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: Q% D2 X4 S; c2 Z! c% n8 g
Name = (WCHAR *) L"Poke";1 J* X/ X6 v1 m& I+ N
: i( n: S$ F: s* u; _. { hr = m_pDisp->GetIDsOfNames (( p7 L Y: X, c' ~
IID_NULL, // reserved . ]& d0 Q$ ?/ c1 J3 ^1 O &Name, // Array of names to get IDs for . {" P4 c; |- T2 r! D3 f 1, // # of names in the array ( U1 R: G6 C9 u$ W" P$ V LOCALE_SYSTEM_DEFAULT, // System locale 1 a6 s1 Q4 f$ t, n &pokeID); // Array of IDs to fill on output$ |' \% m; K. m% H( i4 t' w, }1 H' @
8 j" k2 @8 B" @. J" y if (hr) 5 i0 W7 k( w8 g { ! ?4 ^7 p8 l- j. }+ ] MessageBox ("Get Poke Unsuccessful");- Y: T" X$ A: G G
return;% P2 {9 O/ {9 e
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/**************************传递数据给extend**************************************/ " m6 m6 _, z* S5 D" N# @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ k6 M8 n+ X- H- N1 x! [ c
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valueStr = SysAllocString((WCHAR *) L"1232");# y; I! g9 \% B% I/ F% C) N
VariantInit(&pokeVariant[0]); . J2 o* ? l' ~" Q' Y3 o( ]
pokeVariant[0].vt = VT_BSTR; 0 s Q: Y- Y. j pokeVariant[0].bstrVal = valueStr; s9 q7 L# y; e" d: ^, ]* k9 D7 _# p2 G, C3 f8 C Y6 A' h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 n# Q8 t; F- G VariantInit(&pokeVariant[1]); : c' t' c% m* ^- ]0 W/ X$ t
pokeVariant[1].vt = VT_BSTR; & K' ?5 Z, Q+ u6 m pokeVariant[1].bstrVal = itemStr;. Q! v$ K+ e/ d1 \
0 x) F; D4 l U( V5 i: Q: q topicStr = SysAllocString((WCHAR *) L"system");8 v$ C% o* {) D2 b+ w+ b
VariantInit(&pokeVariant[2]); 9 d$ u/ L7 g+ H0 s# a5 X- L8 | h pokeVariant[2].vt = VT_BSTR;- i4 ^3 o r9 F7 f" g
pokeVariant[2].bstrVal = topicStr;* b3 G; `0 T! p; k
! D l, J( m% } o! M// Set the DISPPARAMS structure that holds the variant.2 }: M) G1 q6 L3 \9 J# h5 ?" r- p
0 o4 f+ E. z3 ^8 g( `# \5 g dp.rgvarg = pokeVariant;: t& ^- \0 S6 x7 O/ t0 v
dp.cArgs = 3;3 C7 M! T7 h3 o5 T* K0 G
dp.rgdispidNamedArgs = NULL;- ]* Q" v+ j' w5 P9 X+ B3 @
dp.cNamedArgs = 0;2 f4 M, |: ~$ D& m2 T
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// Call IDispatch::Invoke() 2 D# L+ V9 L& x" Z) G7 x1 a* R* U7 S& @: z
hr = m_pDisp->Invoke( + b e; @0 |: [: P) } pokeID, 9 [4 A7 a3 F* Z0 X k0 ]. ], h$ K IID_NULL, # o0 d# k0 {, H4 i3 ? Y LOCALE_SYSTEM_DEFAULT,3 w, x, i8 C: ~( f0 W5 b( N* w6 x
DISPATCH_METHOD, # A. A" F% ]) r7 z! [) E &dp,, E" P8 ~1 l; {0 N7 w* r
NULL, ! j+ H- p! D7 f4 l5 L &ei, 9 Y& N$ p6 |" {0 c7 `7 k &uiErr); x: T/ ^3 M; X9 m 8 ]+ k/ y; }5 J' V8 i5 {& w4 V7 T: W# j SysFreeString(topicStr); 8 C# [: a2 J) k9 l4 `, K SysFreeString(itemStr); 3 L" `7 c t; } SysFreeString(valueStr);5 O# c- P2 j6 `9 U5 c4 t, k
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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???; X$ r" M. Q' C0 J# g
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????; Z Q4 Y) k) E
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1 Q" |, A, q4 h! g% y2.这是request的程序- Z5 p; T& q6 P' d- Z
// Request a value from Extend+ J' m" j% d, A8 Y
// " r' E& w& w. r- t// Initialize the variant that will hold the BSTR. Set the variant's# d6 V# e# f4 u; T0 ~2 C! e1 w% }, A
// type flag to indicate the fact that this variant holds a BSTR. Place the ' c( X3 J( F( Z" A0 c. a// BSTR into the variant structure. % R. g& |+ w* _/ s5 @; A8 P: u0 R5 j) S" }) i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 F5 y( O% @! o. @3 H5 w% w* Q% M
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' \/ ]5 ?5 S! J. E0 x$ H VariantInit(&requestVariant[0]); : _+ o; M& q L- j! @
requestVariant[0].vt = VT_BSTR;4 t! @" O1 r7 i2 J8 B9 H
requestVariant[0].bstrVal = itemStr;% L7 {. D, M+ N+ F* l
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topicStr = SysAllocString((WCHAR *) L"system"); " Y& p6 y, H9 M2 O4 M6 \2 p VariantInit(&requestVariant[1]); ' |! v( o8 y& Y/ y0 P requestVariant[1].vt = VT_BSTR;5 l4 q ` l% q& U4 C
requestVariant[1].bstrVal = topicStr;& ~, J4 {' f: s: Y& R. Z
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// Set the DISPPARAMS structure that holds the variant. , ~5 g! b9 F0 G" C) U/ D' ?" }9 x 0 r2 S1 y$ X% y. T dp2.rgvarg = requestVariant;# A* K3 v& m" j) @' x
dp2.cArgs = 2; 3 \( O' \( J& H% J dp2.rgdispidNamedArgs = NULL; - ?7 |3 A; m A x! Q1 Z+ O/ v dp2.cNamedArgs = 0;8 M" b+ p& v6 V3 v3 N
- ?$ P, j6 S6 L: T0 ~& O. U var.vt = VT_EMPTY; l4 Z5 s/ Z& c! `* u6 b$ Z+ _8 X6 N' Z+ _1 W( u3 F* f
// Call IDispatch::Invoke() ; l! s& `2 ^' q2 H e6 J; @; ? 9 C P7 W* M4 _ hr = m_pDisp->Invoke(' v n" u3 V# k$ u
requestID,. I; ~: e" t7 ^" s
IID_NULL, . l# d6 G: c9 m h LOCALE_SYSTEM_DEFAULT,8 o. w6 i$ Y; y* ~- d5 d
DISPATCH_METHOD, 0 s: I: @$ g- `1 ?. M( [/ J &dp2, 2 b% m1 D. b/ h3 z4 @ &var,0 {5 L9 t& |( z5 I9 L. P
&ei, * i K* ]; `6 s# d3 u &uiErr); 7 P. x" E2 |2 F3 U4 f" m& T6 a- Z0 G5 V& c/ P6 I# _) s
SysFreeString(topicStr); ' F8 O" ]; `3 v9 s5 x SysFreeString(itemStr);! m; o2 @1 i! K1 N
请问该程序是获得extend里面的哪个值? ( n$ Z0 j4 z+ j# J+ U) }5 g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????