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：9 g& R. \/ o! l5 _! l; ^
Name = (WCHAR *) L"Poke"; 6 L F% y: t6 g & m* V/ g: ~' y2 n9 y& q, ?4 X9 @ hr = m_pDisp->GetIDsOfNames ( * d+ X0 _. C; D u; {- I4 F9 Y6 r# ? IID_NULL, // reserved" L0 }7 d8 ?5 a4 E8 P4 B$ A" W1 u7 I
&Name, // Array of names to get IDs for, R# z. h. p& t9 ~: q2 H
1, // # of names in the array ! t5 t: X# F, @/ b4 r1 Y# w LOCALE_SYSTEM_DEFAULT, // System locale3 W( z8 N# X. S g+ Q, [
&pokeID); // Array of IDs to fill on output 8 Q) S( i+ x, V* G . e9 }: T. t# A: e if (hr) 3 A, m9 u" y- i Q {) {& t+ o2 q$ i& Y
MessageBox ("Get Poke Unsuccessful");4 P5 J, t" C, h4 W
return; 4 I6 |: t$ Y8 g |" ^$ k# E* p4 r } v V _. U' ~" w0 L( t3 H9 `( C z/ L+ y0 M+ E O) _% U z6 u* Z1 k
/**************************传递数据给extend**************************************/ 4 h) d, m' p. R8 d, U8 h pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); k# z3 u! v# z6 M- x' O. d : f6 s) A: g) U0 c, L! Y3 J
valueStr = SysAllocString((WCHAR *) L"1232"); : X8 g" J0 B/ S1 {7 x9 n8 B4 B VariantInit(&pokeVariant[0]); 9 l" X3 X) }5 O& c6 T" ~; X2 C8 Y
pokeVariant[0].vt = VT_BSTR;9 l* l3 ~9 [+ G+ z) ^
pokeVariant[0].bstrVal = valueStr; - i& s3 w( C9 @2 [, A1 U+ @6 F" |$ W. } C$ U4 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" @$ P j% `+ e) C2 z# M
VariantInit(&pokeVariant[1]); " x0 `) U6 m+ d3 R
pokeVariant[1].vt = VT_BSTR; ( u m2 n) H1 z# U# f- `; } pokeVariant[1].bstrVal = itemStr; ' _' y8 c: @& t& G4 S; z0 t" m5 B3 r( j2 o
topicStr = SysAllocString((WCHAR *) L"system"); 6 W, m$ t# S8 D% M7 ^# j VariantInit(&pokeVariant[2]); ! F+ \& Q( \8 E) c7 Q1 k$ Y5 O pokeVariant[2].vt = VT_BSTR;8 z8 L. V. e3 Y* `. \$ P/ j
pokeVariant[2].bstrVal = topicStr; : o. ]; y% C6 H( u% y3 A' h1 c$ ~4 m) l4 J2 x
// Set the DISPPARAMS structure that holds the variant. 1 H0 \- Q: ]' b3 G; |9 Y% `. I! x. `5 N- q( {
dp.rgvarg = pokeVariant;; `4 o- l `, s
dp.cArgs = 3; % H4 L" C& k0 U- E; N7 z dp.rgdispidNamedArgs = NULL; & w6 J3 r1 E' G4 x6 @/ ]0 [ dp.cNamedArgs = 0; . V4 \( q4 N( ~0 C z% d/ K! Z, D* y6 [( C) n
// Call IDispatch::Invoke()1 Q# a# T- ^+ g5 ?
/ @: l1 b- [6 b _$ H
hr = m_pDisp->Invoke(% k! Z& ]/ x5 c7 V/ R0 `
pokeID, 1 c$ ^% F- t8 B* ]4 N' R" I IID_NULL,5 A* O+ \& G) m$ P
LOCALE_SYSTEM_DEFAULT,6 |2 u2 a: |; P8 b5 L
DISPATCH_METHOD, 8 x- a# ~0 m' M" I! u9 r' O &dp, $ |; J" I. {5 p NULL, $ V I, K6 B6 w &ei, : V# j% N9 |! v4 r6 |# M/ R! R5 N, S &uiErr);" G, }" V/ ]" r. P- @8 ^& t
3 |% Z4 h' q5 p6 \5 e0 A SysFreeString(topicStr);# d2 P- |. c; |3 j, V& T
SysFreeString(itemStr); 7 M) M& p7 o L* Q. g5 V) M7 _ SysFreeString(valueStr);. F. z6 F& h) v- j# n- B; g
6 M9 w z) D; V8 ?' f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？？？ ) M: k ~9 u7 H- X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？？？？ 6 [. h- S7 T9 l9 ^3 e& R- h% l9 P% K5 ^5 C g+ x
" p7 }, F( x' i5 N: p" P! z: A. u2.这是request的程序 6 @5 z( Z1 j1 n, [% F8 T! o// Request a value from Extend 6 u2 M0 @5 D, l* I// ! X6 @# T* P; P Z. i// Initialize the variant that will hold the BSTR. Set the variant's $ j: {/ [3 M! r$ K7 m// type flag to indicate the fact that this variant holds a BSTR. Place the' g/ {2 O2 U, @! g
// BSTR into the variant structure.: {, R l# H, c
* y# r% U7 {* B. [( {! W
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 _8 C' q, Q3 ^, E u( w8 E# O ! I2 m% E1 b/ p8 A, e. k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 |1 k9 r) V! i2 z0 G, {! ~ VariantInit(&requestVariant[0]); 2 M9 }$ T3 N/ T3 f) F6 ] requestVariant[0].vt = VT_BSTR;* a& a$ x5 f1 k0 F7 J
requestVariant[0].bstrVal = itemStr; 5 r3 f3 ], s9 T! V0 d9 A& F! N- d0 F# H- c5 j! [
topicStr = SysAllocString((WCHAR *) L"system"); " V( A3 d4 M, } b VariantInit(&requestVariant[1]); ' K( b. O: i& H# r1 e! u requestVariant[1].vt = VT_BSTR; ' w: u. H- P% @ requestVariant[1].bstrVal = topicStr;: |" O. `$ _8 w
7 F' w }/ s4 U; \4 n
// Set the DISPPARAMS structure that holds the variant.6 u3 H& e6 K& A% U
) T: I9 V! j5 n/ | dp2.rgvarg = requestVariant;3 S# d" X& ~# o& u. D. i
dp2.cArgs = 2;0 L! t' [7 L/ v
dp2.rgdispidNamedArgs = NULL;3 @. {: R2 t+ b* w* S) y9 ^# S9 x" ~
dp2.cNamedArgs = 0;- E g* C; e4 h/ S
' ~' h8 X% G v$ V0 r% q var.vt = VT_EMPTY;% a) D0 x, S7 d- H
$ U. g5 y7 k6 b1 G9 A" F! b// Call IDispatch::Invoke(): q& n/ w- u2 ?, c# h0 W( y. e
/ U1 e5 b5 L3 O* C& N# u
hr = m_pDisp->Invoke(4 U4 s5 K! i) A. z! z; ?; o+ t7 l( R
requestID,, v( X) T7 I1 M& w: M
IID_NULL,0 B0 w2 z# s' P4 i( }, J3 X
LOCALE_SYSTEM_DEFAULT, " X. m- ~. F1 K3 X5 ~ DISPATCH_METHOD, 7 e: Y- i( X* v+ ` &dp2,4 F0 }* o) ]5 S# ?& T+ x0 I: H
&var, 8 l! u! u! j" m6 g; j4 l' {0 k/ D &ei, : F/ _+ g0 o) G5 [! w$ W &uiErr);. `6 V8 |6 Y% S2 T$ Q/ t2 [
2 `8 D/ l/ i* m6 C& F7 N1 T SysFreeString(topicStr); 2 l% {& e( x' x# J SysFreeString(itemStr);4 S, p! E0 A, F0 u5 V. i( p. z3 ~
请问该程序是获得extend里面的哪个值？; z% _& I) E: Q/ H5 d
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
