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 y/ }/ r% q- T' L5 cName = (WCHAR *) L"Poke";8 I1 s, p0 l+ g. c E
! `' h7 v( c1 D" f hr = m_pDisp->GetIDsOfNames (& E/ D( B5 R. W6 }$ x
IID_NULL, // reserved & {5 v; \" W( Z5 i0 H" K# w' J5 b A &Name, // Array of names to get IDs for / P! |8 H. J2 g, j 1, // # of names in the array 8 ^. I i0 ]2 g* O LOCALE_SYSTEM_DEFAULT, // System locale S6 f/ B2 u; C0 t( Y &pokeID); // Array of IDs to fill on output - w8 \' t- C" {/ `' S ^ # i) R$ y0 L/ ]! D5 j" }/ m
if (hr) % C. G: }0 h' z j {7 x/ `9 N, H; [" H% `
MessageBox ("Get Poke Unsuccessful"); & z Q& X6 t$ t- N return; ) U" V6 a5 k! K% ^4 g, d/ r3 F } p. V# F" e% r) K, K; }9 M ( h. ~1 }" b2 }) r/**************************传递数据给extend**************************************/6 j6 [ M0 s3 d: |* i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 U: W' p: h) o 8 M. ]: J& \% m) \2 y( a5 l" c" f
valueStr = SysAllocString((WCHAR *) L"1232"); ! g! P: w, \% l6 d VariantInit(&pokeVariant[0]); 1 _7 I2 f* t3 z- B5 O- q) m+ s% _% M
pokeVariant[0].vt = VT_BSTR; K& P1 b1 s* Q- _$ f
pokeVariant[0].bstrVal = valueStr;1 |0 o, l7 E5 M2 i6 F
4 L. @: S& T- c" Z7 |. P' e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% e [/ d" L% A8 B1 U* p* ]
VariantInit(&pokeVariant[1]); ! o; U9 l6 q$ P9 a$ v! H
pokeVariant[1].vt = VT_BSTR; . f( I1 S& [8 B! p7 Y! A pokeVariant[1].bstrVal = itemStr; & P- o! }- Y- S5 [6 A' s* I5 C! ~5 ~. y
topicStr = SysAllocString((WCHAR *) L"system"); R( q2 U: A2 z0 x* }& @ VariantInit(&pokeVariant[2]); . _1 v! J/ u( m. d8 r2 { pokeVariant[2].vt = VT_BSTR; $ R4 b' P8 u( Z1 Q. R! r0 B pokeVariant[2].bstrVal = topicStr; , S+ H9 z5 _4 c3 g/ Q7 W8 t " p/ d. S" ? W d9 `// Set the DISPPARAMS structure that holds the variant. - L4 L7 }6 P" A. q6 i! S w; b 0 Y; G! J. `, p dp.rgvarg = pokeVariant;# U; W; ^4 ?; y' f, T7 z
dp.cArgs = 3; 7 v2 B& E$ g) R7 w: H dp.rgdispidNamedArgs = NULL;9 E" G( S$ {# f' k8 e4 B
dp.cNamedArgs = 0;7 ~* c/ S; t3 I4 j! }+ P
* L+ n% X$ v/ Q9 P! ^
// Call IDispatch::Invoke() / |+ }0 o2 _5 J, I2 h 1 [; z. h" Q' W% C( `* i- w hr = m_pDisp->Invoke() t, E' {* y* u" P9 [' ?- Q
pokeID, 8 z! p+ I5 \* l8 O+ d+ `2 A IID_NULL, & a( O4 W- D* \- I* W7 a: l LOCALE_SYSTEM_DEFAULT,9 l! ~# {! C7 P, H+ d1 E
DISPATCH_METHOD,+ g3 Z5 h" C. U& w/ k; `
&dp,) m9 }6 v* }! l! ?" m: }) S) o
NULL, 1 G X$ o2 y. U( c2 g1 ^! r9 C$ b &ei, 4 ]5 p9 @9 U4 X8 G &uiErr); ) K" Q8 q* n. a8 [& o* \ 0 u8 w! F8 U G: K( S! ^: D1 g SysFreeString(topicStr);& b n) F! K6 ?4 D$ ] l
SysFreeString(itemStr);% Z/ _6 o- z6 i3 L$ b
SysFreeString(valueStr); 5 J. N+ Q# C# q' U " n( J6 U# i% 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???/ l8 h4 C% R# R- t6 X/ e8 M
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????0 m$ S% Q6 C, O) L+ ~
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2.这是request的程序; w+ T! r4 i; H: ]
// Request a value from Extend % ~4 B s/ O7 }, B& A) P/ I// 2 \0 f9 O% e1 i# ^" C% c# R$ s5 r. ]4 Z// Initialize the variant that will hold the BSTR. Set the variant's' v5 r7 E0 }6 _4 H* K$ v
// type flag to indicate the fact that this variant holds a BSTR. Place the . k6 _% q2 K: p( O1 a// BSTR into the variant structure.% R" F0 v& k k% v
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 v: p8 n) Q9 r* G0 @2 O9 P C % c; o+ ^5 _9 D$ }3 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " b; \- t, O% q( @ VariantInit(&requestVariant[0]); 3 w+ E& v4 M3 w5 w requestVariant[0].vt = VT_BSTR; ) \7 x( U" V: {) M7 Q# @ requestVariant[0].bstrVal = itemStr; 5 j* W( Q3 y7 x2 q, }1 s7 U9 Y3 C2 o7 |% \, M6 [6 e
topicStr = SysAllocString((WCHAR *) L"system");) w& Q1 c3 F! I- d
VariantInit(&requestVariant[1]); ) A0 n B* W: a. Q( k requestVariant[1].vt = VT_BSTR; ' E9 K8 T3 G m requestVariant[1].bstrVal = topicStr;; D* H+ G$ O9 n8 y' R
6 l& z4 r9 s1 c& b! v// Set the DISPPARAMS structure that holds the variant.5 R2 f6 A3 `2 X2 s# _; `8 X
& L8 o9 b" W) }$ E* \ dp2.rgvarg = requestVariant;: K a7 o, `2 c# R- v5 u* m9 Q1 V5 ]
dp2.cArgs = 2; - ~4 g/ p. p" O) o, ^0 a# _: s" l1 X dp2.rgdispidNamedArgs = NULL;9 W) t1 W1 \; M; K3 [7 A& d
dp2.cNamedArgs = 0; , [0 \# }' U3 s+ h7 E* |/ S5 G/ e4 c9 R' {3 B, X- K7 M" U! c6 F
var.vt = VT_EMPTY; ; e9 r! d2 H1 s3 q 2 V7 B8 o6 m4 C0 B2 [: B9 X. Z// Call IDispatch::Invoke()9 i7 W' P, ^ }; k6 ^$ ]7 L
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hr = m_pDisp->Invoke(! T" l# `: g* \2 W6 i% Q+ G) U
requestID, ( X! y; G0 X- }( C) {$ l IID_NULL,+ y8 Z2 S4 i% y5 o/ Y
LOCALE_SYSTEM_DEFAULT,0 h- R5 o/ Y- b1 t
DISPATCH_METHOD, . I' w7 O! H. ^9 J( { &dp2, . {1 e# S1 a3 }7 l) Z &var,+ W) r7 e( H5 h' o1 H$ K1 T
&ei, 5 V4 T' [6 `" p/ Q+ D. T: J &uiErr);2 ` D- W* U" ]7 x
' r0 m) I6 j$ F. d SysFreeString(topicStr); 1 r2 l1 O. J, H. D( @3 M, X2 H5 O SysFreeString(itemStr);8 y( L) s0 `# [3 S! T
请问该程序是获得extend里面的哪个值? % _5 N M0 d# q8 N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????