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:! s Q% v$ P5 V. H8 S. M( I7 c$ ]
Name = (WCHAR *) L"Poke"; ; H }, _( S2 M( ^ + B: o% P5 g0 K9 [
hr = m_pDisp->GetIDsOfNames (2 g+ F1 Z6 \# e. `* I' m+ X
IID_NULL, // reserved8 }. @8 V1 A! x! f
&Name, // Array of names to get IDs for ! V7 [ ~9 A3 g: v8 j: D8 b7 \ 1, // # of names in the array2 ?' W$ h% M" L/ T7 F( S4 j Y
LOCALE_SYSTEM_DEFAULT, // System locale 3 N- `# _* y/ K( v &pokeID); // Array of IDs to fill on output , W+ u. X2 h. ]' M $ k$ r5 |- v5 v if (hr)$ u1 Z2 j0 z) W4 _' P c
{* \9 s6 S' b! R+ ^9 Z0 `- R% N% f
MessageBox ("Get Poke Unsuccessful"); $ u& `( D( ~: m7 h# ^8 r, ] return; 5 w4 h# F- z6 {* T }8 |. o" a! F2 ~& T9 Q
9 t$ {6 X7 y. |, t j
/**************************传递数据给extend**************************************/6 q* z& ^+ ?: i/ s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / {: y2 m+ u8 }1 W. L5 V : j9 h5 Y4 t1 v/ |- N* B1 A g9 n valueStr = SysAllocString((WCHAR *) L"1232"); ; d, E3 W* {* H VariantInit(&pokeVariant[0]); * u; p/ M. N) u+ w1 d7 B! p pokeVariant[0].vt = VT_BSTR; 1 Y( N4 `% T0 W, ^8 W+ _3 U: F pokeVariant[0].bstrVal = valueStr; ; E9 y8 x4 h: i! `; t 0 }, G1 ~" A2 u3 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ y4 ^! k' l, d8 A* r
VariantInit(&pokeVariant[1]); & E& p% Y- F$ G0 |8 l1 i: O pokeVariant[1].vt = VT_BSTR; ' V% @% M$ [& a% W pokeVariant[1].bstrVal = itemStr;2 e, a# v; i% Y7 q
+ e% m/ W1 H- R topicStr = SysAllocString((WCHAR *) L"system");( P- R( k1 P1 c* R' \$ a3 \
VariantInit(&pokeVariant[2]); 4 O* \ t' D2 x% m2 w pokeVariant[2].vt = VT_BSTR; $ \. J; N1 Z7 I4 Y pokeVariant[2].bstrVal = topicStr;. K) L% D4 }/ @7 n: b. m
+ j* i9 m7 R; E; b
// Set the DISPPARAMS structure that holds the variant.# ?( m& f( S9 u) |9 G& `" x+ |
6 ?, W" ^: N6 f* d" D/ d. R# {
dp.rgvarg = pokeVariant;) T% l; ^" _0 |7 X5 K0 C
dp.cArgs = 3;9 F/ Z. O: Q `3 z' \
dp.rgdispidNamedArgs = NULL; * f/ M0 z2 f+ c( |9 N: e* L: Q dp.cNamedArgs = 0;$ o$ j! S, [2 y% z: t, v$ a. i
4 k: f, E. |/ i, N/ N
// Call IDispatch::Invoke() 7 Y3 l" W9 F, F1 G) o+ U7 O5 b / i$ w" q: Q3 R/ S hr = m_pDisp->Invoke(/ u# L9 Y+ S) Z2 a, e
pokeID,' I2 Z" {! n# j
IID_NULL, 4 x7 }- A/ I( b& S' N* x1 c/ H: C LOCALE_SYSTEM_DEFAULT,. x; v2 P# S! i y9 H
DISPATCH_METHOD, 7 d7 y: G) {2 L3 k- d. _$ u &dp, 8 g" m/ Y& ]0 r! h% G8 } NULL,( M* e* v( A, { p8 T; W
&ei,7 s, k7 r: v3 z2 y, G8 u% _
&uiErr); 0 j& z3 J7 R- T1 f0 Y6 W( A4 ^1 h3 b* k2 ~4 {8 M
SysFreeString(topicStr);$ }+ z! t( n% y2 r/ F* M7 i
SysFreeString(itemStr); 3 ~* G: \( f0 ~1 N' c/ O1 n( ~ SysFreeString(valueStr);. {, p) y( J# c3 I$ z2 x, y
; o p" q: G+ |7 K9 `1 @0 t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???8 q) h/ N; @1 t6 `2 d
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????3 d6 m# t( k# Z& U2 j
: t! }% d2 \- ~4 O L9 W4 q" H' Y; \+ K1 D6 }2 J* Z
2.这是request的程序$ Q8 r3 {8 I3 C H3 }
// Request a value from Extend ( S7 k' }# |5 c) T//" [6 v7 U% ^7 u
// Initialize the variant that will hold the BSTR. Set the variant's - S/ t/ C+ t \3 `. T N% c: w, I// type flag to indicate the fact that this variant holds a BSTR. Place the% J6 _; x& d2 z6 M" v
// BSTR into the variant structure.0 F9 A2 a% C q, u1 U% R8 [
6 P+ u4 t+ F7 P# |* X; K3 V; X6 ^8 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 E. c! w( H0 L" U( c! M% D+ i5 S* n; W ; ~! ^; B7 e& k, b8 M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : P3 F! g" a$ Y- @- Z VariantInit(&requestVariant[0]); ; |! u! x, _. s6 ~; Y- U4 F0 k
requestVariant[0].vt = VT_BSTR; 5 x; H# p* V: J2 t requestVariant[0].bstrVal = itemStr;; @# H, g7 Q7 Y) ?& r
* {0 A3 e' {! T- L7 W! N+ k
topicStr = SysAllocString((WCHAR *) L"system");8 B8 n% p1 T; J5 N% ?* G2 \$ O
VariantInit(&requestVariant[1]); 7 |5 c* X+ c% E. U s) ] p/ ^5 u requestVariant[1].vt = VT_BSTR;' x/ R2 q" H- l7 t
requestVariant[1].bstrVal = topicStr;8 M% ~! q8 K+ ]* O, B8 L; f) ]2 U
4 j2 V. Z) j& s1 }/ f2 J
// Set the DISPPARAMS structure that holds the variant. + k$ b' [0 E! Z- z5 O6 w ) k }9 Q8 n* x5 \8 J- L H; ?0 c dp2.rgvarg = requestVariant;. \: y6 E% A6 \7 s7 _ @- L, `
dp2.cArgs = 2;" X3 J4 B6 m7 m6 |" @
dp2.rgdispidNamedArgs = NULL;. C7 k. a; `* I) C. w, O
dp2.cNamedArgs = 0;: {( ]0 T4 C% U C3 d4 r. A6 P+ L
$ @* f! b, S. b8 n" U4 a2 _. ]& H
var.vt = VT_EMPTY;& A+ M: n$ i4 ^
% P7 E8 N" B& p% j: \8 j/ E0 L// Call IDispatch::Invoke()* C+ L# o* j. W1 T2 u2 V5 S/ K
$ j" J- C$ V! B* J& _
hr = m_pDisp->Invoke(8 I3 w; J- t8 O: g" k# [
requestID,% ^6 w( p* K9 }' X
IID_NULL, # u* O) }3 K3 I" ^1 Y/ ] LOCALE_SYSTEM_DEFAULT,9 B0 O) D( Y4 B6 H' ]9 ? `+ v2 r
DISPATCH_METHOD, ( _$ i* @$ L! H9 y1 ? &dp2, ( h) }: H' D$ Z8 F( b5 w8 A. X+ D &var, ) E+ O0 L0 l. Q& x7 ^ &ei, O+ [: K4 w ]' ]. u &uiErr); _9 w# E+ R/ E. t4 ~
5 @) C( I# V" q8 C# Z( H$ {
SysFreeString(topicStr);; G l" C* H9 k: a9 O5 i/ e8 h
SysFreeString(itemStr); , N. r/ t8 A+ o/ ?, ?4 h, L请问该程序是获得extend里面的哪个值? # L. b. l& E; N6 m+ Z% G8 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????