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 I3 v; x1 _8 j/ u5 f9 l5 v
Name = (WCHAR *) L"Poke";5 Q1 t- K/ @% T; a1 }+ n/ H# W! B
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hr = m_pDisp->GetIDsOfNames ( / W) a- g% V1 r2 E8 V IID_NULL, // reserved : i" {. |) |/ N+ v1 t &Name, // Array of names to get IDs for. b' y: H4 m# Y* b
1, // # of names in the array : N% y4 \2 J# m! H LOCALE_SYSTEM_DEFAULT, // System locale$ |' f! Y! c N7 H7 U- f5 v% B
&pokeID); // Array of IDs to fill on output 1 j, ~ o& {$ p; p! ^3 t * O5 ~3 X+ H1 Q' @. b if (hr), ^. g8 s! I; U# ~9 ^
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MessageBox ("Get Poke Unsuccessful");4 T* L0 z0 L" ?% V2 j
return; 1 \% b2 F* j; w6 _ } , d F3 k. G) I: E" s ], F2 j- k7 [- ~% n
/**************************传递数据给extend**************************************/ 5 r- d4 n! B+ o, G6 u" U% L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 X9 J' L% q5 h; l/ `4 h2 X' b& i. [ 2 X+ h0 n- i5 W4 a8 y& |$ L
valueStr = SysAllocString((WCHAR *) L"1232");3 \# p- T7 p8 O
VariantInit(&pokeVariant[0]); 3 r& a; o& X, v1 j+ a$ |3 X& t pokeVariant[0].vt = VT_BSTR;) V6 o- p5 P% V2 A
pokeVariant[0].bstrVal = valueStr; + c/ g' s/ s; H0 }" |. ]8 x3 n$ {4 y2 B: ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * [. U- v& C b3 M- j& @ VariantInit(&pokeVariant[1]); % _1 _, T( @8 V: t2 J9 t% J% ]- k
pokeVariant[1].vt = VT_BSTR; 2 J" ?/ s$ l6 [ pokeVariant[1].bstrVal = itemStr; 9 U! G( Q4 k0 D' c& D3 ?$ n9 h5 p: O; V" r6 A
topicStr = SysAllocString((WCHAR *) L"system");2 }6 s3 z- |8 }% z D$ G. ]: r
VariantInit(&pokeVariant[2]); 6 @: @! Q# L" r9 b. Y& q" p pokeVariant[2].vt = VT_BSTR;4 o/ M4 C7 s4 E+ K
pokeVariant[2].bstrVal = topicStr;& m0 @' H' U4 I' N
: e7 Y ] b' m& B) l. i// Set the DISPPARAMS structure that holds the variant.: m5 R3 Y, g1 e. G0 H8 Q6 H; u
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dp.rgvarg = pokeVariant; + v" U$ [" f7 h) M1 _: @$ { dp.cArgs = 3; : t9 _3 ] s2 K4 S; I dp.rgdispidNamedArgs = NULL; 6 S8 a+ Q8 F Q! Q4 q: R dp.cNamedArgs = 0; ' K, e& N# W1 M o . d3 g& N+ }# ^; z// Call IDispatch::Invoke() @4 x- n7 H' f* k# r : O' f6 y; S5 K! n E hr = m_pDisp->Invoke(5 _# {) G m3 O- O; a" u
pokeID,& U* B* o1 b; s; B2 c
IID_NULL, / ~" [' y& y! I9 ~' U, k LOCALE_SYSTEM_DEFAULT, 6 z" L4 M: z) X1 ?5 n DISPATCH_METHOD, % \& \2 s2 F% l5 e. g &dp, % Y, a4 k: E: P! f2 Y NULL,' j( n" K) ^' L" e1 n5 V
&ei, 5 W: l# c. O( i* V& ?/ X &uiErr);3 Z0 Q5 F/ e# ~$ G6 w# s
6 Y: f) g1 n3 ]5 _ SysFreeString(topicStr); - O+ j9 g7 E+ H- q" S SysFreeString(itemStr); - t# I7 M3 V7 c( N3 F, i6 E: e SysFreeString(valueStr); : [2 L/ x1 Z+ q- s4 L- Q: ~8 B" w- M. X
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 k" m% j% u7 f1 Q
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????, A& h3 L" v: @4 N
/ v* ^. s( U [2 ^. d. Z $ g$ b- E/ V* s" C2.这是request的程序 : x% T% v. ]0 ^, [. O$ V, l6 w// Request a value from Extend% v+ y& q" y% }+ p8 h4 I& K
//* ~3 m1 `& i, M% [- q4 R
// Initialize the variant that will hold the BSTR. Set the variant's0 _9 N/ F5 s. b
// type flag to indicate the fact that this variant holds a BSTR. Place the. v$ B# B2 A# u% W
// BSTR into the variant structure. ) }. F0 l( A1 q& \; l+ R( Y2 ?' r: |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 e2 \3 ]5 n0 v/ c
7 z" W, p" b# S/ F- n+ E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) I+ M7 l+ Y: m4 W
VariantInit(&requestVariant[0]); 9 v8 ?4 q# s: N7 ^3 s9 m requestVariant[0].vt = VT_BSTR;& I, h' r3 y; ^7 N# q, i
requestVariant[0].bstrVal = itemStr;3 x1 f' V6 C, C% D