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:' m) J' O7 E6 ?& Q# l9 N
Name = (WCHAR *) L"Poke"; 1 V9 O, L. i+ S' ^ " k; ^4 y( g! P' L9 ?$ S( V$ k
hr = m_pDisp->GetIDsOfNames (( G( o/ \" i9 C: B' v" k
IID_NULL, // reserved! r$ `' Y, {1 Z% K
&Name, // Array of names to get IDs for \* ]# ~7 s Z: X5 G' J
1, // # of names in the array 0 u* ~' m" h3 ^; o( P LOCALE_SYSTEM_DEFAULT, // System locale+ t' @, }; U' \
&pokeID); // Array of IDs to fill on output1 S3 f4 P& j5 b3 T# i6 z$ u" F; s
" u n" z- j* G" c$ s6 @. a if (hr): y$ G8 F+ y% V6 J3 x& Z
{2 w& j w" ^* }
MessageBox ("Get Poke Unsuccessful");/ t; m+ p/ D. X- Z7 J4 p
return;+ P1 Y4 b0 h: M/ h
} + L; @1 s ^3 L \/ q# o 7 k: S% @# ]' v: y9 }% l% W) U/**************************传递数据给extend**************************************/ : `1 @# S+ o( l& ^% [* W* O; c pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" W2 W( z1 @4 }( g
* v$ n) r6 d; X; _ valueStr = SysAllocString((WCHAR *) L"1232");* z- Q% H2 |; a! X& i4 j y: }
VariantInit(&pokeVariant[0]); 1 p6 H) p9 ~9 W; R. I2 w1 u3 r
pokeVariant[0].vt = VT_BSTR; / \& @( v4 S- U6 k; a w pokeVariant[0].bstrVal = valueStr; 5 i q0 q5 @, g1 l' q9 [' K+ D1 } g# Q& I$ o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " n. R+ e' l& `5 F$ O) A VariantInit(&pokeVariant[1]); 6 j4 _. y+ _/ l. Z# x pokeVariant[1].vt = VT_BSTR; 1 ?) _8 V/ Z$ |8 e; f% I pokeVariant[1].bstrVal = itemStr;- o# V7 c; B% d$ r2 o3 d C4 Y
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topicStr = SysAllocString((WCHAR *) L"system"); 1 S% [- J" ?7 E; w0 L0 l3 \( {6 a) p VariantInit(&pokeVariant[2]); % S# U% B9 P: H. n pokeVariant[2].vt = VT_BSTR;& E% ]/ ^$ v# I5 Y5 Y7 o
pokeVariant[2].bstrVal = topicStr;1 t4 T. m! k8 k' u; Y: V
! {& q( t/ R! z+ b// Set the DISPPARAMS structure that holds the variant. ) F8 t& Z0 Q; Q8 \2 F" p5 l8 [0 {6 F; [0 P: V9 A) ?6 N
dp.rgvarg = pokeVariant;: o1 a3 {( L6 k" j
dp.cArgs = 3; % K: u! Y4 p, j' o5 W dp.rgdispidNamedArgs = NULL; ' }( ]3 H9 ~1 g/ j6 P dp.cNamedArgs = 0; J p- V' Y( ~9 H" R2 N : l$ Z- y& [0 W( M. ]# ^1 ]. p// Call IDispatch::Invoke() 5 B i6 ?0 e+ w* v9 F& N# \; q% r8 r, X0 e/ n
hr = m_pDisp->Invoke(" N5 R3 S( f ]) a9 ^
pokeID,& y- \ @. E L. U9 R
IID_NULL, : ?' ]* A2 ^/ W LOCALE_SYSTEM_DEFAULT, / x7 \, V- p( S DISPATCH_METHOD,/ ^) c' z7 Y% v, \' ~
&dp,( K/ I, D( @7 A: R9 P$ F1 T
NULL,* r6 s( I/ K1 w3 N1 U
&ei, V% y; U1 O" d# W; s
&uiErr); o4 r: A8 z8 X6 M" O1 F
+ }8 \0 G3 R+ G1 y SysFreeString(topicStr);$ ]2 ? r" f' y6 u5 T
SysFreeString(itemStr);( D& L* [# N% d
SysFreeString(valueStr);* b7 ? N) e$ C
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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??? ; E+ H$ p8 g/ o- ?( w; F( v! ?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???? * y) t) ?4 [' [ [6 ?3 O+ Z/ W% s" A
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2.这是request的程序 ! M/ E) C8 s1 l// Request a value from Extend * P* [- { H# I( b0 Q7 U( n// - Q+ T+ {# R0 Q# v+ d1 }// Initialize the variant that will hold the BSTR. Set the variant's 5 f5 b W; q- |// type flag to indicate the fact that this variant holds a BSTR. Place the7 m; N$ ^6 X1 h% E' q! L
// BSTR into the variant structure. : f) x8 V4 d4 w) I : l9 ?; }; E# C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' j+ W3 z& K$ b% \2 m 1 u, T1 v) N. V! S' g& X) I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 p d9 K/ q$ q' m" W4 N
VariantInit(&requestVariant[0]); 3 P4 [; a6 p9 h$ X. G- [
requestVariant[0].vt = VT_BSTR; 4 N% c: u0 R% t; k# }7 u, ?3 D- A requestVariant[0].bstrVal = itemStr; , ]3 H1 L+ A: R5 H/ f$ R , L8 Q- B u" D( t0 I. | topicStr = SysAllocString((WCHAR *) L"system"); $ R3 n7 d; {: x: T2 W VariantInit(&requestVariant[1]); 1 m4 f2 x+ _6 @9 C1 K. _( X requestVariant[1].vt = VT_BSTR;$ k: J P s: ?- V$ w) N9 z" s
requestVariant[1].bstrVal = topicStr; * v" H3 E( f7 \7 y0 J 5 d& P. y9 J A4 g7 G* n }& \: U// Set the DISPPARAMS structure that holds the variant. 5 }! D* Q' Q4 R4 ?6 h0 y1 }" U * p& n, [9 p% Q2 d dp2.rgvarg = requestVariant;$ S) p p6 s& k# a7 q7 |
dp2.cArgs = 2;* X; a0 J9 @* z$ e
dp2.rgdispidNamedArgs = NULL; ' n+ F9 T1 U! @4 Z dp2.cNamedArgs = 0; [/ e/ ^7 q. ^5 W) y3 S, q2 X: k) x- D* x) Q
var.vt = VT_EMPTY;$ X; z/ G5 w; B; h1 Q5 d
) h* |1 }: J5 C9 L+ |' g6 m// Call IDispatch::Invoke()9 P* P6 o' I( t# P! R) C1 Z) h/ C- n/ _
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hr = m_pDisp->Invoke(* C3 ?2 C/ c* h1 c; Q O$ }, B9 x" o
requestID,/ _5 J: @$ A6 {; q- s- i
IID_NULL, 6 z w: A, u8 ?# X3 g LOCALE_SYSTEM_DEFAULT, 8 ~. M9 C" e. E1 y6 W DISPATCH_METHOD, 5 n' u* f8 h. ` X &dp2, * j; |9 N( s8 f% @$ h0 ? &var, % I% L k. n/ \9 ?# r$ O. s &ei,7 G& g9 t9 z* Z; z
&uiErr); ' |2 l& S% t M$ d) }$ b$ u+ p( _3 I6 x2 q2 I# V1 P
SysFreeString(topicStr); . f7 |" a8 v* v A T6 x1 F# p SysFreeString(itemStr); ' H4 r2 T7 A0 j: M; {请问该程序是获得extend里面的哪个值? $ v% w+ g) J2 }0 n [2 B4 O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????