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: " \4 ]( N( f. d3 q! f6 h( rName = (WCHAR *) L"Poke"; % |" a; R/ n; F' q% Q) }: G$ _ * T0 f! c l) @+ K4 m hr = m_pDisp->GetIDsOfNames ( : P M' K" K1 } | IID_NULL, // reserved # v L& F2 ^# L$ `, E+ k+ \; b+ I &Name, // Array of names to get IDs for 8 A( U5 a& W0 A) p5 P 1, // # of names in the array : `7 \& B: S7 v LOCALE_SYSTEM_DEFAULT, // System locale- F" Y. {& O& b$ @
&pokeID); // Array of IDs to fill on output- h2 M; g/ G' O: D2 m: F. t, O' g8 q
6 ~/ H5 m& R4 P9 A4 `5 y1 X ] if (hr) $ B& E1 g- ^0 v+ [5 D$ A { 7 R* G, Q, o6 {9 Y' u1 H; Z MessageBox ("Get Poke Unsuccessful");# Z& p: k( i3 d A, x
return;1 r/ z: t. b7 m3 V
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/**************************传递数据给extend**************************************/2 L7 O d8 Z8 m) c7 Q6 H/ |; l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( m' p- v* P; a" P# ]1 O1 m+ B7 { % |* c- l* z+ c( |" b" l* A9 u valueStr = SysAllocString((WCHAR *) L"1232"); . ]" C4 V0 ^& Y VariantInit(&pokeVariant[0]); 8 j5 \+ ?# Q& V* j0 c) N
pokeVariant[0].vt = VT_BSTR;6 F$ X* g8 ?2 B8 I
pokeVariant[0].bstrVal = valueStr; ! K, N* b; [8 V& N , S" i3 U/ i5 i1 G; q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 z( Z+ |. s3 x$ n0 T/ ]0 r VariantInit(&pokeVariant[1]); 4 K1 ]* o2 Y" _9 O" D pokeVariant[1].vt = VT_BSTR; 3 M2 B# A& f9 w. Q6 _9 n! R pokeVariant[1].bstrVal = itemStr;, N* r) [3 B( h1 v6 |& V
' J! \! _, P# { topicStr = SysAllocString((WCHAR *) L"system"); & l' J- _, p% @* g VariantInit(&pokeVariant[2]); ' b$ y5 N2 Y* w' X3 Z6 X
pokeVariant[2].vt = VT_BSTR; D) J+ K+ \: c3 n8 c9 t
pokeVariant[2].bstrVal = topicStr; % W* l0 W. L1 }! ~8 J* F ( M7 L4 M" k# A' H// Set the DISPPARAMS structure that holds the variant. , X( E8 `, |; N$ L 7 {3 s% C% J) y, j! o+ t2 z" Z dp.rgvarg = pokeVariant; 8 |/ z$ S1 V) ], I" R dp.cArgs = 3; # e7 O8 O: r X& ]1 C+ c dp.rgdispidNamedArgs = NULL; : B6 h+ s6 K+ x7 m2 s* m2 I% k dp.cNamedArgs = 0;: H6 |3 `! D, `- f4 J- \
$ c, w8 A& z# M5 F. m* h) U// Call IDispatch::Invoke(); T2 ^5 O5 J$ u7 _
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hr = m_pDisp->Invoke(6 W/ U3 w; f6 y5 b. O) B( U
pokeID,( o! k. Q- W) e ^) R2 D3 x" Y$ L/ r
IID_NULL, ) ?7 w0 P' y1 m# P4 w LOCALE_SYSTEM_DEFAULT,; @6 q v2 t$ S, _: R, R: Z9 I
DISPATCH_METHOD, 6 y7 B, i: j- ]' N &dp, 8 l$ l9 k+ N% n1 n2 }6 i' a NULL,6 d: B3 C; }7 z N
&ei,* U! \" b; l2 {, c+ o( b
&uiErr);9 Z/ ?# ^# ?* ~- t5 \0 ^
- \3 j& i" Z. I! ^, h) I! o2 U SysFreeString(topicStr);3 @6 t8 g5 g0 O/ P
SysFreeString(itemStr);% d! g g. g( M; J7 d+ {5 h# ~
SysFreeString(valueStr);/ N) N6 ^- U5 |) y7 |7 w
3 A, g- {% Y! Z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??? + U V# J' I( y+ V/ G- F* 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????& ?4 w- M8 s# j) T! x
' y* z& A0 j4 o8 P0 c " N6 R9 M2 y0 e2.这是request的程序 4 w# g# X6 o) q! I: \& ]5 U// Request a value from Extend - a* M. y* y* u1 _. w1 K5 F0 }" A// , P8 P2 `/ |& }* v6 i// Initialize the variant that will hold the BSTR. Set the variant's0 a* \' I' f. ]
// type flag to indicate the fact that this variant holds a BSTR. Place the / _$ r, R! y9 ~8 c# V// BSTR into the variant structure.5 P, G+ \( M- r( C; [
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . Q; p j" r- K/ @ N% m& f # B; T4 V$ z; m" O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + N' x# S9 d% A t VariantInit(&requestVariant[0]); . n6 p( c: x; Q+ g; k( Z. t( k
requestVariant[0].vt = VT_BSTR; % i- ?0 J7 n5 F7 C7 q requestVariant[0].bstrVal = itemStr; 9 h: T& H B) s# j' k/ p5 } 7 j) p% G8 z# C& Z1 \3 `. ^" U topicStr = SysAllocString((WCHAR *) L"system");5 z! D# j( k6 z' v% r. y# p7 T
VariantInit(&requestVariant[1]); T" k; _$ B1 F& p* |; B* c ?
requestVariant[1].vt = VT_BSTR;6 V M9 c+ v& R
requestVariant[1].bstrVal = topicStr;5 ~( a, C0 V$ r2 |% E* D) F* `
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// Set the DISPPARAMS structure that holds the variant.0 H+ r7 ]# Z1 m$ I) Q: z- ?6 `; a6 g
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dp2.rgvarg = requestVariant;& S6 ?6 }0 O, x+ ?; D
dp2.cArgs = 2; 3 r& J2 E* a- E8 N& p f" b dp2.rgdispidNamedArgs = NULL; 3 F& k) y0 ~1 ?" I6 Q dp2.cNamedArgs = 0; 9 n/ X I7 i2 Y0 s- W. ]* g+ J# W! t" C6 ~) }
var.vt = VT_EMPTY;$ U _* C" [5 u2 j6 z0 Y
1 A6 E' y: `8 w// Call IDispatch::Invoke() # l8 {, L: `5 X2 j0 n$ k" l. a) j2 X" a
hr = m_pDisp->Invoke( 7 k( [- }: |+ g. d- [ requestID,, B, H: I% \$ Z$ c; t
IID_NULL, 1 ]' W- d$ X) \+ ~3 X. T LOCALE_SYSTEM_DEFAULT, % ^8 ~5 q7 f% q' z DISPATCH_METHOD, $ V! Y8 l0 L$ d( n &dp2,, I* \, g. Z3 J/ J
&var, / i" F9 Z5 @! y &ei, 2 E4 a5 v# ^; @0 }/ x; k; Z &uiErr);+ ^6 z' @# q" A j4 a: D5 u! t
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SysFreeString(topicStr); - Z5 L c/ w$ k* i5 \ SysFreeString(itemStr);1 C% ]+ \' R y3 U% y# E
请问该程序是获得extend里面的哪个值? 6 o# H' Y" @" m; J( Q; Q% ^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????