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:# w3 e2 p7 P; t
Name = (WCHAR *) L"Poke"; $ ?& e# [9 ?( ^9 b5 L ; E$ c9 u# d- O T( h
hr = m_pDisp->GetIDsOfNames ( 9 o4 x* A6 g3 m- n' J IID_NULL, // reserved " X' Y ?: h4 h$ _7 _ &Name, // Array of names to get IDs for 1 g% S0 K' l& y' Q( p6 T$ T 1, // # of names in the array: I# f' K$ I- H; {& X' N
LOCALE_SYSTEM_DEFAULT, // System locale' h& F R' y* u" M! n Y
&pokeID); // Array of IDs to fill on output6 U# o# _& d: b0 K' v' n
( V. [- ~8 Q* a: P- z( l if (hr) ; a6 W) v5 g1 F+ Y- T { & X6 J. q5 N4 t5 S1 S( @. p MessageBox ("Get Poke Unsuccessful"); ; q# k. U+ @$ \' \) } return; . W" h- T4 o: N* |- c( C }/ y% ?7 F- ^+ O8 i! w# F. t$ T" F$ n
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/**************************传递数据给extend**************************************/$ V) M' k3 z9 Z" t
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% t$ E6 `9 z& z+ Q4 J: E- |4 \
, C3 U: C3 j1 W5 @ valueStr = SysAllocString((WCHAR *) L"1232");" \5 C& D Y' x4 f; U
VariantInit(&pokeVariant[0]); , h! V: \6 [/ K! n7 D pokeVariant[0].vt = VT_BSTR; - N5 K$ a5 k% d pokeVariant[0].bstrVal = valueStr; ; P- v) h% Z2 {# c( ~3 R P* f' s- X9 d. f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); E- z5 R4 D; a+ }+ [
VariantInit(&pokeVariant[1]); & W, G# [6 B f0 f; l pokeVariant[1].vt = VT_BSTR; ' A# @& ^ P f7 v* l8 H pokeVariant[1].bstrVal = itemStr; . |3 Q/ u: ]3 p# ?+ t; t1 z# n% j( y. \. h& Z% H. z, j& {, ?
topicStr = SysAllocString((WCHAR *) L"system"); . f" ~% J7 R O0 ]) ` VariantInit(&pokeVariant[2]); : e' C! h3 s$ }% z+ P pokeVariant[2].vt = VT_BSTR; + j. _ J8 P0 u4 V- |- d4 X pokeVariant[2].bstrVal = topicStr; , e7 F4 V U$ J9 a, R0 t- r+ L4 O @% @4 y' f
// Set the DISPPARAMS structure that holds the variant. ) N, I, Z) Q/ ]) i& W8 { / t) {1 G* I, q3 J dp.rgvarg = pokeVariant; 6 }& t4 s& }( r% s5 c6 I# r dp.cArgs = 3;$ s8 g8 D# I, b" k, U4 y
dp.rgdispidNamedArgs = NULL; f0 t9 ]) w; L
dp.cNamedArgs = 0;: D; v. u% h8 z7 L" I, F' L
6 N$ S5 g" o, V2 X+ }8 R// Call IDispatch::Invoke() - i& ?1 A+ P# S5 Z" e* ^4 E6 S5 s# h0 W s3 Q. Q, J
hr = m_pDisp->Invoke(. r e: o& @- D0 m) w1 z
pokeID,, O, u! ?( F3 [- R9 D& i* n! E9 E9 J
IID_NULL, 0 X. P! v: q" k0 B2 a3 l LOCALE_SYSTEM_DEFAULT,. \/ V$ a& M4 u& o1 y# V" F3 [
DISPATCH_METHOD,/ D; u* Z v+ D" ?4 k: l, L
&dp,( F3 g; G( b0 V: }/ D3 e* K7 z
NULL, 7 `' M7 P& \( v0 H) P &ei, * o0 t7 L$ t4 C &uiErr); 2 _9 ]; d; ?& }- J( B 5 a. o' \! ~0 D% G- I% P1 I7 ]2 | SysFreeString(topicStr);6 n- g" d8 }. B$ M: a
SysFreeString(itemStr); 8 C! y. \' J& S( ?% z8 S1 W SysFreeString(valueStr);. ~: O& [, _3 H: q9 {
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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??? 3 F; P2 g; j0 c3 R5 x5 `6 D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????" R3 J( x1 J4 n! u* a3 [
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2.这是request的程序1 ?( ^' p5 {) Y3 b% }" C
// Request a value from Extend " |, w f- r4 _- d1 I// ^& B% Y7 T3 W# t% z l& N// Initialize the variant that will hold the BSTR. Set the variant's0 g( C2 p1 T! s* Q$ l3 n
// type flag to indicate the fact that this variant holds a BSTR. Place the ?5 f$ D. N) Y. F6 T7 N// BSTR into the variant structure.( ^) B. D5 p* W# E" O5 y* F
+ j/ d# V4 ~& D requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ D. n( ~4 v' l* W# i" Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! Y6 T! i5 i: S- Q8 ]: C3 c
VariantInit(&requestVariant[0]); # d8 n4 F* ~9 P$ s requestVariant[0].vt = VT_BSTR; # s. T: ]8 V. d2 P1 R: T requestVariant[0].bstrVal = itemStr;0 T$ @( t4 R0 ?
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topicStr = SysAllocString((WCHAR *) L"system"); . j \9 c& D+ ~6 l( y6 b4 ^ VariantInit(&requestVariant[1]); / C9 O- o4 j4 L4 C requestVariant[1].vt = VT_BSTR;. I% P/ M; |5 \7 Y% o
requestVariant[1].bstrVal = topicStr; " {" h$ ^4 r4 K4 [( O) M2 G$ }0 P ^' d2 _% W0 k
// Set the DISPPARAMS structure that holds the variant. : J% w% V4 g& `. N" m* m 5 P& s. v; [0 u0 q dp2.rgvarg = requestVariant;2 `8 R9 `1 v' Y7 t3 U
dp2.cArgs = 2; 8 a( D: E& C' z3 Q- K9 f dp2.rgdispidNamedArgs = NULL; e9 a& W% }2 @1 r( m- c$ H* T/ U dp2.cNamedArgs = 0; 1 Q. {. O6 b5 k$ n # q4 f- u2 o2 H0 \# f var.vt = VT_EMPTY; 4 [+ t9 w7 Q+ `5 H 4 C, m) I- t E' G7 M" y& J// Call IDispatch::Invoke()+ w& E/ I; [, I6 L# Y/ i* m# R1 F5 J
* J5 u- N/ X1 c3 F5 X& k1 e hr = m_pDisp->Invoke( & Y9 l! T/ R4 { requestID, w6 P6 N. Y% [" C% a8 {6 t$ O C IID_NULL,, R8 G4 n" I# h' V6 J2 ^4 J
LOCALE_SYSTEM_DEFAULT,, m! q1 R& H; ]9 t. V
DISPATCH_METHOD, 7 n* M7 E: N g: v& c &dp2,8 C, H* Y& u+ X! ^( b
&var, }9 }) l. ?0 x8 k+ {7 X
&ei,0 J& S/ l+ H: T0 S4 w
&uiErr); 9 D: x8 t b# M4 e- h' Z9 W0 c & L1 d t5 `# X i8 A% r- h SysFreeString(topicStr); s% G" T# U) V' G
SysFreeString(itemStr);" H! G' T; P' U
请问该程序是获得extend里面的哪个值?3 v; H$ p8 X4 r* C" j
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????