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: 5 @; ]8 e; G& ]! ]Name = (WCHAR *) L"Poke";$ q; l- c6 D' a- E/ p
# b* S- \) V# G. {0 y hr = m_pDisp->GetIDsOfNames (7 ~6 q% ~' ]8 U+ K
IID_NULL, // reserved / }$ y1 r* l2 Q) A &Name, // Array of names to get IDs for ' q6 o- O1 d- P 1, // # of names in the array; F, o5 f9 C% _: J
LOCALE_SYSTEM_DEFAULT, // System locale 4 M; c( y$ d( y; ^* o* Q &pokeID); // Array of IDs to fill on output/ a* a" e9 P' P/ k2 {; g
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if (hr) ) l6 \% F ^ A! ?/ Y5 n { " R7 }% p) F) T. m ^6 ]1 o MessageBox ("Get Poke Unsuccessful");. ^; R/ `' \. S" e v Y
return; 6 @. k5 B% A( T, G5 `+ w& y }0 X) b6 |3 D9 {/ f5 i6 e
5 e5 }- }4 z# E$ X; d Y/**************************传递数据给extend**************************************/ ! t# |7 K; V, e pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 q( r# e/ l, b" h2 W, a4 v $ N' ^9 \+ Y$ ~' K$ k( z valueStr = SysAllocString((WCHAR *) L"1232");0 p: y3 s' i& i+ a
VariantInit(&pokeVariant[0]); & ]3 J$ `" M$ P6 u7 R- e( z
pokeVariant[0].vt = VT_BSTR; 9 K T6 q$ d( s- J0 \' H pokeVariant[0].bstrVal = valueStr; 9 L8 [& p4 G R- b: | ( y2 ]3 u' \: I- h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# m5 `2 Y# m/ m7 u
VariantInit(&pokeVariant[1]); 4 s4 u% {$ \, I* r9 P% `0 i pokeVariant[1].vt = VT_BSTR;( U% z2 d7 J/ x5 E$ B" ]
pokeVariant[1].bstrVal = itemStr; 1 s9 r8 Q3 e: B* A: L 0 n( H7 p( d% ~ E+ b topicStr = SysAllocString((WCHAR *) L"system");" b& a7 t: |+ f; m2 C4 Z
VariantInit(&pokeVariant[2]); ; _: y( s) i7 B pokeVariant[2].vt = VT_BSTR; & s5 ^, x c$ @ pokeVariant[2].bstrVal = topicStr;7 f) A9 W% b* o+ u1 P: [; Y8 n& S
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// Set the DISPPARAMS structure that holds the variant. " a2 }8 k6 j! |% |; s 6 w/ k- g% Q% Y9 z; a( g dp.rgvarg = pokeVariant;- c% }$ T/ e; [# l
dp.cArgs = 3; 9 i$ G1 p) { _ dp.rgdispidNamedArgs = NULL;; x& ]8 u6 m( y% B) T
dp.cNamedArgs = 0; ! v# I- V e% N7 G3 t/ k" ]. L* z0 W' o# Q9 `
// Call IDispatch::Invoke()& B/ }% @* b. `# Q! b% U, Y
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hr = m_pDisp->Invoke( 2 T H& w; D& N4 G+ b+ b, } pokeID,# X0 X: W2 D/ h/ X3 z( x
IID_NULL,8 p0 G& j9 S: i! n
LOCALE_SYSTEM_DEFAULT, & \8 p3 r. M& y- n& Y' C3 f DISPATCH_METHOD,8 [' Q* Q. c* v3 [
&dp, 0 L) E% M/ P: c- P& {% U. F- a NULL, * \. E0 L" l9 J7 a8 Q &ei,5 i4 h, m, b# q
&uiErr);$ T8 ~& W+ W. }4 C2 a
7 }& D* s5 B- W# u SysFreeString(topicStr);9 F; G B4 m4 K8 a. A, V2 P* f& [
SysFreeString(itemStr); 4 K+ @# W: t" a. o K" ~ SysFreeString(valueStr); 7 b$ }% W1 h$ Q* R+ e. D! r! p4 l# S2 o/ V& Q. h, ?
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??? $ \) V" |, [* k/ D- S! ]8 W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???? b; n0 q" i, A" `3 j" r( M) n0 V* O' }
+ C3 l: _/ u! _3 b7 Q; g% e7 I+ N% C2.这是request的程序# e# i9 I) C6 [+ I
// Request a value from Extend ' q& G1 J' X1 o* B/ `. _ ^// 1 o* d2 q: V' o# d6 {# s& ]// Initialize the variant that will hold the BSTR. Set the variant's( P( |1 e% Y5 V& S7 O' e- z- s3 P
// type flag to indicate the fact that this variant holds a BSTR. Place the: |2 \' k9 T7 @" U! n3 b5 @
// BSTR into the variant structure. 0 d) N3 W B5 K# e" T, u8 C1 e- U# S$ v5 S' T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 b& E" [/ x1 D