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: 4 U9 Z; \% ^& p& n; u& YName = (WCHAR *) L"Poke"; ; _9 p7 O8 d ?; T6 ^ 4 D1 ~- m7 G! V" y
hr = m_pDisp->GetIDsOfNames (" J0 \: K' p: B- r6 Q
IID_NULL, // reserved : u) M$ D7 m( w* G &Name, // Array of names to get IDs for2 N9 }2 I+ D- m7 H/ F
1, // # of names in the array , s; \# r% t/ F- E' @ LOCALE_SYSTEM_DEFAULT, // System locale0 x* j" a, k' B! m
&pokeID); // Array of IDs to fill on output. w A' v- [; c
" {1 B0 i" D1 U ~6 ~2 d- }: f if (hr) 2 t( O& \1 X1 B7 A { . r& C- U. s+ Z/ C$ N# R" B& b MessageBox ("Get Poke Unsuccessful"); ; L7 r7 t% I7 Z$ A return;' P% x$ a7 `$ j
} 3 ^. U* Y% a# i( S4 I$ A( f% U4 }: `: Y0 h0 r4 f# V
/**************************传递数据给extend**************************************/6 ^- Z; p3 h+ T9 a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - G9 G4 C7 [6 J & ^; ~% k4 y) D0 n- }8 `
valueStr = SysAllocString((WCHAR *) L"1232"); + @* F5 h! q- }; r5 V6 i VariantInit(&pokeVariant[0]); / h6 U3 j- w E
pokeVariant[0].vt = VT_BSTR; : ?- I( A5 W. G* Z4 F& e+ X, J pokeVariant[0].bstrVal = valueStr; {6 F# Z$ o. p& ?+ e - u! B5 [, Y. Q/ |9 r) b: w; H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" T, q# U O% o6 }
VariantInit(&pokeVariant[1]); 3 _9 g- ^ @7 I
pokeVariant[1].vt = VT_BSTR;/ ]6 ?* z- ^( J5 ~% y: T6 l
pokeVariant[1].bstrVal = itemStr; ' F2 f. b2 Z; t5 O ) g/ Q' [8 h2 O g. E& B7 j topicStr = SysAllocString((WCHAR *) L"system");, |4 e l4 G5 N2 c
VariantInit(&pokeVariant[2]); / O$ C9 u# b) r+ `0 T7 K- n* C pokeVariant[2].vt = VT_BSTR; ( |7 A- Q; q. L pokeVariant[2].bstrVal = topicStr;. k* C. J3 Y- h' A0 I
" Z( J8 J* i) }6 _& V! S7 O# z// Set the DISPPARAMS structure that holds the variant. ( y# ]1 j. e- m0 }. t1 Y' e, d + m0 m- L0 _! J" t dp.rgvarg = pokeVariant;: ]1 U9 s4 \. Y1 }
dp.cArgs = 3;' c# i3 d( { `/ c" W5 T/ I
dp.rgdispidNamedArgs = NULL;& `' C1 ~5 E o& N
dp.cNamedArgs = 0; 0 [8 H5 D* z# m$ c4 \. \* }/ L7 \. D$ @- C* X# Q
// Call IDispatch::Invoke() ' t ]( `' [$ [; s0 W1 [; | Z5 [' P9 x! u' E# p
hr = m_pDisp->Invoke(# H- j: M0 f K+ s
pokeID,0 g5 U3 @, S# p
IID_NULL,$ q& P& e* O. m
LOCALE_SYSTEM_DEFAULT, ; L" U, Y- ]6 W1 l6 E- t+ S DISPATCH_METHOD, $ T6 q* \) K' U1 L' r &dp, ) ]6 E& L G# E( ?, F! c* C NULL,1 U5 Q6 I% ^! r% M, R/ ]; O& [7 ?
&ei,7 N* r+ e/ z$ k* w& x# ]
&uiErr);, D! N+ ~3 E+ U: @
) Q! J: A, P1 Y3 |2 H8 r. t
SysFreeString(topicStr); . I; R; v8 S( w, h6 `$ u SysFreeString(itemStr); 4 K& B" f, v$ r6 T$ [! X6 G SysFreeString(valueStr); u" ^- u1 @% Q% t- y6 a ?0 X) D
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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???# h8 H- X2 h; R& V4 N
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???? _, g7 r( T s5 s) o5 }8 o5 |
! {( ]/ O/ q. {: o/ u 0 [' C4 l1 R( K6 a8 l% K' g0 B2.这是request的程序 9 z2 d6 b M; y! ~2 b5 ]7 _# [// Request a value from Extend : j9 X2 V6 \ w' o' }5 w3 C9 o, y// 9 `2 u/ Y I. l2 z+ o8 N// Initialize the variant that will hold the BSTR. Set the variant's( Z2 i) V# [! K1 v3 N( C- l
// type flag to indicate the fact that this variant holds a BSTR. Place the5 X2 Q& W1 |$ t, A" ]+ v. ^) n
// BSTR into the variant structure.# s$ P9 e' S- U4 z1 V' Q
% a1 W q: Y& y/ p9 Z- j% M
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 `! z! x B! b, q6 \7 G 6 U5 z `/ t1 r) R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 f d$ H3 S- i VariantInit(&requestVariant[0]); , K8 \* B" @* [8 J+ M$ E; w requestVariant[0].vt = VT_BSTR;! C6 n- F9 x. d1 D9 d
requestVariant[0].bstrVal = itemStr;: [% i/ }; q9 Z& e2 @" a
! [$ Z, F7 g- I topicStr = SysAllocString((WCHAR *) L"system"); # r5 r# n$ C9 A+ \ VariantInit(&requestVariant[1]); + p3 y$ ~) J. }5 W
requestVariant[1].vt = VT_BSTR;4 W$ C L; q2 U7 i& Y
requestVariant[1].bstrVal = topicStr; 9 ?3 r; X1 [" a1 T1 ~! Y/ {+ B! W! _( A3 l* j- D* u' X. A/ ]( b
// Set the DISPPARAMS structure that holds the variant. 5 D3 B: Y) {5 s5 b4 ^6 _6 P {, z7 L7 z( r- k; ~$ ]4 m
dp2.rgvarg = requestVariant;- r- V3 ]& l# g$ m2 |! B) U
dp2.cArgs = 2; 4 i! Y6 d1 J! ^( d+ L. Q dp2.rgdispidNamedArgs = NULL; " g4 f6 w2 y0 o6 B7 m3 e dp2.cNamedArgs = 0; 6 E! d& ]* I) u1 \ H5 }# P6 m _( O. V% F
var.vt = VT_EMPTY;/ M; B- m( E4 M. l
# h7 L/ `2 w& m9 f' i
// Call IDispatch::Invoke() ; J9 G, i8 g$ \ , ?* ~/ [2 A0 |( P hr = m_pDisp->Invoke(6 r) l6 V5 J+ @; S' N) n4 g9 a
requestID,1 I8 p, W% Y+ b1 d5 O1 Y, ^
IID_NULL, 3 b$ ?" e: C& p# I8 S LOCALE_SYSTEM_DEFAULT,1 X! n6 H q, X! S
DISPATCH_METHOD, 8 _$ E* `9 Z9 E" E) \, g- c &dp2,# l* D* B1 t0 `: T7 T" g
&var, $ N. F3 i- m t2 ~5 l9 k &ei,9 h1 ~8 T) P! _# s- [+ D1 l
&uiErr);7 ]7 P9 p, o2 Q/ S
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SysFreeString(topicStr); * n( Q. p" b/ j. V8 w SysFreeString(itemStr);1 p1 k* k- D; |6 V
请问该程序是获得extend里面的哪个值? 9 f# w) D+ a5 S- ^! o/ y/ s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????