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：+ L& ^* o, Z B* I7 [
Name = (WCHAR *) L"Poke";! R8 N7 \+ ?) H
8 M- G' L5 `$ X0 g( Y& U hr = m_pDisp->GetIDsOfNames (; L1 X# X: Z, B% _! Y* f( p+ ?
IID_NULL, // reserved 5 x0 k; i+ `0 Z1 T" j, t; M$ R &Name, // Array of names to get IDs for) n) K0 Z( U0 ` V4 N
1, // # of names in the array 2 _4 b# L1 G" n: m LOCALE_SYSTEM_DEFAULT, // System locale - T1 s9 u+ F8 z8 p' e7 x &pokeID); // Array of IDs to fill on output 4 U6 N4 C9 [" f8 a& z. g 5 F) `+ o( f" @+ }8 Y; |" T
if (hr)! u! o) |& H. I J) O# Q% i2 w& V
{ & F9 [6 o* f. V MessageBox ("Get Poke Unsuccessful");+ `* ~1 F8 Y; a" ]7 w* C; ~
return;0 {% I) z/ S! Y
} ! `+ x& s" Y0 L8 e' M& a8 I( }) y. {; J
/**************************传递数据给extend**************************************/ 4 D L3 l+ G. [ b/ O5 U3 D# B& c; s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 t; _+ r9 o9 u* x: c
/ C+ A l' x8 ` u& I
valueStr = SysAllocString((WCHAR *) L"1232"); 5 e! b+ r0 r7 k# w6 J$ t% a4 h VariantInit(&pokeVariant[0]); + Q# O" L/ U* f! r$ W. ~; F& g
pokeVariant[0].vt = VT_BSTR; - S: g0 h/ \: b pokeVariant[0].bstrVal = valueStr;5 ~+ C1 ]# T9 [9 |
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) i5 `1 Y7 O+ ? VariantInit(&pokeVariant[1]); 7 Q7 a1 i, }; \; [ pokeVariant[1].vt = VT_BSTR;) X! i* V# r% {: ^% B5 M
pokeVariant[1].bstrVal = itemStr; 1 T8 d7 E) o0 a7 G; P! v# W/ E& R" A9 _
topicStr = SysAllocString((WCHAR *) L"system"); ' }& X9 X) a' G" ~- y- E VariantInit(&pokeVariant[2]); ; c/ @% u3 h& S- I2 F+ \
pokeVariant[2].vt = VT_BSTR; $ e# ?7 X$ B& \2 M pokeVariant[2].bstrVal = topicStr; # _; N% G' C, \/ K1 I . h# U; l* [6 L# ]7 |// Set the DISPPARAMS structure that holds the variant.# {" a& G: i! X7 G9 a8 d; W
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dp.rgvarg = pokeVariant; 8 ]* L: M/ `$ q* l* }: y dp.cArgs = 3;+ V) t5 b3 V/ s: P0 f0 e" t: t) B3 }) A
dp.rgdispidNamedArgs = NULL;2 P7 j0 M* c4 b5 W$ `, ^; b+ i% v8 h
dp.cNamedArgs = 0;! a+ O5 a. j3 j4 \* s: X
- M' o B8 Y8 ? _+ }) Q- s// Call IDispatch::Invoke()5 }! v l% c p" ?. \8 n1 l. e# |- w' z% g
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hr = m_pDisp->Invoke(. R* i7 K& W) c6 E- f$ b
pokeID, 7 N) {0 N% L( ?4 _) z! S4 a IID_NULL,8 z% n! Y0 V; g$ r4 y
LOCALE_SYSTEM_DEFAULT, ( T9 U* s% G* [1 N DISPATCH_METHOD,* a) ]9 E: |) u- J# p
&dp, 3 j0 s& q# N7 T9 ^5 `$ i NULL, # L" v+ ]* O L" u L &ei,7 A% u; F+ _- V/ i
&uiErr); $ [ K6 w' W k2 ?! Z& w2 E8 O! f; C* e* _$ g8 g# u/ b
SysFreeString(topicStr);, t3 N# |* l7 S' V) I5 a; |9 ~5 u! z
SysFreeString(itemStr);* `5 F2 R% }- m; W" |
SysFreeString(valueStr); # Q5 @; f$ y6 j2 W+ z & D& |2 s- @( i' n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？？？ # N! V4 ^# o: k3 c9 _+ P/ \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？？？？ * W% m( z% O8 t6 M0 Z 1 [5 ~: D) r! g z& H+ _# W& g# K* M. P- ]; M
2.这是request的程序 & N3 L" r" l" z- O. G" E- V// Request a value from Extend # d2 d0 b5 f$ G$ j4 H+ c! R//; T, w; C+ O, L6 g7 p/ I- x8 M4 q
// Initialize the variant that will hold the BSTR. Set the variant's* C: i) P& y2 R
// type flag to indicate the fact that this variant holds a BSTR. Place the7 O% M5 R, I. X* K& N' B. E9 Z2 Q
// BSTR into the variant structure.7 Z& [" @1 P& j# i
! V. [( i7 D- r! k6 [ d0 T$ Y& f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 l5 H, T9 \, h- f' o, h+ z ! ~4 ?, e( O1 V+ i' k3 C. Q+ g* v# j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 v+ ?: e- |: w3 ?9 M VariantInit(&requestVariant[0]); . \/ Z- T7 X' o* r7 N
requestVariant[0].vt = VT_BSTR; 2 `4 v3 H& x# B8 d( B2 G requestVariant[0].bstrVal = itemStr; ! l" I$ }- x( a- M' Q& ] 9 u+ `' ?& E) y( N3 v! m topicStr = SysAllocString((WCHAR *) L"system"); 4 {2 ?1 I+ |4 X4 g' W: p VariantInit(&requestVariant[1]); . G$ N, f! ]4 d: N8 s9 [ requestVariant[1].vt = VT_BSTR;: G6 |* O9 R" B$ s% `2 ~0 `* U
requestVariant[1].bstrVal = topicStr;$ a- G3 P' g a, c5 }5 j! ^
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// Set the DISPPARAMS structure that holds the variant. ( k. Y, t8 s2 e0 l% V" Y- K. q) x 0 g# I2 K2 I4 B$ y [ dp2.rgvarg = requestVariant;) W9 T3 ^9 }' P+ X" B) Z
dp2.cArgs = 2;; d% j$ q4 R+ I; e
dp2.rgdispidNamedArgs = NULL; , n5 w' I, O, M7 { dp2.cNamedArgs = 0; # G) J; g2 |+ R1 Y% P# j3 i; v) r' {+ e
var.vt = VT_EMPTY;1 z& n# S3 W6 w) t
. v5 a4 @" E) c V v% Q* ~// Call IDispatch::Invoke()* z! w1 `2 p6 V4 { e) ~
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hr = m_pDisp->Invoke(; U0 K4 A: O1 S" c' e# g& t
requestID, 1 n. u& \* ]" V& s( ^! s6 ` IID_NULL,/ D3 K1 P# ^% [0 q. D
LOCALE_SYSTEM_DEFAULT, 8 l4 _4 ?& M1 D DISPATCH_METHOD,8 k: s' E6 \# w0 n
&dp2, - K" _; I5 U' j &var, E* P2 _4 u8 n5 f5 p* |
&ei,0 f2 F6 R; e. }6 q* n; W
&uiErr);1 ^6 |0 H, _0 k, S
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SysFreeString(topicStr); $ w: ~3 }2 D* O. H) V6 ` J SysFreeString(itemStr);: o; k) O* X' F% @
请问该程序是获得extend里面的哪个值？ % W; Z* X( R# Z- C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
