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: " c$ ]! e5 ]8 x( E1 h. {$ CName = (WCHAR *) L"Poke";% ^: v" R6 P; y% }0 p, d l
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hr = m_pDisp->GetIDsOfNames ( 7 d+ C; T2 w! n IID_NULL, // reserved 2 c. X Y1 D5 n" U1 |% M" N &Name, // Array of names to get IDs for . d \1 C! C9 y9 f, H 1, // # of names in the array : u" P/ G5 N2 ~4 R LOCALE_SYSTEM_DEFAULT, // System locale 6 Z3 D& _0 Q$ n7 b5 J &pokeID); // Array of IDs to fill on output; O0 ]0 p/ G; `7 M
8 [# j- P9 g+ d0 n' t4 c; { if (hr) * e& B2 F1 }. C* _! T4 \7 D0 u { - v& ?: A( c7 F! Q$ I5 @4 ?) S, e MessageBox ("Get Poke Unsuccessful"); * A! j! |, S8 J% i" Z d return;: w( Z! ]4 ]& f, g4 l. P' N
} ; W# o( s2 b6 ?% u# R1 `" S- O6 ?4 H8 q" H7 g: t
/**************************传递数据给extend**************************************/ # W% p0 y' E5 z% a, G" q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : B8 B/ T7 Q; Z- k- n$ ^ % Q/ {" R' e8 I3 ^5 a. u4 h, ?, t2 P
valueStr = SysAllocString((WCHAR *) L"1232");' u* F g7 M8 \0 O6 J
VariantInit(&pokeVariant[0]); . Q0 g& }( p# Q% Y3 l9 a
pokeVariant[0].vt = VT_BSTR;1 g6 d% V7 y) k" X% Q$ J9 r
pokeVariant[0].bstrVal = valueStr; ! `; @9 |/ V M! v/ d# W0 c, z8 g4 M% z! b6 J8 }8 l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 y) r' n9 @' X2 e% o% W F VariantInit(&pokeVariant[1]); 2 \( i% i! n4 {4 |4 w- H pokeVariant[1].vt = VT_BSTR; 3 s1 ~) d9 ^4 f! G pokeVariant[1].bstrVal = itemStr;# O- O+ |7 s! ^+ m& M( }
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topicStr = SysAllocString((WCHAR *) L"system");& n, u& Q, C ?9 R* ]. q
VariantInit(&pokeVariant[2]); 0 S- M; Z5 a9 p3 u3 r$ D: O
pokeVariant[2].vt = VT_BSTR; ' t6 I8 W; e- C: h* w3 O; G pokeVariant[2].bstrVal = topicStr;6 x) p/ A7 A1 Y, _' P) u. N
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// Set the DISPPARAMS structure that holds the variant.. G0 o% \2 E9 ^ t/ I5 Z/ ?
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dp.rgvarg = pokeVariant; * G0 v0 Z; V# \5 G4 Y7 F0 v dp.cArgs = 3; 9 a: @( I T+ p) H$ U) @4 ]& M dp.rgdispidNamedArgs = NULL;! U7 p4 o% s) V7 b3 K9 I( G
dp.cNamedArgs = 0; ) [; ~2 W) _2 B/ _$ Y7 B9 B ; k! J% S+ }) V( H A// Call IDispatch::Invoke() , E8 b6 d5 r6 G- M& C ' D& _, M, |( N, ]. R" Z; Y# I hr = m_pDisp->Invoke(% h+ [: x" d* c% u3 Y* l. s! b# a
pokeID,4 V$ p+ r% I+ x8 y; M% z+ Z* j
IID_NULL, / Y0 V1 E" e- t' g- W4 h! Y( y LOCALE_SYSTEM_DEFAULT,; y" W) L- w# J) ?$ U$ z
DISPATCH_METHOD,) p7 w+ g2 U% x6 h; O& i- n; \
&dp, 1 |+ p$ S! r. O NULL, / ]* K* b( Y* z4 i7 x7 p% B &ei,; I4 q* i0 E, A/ l* }% f9 h$ X* E6 s5 M
&uiErr);6 @+ |" [2 j) a( L. l
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SysFreeString(topicStr);5 _& `. I/ p& U& a5 G8 O4 r9 D
SysFreeString(itemStr);, V1 ^# y" X4 j% B& F& d8 f% F
SysFreeString(valueStr); P: X; y' a# S% f/ T- q
7 _& o, M# V( g6 y$ B+ c! f& p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???7 R o+ V: {8 f/ z5 e
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???? ; `# }7 |5 Y; B$ y# O) C, `5 _9 C0 c8 l' L/ p$ n- d
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2.这是request的程序 * a+ k3 _$ a @) r5 f// Request a value from Extend # g; ~$ y+ @. \# G }; I0 G// ; C, N5 C) C7 W$ G u// Initialize the variant that will hold the BSTR. Set the variant's + U2 g' N7 T& S4 v// type flag to indicate the fact that this variant holds a BSTR. Place the , P1 a& k: @6 u' w9 v// BSTR into the variant structure. 4 A+ W, A1 h3 U; J' D/ \7 t( B5 D u! c+ g
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & k" B3 o" R: m5 E' e; ] * t/ k# P( }1 O" L' _3 R- p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " F% k6 z: X; R' U* M. K VariantInit(&requestVariant[0]); % _! E, V+ m# h6 o3 Q! m1 g
requestVariant[0].vt = VT_BSTR;, ]* J6 K. p' t0 X8 ~0 y- i* V
requestVariant[0].bstrVal = itemStr;! j5 E( d [8 c" A% s
0 Y3 a0 w8 D% |" ^% l topicStr = SysAllocString((WCHAR *) L"system");: ^# n" K& [1 n" t3 {* l
VariantInit(&requestVariant[1]); / f2 @6 e1 O) D! Q& Q0 s8 B. @
requestVariant[1].vt = VT_BSTR;. `# z" H/ l1 }* R1 h# L! k
requestVariant[1].bstrVal = topicStr;8 p ^2 N$ p# ]5 Q7 X; W9 c7 A- S
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// Set the DISPPARAMS structure that holds the variant.! r( K: ~, ?/ F! l
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dp2.rgvarg = requestVariant; : `* S, {& q$ i* D" F8 X ? dp2.cArgs = 2;% |" z2 t& }7 F5 U* n
dp2.rgdispidNamedArgs = NULL;' t3 k' V5 w+ y" r
dp2.cNamedArgs = 0; 4 a2 N. h! `" w& k0 h0 N' H! c; L 1 F- ]/ I9 N j( u var.vt = VT_EMPTY; $ H, G5 ` p: T: Q \% H8 h" `6 s7 }6 }# x
// Call IDispatch::Invoke() , ^. ^, N: _( k" T5 y: ?" H+ C5 y) l) L$ o8 d# S, Y
hr = m_pDisp->Invoke(5 b% |/ H- Y+ f' q' n; X0 O
requestID, 7 p, t# o7 l. k0 i IID_NULL,7 V% {+ F6 Q8 G3 V' i: N# z
LOCALE_SYSTEM_DEFAULT," H. G/ w$ @$ L/ _# e
DISPATCH_METHOD,* E# y \" u+ x) D( h
&dp2,8 A) Z( N, G1 X; J3 |! w, N4 a) T
&var,4 Y% C+ ]( T0 B
&ei,6 d U. Y; i! ]1 I) ^$ G
&uiErr); 4 Z4 m! }. m1 y2 ^: J$ {& C, o/ u( r. b& I
SysFreeString(topicStr); . M2 C$ H- R& [! g3 H SysFreeString(itemStr); ) Y A# F: x( Z% q1 f5 N% W6 O请问该程序是获得extend里面的哪个值?& b! g9 ] E' i; V; U
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????