o7 i3 m- r3 `7 ~: U$ D SysFreeString(valueStr);& U- L" o" L; w9 W) B! @
; i! f6 U ?- z8 z7 x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+ F. n5 }( \9 A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？？？？; G1 E1 y1 q" y2 t$ F8 s
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2.这是request的程序/ @' i$ W. X* a- J
// Request a value from Extend + U% c0 a0 L* _8 c9 L// , L- h$ k8 {/ h! P// Initialize the variant that will hold the BSTR. Set the variant's8 ~' k$ j. o; g, X d% }
// type flag to indicate the fact that this variant holds a BSTR. Place the5 a; L( v: k* [
// BSTR into the variant structure. ! w! K. |2 w8 i$ s4 Q9 E5 j 3 Q0 N G4 `- N: l! X: z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 m) d* ~; Y- `2 }0 n1 r; Q' v- X
e5 \- H: x; t0 @2 ~" T3 c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% k) \; h, M; o/ h1 j
VariantInit(&requestVariant[0]); " n! d- u- E, N8 y1 Z* v; V requestVariant[0].vt = VT_BSTR; ( X- v6 d/ N2 @' g8 r# ? requestVariant[0].bstrVal = itemStr;- O, D' P% v a9 O: s
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topicStr = SysAllocString((WCHAR *) L"system"); & W' T5 G* z) B$ u; J, S% S8 g VariantInit(&requestVariant[1]); ! X. f5 f: g7 u$ x$ O5 |
requestVariant[1].vt = VT_BSTR; $ c- G9 b3 E0 X# u( f+ q; q requestVariant[1].bstrVal = topicStr;/ n: a8 n5 e" p: z. t0 _
" H1 N- b% o: K1 Q6 ]# Q( f: K: P/ Q% d// Set the DISPPARAMS structure that holds the variant. $ u5 c% d7 O9 N3 \ ! t/ n6 S$ p. Y% o# ?, g* J dp2.rgvarg = requestVariant;# a4 F1 c) {( X# u# F2 V/ ^, l% y. r4 l
dp2.cArgs = 2; @& N+ I% U) |7 N- W) \+ C- O
dp2.rgdispidNamedArgs = NULL;/ E6 ? I4 z; p5 _. ?; ^
dp2.cNamedArgs = 0; ' i6 u% `7 o( ^' u: f - f4 w8 x7 m: u- U var.vt = VT_EMPTY;5 A* v% K, G/ O" _5 z. B
2 d- ?% y) x& A( g// Call IDispatch::Invoke() $ q5 N3 d0 y- U# _, J: H 2 J2 [) j+ l- W! z8 I hr = m_pDisp->Invoke(8 p" j6 [( U: g, @; U7 V2 R1 S
requestID,0 d3 t, _. W f k% r
IID_NULL,2 B. E9 P6 q+ s2 i# j* @$ |
LOCALE_SYSTEM_DEFAULT, 1 \9 j M- {) q; ? J DISPATCH_METHOD, : n7 \: A$ M) P& z# k &dp2, & G: E: Q$ a" Y, H2 p &var, 8 A/ G/ ?* f( d0 e( v &ei,5 x% l: e- u ^* O& I& F
&uiErr); ( S* Q5 h% q( d+ ? n; U7 N& M: ^! |% H( k d9 b
SysFreeString(topicStr); 6 L' R! k( |5 n0 k2 k4 J( Y SysFreeString(itemStr);6 z; U1 `$ F' Y! C1 |5 ]& q$ P( E
请问该程序是获得extend里面的哪个值？) |5 H% B4 X% M# E
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
