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:) {* ] ~6 |7 W, D: u ^5 ]. C" |
Name = (WCHAR *) L"Poke";7 w3 ~, j3 S, {( n- o
) b- s. R7 z# B' }# e hr = m_pDisp->GetIDsOfNames ( ! c; G5 K1 G5 n E6 j' f5 O% _6 @5 g IID_NULL, // reserved+ g" X/ D8 u) d# f+ C6 w
&Name, // Array of names to get IDs for+ J+ Z. W$ Q: k( _" T: c9 Y
1, // # of names in the array+ {6 W! F P: I) Q' ~+ s5 ~5 V
LOCALE_SYSTEM_DEFAULT, // System locale' d. n5 F! E& B1 v
&pokeID); // Array of IDs to fill on output+ Y8 F! H0 c+ O2 R: R% G
' q% E) s( ], m K if (hr) $ z6 m: D5 k. g9 e' K5 ]+ s$ y+ S {% V+ E3 r9 ?8 x- H
MessageBox ("Get Poke Unsuccessful");* f6 M9 n# H i/ X2 O9 E
return;: y9 M J0 d' k6 V! z
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/**************************传递数据给extend**************************************/* C. |/ k' }) |, D- y: n- C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( w# v* J' U4 n8 a0 W 3 |8 c! |& W' n9 W valueStr = SysAllocString((WCHAR *) L"1232"); # H% J* p! |6 | VariantInit(&pokeVariant[0]); 7 D) ]9 b+ {- I" \) ^ pokeVariant[0].vt = VT_BSTR;, U* K/ ~9 F5 e% N: w
pokeVariant[0].bstrVal = valueStr; ) b1 s" D Z/ y ^4 r& \8 @ * x4 {0 j$ I. f0 d/ ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * U' J. d# v. r/ h VariantInit(&pokeVariant[1]); 8 n! t5 M2 h9 f7 W- t3 ~: T pokeVariant[1].vt = VT_BSTR; $ t: S9 V( E5 t6 J pokeVariant[1].bstrVal = itemStr; 8 `7 [! z; b9 x% Y, j5 r - M' v+ }6 |4 `% f ]& K9 h topicStr = SysAllocString((WCHAR *) L"system");0 j* c4 V" F& K
VariantInit(&pokeVariant[2]); * k! W3 ?8 I6 n+ L9 t* x pokeVariant[2].vt = VT_BSTR;: B X' B* u7 n
pokeVariant[2].bstrVal = topicStr;: `: q6 `& H8 e8 v; U+ Q% V
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// Set the DISPPARAMS structure that holds the variant. ( l/ u+ r4 `% U& n" f2 T4 Q! x % T: g: |, G/ j2 Q2 i9 V dp.rgvarg = pokeVariant; 5 I! A5 N2 Y" G S' ` dp.cArgs = 3; 3 ]/ h% e9 `0 M$ J0 z0 e; m% B dp.rgdispidNamedArgs = NULL;1 e' U8 E5 F: F
dp.cNamedArgs = 0; 7 h# R$ V/ \5 `! N/ J9 K. }. U; e! n/ o4 d( }
// Call IDispatch::Invoke() . f8 c2 j6 r2 J4 g8 x ( ~4 G/ I' t6 U" V' z9 b* p: N hr = m_pDisp->Invoke(' O% Q4 E9 k/ ?
pokeID, $ O, X2 z; u# j j4 t: k IID_NULL, : I5 _6 Z. _ R1 q. _ LOCALE_SYSTEM_DEFAULT,& O( L8 B! I6 E- U+ s# k
DISPATCH_METHOD,& w6 a' d! R, d D- m' g9 x O( ?
&dp, * J/ w$ O5 E) ]. V NULL, 5 S% T( A [3 P2 T' S2 V1 h &ei, 2 d( x+ B3 C6 _+ B- Z7 `; V8 Z &uiErr); * E6 h; R! ]$ d/ J- j3 G& O* N $ _8 j8 m6 T, H3 G* {% G! n SysFreeString(topicStr);" v# ]9 s7 c4 u7 u
SysFreeString(itemStr); 3 m0 d, ?+ R+ @- b SysFreeString(valueStr); $ O4 B( V5 A9 ^+ m- ~. V& R ) V. }0 d6 G, h4 Q! v9 n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??? : A* m, f6 x/ R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???? * H% j) R; T. F- t; L3 A* k% G; Q0 {
) h% o5 H( @0 y7 O# t9 T7 M+ e2.这是request的程序 + m3 f, A4 M# C {3 q c// Request a value from Extend + o" h* a8 F {1 w1 n3 ~//9 W9 L& a; l' o# U, W
// Initialize the variant that will hold the BSTR. Set the variant's ( g! ~: E" u5 q// type flag to indicate the fact that this variant holds a BSTR. Place the W% ~, w( _7 W5 b/ @8 u// BSTR into the variant structure.% O% W+ ^; P0 u, L5 N0 g
. ]* W0 l# T9 v" Q8 a* z* Z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % J3 y0 q* x* I' ]9 R, Z! K/ a$ @0 r 9 L5 _( s' A, C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! d. e& W% `6 y4 g& Z VariantInit(&requestVariant[0]); : ~% t4 J/ ]: p0 C0 a7 T0 | requestVariant[0].vt = VT_BSTR;( I# H1 r. W2 }9 |! m
requestVariant[0].bstrVal = itemStr;5 T& a# ?' y5 R# m! M( z0 G2 g
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topicStr = SysAllocString((WCHAR *) L"system"); . f- r( q0 I3 T3 k& Y VariantInit(&requestVariant[1]); . i( y) {3 L7 h! k
requestVariant[1].vt = VT_BSTR;' H: z9 Z% @2 H& g2 A
requestVariant[1].bstrVal = topicStr;. g( P# e$ U$ @# z9 w
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// Set the DISPPARAMS structure that holds the variant.7 X2 L) y* |" a9 e3 f* n8 @
+ Y1 g t9 H5 `8 K
dp2.rgvarg = requestVariant; 0 z+ ]3 C# G2 `: o2 { dp2.cArgs = 2; # W( ]( I9 E& u3 M$ H; n0 s" s dp2.rgdispidNamedArgs = NULL;8 U1 M8 ^3 R1 s M; s3 t' y. N
dp2.cNamedArgs = 0;" g l4 v3 X/ I* L5 d, y# Y
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var.vt = VT_EMPTY; & b- h1 N5 I1 s & J( W6 e7 N7 v/ L* h9 K// Call IDispatch::Invoke()& L [) O! `; K6 p& W8 n
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hr = m_pDisp->Invoke(2 l, z$ l. D9 g1 k- l# f+ H1 h O
requestID,2 f% W ^7 @' n2 S/ J
IID_NULL, 3 `+ U! E; f' s- u LOCALE_SYSTEM_DEFAULT,) w+ C' r' u! L
DISPATCH_METHOD, 8 R: s' v+ ?, m, ~ &dp2,+ I' M n) G }# L1 u
&var, ; X* a( y/ n. C &ei, ' F9 `/ u/ L% k7 ?4 J- j& q &uiErr);* ]% E/ I, {3 V# m) M5 s
4 Y \" M3 | t& e, _ SysFreeString(topicStr); - r/ Z1 z. ]0 L5 C4 r1 S5 P SysFreeString(itemStr);7 M* ?; h& u4 P8 Z* F: y
请问该程序是获得extend里面的哪个值?- ]8 Q6 ~% Y# q$ o9 V
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????