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: * P- p. m! A2 w3 g( f! T/ bName = (WCHAR *) L"Poke";7 g. t$ ~) A+ X( P
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hr = m_pDisp->GetIDsOfNames ( ; [& l9 ^' F1 L9 ] IID_NULL, // reserved, E8 m i; D" F/ K( g
&Name, // Array of names to get IDs for 4 z& `5 E/ u$ Z/ P2 Y8 H 1, // # of names in the array4 |9 E' i. I" P3 L
LOCALE_SYSTEM_DEFAULT, // System locale 0 `' x$ R# \4 V+ r" e &pokeID); // Array of IDs to fill on output/ R! s4 n; j& g* s, [3 T5 ]
6 T* }3 X: t B; g% c' i- v$ c' z if (hr)& }, g0 ^: T, A! t# a$ a8 m" h) r
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MessageBox ("Get Poke Unsuccessful"); . I6 {; r& g" F4 Q4 o0 q( G return; : N7 y( T! i) J# b" L } 2 |0 \0 b9 H, u7 |$ M$ _% J$ U' O2 F9 h# h2 j- [) |1 |
/**************************传递数据给extend**************************************/$ ^5 Q5 C4 \) O' z" e; s9 i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 b( J( N( `( f ]& W4 a7 V ; E8 @; y# q: N' v" J
valueStr = SysAllocString((WCHAR *) L"1232"); ; W, a9 `. j8 @; [$ `1 o3 v/ I VariantInit(&pokeVariant[0]); ( }8 C- |, @ v* c6 ? pokeVariant[0].vt = VT_BSTR; : ]; ]# X+ g' I5 f pokeVariant[0].bstrVal = valueStr; R4 ^& z7 o; I; [, ~+ z) n + \" v% u9 @0 h% W% V2 m; Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ U. ]' }) q' I& {" k: I
VariantInit(&pokeVariant[1]); 7 Q, f8 N1 V6 X" l1 v2 L+ I* N$ I pokeVariant[1].vt = VT_BSTR; 8 Z, A# I* k$ T P" Z pokeVariant[1].bstrVal = itemStr; ! v) V5 [7 u& e3 E( h5 E- O 8 j9 f+ i! ?2 L& |- _ topicStr = SysAllocString((WCHAR *) L"system");* C' m+ X% v8 L% S0 k1 J5 ^
VariantInit(&pokeVariant[2]); # v6 \4 }* G- ~
pokeVariant[2].vt = VT_BSTR;7 h% m' u, g6 n8 H& l2 G0 T* C2 ?
pokeVariant[2].bstrVal = topicStr;# ?- d, V) A# U1 e7 O% D+ q" f
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// Set the DISPPARAMS structure that holds the variant.! F: r( Q+ b' J2 ~- I, L9 d
, T1 {' G) B4 o6 z% | dp.rgvarg = pokeVariant; # F0 `* l/ O; {' f5 q! Q dp.cArgs = 3; ) @- ]" S7 b8 P; f4 a, T dp.rgdispidNamedArgs = NULL;$ p2 G6 n: i1 M: e$ J. o" K$ f
dp.cNamedArgs = 0; : s) h. y6 A+ p( f* _* P0 ~" \7 l L; n& l6 }* y q+ V* @! I// Call IDispatch::Invoke() / }0 I# }2 v- q+ K9 K 6 T+ X! C! F' H7 d/ o) w) b hr = m_pDisp->Invoke(, c# E) b7 T8 I O- `# J
pokeID, 3 O* s5 s/ _5 l3 O IID_NULL,- v, [, X* {5 r: j8 h
LOCALE_SYSTEM_DEFAULT," m; d8 w1 |- `2 `5 _9 y
DISPATCH_METHOD,& _5 d5 T! x2 n. W9 A
&dp, & Z) A: j h; A( Y NULL, 7 h+ s- U* V1 Y7 \+ D &ei, 5 ~3 g* M& E8 G. Y/ D" p/ f5 J/ J' J7 [ &uiErr);0 L, Z0 L( k( `8 ?8 H- g7 x- E* v
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SysFreeString(topicStr); 9 X- |7 U# `8 l SysFreeString(itemStr);+ f) }9 I; l4 O! Z% v. J
SysFreeString(valueStr);; \: g. V% J0 G- q. J2 Q/ s
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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??? ! |% |, I/ X! A* _4 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???? ; a" w% `* E5 l9 X9 ^+ H/ W! d( v5 J& ]. j8 P5 N# Y9 f
9 |" O4 b, y1 v6 U9 x; E2.这是request的程序 5 |5 B' Q Z" q2 i) h// Request a value from Extend ' E6 Z$ u% N$ M5 T3 {9 ]& F// 9 F9 h. E1 X7 ~2 Z// Initialize the variant that will hold the BSTR. Set the variant's 1 n$ |5 }4 O2 A. _# H8 u) ]// type flag to indicate the fact that this variant holds a BSTR. Place the ; n* G6 R# u. A/ x// BSTR into the variant structure. ( R& M' C/ {/ {8 Q' e# [# y- |4 t2 a: ~' j1 g
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 m& ^5 |4 c- V2 I ( T4 t; w; U4 E r
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 O- J3 A' G) z4 l7 Z VariantInit(&requestVariant[0]); 9 @" J1 A6 j7 q f2 E9 o' `% X" m% C requestVariant[0].vt = VT_BSTR; ; t$ l. S! s+ [, r0 ? requestVariant[0].bstrVal = itemStr;/ S: L( [3 K0 e1 \% e9 m( @& n; H
* [1 G: C. w e/ a: t topicStr = SysAllocString((WCHAR *) L"system"); ' N/ T7 P9 g s* A! g VariantInit(&requestVariant[1]); 6 ^: O: r8 d. ?" j4 K) j requestVariant[1].vt = VT_BSTR; : V: G! ~+ l% ]: _+ c4 j8 y requestVariant[1].bstrVal = topicStr;8 q7 N8 y5 E: ?1 E# E d4 `4 e3 ~
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// Set the DISPPARAMS structure that holds the variant.# A b6 t. B! u- y; A5 E
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dp2.rgvarg = requestVariant; ; t5 Z" ?& ^, ~1 _1 r( } dp2.cArgs = 2;: [' N ^$ |6 l2 R
dp2.rgdispidNamedArgs = NULL; ' \) U/ u1 m, t1 j, R7 E5 Z. R) O dp2.cNamedArgs = 0;% R. c) m- s! |- t
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var.vt = VT_EMPTY;& q2 x" [* _+ E. M
8 r+ h6 M) P2 y t! T3 p// Call IDispatch::Invoke() ! y. G. ^' Q& i n$ y$ T3 v) I! ]5 I b2 \
hr = m_pDisp->Invoke( * G& V2 x! Q0 [, c* Y/ F, e requestID, 5 w5 ]. r( A2 V, w IID_NULL, ( M$ N" h/ {; {2 J2 i1 B, L, w( R LOCALE_SYSTEM_DEFAULT, - {" _" `7 g: V; V( `) a DISPATCH_METHOD, : g" p3 u7 |4 { p$ W &dp2,7 l8 y. {( z8 o0 ] L
&var,: ~ x* K( G- `; j9 r' e
&ei,3 L S6 o( \/ L$ u8 G/ O. Y
&uiErr); ! |- A ^0 \4 b. U, h$ V- Y6 {' ]" |/ R0 Z) o @1 _$ B# j
SysFreeString(topicStr); + j+ T" s& U9 R) f SysFreeString(itemStr); * N3 w/ C8 Q! T" G1 T: k' g- z' w请问该程序是获得extend里面的哪个值?& A: W) B9 O+ W+ f7 `7 _( _
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????