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: ) F3 K/ E; H/ }/ _( bName = (WCHAR *) L"Poke";) N6 ]& l* g' E- Y$ z7 T' |- X
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hr = m_pDisp->GetIDsOfNames (* K, \3 H. u' U- s# T2 }5 Q
IID_NULL, // reserved : r( q! `, ?2 I% k8 m+ `) I &Name, // Array of names to get IDs for 7 |* }$ G9 ~3 G* \ 1, // # of names in the array0 z S- t- E- G g
LOCALE_SYSTEM_DEFAULT, // System locale+ L3 o/ v! b7 R
&pokeID); // Array of IDs to fill on output ( b' Q- y2 e( q& j' t+ N$ r 0 \1 I2 v8 p# W# K- a( d if (hr) h+ \" G! I$ a { 0 A5 `! L4 c) u8 e, M+ o# j MessageBox ("Get Poke Unsuccessful"); . q) h. R$ f3 s7 y6 j6 A5 V6 ? return; : o( m, o& G6 o } 4 G) E. f4 z3 Z% `' ?. A. o I/ k; _0 O, @, P+ z. I
/**************************传递数据给extend**************************************/ $ p4 o1 q" c7 ^2 o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 P4 L$ M6 l( x6 `* g) G
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valueStr = SysAllocString((WCHAR *) L"1232");+ ~/ [- c. G& }+ b# W
VariantInit(&pokeVariant[0]); ( b& c$ L) W7 e5 S1 r; C6 _ pokeVariant[0].vt = VT_BSTR; / A9 y$ M P# l0 z. Q pokeVariant[0].bstrVal = valueStr;6 `) V! Q4 _# f5 D+ i
$ o S9 ^: }: P% W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # c7 A' N+ ]" Z4 Z9 ]8 I$ i5 z: X* l VariantInit(&pokeVariant[1]); 1 A& D$ ^" \9 t* ~" @9 E; v pokeVariant[1].vt = VT_BSTR;7 i. S, H: O3 `4 q* q* Z
pokeVariant[1].bstrVal = itemStr; * F! E5 ^; C+ p* V* V0 U' [' f1 a* E 7 i5 _8 l8 x$ I- s4 j topicStr = SysAllocString((WCHAR *) L"system");* g3 L8 c* C0 G7 P6 S* o. c
VariantInit(&pokeVariant[2]); : H& |8 S; K( X3 g j+ I: d# p1 `
pokeVariant[2].vt = VT_BSTR;9 a6 g4 }0 T. i" m; ~6 H7 A* a
pokeVariant[2].bstrVal = topicStr; 9 v, R( U" \ R/ h) p: J( e ! U9 C6 U# n. O( [# \// Set the DISPPARAMS structure that holds the variant.- r% V# e" m, B( I9 R3 J
' \' X6 C' I* s dp.rgvarg = pokeVariant;7 N0 |& s! x! }$ T" V3 \* T
dp.cArgs = 3; - o# S: v7 D, X dp.rgdispidNamedArgs = NULL;, y, o. b' @' l7 p
dp.cNamedArgs = 0;" }4 a m. c" ^. @8 n; G; \0 ]
2 W* O! L5 ~0 |& v9 ^// Call IDispatch::Invoke() - _$ w2 |7 |4 s8 O1 n2 Y) b 5 S. l6 Y% s- d$ Z hr = m_pDisp->Invoke( , |9 F4 m. W; t! Q; ? pokeID, & x* U5 z0 C, o% S1 E; y p/ N) | IID_NULL, & H% y- L9 y4 A: h LOCALE_SYSTEM_DEFAULT,7 E" F8 C! j5 U: z* l c
DISPATCH_METHOD,1 ]4 R5 g# s' p$ M+ R
&dp,2 ~+ s! Y/ W: G" y$ o
NULL,3 s1 @( Q$ T; S5 ]; [" @' x
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&uiErr); 1 v: G; c) t7 Z2 B: g: R+ p ' w& `! ^7 U4 K' n( z% Q) w SysFreeString(topicStr);; j0 C0 `! Z: N. {# m+ L
SysFreeString(itemStr); 3 K t# w; ]) n7 O: b SysFreeString(valueStr);% x5 G0 e1 I" o& i( V
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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???. Y1 J c" |6 T: ]; V
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????' Z. ?* w% J$ ~$ g4 L
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2.这是request的程序# O; D- s4 S& _$ l9 o
// Request a value from Extend; [' U/ _# n# h
// 2 @, W& V8 Z: b* _ L3 e// Initialize the variant that will hold the BSTR. Set the variant's O' V+ K$ R6 q, m. k6 h
// type flag to indicate the fact that this variant holds a BSTR. Place the8 c: u6 z5 }# z
// BSTR into the variant structure. 1 O y$ i- W, \! W. o5 P/ s ( h) {7 I0 @4 \+ y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; q X, W$ J4 f, J( e- \5 ^" H3 k
2 f1 n/ ~" B0 `# ?! e0 X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& [8 p9 z; ~9 x9 ^" n* M
VariantInit(&requestVariant[0]); - M- O3 _$ \+ g# J7 X
requestVariant[0].vt = VT_BSTR; 1 _; N1 k: t% }2 v/ A requestVariant[0].bstrVal = itemStr; 7 \! K% @8 b4 F' H- u7 n8 C3 v& d% F1 [4 d
topicStr = SysAllocString((WCHAR *) L"system"); ; z. g, B; @3 _/ p3 s VariantInit(&requestVariant[1]); 7 q4 B7 S7 M+ V6 r7 N# }- Y
requestVariant[1].vt = VT_BSTR; . W. J) _ b3 m8 g& V requestVariant[1].bstrVal = topicStr;: o6 ~. c/ O d4 P8 s2 t2 P' [
! \; J9 u8 Z6 Q# ]5 h' v1 |// Set the DISPPARAMS structure that holds the variant./ P5 G( K8 v6 w. z7 M
6 A+ P. b3 h W dp2.rgvarg = requestVariant;% J# r, L, L! V' R
dp2.cArgs = 2; ' d9 P) @- P N& G/ g7 L dp2.rgdispidNamedArgs = NULL;+ K. O0 q8 W2 I/ ]' U( w
dp2.cNamedArgs = 0;. n4 O) \% M0 G b Y