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： " Z3 i& L4 j. N6 }$ gName = (WCHAR *) L"Poke";( J6 @% g7 J, Q6 X
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hr = m_pDisp->GetIDsOfNames ( 8 {6 F- u. @. N$ f1 q( y IID_NULL, // reserved `0 o* T L2 V) F" F &Name, // Array of names to get IDs for 7 b, J# t( V) }2 X7 v 1, // # of names in the array9 e# T: C; @5 I) a
LOCALE_SYSTEM_DEFAULT, // System locale S9 x2 {4 m3 K" U7 L! j# ]! R &pokeID); // Array of IDs to fill on output' t3 ^# u0 i, w# t T9 `
8 a! p/ j' J* J( R if (hr)& A! o+ _ @/ \* |
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MessageBox ("Get Poke Unsuccessful"); 9 X5 s8 V" J" m" ?8 T, x return;- F' }/ S+ N3 U5 K
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/**************************传递数据给extend**************************************/ 4 C+ `0 q7 e) g7 U7 Z; L) i pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( ?! \3 i3 `: l1 k2 T * d- [, m- O) M valueStr = SysAllocString((WCHAR *) L"1232"); P; m& a6 ~+ D; {$ h7 q: P
VariantInit(&pokeVariant[0]); , W2 n; g0 R% r/ I6 h
pokeVariant[0].vt = VT_BSTR; * h$ F0 Z/ N# D( Q pokeVariant[0].bstrVal = valueStr; - `" J# Q* c% h: [ N L& x0 [/ c6 |* U) ^! x9 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 p" v a7 N' H' V VariantInit(&pokeVariant[1]); $ _: q- u$ ]. R! I9 a5 a pokeVariant[1].vt = VT_BSTR; 5 j, P+ I9 n! w& B. q; f7 z pokeVariant[1].bstrVal = itemStr; # \6 `6 ~6 _" g+ J# R5 B L1 Y& c 4 z" R- y( o' h( a* p topicStr = SysAllocString((WCHAR *) L"system"); 7 w; O- }* d+ {2 `& N3 v! s VariantInit(&pokeVariant[2]); 8 j* U, q4 T8 i0 T8 I pokeVariant[2].vt = VT_BSTR;% }8 B* _$ u3 \8 t% D w4 }: ]
pokeVariant[2].bstrVal = topicStr;% h0 K1 C& i0 x4 Z2 G5 N( v
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// Set the DISPPARAMS structure that holds the variant. 4 v# h7 t; E6 z t, P/ q 6 C, w0 f5 w) D dp.rgvarg = pokeVariant;, W& _$ p. Y: v5 u4 E: q
dp.cArgs = 3; . J6 j% o" }( V: E6 e7 A dp.rgdispidNamedArgs = NULL;) Z, S" o3 M! \* g! p$ J
dp.cNamedArgs = 0; 5 h, ^% x; ~# c1 E' H/ i8 j3 q, a3 v6 _- z
// Call IDispatch::Invoke()7 b: w* U! f6 {. ?. N8 g8 X" W
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hr = m_pDisp->Invoke(8 y, |: r7 ~' i
pokeID, s" e3 f$ [5 \9 v IID_NULL, . C( M% I/ u, [1 m LOCALE_SYSTEM_DEFAULT,: t% L5 `1 d: B2 n0 u
DISPATCH_METHOD, , H g- k! d/ d x+ W5 ]5 V* O &dp, + i! r4 a o: u7 Q, ^7 \ NULL,; I. V7 g: o) S+ _* t3 q
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&uiErr);3 u: g0 ]- p9 m6 S( S
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SysFreeString(topicStr); : a4 X1 }8 U- k. K SysFreeString(itemStr); 5 i. M8 q4 c- ]( V. V# O. E* b% I SysFreeString(valueStr);4 [. v" ^! U0 G( Y! K8 ^
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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？？？ 8 w6 u- ]+ `2 _' 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？？？？! }# d! n8 p# x
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2.这是request的程序6 m ~0 ?; t% z1 {& T( d
// Request a value from Extend" T/ J. O' A+ e6 [5 |
// ' {! }4 F" M1 \) g: ?// Initialize the variant that will hold the BSTR. Set the variant's - p2 [. H7 S1 w" Q// type flag to indicate the fact that this variant holds a BSTR. Place the1 X# v( ?8 W& B7 Z! ]* X
// BSTR into the variant structure.1 H2 N+ T8 Q. R# |0 J* P* @
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); u6 y: S. b- ~ z. z& f# }
. n0 g# z; Q# Z& Y `/ L0 I, H) b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ D& y8 W6 W# g% C3 A' H VariantInit(&requestVariant[0]); - z% P! e8 {3 |- g3 E
requestVariant[0].vt = VT_BSTR;% F/ o* V# \' ] s9 b6 ^7 i7 A
requestVariant[0].bstrVal = itemStr;# @3 Q/ \3 O: z; M, g
2 G! {7 P1 w1 _) M; ?4 ^4 N topicStr = SysAllocString((WCHAR *) L"system"); : H5 G6 y8 v! { VariantInit(&requestVariant[1]); + P' r7 @/ J# B; o( j2 a) }4 D requestVariant[1].vt = VT_BSTR; ( U5 J1 w5 R& p, ?3 l9 G requestVariant[1].bstrVal = topicStr; 3 E5 W- M6 h6 @' J5 o7 H ( W7 j7 W- R. N! m# W, o) g// Set the DISPPARAMS structure that holds the variant. 1 x2 ]& |) @; ]- n( K3 k) B( @. P2 _
dp2.rgvarg = requestVariant; ( I j6 a$ ^9 `: z. ~3 _ dp2.cArgs = 2;. h: \1 A+ [9 Y" O: p
dp2.rgdispidNamedArgs = NULL;- z1 s2 _% c1 c/ q7 _7 C' X
dp2.cNamedArgs = 0; }( _ W3 r0 W5 ~ 0 q* N9 p c$ @9 H e* b& }# C var.vt = VT_EMPTY;$ Z9 W% P4 H& v
: G# w" G" c/ b// Call IDispatch::Invoke()0 D6 v2 G& F7 T5 `- ]
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hr = m_pDisp->Invoke(" `) ?3 W8 }2 w1 n3 g
requestID, 3 Y: U0 H V# l( R* V5 l- I7 {" J IID_NULL,/ w9 |4 h# u' e0 b) g
LOCALE_SYSTEM_DEFAULT, 4 T' t. ^1 U/ N4 a, e6 \5 Q8 M DISPATCH_METHOD,' ^. \0 N; _ M2 k q5 j
&dp2, 4 m1 n& h/ U, y- A &var, 3 X% W0 e4 A, P6 h* F/ p; b &ei,- {. `6 G m1 z0 g
&uiErr); + `" L3 S6 G; ~/ o) ~/ o 1 ]' v" J: T/ X9 m! d! N' m4 T SysFreeString(topicStr); ; y5 `' D) l+ O: {- s1 Y. q; I4 P H SysFreeString(itemStr); 8 Z: _/ g0 W0 t* @/ p请问该程序是获得extend里面的哪个值？4 y& F3 X6 h7 l
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？？？？
发表于 2008-11-25 19:37:03
