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:/ V9 e. e! c g! U% h$ H/ ^6 b
Name = (WCHAR *) L"Poke"; . g$ \! S4 I$ Q) X $ }& ^/ A3 ~9 _5 q i- H8 w hr = m_pDisp->GetIDsOfNames (0 ^/ t1 p& J7 y2 M
IID_NULL, // reserved4 t. N; g& }: U* C3 \
&Name, // Array of names to get IDs for, u/ M: W, |- ?" R& H* g: Q- H+ t
1, // # of names in the array: @- w2 ^9 B# A7 m7 q/ Q
LOCALE_SYSTEM_DEFAULT, // System locale4 f" V' L+ {+ Q7 k
&pokeID); // Array of IDs to fill on output+ b5 X$ D$ v5 Y2 P- ]- b1 t# T6 n
/ }8 f; F! }5 B9 w" G0 X9 y6 e$ } if (hr) : N) A, C! c1 A, F) m {) h2 i" u3 }: Z4 d% ~1 y
MessageBox ("Get Poke Unsuccessful"); 0 u$ u4 S6 _+ {, o6 A# G: ?0 U return; 3 r+ X ^5 W0 _2 f/ R+ n }, L5 U3 I. G8 F6 L) X7 }2 w4 m5 v1 L
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/**************************传递数据给extend**************************************/ ; |6 C+ w( D. w% I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 N b: ]8 t2 y
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valueStr = SysAllocString((WCHAR *) L"1232");/ R- ~ w; S! h' Z0 n w
VariantInit(&pokeVariant[0]); & ^& g) K3 l$ ~6 x pokeVariant[0].vt = VT_BSTR; $ G7 O. D8 h; V' M5 B/ N pokeVariant[0].bstrVal = valueStr;% f u* U' C# r/ D- d& T
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ~6 z5 @2 N+ \6 X. A
VariantInit(&pokeVariant[1]); 3 w. r3 n- ]1 l/ X8 @2 z/ V pokeVariant[1].vt = VT_BSTR; ! x5 v1 n( y& W6 | pokeVariant[1].bstrVal = itemStr; 9 Z! U7 G* ?8 {& J( ?' c# F5 u0 r8 V" h' P
topicStr = SysAllocString((WCHAR *) L"system");, _: a6 r- V6 o9 H& [: G
VariantInit(&pokeVariant[2]); \+ M" V8 y! O. v+ b/ C pokeVariant[2].vt = VT_BSTR; " p* {" I; D. b* a: x K pokeVariant[2].bstrVal = topicStr;. r- b9 t! o1 d/ E9 c: F
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// Set the DISPPARAMS structure that holds the variant.% v' f+ b% G E+ A/ x" S
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dp.rgvarg = pokeVariant; + b- Y2 N) }- P& k3 _3 }: k4 b) P dp.cArgs = 3;; O2 m/ a& P+ v# ]% L: B, \
dp.rgdispidNamedArgs = NULL; c# K M1 T% O1 a2 ~
dp.cNamedArgs = 0;5 I3 W8 F- ]- w! E i n! O
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// Call IDispatch::Invoke()$ x0 Y1 U9 s9 S# n; u8 i
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hr = m_pDisp->Invoke(+ Z4 ^2 e0 d3 \1 A# h
pokeID,$ B) N& J3 h& s; o
IID_NULL,. p6 T7 \/ @: Z; E1 ?) n4 U
LOCALE_SYSTEM_DEFAULT,6 \+ G2 D. |( O' F2 H* g2 w' Y( c
DISPATCH_METHOD,0 ^/ o% k0 e6 u+ b
&dp,3 h) C6 p7 R$ j' e4 c; L
NULL, * Z7 y8 [' R, Z9 z/ O$ ?) f &ei, * O9 r5 J) \' V# f7 v$ n% ^ &uiErr); " d; W, v2 w0 j2 G7 Y$ u2 w + K7 r$ S9 i! `$ |1 K1 J! g6 R, [ SysFreeString(topicStr); , X. R1 N/ `6 E8 \0 l( x6 c& H SysFreeString(itemStr); " B1 {5 O. b) E# F( H' y, C) _ SysFreeString(valueStr);1 h# H& E+ p* w' d# ~: M4 K' F
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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???$ V5 S2 X) N0 z$ g
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????3 F% c! |: ^" ^( `8 E1 l* G) h( b
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* _: K+ N$ P: Q+ j) t+ Y2.这是request的程序 ; ]5 F I8 e' L$ m3 h& g// Request a value from Extend; n- D7 l+ U- s% [
// + |; k6 v8 M8 r1 Q/ G) H// Initialize the variant that will hold the BSTR. Set the variant's1 N. I7 x) F# W7 w: t% B+ ^
// type flag to indicate the fact that this variant holds a BSTR. Place the - ~- a6 _- K7 j6 |9 f// BSTR into the variant structure.) S6 c- V3 p/ b5 p% e
- P/ G% V8 q4 W2 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* C1 Z; [# X. {. m
9 i R4 w1 Z1 P; [! p) b3 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- N( o l3 P3 Q5 }6 c/ |7 x
VariantInit(&requestVariant[0]); * G4 ?; M2 d) z" t0 X requestVariant[0].vt = VT_BSTR; " g3 c% e; I" @* k# B" D& S% P0 p requestVariant[0].bstrVal = itemStr;" k6 T [$ v0 ~
" l( B; g: D! p( z( K9 J topicStr = SysAllocString((WCHAR *) L"system");8 Q8 D0 M) K: j: Y# ~, e' q
VariantInit(&requestVariant[1]); / v2 L$ l/ Y) G1 A" R8 i
requestVariant[1].vt = VT_BSTR; / G: I+ k- E% g, d# v requestVariant[1].bstrVal = topicStr; $ g( O3 x: i, ?7 Q % m& L+ N- t# B' _// Set the DISPPARAMS structure that holds the variant.5 y, z( L# {" F8 {6 h' E3 ^
' X8 f M. E5 r0 h& p( r* v4 L2 S: S dp2.rgvarg = requestVariant;4 u7 D7 b- j4 i& Q8 W
dp2.cArgs = 2;1 x* [( d% d/ \( M. l* `
dp2.rgdispidNamedArgs = NULL; ( e" e& h; N" f dp2.cNamedArgs = 0; + z* j: Y' }" M( c0 E- x5 Z' X 2 G' p9 \- z. ]$ M2 a$ C' A var.vt = VT_EMPTY; 1 ^6 F B, Q, E! n! G' A) p, F0 I% b- \: d( K0 g
// Call IDispatch::Invoke() + i& ~8 {; e, I' K6 {) ~- G7 e * E. b5 u2 H- f' N hr = m_pDisp->Invoke( ; ?3 T. |: M3 L% [ requestID, - C$ j1 u$ r/ ~0 \% H. Q IID_NULL, : @: ?" |: z* [ e4 k b7 |, }6 P. | LOCALE_SYSTEM_DEFAULT,6 R8 J, M+ y9 r# P( A
DISPATCH_METHOD, . Z% i- W% l" i% B& U &dp2,5 i* K2 v2 s. J3 w
&var,) ~/ N; {% `! L7 B% A. S$ [( x5 t$ B& l
&ei, * L- ~1 u* ~; ?. ~9 L/ s &uiErr);: n" S( m- E# v' K! @' d7 m
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SysFreeString(topicStr);: h% m i! J0 l& H' D ^/ {
SysFreeString(itemStr); " A! o7 q% L2 n, q+ |请问该程序是获得extend里面的哪个值? 5 Y) x. C( Z( B& t, d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????