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: , \; x }+ S( P+ R5 K% PName = (WCHAR *) L"Poke";- h: `5 D' Y- T
V( d; s0 N- O3 A5 e hr = m_pDisp->GetIDsOfNames ( & w4 x9 t7 E. u" P1 _" N% ^ IID_NULL, // reserved$ y2 L8 U; s* X9 o( N$ d0 @2 v
&Name, // Array of names to get IDs for ; f8 O& {& m; L+ p- ~! ^) g 1, // # of names in the array2 G$ I8 {5 t$ i0 i( G J6 b {
LOCALE_SYSTEM_DEFAULT, // System locale" i0 i% e1 P9 r0 `7 V% J
&pokeID); // Array of IDs to fill on output 6 Y1 V9 u9 @' _5 r1 ] . v6 ]$ x( N( K9 `7 N. }& f if (hr)0 }$ w/ C4 X" ]0 v
{; ?4 m4 p9 B T
MessageBox ("Get Poke Unsuccessful"); 8 F `+ z. g @. o6 H6 i return; " ?9 }( |+ }/ C& d& L% g4 z# R6 o, g+ F } + }6 O! U! E" O9 p. Z* o / I: q1 B% U: K' @* e/ d j1 b/**************************传递数据给extend**************************************/ " F% V% k4 C4 i4 i, | pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( v0 b5 o7 G W " ]5 b" P$ t5 b% M
valueStr = SysAllocString((WCHAR *) L"1232");8 _* X$ N3 x7 e4 W! s& h* V
VariantInit(&pokeVariant[0]); : o a0 o1 E' S& z ?! x
pokeVariant[0].vt = VT_BSTR;7 B2 l$ l4 z2 d8 O8 f+ C
pokeVariant[0].bstrVal = valueStr;, b8 [ f/ M9 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 \# y. W7 H0 I" ~8 n) g* O VariantInit(&pokeVariant[1]); ; v9 o- F, ~' I7 F& H9 Q6 p k pokeVariant[1].vt = VT_BSTR;- w; c {/ f( Q! l; }
pokeVariant[1].bstrVal = itemStr; ~7 I3 Y. O) |" ] X
# G. O/ Y; m3 e( ^% z4 B, _$ }1 P. k topicStr = SysAllocString((WCHAR *) L"system");# |; ^+ Q6 z: X* n3 F7 `0 W
VariantInit(&pokeVariant[2]); " t7 O5 Q; ]- ?2 |( |( P
pokeVariant[2].vt = VT_BSTR; ( ], q9 S9 P' _2 g pokeVariant[2].bstrVal = topicStr; ( N4 J. i) j; l; z! y! t" ]1 O( X' Z( J) s' p% h
// Set the DISPPARAMS structure that holds the variant. 1 V E* C( \. [& c1 z% T# F! w5 ?' E! n/ |) I! j) P; h5 l
dp.rgvarg = pokeVariant; 2 _2 i- Z& b: `# s) U dp.cArgs = 3; # v5 n% O' `5 O# e, k5 Y dp.rgdispidNamedArgs = NULL; 6 b5 J9 v; Z' j% C9 b, l/ d dp.cNamedArgs = 0;1 p5 m. C" B4 V
6 w8 h! i) y A0 | u// Call IDispatch::Invoke() + H" `. `7 m6 t+ Q6 O& N 5 O% d8 Q* l, C& Y9 E hr = m_pDisp->Invoke(* H! Z8 [# S7 o4 z) U
pokeID,7 A) i6 ? I/ L' O
IID_NULL,: U: {: w. J$ S) w0 `0 f8 J: F
LOCALE_SYSTEM_DEFAULT, ( A3 l/ c) n1 V5 M# G7 O5 l DISPATCH_METHOD, 2 z8 b" n6 ~# X8 |# h0 d &dp,% [0 ?) k# A% Z/ N- _
NULL, , A8 }: \& Q% v &ei,+ _) r& |) j& O& [6 S e1 U
&uiErr);. n- p7 Q( u4 j; P2 s
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SysFreeString(topicStr);1 b# X6 C% S0 S# ^3 Q8 j1 A6 e% n
SysFreeString(itemStr);, i! H+ i* x; o: e
SysFreeString(valueStr);. t a1 }' F5 n
, Y3 d# e) ]; d+ L, [; `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???/ T3 o' n8 k4 P+ ]5 U6 }
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????- K- e6 `7 u4 a* N% ]$ d3 A
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- r& E, c- e3 K9 G6 {2.这是request的程序; `& F* Y. u* U( d: q% t! z
// Request a value from Extend, N. o9 Z: `* T8 H
// * i7 K, e8 k3 i! Z+ f* o$ O: E// Initialize the variant that will hold the BSTR. Set the variant's$ p S- z' ~" c& Z2 R9 ^
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 n2 g2 F$ v; M" Z0 V0 n. d4 B1 u// BSTR into the variant structure. # |" \. M8 L9 C0 ~) i7 X9 w5 O9 K: Y" V) o+ T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 N8 z7 ^$ F8 o: D5 _$ V
3 y$ W& Q2 J, Z. I3 O8 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 C' F& B" Z" ~9 u VariantInit(&requestVariant[0]); + _& Z% x/ L( u5 e4 Q' K, y+ ] W requestVariant[0].vt = VT_BSTR;, x9 g' I: t2 x2 `9 ^% Q
requestVariant[0].bstrVal = itemStr; 8 a. N" K" r; T- h3 G6 d4 c. F: D; R- n! Q3 s3 h
topicStr = SysAllocString((WCHAR *) L"system"); ' H2 d# D- t$ L: Y VariantInit(&requestVariant[1]); ) x9 U, f1 q1 F. p D) ^
requestVariant[1].vt = VT_BSTR; 9 I+ u0 B5 |# U4 i5 o3 W requestVariant[1].bstrVal = topicStr; 9 K& _% n; @( A1 M$ j- K 8 M) N* n8 k' z, T; G2 Z, X// Set the DISPPARAMS structure that holds the variant.2 s/ K) M5 {) _8 }2 S5 O6 R) G
8 I6 G4 X8 s6 u* ]- s' Q9 q2 {
dp2.rgvarg = requestVariant; 0 q: R) M8 d" t dp2.cArgs = 2;9 r) ?4 I8 B: w9 X* O6 s' l
dp2.rgdispidNamedArgs = NULL;6 w$ r; G+ ?+ L& J
dp2.cNamedArgs = 0; 9 }: G4 y, S8 U i/ g6 p4 ^/ ^% Y% r% r var.vt = VT_EMPTY; D& h6 Z1 X7 E) k$ d J3 b1 w2 ^: r$ I
// Call IDispatch::Invoke()+ \6 a/ `0 w* h3 ?) E. g
2 h- f9 `5 ?; T, Z hr = m_pDisp->Invoke( . b7 |* C$ r9 M) F! t requestID,; y* P O. f! R, i: [
IID_NULL,4 k* q& ]6 I7 I9 D! @
LOCALE_SYSTEM_DEFAULT, 5 S, j! U) H m DISPATCH_METHOD, 1 V) {3 d/ J6 i% Q* b& r( }: C3 G# d &dp2, 2 q6 h$ f2 V5 M' w; P3 o5 B h! e &var,! I9 m" g. L! T) ?3 b
&ei,- i; s- t7 u! A. g8 J5 X7 P
&uiErr); b4 E9 L3 E9 K4 L* d
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SysFreeString(topicStr);& g. p1 y* k) m3 k
SysFreeString(itemStr); y6 u% i2 l! [% J E5 E
请问该程序是获得extend里面的哪个值? , q2 P" ^' k9 C. X6 M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????