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： 9 R( s3 v/ f& C( D% pName = (WCHAR *) L"Poke"; . ~8 o, L- [; S% U4 o. v' R * @8 S, {( P" J4 F hr = m_pDisp->GetIDsOfNames ( N( ]$ d- J- }( u* O IID_NULL, // reserved& g9 U+ F& R0 J. S) F
&Name, // Array of names to get IDs for b2 R8 Z7 T C- W2 F 1, // # of names in the array - B. S) `, k5 w8 j& ~1 m LOCALE_SYSTEM_DEFAULT, // System locale - j! s) n; b" u4 {; V: g- x &pokeID); // Array of IDs to fill on output8 x, O( n# h' p; t/ Q, X& @9 l8 k
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if (hr) M/ t% E1 v0 g { $ n& ?( @8 N! T4 @3 F MessageBox ("Get Poke Unsuccessful");+ ~2 R$ c k! U5 m$ S1 {
return;" f& y8 `5 J3 X# Q, B2 x9 M+ l
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/**************************传递数据给extend**************************************/ $ i) h3 \8 O- j: E6 K2 _+ F9 q3 c& V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 H6 B6 e8 j$ D: j
+ x3 q* ?. P+ h) Y) B valueStr = SysAllocString((WCHAR *) L"1232"); $ ^4 R0 ?* p" G) q6 l VariantInit(&pokeVariant[0]); / A0 `' h: c9 P- z7 W7 C- O J; p
pokeVariant[0].vt = VT_BSTR;, B- R- o2 r$ m* j+ @; Z z
pokeVariant[0].bstrVal = valueStr; 3 Y" P1 J; `" f0 a, L ! w# G1 J5 N+ C) b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! |1 w( Q& K1 G/ x" A# l VariantInit(&pokeVariant[1]); ( f, _; k+ s' L- h1 L pokeVariant[1].vt = VT_BSTR; ; u5 M) N( x2 {/ w7 F' e* U# R pokeVariant[1].bstrVal = itemStr; 3 o! p5 R1 ~/ u4 p4 R1 ~( H. {* w6 O/ }$ m- X: W/ Q, m N
topicStr = SysAllocString((WCHAR *) L"system"); + C% {2 F+ H" L- _9 I$ C) m4 F VariantInit(&pokeVariant[2]); , X) w& @4 S) @$ Y( L2 i1 B pokeVariant[2].vt = VT_BSTR; 1 h6 t. h h' c4 \1 _ pokeVariant[2].bstrVal = topicStr;1 A4 F5 f2 i% _+ \
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// Set the DISPPARAMS structure that holds the variant.' J" Y0 @/ [" v& h- z5 k
, F" R% V/ r: B# F9 e/ W' v dp.rgvarg = pokeVariant;& Q; P p7 g; g; ]6 C
dp.cArgs = 3; 2 Z0 F$ Q* }/ E; q7 y# ` dp.rgdispidNamedArgs = NULL;6 |3 F1 N/ ?5 G1 W5 q
dp.cNamedArgs = 0;- @% R: N/ L! f. g/ N5 N+ ]
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// Call IDispatch::Invoke()9 h( n' b: k4 o" B
7 ^3 k& e2 D; l3 u- c$ R6 L6 y1 p hr = m_pDisp->Invoke($ B7 U" T/ W4 r: W$ K% _
pokeID,0 J1 k$ N* T g0 k7 z* R( i1 P8 e
IID_NULL,, H% R" y: ^# S2 o
LOCALE_SYSTEM_DEFAULT, / _' T1 h6 m, I1 w9 D" E" Q! r% V DISPATCH_METHOD,8 t) J [9 O' U3 ^! D' V
&dp,- a9 s( Y1 d1 q+ X
NULL,4 @5 k- q/ b) B
&ei, ' w; h6 b2 F- m& X &uiErr);* h6 ?* Q; c2 w+ _0 Y( H2 a
/ _. U6 o9 ?, m2 [' n SysFreeString(topicStr);1 M* Z. I9 L. Z6 }( }
SysFreeString(itemStr);) ]6 q; [4 l. R& b% k9 w# O! K Y( A
SysFreeString(valueStr);6 ]( ~. C+ H* R0 H0 Z h
: W9 @1 P! z8 \/ x) K0 Q' E9 Z. C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？？？ ) P3 ]7 A9 Y+ I) _2 \! F9 Z, \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？？？？4 w+ u8 u' L- E6 d
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2.这是request的程序1 h: M0 e' n. D
// Request a value from Extend( s* n3 R3 W) Z- J( n
// " l. `: u- |6 d$ e0 _; H( `// Initialize the variant that will hold the BSTR. Set the variant's2 w( [0 e M+ [
// type flag to indicate the fact that this variant holds a BSTR. Place the ' R7 [# Q( I- o: y# p9 ]// BSTR into the variant structure. ; d9 I. i4 n! k* j( Y; R8 B0 D7 e) B3 \- F* {; m1 h8 {
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# m/ r3 }- t _: n* I
" I( K. G7 p$ `% w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ k1 _, p7 H9 h# K. p8 Q VariantInit(&requestVariant[0]); 7 X% [# g' A* l2 k0 @; ~0 M requestVariant[0].vt = VT_BSTR; . @) t* H- B6 ?) M requestVariant[0].bstrVal = itemStr; * m- v+ q+ H+ s) Z/ y; W) r: H+ | W # \ d* C2 p1 b8 I topicStr = SysAllocString((WCHAR *) L"system");9 p; r1 ]' S" r! M* ?. e
VariantInit(&requestVariant[1]); , p5 G7 {6 d/ s; d
requestVariant[1].vt = VT_BSTR;3 u0 z5 i/ Y) w% i. ?" w3 m
requestVariant[1].bstrVal = topicStr;, \0 ]$ z+ k( v! v. f" U9 G! k' n
J/ B# e( o3 ~* c9 L, y// Set the DISPPARAMS structure that holds the variant.: y7 p, d/ x4 `
# W. s( m6 C/ D& l) B dp2.rgvarg = requestVariant;( G4 P- g, I+ r0 o) h e
dp2.cArgs = 2; & A% F" M$ k0 Z6 O/ @5 h& K% | dp2.rgdispidNamedArgs = NULL; ; {5 q; C6 m' n& n dp2.cNamedArgs = 0;2 ]" n* f* `$ B7 c* ?; v
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var.vt = VT_EMPTY; / |+ B; N! \' H6 i9 B+ w& ]* `- u* U
// Call IDispatch::Invoke() 2 s1 m7 P# `' @- w! n& _) d4 Q% w+ x
hr = m_pDisp->Invoke( " ^ B- v8 [4 |: V) O# k5 c8 a' L requestID,! w- q, } M. U5 c" M
IID_NULL, 5 S5 m: \5 T1 u1 `' i6 e LOCALE_SYSTEM_DEFAULT, 3 A( B! b( m6 q w! T, ~ DISPATCH_METHOD, & C& `3 R J* W) d& n) q) j &dp2, / a, u; m8 b5 G6 F- q7 B. G &var,% E7 K7 |$ B) d0 Y/ S2 `
&ei, : y2 r. K% z' N0 }4 ^ &uiErr); 8 n/ t* |5 A# ` f4 X" I5 E7 }! r5 G# [7 Y2 S9 @- Y5 B
SysFreeString(topicStr); ) x# ~" r/ Y: M$ ^' u SysFreeString(itemStr); ; n5 M/ \, `) D3 P7 f- }请问该程序是获得extend里面的哪个值？ / ]3 S+ P9 T$ {) O- x ~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
