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 @& t0 ]% I! m! o8 o! n6 H7 S
Name = (WCHAR *) L"Poke";+ F2 b% t' O, Y* {3 G# e4 m
# f( m/ [2 Z. h2 t8 w
hr = m_pDisp->GetIDsOfNames (% ~* x3 H/ J0 a
IID_NULL, // reserved 3 ]& M/ a. v2 r' D' Y' @" Y &Name, // Array of names to get IDs for7 y) Y/ \: }; T. e$ U1 y
1, // # of names in the array% P5 B, A' W2 O& H1 L; G' e8 ~% r
LOCALE_SYSTEM_DEFAULT, // System locale ' L5 C* S5 }0 m/ d O) N: i$ i: g &pokeID); // Array of IDs to fill on output ' ]% W) i, r2 E% D ) m( v1 r! ^7 h4 z& q' Z
if (hr) 8 d f5 H3 R! `1 b9 n9 _ { ; ]! p) h0 D) k' U6 I$ @ MessageBox ("Get Poke Unsuccessful"); * h% c Q1 G2 E; h return; $ ?- g/ L+ b3 K w2 p }2 `9 P% k) H& F Z4 n" G
! d. h( e# ^* \5 Y! z1 J
/**************************传递数据给extend**************************************/9 Q1 a Z5 F8 N% w e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : e, ^' R+ Z. O+ {) a7 ~& m8 | 7 R, A1 y2 H, k# r7 X valueStr = SysAllocString((WCHAR *) L"1232"); - y# F: d0 h7 s% p% m VariantInit(&pokeVariant[0]); ! x: r2 t4 i9 _0 B8 |
pokeVariant[0].vt = VT_BSTR;: u7 Q3 ~ I6 D% `
pokeVariant[0].bstrVal = valueStr;3 h1 {9 m+ e; d$ Y4 t
( q) ^. Z7 q4 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 H" P# z2 i- N4 h
VariantInit(&pokeVariant[1]); - T9 w# y0 W4 i
pokeVariant[1].vt = VT_BSTR; + C3 j1 s3 g. C# \3 L) @3 y pokeVariant[1].bstrVal = itemStr;. m! H7 Y, I! l" U+ P V
; @! e- s H$ J) a7 E topicStr = SysAllocString((WCHAR *) L"system"); + K' a& R8 l' v7 \ VariantInit(&pokeVariant[2]); ]2 i( H) O/ M2 L" I; i+ I8 y pokeVariant[2].vt = VT_BSTR; : `. R W+ m" ]0 @9 k' }4 l pokeVariant[2].bstrVal = topicStr; + j/ L. E6 m$ N" K5 u: N . `2 h5 R) |4 C# |2 E// Set the DISPPARAMS structure that holds the variant.$ o u+ y2 n9 z& j6 q( V
" w3 ]& J5 @4 L) o; D$ S" |9 R" R
dp.rgvarg = pokeVariant;5 K9 v7 @6 f3 \
dp.cArgs = 3; . B$ V( W- F* l+ I, ?2 h, V dp.rgdispidNamedArgs = NULL;* p6 P, {1 g/ K0 B6 c5 P
dp.cNamedArgs = 0; ; _# m! S) X3 C+ T 7 X" g* W' F' z3 j0 [, O! B- s: m// Call IDispatch::Invoke()3 X9 S4 n0 n6 {) l) J5 d; h
, N# r3 p% b+ S6 c
hr = m_pDisp->Invoke(7 K! {4 ^( B4 `5 c& Y) m
pokeID, 9 h$ c. y: q! y y# g2 _ IID_NULL, $ o/ w% H6 F- d8 p7 E LOCALE_SYSTEM_DEFAULT,) U5 j. U5 {6 F, b. K( [
DISPATCH_METHOD, " o) S# v z7 r3 _5 Z1 U. c4 ] &dp,8 l8 U. t& b$ u E
NULL, }" q' v, ?) {; s' s
&ei,* y( f: E8 l4 I% m3 [) J+ ]; U
&uiErr);6 M1 ^* G* ^5 H4 J
% B0 [3 p0 _8 s5 X2 O
SysFreeString(topicStr);4 p3 C9 {% y ]2 c2 G3 d
SysFreeString(itemStr);* k Z; C* Q* _. J# J/ }
SysFreeString(valueStr);. A! D, ^7 ]/ _
6 U4 g& ]6 E: i+ K; P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???- c" o- `0 E1 [; J3 F$ j- J$ d5 n
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????5 q" f- q D. a9 b3 _3 E' ^
( g4 j+ R5 T& Z8 T7 s1 K! G8 v, @% [( ]+ f. f) \
2.这是request的程序* Q; g7 E. k0 W& U& [
// Request a value from Extend3 I5 Q! x9 r4 Z, R K4 q9 ^
//, t; t, t) Y# T
// Initialize the variant that will hold the BSTR. Set the variant's) h/ \- ]* ]. ?1 m1 F& H- k; a/ N
// type flag to indicate the fact that this variant holds a BSTR. Place the . d+ D% o7 [% B) g; c// BSTR into the variant structure.2 ~, f! ?/ E4 T) ?$ F1 h
2 u. d9 z. K! y$ c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 d- w5 @+ n' v; l" W0 i 1 X4 I# A" A2 ^4 Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) `6 l! r" Q6 V) N# e4 G VariantInit(&requestVariant[0]); * b: Q+ Z6 Z; e6 F requestVariant[0].vt = VT_BSTR; 6 u5 o e- N( J% {% K0 x' `9 Z* l requestVariant[0].bstrVal = itemStr; 6 m& v& n+ N' C$ Q, F. j8 f1 X : X" r- n$ O* ~0 x+ W: S9 h5 D topicStr = SysAllocString((WCHAR *) L"system"); ; b6 v1 g4 c" T VariantInit(&requestVariant[1]); ( g+ T! S! b) E1 S4 J+ p requestVariant[1].vt = VT_BSTR; + t: B- T$ @; F9 w. u0 ?& P' p requestVariant[1].bstrVal = topicStr;$ {( u+ Z' i3 `( N& n
( }; b" u R: d2 K f7 v; H// Set the DISPPARAMS structure that holds the variant.7 D; w- V7 k( E: _+ [
2 v8 y5 d6 W( p: s5 F4 F$ O7 z
dp2.rgvarg = requestVariant; 8 C' G! Z) k% t dp2.cArgs = 2;- S; U% o: X- ^8 ]3 r# Q
dp2.rgdispidNamedArgs = NULL;7 B- a _, Z; h7 t8 f4 C" x
dp2.cNamedArgs = 0; * z; f9 ^1 L& Y7 F 5 _1 i; n6 [/ c9 q- w var.vt = VT_EMPTY;! K. i F; ^; {
+ t7 r* o1 L( N7 g8 E2 U$ z2 Q; t// Call IDispatch::Invoke() 4 h2 c3 T& T; J7 [8 A/ z! {. J3 f2 E0 R4 W
hr = m_pDisp->Invoke(9 P( l) L7 X" D5 I2 A
requestID,, q2 p5 D! f- W& R; a- W& ^
IID_NULL, 0 r( ^1 C9 p$ a" D. n- p LOCALE_SYSTEM_DEFAULT, 3 H. ]3 [! J- y4 r$ s9 I' |8 _; e DISPATCH_METHOD,* Q/ P# b V/ v7 t
&dp2,! u5 _4 Z. a+ ]% K9 ]) b! d
&var,2 p9 @; _ F& Z4 Q% _- G
&ei, ! d) E/ f4 N$ U% v0 `3 r/ ]) Z &uiErr); 4 h3 ~! G7 x4 h. z$ G: s, J9 N) S& p / t4 B N) [- N P" l! \ SysFreeString(topicStr);8 r7 {8 n( Y/ f0 q
SysFreeString(itemStr);/ r& |' J9 v# n' _
请问该程序是获得extend里面的哪个值? : W6 s+ h! x0 ?. m. E, 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????