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：) Z7 @: ^ Y( S) T2 ~
Name = (WCHAR *) L"Poke";2 k+ l0 u2 N4 B: K
' W: ]1 ?6 o+ n5 B8 z hr = m_pDisp->GetIDsOfNames ( " |+ M7 K* `, |5 { C IID_NULL, // reserved % m2 h$ Z1 A s3 x2 C- j6 K; } &Name, // Array of names to get IDs for a, j/ z: i; O, V0 x5 W 1, // # of names in the array H' x( v, c6 s LOCALE_SYSTEM_DEFAULT, // System locale $ @- ~! v4 P5 I1 n6 c &pokeID); // Array of IDs to fill on output * s( h$ q1 U+ Z% h/ N% @7 ` ( }8 [, V" j6 d6 `
if (hr) : S% t, G; Q A7 W' q {+ U$ z6 w8 L" ?8 T' z
MessageBox ("Get Poke Unsuccessful"); 5 n* h) Y m* A4 V7 N: f0 Q return;9 T+ l2 ^- _1 M+ |6 u8 A8 R1 V
} / _6 H) f- l' w0 k8 k3 W5 P( \$ m + P! J% I8 ]' z3 o2 e" K4 \! a1 S/**************************传递数据给extend**************************************/ + O' d# \1 c$ G3 y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 v& z4 M+ _3 a1 `" a ' N* D; |: e5 p. A+ Q4 i
valueStr = SysAllocString((WCHAR *) L"1232"); [# R: ]+ S$ ~
VariantInit(&pokeVariant[0]); 1 t" t3 q8 p- l; o0 I pokeVariant[0].vt = VT_BSTR;9 M) x- I6 t5 Z2 h$ L
pokeVariant[0].bstrVal = valueStr; . l4 L6 a# }/ C0 c8 w6 V7 }; G$ k* k, L7 r. |! @. z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( b; e7 V0 K* m, p+ ^1 q5 S
VariantInit(&pokeVariant[1]); 7 s4 c( U8 z2 C/ S7 m/ }( c3 b$ X
pokeVariant[1].vt = VT_BSTR; D* [* F: | V! R& B+ C
pokeVariant[1].bstrVal = itemStr; # q2 g5 Q: W! q$ h0 e 7 M: k( f) t4 o+ S% g6 L topicStr = SysAllocString((WCHAR *) L"system");5 `" n' v& r7 v" V4 V/ f L9 [" n+ v
VariantInit(&pokeVariant[2]); " H' }; B3 g# g! _+ e) N+ m/ U/ a
pokeVariant[2].vt = VT_BSTR;0 p" y/ a! v$ |
pokeVariant[2].bstrVal = topicStr; $ p E; x c g+ J' O9 {2 Q4 Z! C4 j5 m3 y7 e; R. E* ^
// Set the DISPPARAMS structure that holds the variant. # R# F) U" a$ Q* {2 |6 z! d) D; y+ N% Z
dp.rgvarg = pokeVariant;, M; r$ l" a4 S4 y
dp.cArgs = 3;# \4 F5 C K# h- j( A2 `! }
dp.rgdispidNamedArgs = NULL;6 S' ^( }& L( _. }7 n
dp.cNamedArgs = 0;& _7 `$ k5 W* A) J
" c! c1 x3 E9 n' L, b- k3 U- z
// Call IDispatch::Invoke()2 w+ Q+ l8 I9 X5 D2 i. P
7 f& U0 Y3 d: C
hr = m_pDisp->Invoke(0 S0 X( {$ A7 a4 d3 f/ ?0 w2 O
pokeID,2 U, P: `6 S. a5 C( E& i! J: r
IID_NULL,, W2 h8 G, a% E% N
LOCALE_SYSTEM_DEFAULT,8 }/ N- b+ ]* m! K* E3 x
DISPATCH_METHOD,9 R- W" a4 e- i
&dp, 1 n7 J+ T9 X0 M NULL, 4 }* v1 d x- G1 b( Z &ei, 4 j+ s# o% ^) m &uiErr); * o3 C; L& A9 y& F2 W$ C$ [; z+ K+ J& q7 t
SysFreeString(topicStr); Q8 j1 ^2 c2 ]: o) J* ^ SysFreeString(itemStr); 5 I5 d. _+ M' Y: W1 x+ A% p4 \! ^ SysFreeString(valueStr); 2 B8 E) t4 y( b0 R 0 B* m5 a0 X; g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？？？ , A8 y+ G( L* b* d2 R' O) I( F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？？？？5 U7 X7 O# e8 q
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! B/ T1 Q$ x' Y; R: C2.这是request的程序 % Z4 B B6 I( `5 G// Request a value from Extend' x6 t' L) {, W8 p
// / m7 J0 c0 x, J// Initialize the variant that will hold the BSTR. Set the variant's ! g( }' G, ~' l9 G0 c5 u5 }0 X// type flag to indicate the fact that this variant holds a BSTR. Place the " w+ b! \, t/ P) T' M// BSTR into the variant structure.& c: `+ C& U" H/ |# o: c. X, q! t& x
6 u" i# L. z# g* S4 r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 G( Q; ]2 G& r7 S" x
% z0 `: w6 d- J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 D' k7 [; S- X3 t, |! J VariantInit(&requestVariant[0]); " e/ o7 W% P8 g4 P
requestVariant[0].vt = VT_BSTR;: d6 }3 L& N3 t1 y
requestVariant[0].bstrVal = itemStr; + M+ O, n3 k6 W. O6 h: _3 R) V7 C5 {; {" u2 y
topicStr = SysAllocString((WCHAR *) L"system");3 t9 L2 M# U4 P) p
VariantInit(&requestVariant[1]); 0 c. j# z3 x% ~/ u" v$ x+ a/ o( h
requestVariant[1].vt = VT_BSTR;( M0 n' k' \' h: L
requestVariant[1].bstrVal = topicStr; 5 K1 x& ?( h# N" Q+ g' [0 G. ?0 B3 o
// Set the DISPPARAMS structure that holds the variant.: B% {( }/ e2 t1 D0 o9 ^
发表于 2008-11-25 19:37:03
