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 O4 }2 I2 _$ T9 ?8 F0 R& H6 G; w+ JName = (WCHAR *) L"Poke"; 3 N- Q# y) H( f# z # o. v b+ |- i+ L hr = m_pDisp->GetIDsOfNames (3 @3 T; A. E/ c. o% T* G
IID_NULL, // reserved: u% b1 V' s1 Z7 i
&Name, // Array of names to get IDs for + f. V2 x5 ^ [1 v9 n 1, // # of names in the array. B+ k3 P. k' Y. ^3 H* j
LOCALE_SYSTEM_DEFAULT, // System locale# V9 w4 x# N% n% A: n _
&pokeID); // Array of IDs to fill on output. N3 \) d2 E7 i: Z) X' q7 Y
8 f) W- t7 w* k5 `$ D if (hr) * ?4 v: o7 Y4 F% V. m {! t% {9 t3 I- I# E- s/ [5 V+ y
MessageBox ("Get Poke Unsuccessful");( J+ Z3 f" R: N2 F7 a7 r3 b$ f
return; 1 A, A) c4 j8 k) W }6 Z) X1 m( I q; U
- [! P* I! Z( v- R# ^
/**************************传递数据给extend**************************************/" t/ n& Q/ z& J+ {" Y9 f0 ], P5 X; Z. T
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, D, h' m1 h: i7 I
, ]( x6 m& B" L$ E4 R+ C
valueStr = SysAllocString((WCHAR *) L"1232");9 Y9 H; C; V- i( ]
VariantInit(&pokeVariant[0]); # @: b0 z* b( y8 Q* [ pokeVariant[0].vt = VT_BSTR; & @! x m+ [, V) A9 Q( e pokeVariant[0].bstrVal = valueStr; 4 N6 _2 n( t. ]1 ]* X5 P: u6 d _# Y& E+ W/ v& P& C$ {* ~) B
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & {( _$ }9 s G VariantInit(&pokeVariant[1]); ( h k7 f* J* a' V
pokeVariant[1].vt = VT_BSTR; 1 `5 c6 }2 C1 Y- v' }4 O pokeVariant[1].bstrVal = itemStr; 0 p$ U- V. U1 ?% y; T: w3 v P# V x, \% J% {4 k A topicStr = SysAllocString((WCHAR *) L"system");0 U5 L: ]. w; i4 @
VariantInit(&pokeVariant[2]); 2 p. ^. u# o! V
pokeVariant[2].vt = VT_BSTR; 5 C4 t* B3 B- x% a pokeVariant[2].bstrVal = topicStr;. J2 x4 I" Z1 J
2 ~5 Y; R& j9 |% H7 O# D+ v# r
// Set the DISPPARAMS structure that holds the variant., O/ `4 O$ \: Z" M' h1 j
4 L* G6 W- d7 x dp.rgvarg = pokeVariant;; J: \ t1 M$ }% I8 D+ O1 J C, _
dp.cArgs = 3;* p) b/ L5 y4 f8 e- d# R
dp.rgdispidNamedArgs = NULL; 0 y, n" e. ?* Y8 r8 h' R dp.cNamedArgs = 0; 8 p I$ k6 c* s3 ~5 r! _; t" z+ D3 Y' P; C& l
// Call IDispatch::Invoke()' f& m" \& V' D3 B
) s# [! ?" R; J$ j* i& v9 R3 f
hr = m_pDisp->Invoke( ; L5 i Z' p2 P& v4 ]2 F pokeID,/ @9 `7 m |& |5 K) [
IID_NULL, $ f: q( {8 p7 h" k LOCALE_SYSTEM_DEFAULT, ; D+ G5 N' u9 b7 J2 m0 d2 |! c DISPATCH_METHOD, 6 x( T1 F2 a' {" s! S( N3 g9 ^8 l &dp,7 D' r0 r* |2 }: c- z4 \. M
NULL, 9 [+ b2 u6 t' \. J& M* G K4 k" {" [ &ei,9 g F& M$ \, w" \5 {$ W
&uiErr);, X6 ^$ R0 R& y' R/ ?2 D3 p4 J
; l$ N, |" g! w0 y& E& ?
SysFreeString(topicStr);8 _% b# r- @2 q6 T; |/ |% ~8 B2 y
SysFreeString(itemStr); , l# l. r& X. T; q2 \, H, k: q SysFreeString(valueStr);& S8 x/ r7 B- S! T
# j* b# D. c. L, c. ?, \/ c& ?+ F
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??? & X! Y+ |" N. b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????6 L" k+ w2 O. \; b/ b. W
1 q4 `2 _: z; L9 a: @& v- X1 E& ^3 ]- B" h n% e+ Q Y8 e
2.这是request的程序' ^2 t$ o/ ?7 n! C2 j4 ?
// Request a value from Extend5 U% N8 h5 f! d3 E
// 5 n* p; D7 [7 k* B8 I- a' H. R// Initialize the variant that will hold the BSTR. Set the variant's 3 P& r+ t& j9 t6 x// type flag to indicate the fact that this variant holds a BSTR. Place the 1 g, j- j# N# A. e2 m* g// BSTR into the variant structure.' @7 A+ i% X5 }, p8 Y5 k
; ~. ~% z; P: V; j" E3 y- x }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 ?3 K0 i$ U/ S! v v# H( | 4 T2 \* A4 F9 h" p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) @9 {7 E1 B7 ?( T3 }; i& i/ p/ o VariantInit(&requestVariant[0]); 3 m! j, \- E7 d! T) d& I6 D requestVariant[0].vt = VT_BSTR;6 U3 ~( j% {4 x5 {& Z
requestVariant[0].bstrVal = itemStr; 1 I. y5 i6 [% @% @% k" L8 `% T7 Q1 V/ R5 D% s% M& f' `: {& U: x3 d
topicStr = SysAllocString((WCHAR *) L"system");. m! i: u$ V8 b
VariantInit(&requestVariant[1]); 0 Y2 @' @/ V2 K1 A3 n requestVariant[1].vt = VT_BSTR;8 z$ ~1 j. K- I* `! t9 R
requestVariant[1].bstrVal = topicStr; 7 ]+ q E! [! I) U) e( L 3 e% z1 N4 n- I// Set the DISPPARAMS structure that holds the variant.) ~! f& _( L7 l# F0 C5 k9 @
3 c% S$ S; v* T: m: {. F
dp2.rgvarg = requestVariant;, L- Q) O& e8 O! D5 X+ M. i
dp2.cArgs = 2; 3 o1 x1 A* Z7 e: |3 _- a* t dp2.rgdispidNamedArgs = NULL;9 @! R2 C8 H2 r
dp2.cNamedArgs = 0;2 w" P; Q$ o9 I, `3 @9 x
j$ |2 b! E2 W
var.vt = VT_EMPTY; % _- X L0 G2 E' n ' Y/ F1 I7 S* n P0 F9 a" @// Call IDispatch::Invoke() N" X- d+ f: D* s2 C7 U3 J, Y$ |7 ?! v ?0 m* A& C
hr = m_pDisp->Invoke( 3 Y! F4 f" A( u requestID, h4 o0 l- J2 J" P0 o IID_NULL, 0 [* P- V2 `# f LOCALE_SYSTEM_DEFAULT, 8 z* P: U5 g! |' b8 h DISPATCH_METHOD, 4 V: K! y0 g6 K" V8 o &dp2, 3 F c& f0 C, _/ ] &var,5 Q- m3 P$ H5 m- q
&ei,$ a9 {) [ b; D! `
&uiErr);' ~5 |6 j5 }/ B6 Y8 K+ c. w7 P