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: 8 g) W l: x1 o. n2 r. `, HName = (WCHAR *) L"Poke";' z/ G, e$ m: T3 ?, P) H$ @3 r
8 d5 M1 i7 A/ ]) D hr = m_pDisp->GetIDsOfNames (1 b4 n* P, k0 g
IID_NULL, // reserved6 h& z- J2 h' W& R! E( I7 G% g
&Name, // Array of names to get IDs for ( e% B4 O1 k6 O& u% h 1, // # of names in the array % ]0 l8 y9 C# X LOCALE_SYSTEM_DEFAULT, // System locale: p. ]0 }: G% x) T+ r
&pokeID); // Array of IDs to fill on output / X1 w0 B4 n# w g% U* ^* \ & w$ `/ u) a! W if (hr); V9 b2 v8 G9 c$ \
{ 5 v" d, X' h3 s* s# r% W! _" J- n9 N MessageBox ("Get Poke Unsuccessful"); 2 F6 f# X& r9 a* k1 F: l# b) L return; : A! U q) G9 A A. U( O3 e9 Z }2 W0 ]: y, e0 y, W |, f
. e* c( t) U. ^6 O& G. `( k6 p/**************************传递数据给extend**************************************/ * o. B; o: Z4 c" I* c3 ^5 t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - f2 s# \6 @, v) E7 _ 3 V+ Z2 ~% t6 |! N$ d valueStr = SysAllocString((WCHAR *) L"1232");; m* Z* X4 W% i* ?: R! G
VariantInit(&pokeVariant[0]); 6 s! a( c, p0 j% F* J pokeVariant[0].vt = VT_BSTR; 7 `1 e2 g6 n# M! t3 W$ h# n pokeVariant[0].bstrVal = valueStr; + X- _* t# F9 \" Y- Y/ R4 O) j0 D% p 7 I' Q- M0 ?% h( }! D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " b) Z0 [3 [; L4 t; Y' x6 v VariantInit(&pokeVariant[1]); 2 v! H/ N. P4 e6 H8 C$ @( L pokeVariant[1].vt = VT_BSTR;& y* \9 j9 ]9 K/ o( m& _! Q
pokeVariant[1].bstrVal = itemStr; : E1 ]) b0 ~7 g1 p6 K4 J , [' j) x, I# w* [9 w topicStr = SysAllocString((WCHAR *) L"system"); $ ]3 r+ S6 i1 G/ D( c( g# U+ { VariantInit(&pokeVariant[2]); ( i( y4 C: Q+ w+ Y% Q$ Z1 c+ `
pokeVariant[2].vt = VT_BSTR;) p+ u" m6 G2 X3 d- M
pokeVariant[2].bstrVal = topicStr; . T* E2 }. W' z1 p 6 ]( J* l: h' E5 E Q// Set the DISPPARAMS structure that holds the variant. 0 }/ x: T2 V5 h( y) w6 C4 [, C1 r% d5 l) w. s
dp.rgvarg = pokeVariant; 3 ^& }' l) G/ [0 ~, Y dp.cArgs = 3; " W% P; _) q E. Y! N$ H dp.rgdispidNamedArgs = NULL; % ?; L2 I6 R- |; g9 R$ | dp.cNamedArgs = 0; # ^+ K. ~' X& I! l% y* z/ W0 W6 g# [$ l5 j
// Call IDispatch::Invoke() ) B( G% \9 \- E8 v) t- g% u ; I- r6 a! v" C& C. ^4 D+ d3 p hr = m_pDisp->Invoke( / f4 A4 k m& A. L/ Z pokeID,! C2 D4 O* n* W& E
IID_NULL,, P: K! c: x$ b- i
LOCALE_SYSTEM_DEFAULT,' u3 [/ r3 q1 t0 z/ j
DISPATCH_METHOD, 9 k8 d+ B/ G- ~. _* H &dp,+ E) i L) i. Z1 |8 F
NULL,/ x/ J6 n) u5 e/ J( g
&ei,0 b; I8 d" ?+ a. f: R1 ^% Y& J
&uiErr);9 U- k- [- y0 ~
+ ?5 h; R3 Q6 I7 ?- e% Y6 s SysFreeString(topicStr);' C, g) f8 G' F( u; `& T$ ^
SysFreeString(itemStr);" \6 i4 j0 s4 M) ^% v) Y# U1 f! Y" c
SysFreeString(valueStr); , c, s& ]% J# i9 e * Q! D$ ?6 E V# }3 z' ?. z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???! V$ j4 s+ X: s, P! J ]" o2 b- Y
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????" M! ^- o* y: y/ N
' w$ H6 t' R6 x 0 q3 i# T$ v" Z. ^2.这是request的程序 " N% |* S4 R) G# H( E7 s' o. u6 M9 ]// Request a value from Extend' G( R4 i E' y( _; G
// " M# H$ \4 h: N4 p w// Initialize the variant that will hold the BSTR. Set the variant's " G: j- @- q$ C9 U// type flag to indicate the fact that this variant holds a BSTR. Place the3 M- O2 y2 {3 r
// BSTR into the variant structure.! s& z6 Q3 j0 _1 K7 ~ E8 z
1 d- _1 B, i _& R: @
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' d; R! T* S4 M* P: }" V3 B
5 v0 d! T/ L, P" Z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 }8 D& I/ u( { i% a, E5 o VariantInit(&requestVariant[0]); + h; B) u* l' H) A! L' N+ C requestVariant[0].vt = VT_BSTR;& {: ^: @- W% e8 w0 ?0 Z
requestVariant[0].bstrVal = itemStr;3 j1 k9 v/ n X; j
, l4 ~0 T% ]7 a7 ~. T1 G# J& ], D3 T topicStr = SysAllocString((WCHAR *) L"system"); 4 ?( ?' P1 H6 Z VariantInit(&requestVariant[1]); : o8 |/ L$ e* X: G& I9 n. g requestVariant[1].vt = VT_BSTR;6 U$ ], l$ Q% ]4 s$ [' X/ @
requestVariant[1].bstrVal = topicStr; : }4 h% u9 |1 e8 K5 K4 h/ Y9 S6 O4 U9 k9 R, m+ f9 O) r1 M
// Set the DISPPARAMS structure that holds the variant.0 p: R( a8 c+ b4 p" @8 f
5 M& q/ N/ N( ?! @4 H5 p dp2.rgvarg = requestVariant; 7 J0 a. r+ m5 Z% j7 R& ]# y dp2.cArgs = 2;( k7 U$ _" x" a- }+ {9 b: s6 y% p
dp2.rgdispidNamedArgs = NULL; + M7 x- l; l; C! s( H T dp2.cNamedArgs = 0;$ ]' w, b& o' l7 X% I
; {3 i; w7 C X8 d6 k) ~ var.vt = VT_EMPTY; 2 O0 B0 C' c0 |/ Y+ Y2 j8 I! m 5 q* H# J# M" w// Call IDispatch::Invoke() 2 T: ~7 Z- y/ C2 ?" u3 }( {, [2 ]0 H4 a
hr = m_pDisp->Invoke( : _+ N9 {0 |8 u( u0 W) u }" H requestID,- j; C- o: n ?
IID_NULL, 7 p9 o4 X* T+ `% L% e LOCALE_SYSTEM_DEFAULT, ' f) x* n N8 f, v2 m9 d DISPATCH_METHOD,- A# D. _( {/ w {# E4 P
&dp2, d2 Z7 d6 w& `) {! Q0 M; x# {8 l &var," e- _) b. a6 R4 {) [6 T7 K" I
&ei,- v( O2 h2 M x+ E
&uiErr);/ g" Y4 X$ y; b( S6 B
9 X% o* ]3 J8 @9 \
SysFreeString(topicStr); & H5 k% d1 m% u$ |% H; w: H SysFreeString(itemStr); ~, T, w5 w2 `7 e; i; w
请问该程序是获得extend里面的哪个值? ! j" y6 d+ ]' U4 ^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????