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 e: W7 z6 N7 g
Name = (WCHAR *) L"Poke";" l3 r4 [+ C. v( Y
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hr = m_pDisp->GetIDsOfNames ( 1 s6 ~# p5 R; Q: a, y; E% A IID_NULL, // reserved' H3 G# c/ H; l1 U5 P
&Name, // Array of names to get IDs for : e9 t! V' u$ W, w* ?8 m0 ~5 d 1, // # of names in the array! u( f u* t! h5 T) C) [
LOCALE_SYSTEM_DEFAULT, // System locale " _5 x8 F" o( L+ q* d8 x+ N &pokeID); // Array of IDs to fill on output " Y. Z G: C7 P8 A X' d4 `: s 5 g: D$ y0 _$ o# O% ?/ s+ R" ?
if (hr)) w" W$ H3 A+ ^) C" r7 S$ Q$ Y
{ % \2 Z, P0 {4 n6 l' Q% w MessageBox ("Get Poke Unsuccessful");. [8 a4 G" t% P; y# n8 v1 ~
return; 8 U# p, Q0 Q! {( b# Y# v8 a- b( n% U* j( B } 0 z; D2 `( I9 @! D" S7 D, o* k3 G. }: @( d P+ b3 g6 ~7 p% s
/**************************传递数据给extend**************************************/1 o0 W( M! b' y! {- l- `$ K$ v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) N3 E" d6 @: H, s4 w( H% V
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valueStr = SysAllocString((WCHAR *) L"1232"); : c+ q$ d& ]% ?0 n& ^7 u VariantInit(&pokeVariant[0]); . S8 ]' [5 U* P- e) G4 C/ J; Y( q pokeVariant[0].vt = VT_BSTR; 4 h2 l$ V, |) H% N/ q6 i0 M pokeVariant[0].bstrVal = valueStr; ' M: Y' k% i/ r ! v) E1 b0 n0 B5 e* b! A# g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : s8 g0 d( } i. _ VariantInit(&pokeVariant[1]); {! Y: y" L6 u0 C+ W5 p pokeVariant[1].vt = VT_BSTR; # G& p5 q/ ]' H2 E y1 k5 i1 O% S5 |6 x pokeVariant[1].bstrVal = itemStr;! ~/ n) [7 \3 _, \7 o6 j
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topicStr = SysAllocString((WCHAR *) L"system");$ J+ E9 I8 B; N
VariantInit(&pokeVariant[2]); 4 P2 y. y C1 M pokeVariant[2].vt = VT_BSTR;3 u( q6 D; s4 ~# w* g; l" N0 g
pokeVariant[2].bstrVal = topicStr;" y) F; i# {5 Q
, r. v4 d C: M1 Q// Set the DISPPARAMS structure that holds the variant.3 ?$ z) x- G" J( Y1 O' y# d
2 d/ |' F5 w- @$ O* ~! T dp.rgvarg = pokeVariant; 5 Q3 T! a3 y0 {; \$ H: a8 z! h' @ dp.cArgs = 3; 1 S& y" X6 T" `/ @6 z5 B$ [& o dp.rgdispidNamedArgs = NULL; $ d' t( }/ M; V! z* H dp.cNamedArgs = 0;3 ]/ E' ^- t4 y+ x' B
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// Call IDispatch::Invoke(). I; @+ U4 a. l2 V: v8 O
( |7 v3 T5 |( J0 H9 B( T7 a hr = m_pDisp->Invoke(4 }8 f" s8 H: Q
pokeID, * P- D: H7 I' }: V IID_NULL,, j9 {% ^, s) w A6 E3 }9 o
LOCALE_SYSTEM_DEFAULT, + h: D+ x+ d* P) P8 x% m; ? DISPATCH_METHOD, * L( ?% k' I" ]4 h2 L &dp, I3 E9 `1 [1 B" S- J0 D7 S
NULL, 3 |3 D5 m. G1 K( ~ k &ei,8 m) X5 f; e( b
&uiErr);$ X5 K. l ]( X9 H& M6 a* U
. V4 I2 [; @( H8 A: N/ {+ H SysFreeString(topicStr);" {/ H5 O% _7 j+ B1 N
SysFreeString(itemStr); 3 v. J2 S* l# I2 z2 J6 D SysFreeString(valueStr);# H9 d5 j6 C6 Q* N- Y# t
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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??? 4 Q. }" l7 m4 _. S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 k; r( U/ z% L* a# g8 q/ R: p
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2.这是request的程序7 G( O' L, @! v8 s
// Request a value from Extend7 S+ _4 E# l. ?: Z; Q+ Q- o" P2 @$ ~7 A
//! v9 J' R5 W2 A) O
// Initialize the variant that will hold the BSTR. Set the variant's 3 `% @7 }- \; v5 |// type flag to indicate the fact that this variant holds a BSTR. Place the : D% y. S+ p* s7 N3 [) g// BSTR into the variant structure." r' Z! u1 j5 |8 o
[/ I* y- J, V: ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 u ?1 ]- u' f7 f: v ( [2 z, `" ?# q( U4 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 M& C% K3 |9 T3 l n
VariantInit(&requestVariant[0]); ; v q4 S" U: D) u
requestVariant[0].vt = VT_BSTR;9 A; D* o1 G2 t4 A
requestVariant[0].bstrVal = itemStr;' k( T. u9 }1 w8 V7 [& v9 ]
; h# l- k" W* [+ j! a topicStr = SysAllocString((WCHAR *) L"system"); $ V) p$ A( x/ ?* u3 v I$ H+ T VariantInit(&requestVariant[1]); 8 e8 X% H* _4 e1 `0 q& W requestVariant[1].vt = VT_BSTR; ) h) i/ c' P! C1 | B( x' H0 b ` requestVariant[1].bstrVal = topicStr; % U- N4 ` Z1 G$ g( Y2 y , ?( i; I0 Y M ]// Set the DISPPARAMS structure that holds the variant. 1 X( a/ s& o/ p& e3 @) T3 m; K8 a2 c' Q' }6 x
dp2.rgvarg = requestVariant; 0 B3 N m- X' y) r1 ~ dp2.cArgs = 2;$ l' P& M5 v' G( y0 ^
dp2.rgdispidNamedArgs = NULL; 1 G, D. e7 A" s# E% R, y dp2.cNamedArgs = 0;1 |7 F2 w9 ]+ k% \" T/ a! H