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: n% g* A& J/ l6 N. \
Name = (WCHAR *) L"Poke"; , \1 {' P. K- R5 v, I- C/ M4 _ 6 L9 i+ y8 _; L1 o, E' i hr = m_pDisp->GetIDsOfNames (+ l T% L# P% F
IID_NULL, // reserved* d j% f' r7 [9 S
&Name, // Array of names to get IDs for ( l( W$ N3 m$ G- I: Q3 S/ e4 u' T% t% M/ P 1, // # of names in the array. S4 n2 U5 ], e' C
LOCALE_SYSTEM_DEFAULT, // System locale' Q r% @4 y" n% R1 b7 g# J( L2 w
&pokeID); // Array of IDs to fill on output 5 P+ p3 R' J4 A* p & y' l: t7 o" G if (hr); z4 o$ B* D1 F4 N
{ 5 G* t. Y7 D" ]5 z K9 e/ r e MessageBox ("Get Poke Unsuccessful");, [ f; z, I. l* b! X) d, J
return; : R& \% k: M- x& {3 S7 C# l } ) n* i s- g) j: U2 A, @. [* j/ Z# v$ M* v# C3 I
/**************************传递数据给extend**************************************/+ j2 B* C E& P, F/ T% l1 w; G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); W" K: g: {) y7 v
( W! T3 Y5 F' E: l) H0 Y8 F valueStr = SysAllocString((WCHAR *) L"1232"); - t( Y7 i+ E+ _% i5 e VariantInit(&pokeVariant[0]); / ~. X% d* u1 i( H/ `: | pokeVariant[0].vt = VT_BSTR; 1 j, B4 T/ T! v, Z pokeVariant[0].bstrVal = valueStr; % i7 N3 M+ N; q( E5 P) Q$ }$ r+ M0 k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . @. E9 @# v: y VariantInit(&pokeVariant[1]); ( |7 e Z% d% T9 U J pokeVariant[1].vt = VT_BSTR;$ m9 t/ A$ O" w1 L ]8 W. z
pokeVariant[1].bstrVal = itemStr;5 R. ?+ r2 T' f) R! [; {, l
4 s- S4 g& V6 m topicStr = SysAllocString((WCHAR *) L"system"); * E* X) d% O$ B. b" I VariantInit(&pokeVariant[2]); 3 J- Z0 L( ]8 r5 T pokeVariant[2].vt = VT_BSTR;! ]8 d9 e. ?# C g; `, r
pokeVariant[2].bstrVal = topicStr;2 H) v' ~ F( S+ \" A
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// Set the DISPPARAMS structure that holds the variant. ' j* K+ B/ V: b. u* t3 q2 z }8 m: _" M0 `3 M' {
dp.rgvarg = pokeVariant; ?5 f+ _: {: p5 d8 n+ E dp.cArgs = 3;* u. Q: `) X: d7 Y: K
dp.rgdispidNamedArgs = NULL; 8 n6 Y$ i0 y, h& `5 s) \ dp.cNamedArgs = 0; # e5 v0 M* y# \& L) O- p6 _! Y) I( C# V: K1 j4 _. m/ ]% s6 P
// Call IDispatch::Invoke() ! w5 I; B( o9 d% v5 z% v) |$ ^ Z' h* A: t2 S* \+ g/ H
hr = m_pDisp->Invoke( & I! H9 ~" V. A$ V" [& t pokeID, & p/ ^( D* H. d1 J: L# Y IID_NULL, & G/ n( L! s( S4 L LOCALE_SYSTEM_DEFAULT,) Z% H) K' p; p0 V }2 `% ]
DISPATCH_METHOD,1 X* w. ~/ z+ A- E9 l* n
&dp, 9 l9 v; k' a1 T9 _/ e9 y NULL,/ ^2 N, R, D2 T! o# ~
&ei, * R. Q3 T: B2 ~6 L% B6 E) i &uiErr); " D4 M/ H/ N# V7 {$ K; q, U) Z- J9 w* ~1 U3 L& v
SysFreeString(topicStr);# Z4 Q9 D1 h- B( a9 {
SysFreeString(itemStr);, V1 R' V. N3 @5 {! ~5 D
SysFreeString(valueStr); ; m# J/ I. w) A) t * W) d# G! ~8 d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???0 N0 N) H: [) y# ~+ Y1 X3 M, R& m
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????& u. J5 K% P9 \9 Q' r3 j8 P
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2.这是request的程序 7 H" N& V _# H// Request a value from Extend9 y! ]3 j" a' t. _4 Y- L
// 3 B4 H7 g( R' B7 s4 J" N// Initialize the variant that will hold the BSTR. Set the variant's8 R% l$ E! Z( u
// type flag to indicate the fact that this variant holds a BSTR. Place the$ a! o6 p1 A+ a/ T, ?* x# J
// BSTR into the variant structure. . W+ N; K: A8 S- x 4 G' x& P4 ~, O% x, T6 X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* M' j4 ~% a0 M' {
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , t4 m' |! j7 e/ Y8 S VariantInit(&requestVariant[0]); $ k, O6 { Q- x$ y" D requestVariant[0].vt = VT_BSTR; % B. v# o0 M; r9 I( P R requestVariant[0].bstrVal = itemStr;# ^# N. Q; {# P
6 B w5 n6 c+ o- K( e topicStr = SysAllocString((WCHAR *) L"system"); 0 P3 F, I \/ v% R VariantInit(&requestVariant[1]); ) @2 V: }) r! z( d/ l7 K- g
requestVariant[1].vt = VT_BSTR; ! P) J! O( y w1 c! d requestVariant[1].bstrVal = topicStr; ' O. T1 l4 l, p( p- O! I2 N- W% ^5 g$ E0 t
// Set the DISPPARAMS structure that holds the variant.8 M# E4 L: a: q+ P& S