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：) O5 Y" [. u# _; m9 {, g- s
Name = (WCHAR *) L"Poke";+ G. a, W1 Q1 F) z
/ c$ e. S& c+ E7 V0 n hr = m_pDisp->GetIDsOfNames ( + x b7 n8 n7 H- n: [' i( l5 a IID_NULL, // reserved C/ E' o. h, b" e% L
&Name, // Array of names to get IDs for$ ~/ }3 x2 x- M5 j3 @
1, // # of names in the array 8 x" S. O# y6 g# C m LOCALE_SYSTEM_DEFAULT, // System locale0 j3 e8 _! q, [' i" ^
&pokeID); // Array of IDs to fill on output % F: ?1 f! W: q + F) n! X! x% [2 @3 {' e
if (hr), u' ^8 }; w) `3 s
{- c3 |- j/ p/ g+ F
MessageBox ("Get Poke Unsuccessful");# U5 L4 [* i* b
return; 3 M6 \: B2 f3 V& S2 h5 w5 |/ z8 [ }7 J8 K, O! Z7 l' [1 w4 T
) B" H" E5 H& V% X: w0 u- }
/**************************传递数据给extend**************************************/ 7 D* N/ ?/ E9 B+ R pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, P6 n1 {. f. X
: Y- x4 T7 g1 P; v g% r valueStr = SysAllocString((WCHAR *) L"1232"); 7 b8 d6 o1 w7 @# p3 z) I7 F+ z, O VariantInit(&pokeVariant[0]); % ]7 P! o8 {2 ^4 i; b) d Q
pokeVariant[0].vt = VT_BSTR;& r" i6 a& @' j) v8 K, \
pokeVariant[0].bstrVal = valueStr;% E9 y x! p4 G; D7 v
6 S3 F+ a3 s" [. H% a- X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- b! S) B' @- m9 Z9 V$ `
VariantInit(&pokeVariant[1]); $ d/ ~; c4 _/ Y" {: z
pokeVariant[1].vt = VT_BSTR; + _$ k) C. s) w; L pokeVariant[1].bstrVal = itemStr;+ S. F4 p' k6 S8 T: @2 a% ?( R4 A3 `8 e
2 O9 d# T/ {, z$ g1 N( X( f6 W topicStr = SysAllocString((WCHAR *) L"system");" Q( \0 l6 T7 Q* Y, @7 p# _
VariantInit(&pokeVariant[2]); 6 [( b* e4 g8 ?+ m0 q
pokeVariant[2].vt = VT_BSTR; 8 j3 u( _5 B' \% W1 { pokeVariant[2].bstrVal = topicStr; " I. b7 s8 W3 `; s8 R7 r5 E, s# t( O J" p6 l/ e$ I9 ?
// Set the DISPPARAMS structure that holds the variant. ! b: Y8 ^" E- W& m! a& Y3 H4 T + f9 M" C# g+ K, d1 ]) [$ u0 l dp.rgvarg = pokeVariant; $ z% p {4 [& Y dp.cArgs = 3;6 D0 k4 Q3 _, w; s' v r, u+ U
dp.rgdispidNamedArgs = NULL; # `' k% ?) I |8 n7 ]& l dp.cNamedArgs = 0; ; k8 c8 r0 j+ l4 w: s' U. A' n8 M. n, \
// Call IDispatch::Invoke() , }! k9 r7 \, T& C+ V- C 4 r. {1 ^* v# k7 r. B& v4 V hr = m_pDisp->Invoke(. z9 d/ N& m. t' _: E) V K. z- `
pokeID,, S& M+ `4 D7 }9 K5 P" j, d
IID_NULL, - ] x9 E/ G; L% A( `& @ Z LOCALE_SYSTEM_DEFAULT, . L" R' ]2 B: J4 J$ |% \ DISPATCH_METHOD,. a6 S$ W% }& I$ j. _' i+ D
&dp,4 h, Z1 t: n( b
NULL,; ?+ l2 O: b; n D/ c' O8 P
&ei,/ }# ]3 u# m- }
&uiErr); 3 ~9 S4 T E0 T1 S' o8 `# d. N
SysFreeString(topicStr); _; {6 q$ z/ U; W( X SysFreeString(itemStr);4 i8 r+ `- G5 F; |4 b# g2 @; W
SysFreeString(valueStr);+ |" H9 P8 Q" l, ^: d& m# P0 ?$ A
- G$ x3 F# j/ J. y% r
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？？？ ; j( }4 H3 r) @4 g0 S1 H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？？？？ 2 g, |/ m8 O1 a4 S. u. _7 B) ]& L5 w6 g7 N$ `
$ p+ k" f# q; g* s. Z( d2.这是request的程序2 J( Y/ v9 @2 ?; d4 f0 e% F; p. h
// Request a value from Extend + ?5 L4 `' u: {+ e {// & L/ D2 m7 x+ ^ K! V% g5 x// Initialize the variant that will hold the BSTR. Set the variant's3 b3 ^9 g* [6 S) J+ o# [
// type flag to indicate the fact that this variant holds a BSTR. Place the! m1 Y1 m8 ~. ?$ I9 k: a* x
// BSTR into the variant structure. 9 Z5 [6 T5 O+ O" J ( K8 e, s; ~7 f) a- k% L: S U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 ?# `/ Y4 f+ i( R$ F; a, b6 W; \ " h! l; R$ ~ n( y' }6 ]6 k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 k( V7 ~7 ^6 A" l
VariantInit(&requestVariant[0]); ( s1 n/ U% u# ?% }
requestVariant[0].vt = VT_BSTR;9 _3 n! X9 a0 }: g0 ], O( |
requestVariant[0].bstrVal = itemStr; 0 D/ b: n; c% i) F. N: H+ k8 S! U5 h( m, m; i& D/ e
topicStr = SysAllocString((WCHAR *) L"system"); 3 q; g# O% B2 K" s; k" Y& _7 l4 Z VariantInit(&requestVariant[1]); % X! y+ k: V& A5 `, n requestVariant[1].vt = VT_BSTR;( ?. @$ y( N0 y0 J
requestVariant[1].bstrVal = topicStr; % Y! B0 Q9 ^/ r& h4 {6 ^6 W - h/ x; N8 ^" Q( D// Set the DISPPARAMS structure that holds the variant.: P4 [; R6 ]2 E! U4 w
9 d+ @) S4 ], E \& D: ?
dp2.rgvarg = requestVariant; * e G: }' Z; ] dp2.cArgs = 2; * ~' U' \) `# b |3 x/ } dp2.rgdispidNamedArgs = NULL; # `# f) y2 J* `+ v( [# l dp2.cNamedArgs = 0;! r8 ~9 ?) x2 M; G1 T( R2 @# S
2 a3 B8 B5 p5 Y3 I var.vt = VT_EMPTY;% y, C+ `* w$ ]7 G) F
$ ~/ R9 ?% R1 U1 D
// Call IDispatch::Invoke() ^3 P, G* X1 T4 S F/ e+ ?0 |
2 J: j, V4 k2 G hr = m_pDisp->Invoke(1 U5 O$ i! p+ `( N0 `' l
requestID,: Q2 |1 X9 S; U6 ?7 C' g, s2 I
IID_NULL, : `$ f! e# ]3 b1 y* N6 C( ~& r* f LOCALE_SYSTEM_DEFAULT," K+ `* ~# n! J: q( u& t0 e$ _+ U
DISPATCH_METHOD," \. v' p6 ?4 j; p% n! b2 M. r
&dp2,, r8 I# A$ F+ @, k. P0 i! U( _. X
&var,. T! M* g1 T; v8 q2 Z$ b
&ei,( R4 ]' h7 u( R" w' e. b3 S
&uiErr);4 c# r9 X: h1 K. Z8 k8 f" z5 S
* ^- K" E: y) j) |1 J6 {% c* i
SysFreeString(topicStr);: `+ a P3 g3 f
SysFreeString(itemStr); 0 M' g# i( k1 Q% u% t8 H请问该程序是获得extend里面的哪个值？ . {+ |; E# a: P$ s; b% @2 @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
