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: 0 y8 A1 t% k7 Z; }9 M+ xName = (WCHAR *) L"Poke";" s1 x. p2 J6 G$ z; T
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hr = m_pDisp->GetIDsOfNames (9 ~. D9 q$ e8 `5 X
IID_NULL, // reserved0 U8 {3 |( J& h o/ n
&Name, // Array of names to get IDs for: ~: I! X, A D$ ?3 B1 y& X( L
1, // # of names in the array : B$ s: R* @1 ?# m& ` LOCALE_SYSTEM_DEFAULT, // System locale# Q+ x$ o; x2 K8 r* `5 Q- S
&pokeID); // Array of IDs to fill on output' d% u, ] j2 ?% n" h J
* ?. O! `2 Y: Q3 Q if (hr) : [$ a1 S( N; C5 @0 \0 K {; ]6 w J" J. `7 {7 h+ r: K
MessageBox ("Get Poke Unsuccessful"); $ a' ?: e, V u5 \ return; 3 q$ I3 n7 `& X } ) J& o* ?4 ^3 t7 {' k- n 7 e& D" A' m/ O/**************************传递数据给extend**************************************/9 P9 e! f% J( v" p' K" [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 g* N) p; i) I
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valueStr = SysAllocString((WCHAR *) L"1232");8 ]7 K: U( t/ m" T; P
VariantInit(&pokeVariant[0]); : @ K7 Z$ Y7 c# ] j( [9 u% s' @+ ? pokeVariant[0].vt = VT_BSTR; " y! _* c6 E+ i3 _, D* v- t pokeVariant[0].bstrVal = valueStr; . D$ [7 t& ~( S * B- O) D$ z0 K( g @/ w) b6 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; I) i; d. J V( I" V" Y5 o VariantInit(&pokeVariant[1]); " m6 o9 m: [# V
pokeVariant[1].vt = VT_BSTR;: W5 W. Q6 P! N2 y
pokeVariant[1].bstrVal = itemStr; ( A( _; ~0 f+ {; \8 E & l) s0 g, b: j! ~5 [! d' M1 G3 B topicStr = SysAllocString((WCHAR *) L"system"); 1 ]+ L' Y6 b" f d+ R2 m' u VariantInit(&pokeVariant[2]); ) U2 x# a7 L6 V( c9 @( f |- j, ` pokeVariant[2].vt = VT_BSTR;& }9 l; }1 p6 \+ _( k
pokeVariant[2].bstrVal = topicStr;- t" A: k/ _3 {$ u6 C4 e
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// Set the DISPPARAMS structure that holds the variant.0 j( n9 u2 z6 X, \. e
+ A' p; Y5 Y- [. F \: |+ w5 a dp.rgvarg = pokeVariant;' x0 |7 g# P/ i0 n4 m9 A" ]
dp.cArgs = 3; 8 l4 \. A% T6 M# O! d- f2 ` dp.rgdispidNamedArgs = NULL;) r4 u# i: h }6 s# _
dp.cNamedArgs = 0; . f* g( ]9 R: B2 ` : b& K* C; o: i+ M! N/ I, m5 L8 ?. m// Call IDispatch::Invoke() @8 `, ?: |! k$ |4 ~0 \1 |0 |3 f5 B
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hr = m_pDisp->Invoke(; x/ i8 l# k2 x4 r$ Q- u5 p
pokeID, 1 b. W p# M# _7 J IID_NULL, ; Z5 q. D- G6 N/ E1 ^; j" T LOCALE_SYSTEM_DEFAULT,5 S& w5 h1 R3 X1 f! S
DISPATCH_METHOD," D; x3 L- F! G/ l
&dp, + H% ~, Q5 @, G8 g. q& E NULL, - b* f) Z( p# b! W &ei," ?' D' H. f& y# m
&uiErr);1 C! C" C/ K4 I1 M3 ~/ f8 g
; B5 p; h# `" G1 F SysFreeString(topicStr);. \( k+ p# m& g- K% T
SysFreeString(itemStr); 2 I' t5 e9 E3 P4 f" E" K' ~ SysFreeString(valueStr);) x3 I/ ]. `7 @/ d" ^( g
& s* Q% T- n' h( R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??? $ t) z( \, x/ @/ d% \( S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???? - C" f2 Y1 L& `' @' m3 |& v% d- l+ S g 0 R/ g& q3 M+ }: X ! L3 t% O& G4 L* b9 W2.这是request的程序( a9 U9 L* g( n) Y
// Request a value from Extend! s) K, ~# ~; A6 n. S" ?$ Z
// ; N1 H0 L$ X Y7 l// Initialize the variant that will hold the BSTR. Set the variant's 8 O6 j+ O6 d) D# M+ f) p// type flag to indicate the fact that this variant holds a BSTR. Place the * a2 Y1 |. K3 k) b% K9 i, Q& e// BSTR into the variant structure. " s& L3 n" O9 F8 v/ m; [3 ]) w3 @7 O; K" u, e I& i9 w, ^& m% i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% h8 Y. y$ q+ Q" S: [8 T
3 G/ q/ Y* S: Y2 D2 i+ \. { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 r8 i( n4 F! `7 `+ n' a VariantInit(&requestVariant[0]); / D& R# p$ O/ S, D/ } u, E
requestVariant[0].vt = VT_BSTR; 3 d3 ^' G8 m8 C4 i6 Z+ X1 w2 V requestVariant[0].bstrVal = itemStr; & L( I; Q5 I7 Y! z! F' Z4 }$ f1 F- U7 V5 d# o* P* ^
topicStr = SysAllocString((WCHAR *) L"system");4 A0 Z F9 G4 u5 V
VariantInit(&requestVariant[1]); 0 P* l: K |, `$ q
requestVariant[1].vt = VT_BSTR; 8 k r8 |! j2 q7 `1 q requestVariant[1].bstrVal = topicStr;6 G5 k6 G# P; [* \/ a* S
4 ~. H( S8 R4 t. M// Set the DISPPARAMS structure that holds the variant.: I& p( e c, r4 o. U$ y
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dp2.rgvarg = requestVariant; ) V* V: ^& k t) a/ M. A: g dp2.cArgs = 2;# O7 `7 Z5 r" G- y: ]# Z
dp2.rgdispidNamedArgs = NULL;7 z) F$ ~/ V( r2 Z- _6 _
dp2.cNamedArgs = 0; % `! [, w1 H6 A! z 1 H5 X) x# m4 J, F. |7 F1 R var.vt = VT_EMPTY;+ a) H, A* w4 ~3 j