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： % x) l1 ~1 ?, a1 e$ d3 W, ZName = (WCHAR *) L"Poke"; # P N" @# E) j+ k. a( Z 4 a4 p: w& v C. E9 h0 d
hr = m_pDisp->GetIDsOfNames ( 2 W1 @8 K: w1 r; {* o* c IID_NULL, // reserved ( G8 w& Z+ c4 x% g2 M+ C &Name, // Array of names to get IDs for % ]$ }# b3 Z) L' W& i3 I 1, // # of names in the array* r/ S* U2 b" \- r N3 ]# m# T
LOCALE_SYSTEM_DEFAULT, // System locale2 I+ u! x R5 p6 [2 R3 x
&pokeID); // Array of IDs to fill on output: C! c0 F: H; E& x1 R) C
# t9 E) r" O- d2 O# n if (hr)( [& O2 u" H2 G) R; E9 ?- d* Z
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MessageBox ("Get Poke Unsuccessful"); ( ~+ H. E) b3 A, `& A1 \ return;; [: S7 o8 ]. a9 I, D* B) X: A
} " q( q, G& j" H! f' @ / W. A, R! d: j- }/**************************传递数据给extend**************************************/ % R' u3 F( [7 @7 S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 {5 g: l- D9 Q& a6 R% j* z' J/ v
# r/ p7 k+ i3 t/ ?* L( \ valueStr = SysAllocString((WCHAR *) L"1232"); ; p6 |- A3 ]- M VariantInit(&pokeVariant[0]); 4 i; s6 f3 O9 S) s
pokeVariant[0].vt = VT_BSTR;* B! a/ x2 ]4 A$ M M; i, W
pokeVariant[0].bstrVal = valueStr; " l& J- r7 `! o* y+ _7 ]" R( D; l: B- y9 c" g# s" l& X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " G5 u/ h; e X VariantInit(&pokeVariant[1]); . @; N+ z. f2 T pokeVariant[1].vt = VT_BSTR; 5 w* \( B" e( K% i pokeVariant[1].bstrVal = itemStr;+ V5 ^# `9 t9 Z" o
# R) q8 A1 F: p% n- t. k; N7 t topicStr = SysAllocString((WCHAR *) L"system"); + f/ w' [! e/ c8 M* _- y* \/ k VariantInit(&pokeVariant[2]); ) d: M" ]+ O1 t J N; R4 w9 D
pokeVariant[2].vt = VT_BSTR; - i: d5 u* i* J& U pokeVariant[2].bstrVal = topicStr; + _+ }; W% @; i9 U! m : p- p/ ^# k0 |8 u# p5 }// Set the DISPPARAMS structure that holds the variant.% v* m* Z0 ^8 P% R" w) Z& l& F
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dp.rgvarg = pokeVariant;+ U3 {& Q* B& `! b
dp.cArgs = 3;( i N8 K- Y2 t4 Z5 F
dp.rgdispidNamedArgs = NULL; 3 {* _* X% t& T6 z, u$ ? dp.cNamedArgs = 0; 2 e9 d) K5 ^8 Z7 z / c, |5 r( f4 d" g. L, n// Call IDispatch::Invoke()/ ]8 B& Q* t: ~2 k8 s1 a
0 H3 c5 X( d1 ]! b/ U5 ? hr = m_pDisp->Invoke( 8 l2 j: b! I$ t3 J) W$ G pokeID, 2 j# `' F' D' [2 l6 {, X' ^% E IID_NULL, S% V; F" A" I/ |! L3 B
LOCALE_SYSTEM_DEFAULT, ( p5 v5 ^" Q: v/ Y DISPATCH_METHOD,! ^/ S6 K. m3 \0 B
&dp, 0 J! k5 y) O, u7 E3 @, S, J; B NULL, " s: I1 V- I' E7 X- w; z/ c &ei,) Q5 F4 [, j. l8 X3 q& T& r0 F
&uiErr); , A; }' M0 g9 M- V 0 y( y. ^3 y9 t% W SysFreeString(topicStr);, G) q) o- ?' n6 y. I% e" L
SysFreeString(itemStr);" b- W! [3 [! Z$ \- W5 P; @
SysFreeString(valueStr);- ^4 ? H) B, l6 v: D4 u
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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 X4 Q& E* ~- x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？？？？+ d% S e' z8 Y+ C7 F, }
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/ P7 X% J d4 o" j2 x9 F2.这是request的程序 , ?- F6 _' w+ N# f) p// Request a value from Extend 8 B/ b1 `% D, N1 j//( i& l H& P( S- E. B
// Initialize the variant that will hold the BSTR. Set the variant's # L( i5 E6 b9 P( m8 a// type flag to indicate the fact that this variant holds a BSTR. Place the 7 A4 J/ m( E& l' r+ t: s$ ~// BSTR into the variant structure.. w3 ~# {3 z/ c- O; `6 b
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 I/ [2 x$ v* c$ u( Y x- N. f! s3 ?# G $ L. y. {: J6 z7 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& H+ l k M2 X7 i4 N
VariantInit(&requestVariant[0]); / N3 w; g, @3 C0 U
requestVariant[0].vt = VT_BSTR; % t3 N& R, s' R6 Z8 P6 T$ w, t requestVariant[0].bstrVal = itemStr;: @2 i5 l; Q$ O5 ?+ r* N: Z9 y! f
. O% g5 {' z! Y$ K( h topicStr = SysAllocString((WCHAR *) L"system"); 6 p, o% e7 x$ W6 A) x$ ^ VariantInit(&requestVariant[1]); : E" K; m# f; d; ~( e. w3 s0 U8 J requestVariant[1].vt = VT_BSTR;2 m4 H; z6 b+ P9 f5 O% T5 R u: p
requestVariant[1].bstrVal = topicStr; ' n2 M0 L/ f5 H8 r1 X" T; {" k4 b/ C# |3 W) ~
// Set the DISPPARAMS structure that holds the variant. % o( Z( Y! X- F7 k! F+ e) G& ~5 s; S8 Y
dp2.rgvarg = requestVariant; 9 I. Y9 W( R* _+ Y; z1 B& n, a: m m( { dp2.cArgs = 2; + x* @; H4 |* t dp2.rgdispidNamedArgs = NULL;1 w3 T1 P& Q: z" o- v' g
dp2.cNamedArgs = 0; & m. T( B) [; p6 C/ Y0 q: ` ' q- x2 z5 Z- f6 G1 k! L var.vt = VT_EMPTY;% d* p' o* c$ i7 g
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// Call IDispatch::Invoke() % P5 ~# [# S- a" { & R4 I8 N* [& Z9 q$ `5 X u hr = m_pDisp->Invoke(. e. }+ X# m$ p% v/ J$ O) U5 M3 O. h
requestID, o! j K k7 l- I+ d! Y! O' o; l& H IID_NULL,/ T/ b: \; Z+ i* Z: i: c
LOCALE_SYSTEM_DEFAULT,( c8 K' z& ^ c
DISPATCH_METHOD, 8 ]5 n: e/ R2 D5 f5 x &dp2, $ p! I4 f- y1 H3 U" b" B6 O2 X- ~ &var,# G. @3 ~( [7 m/ Q1 v3 X
&ei, g7 D$ t" A" ^/ Q+ m- C
&uiErr);+ k$ L5 ^* A% a1 v: j/ ?
% D3 z/ v: T. I) ^+ F SysFreeString(topicStr);) A5 s- G) i p' J. ?: n
SysFreeString(itemStr);; O( c) R: y1 G: F A& u
请问该程序是获得extend里面的哪个值？; Z0 d; M j& R7 ~0 r! \1 ~
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
