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:% V2 `2 Y3 K3 _5 a, |( y
Name = (WCHAR *) L"Poke"; T8 P8 n! _. ~ % _; j' Z/ {" X0 r8 |- q8 B4 A0 ` hr = m_pDisp->GetIDsOfNames ( 2 N" G0 o2 K7 a& _5 d/ | IID_NULL, // reserved: l; D' h# d7 |; D
&Name, // Array of names to get IDs for& ]6 P3 v& A, F5 N1 {
1, // # of names in the array U$ m9 y6 D- K' b, ^
LOCALE_SYSTEM_DEFAULT, // System locale* ]9 i# f( j8 D9 z
&pokeID); // Array of IDs to fill on output6 k; A9 C" s1 J, h
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if (hr) U* d; h! x, \( I M { 4 t7 O9 W: R3 K: a+ ~; l# u6 i MessageBox ("Get Poke Unsuccessful"); 8 O/ V$ b) P0 X3 g& K( S return; 9 M5 K2 L* X4 a) g/ y }0 d2 G" Q1 F" f& i+ z7 p7 M: m; v
7 B" s* n4 Z Q3 |, j+ o/**************************传递数据给extend**************************************/ b. R/ F/ ~" [# r# d, M! s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ q- H1 N' s$ S: {8 `3 ]7 n& o5 Z5 X
& ]/ [4 R9 h/ s valueStr = SysAllocString((WCHAR *) L"1232"); $ o( v' z7 g! `5 H& o! g1 _ VariantInit(&pokeVariant[0]); - U- C" R. g7 w* Q9 v; a pokeVariant[0].vt = VT_BSTR;- h E; J' p) A/ b* [& w2 k% Q6 V
pokeVariant[0].bstrVal = valueStr; 9 N% }) x0 J% l' c7 l4 [! ^& h1 \8 X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ z# M' I% p% u- ?' Y8 Z
VariantInit(&pokeVariant[1]); 7 u4 n7 b9 k$ P( B- Z
pokeVariant[1].vt = VT_BSTR; / D r% v5 k$ _% E, _- W- T pokeVariant[1].bstrVal = itemStr;* n N4 F7 L+ e# B& H/ K- m; f+ f. p" Q
/ o$ ]/ ~6 T3 m5 @ topicStr = SysAllocString((WCHAR *) L"system"); 1 i/ T2 H+ J: |: l% A VariantInit(&pokeVariant[2]); M$ r/ ^& @+ u( B3 x" k$ d; J pokeVariant[2].vt = VT_BSTR; 1 r( r) F Q/ ?$ P7 U pokeVariant[2].bstrVal = topicStr;7 W5 H$ i, B; F1 G- K
. Q. `9 H5 i) r1 i+ h+ R. ^// Set the DISPPARAMS structure that holds the variant. ; P* L' y( M T8 Y# _3 I3 v$ K0 ~. b% N: D$ I
dp.rgvarg = pokeVariant; 4 v" o% x' o# X% e: T2 | dp.cArgs = 3;0 n( v- d+ Y7 _ o
dp.rgdispidNamedArgs = NULL; E$ Z8 H" p+ L/ X# O$ }' ]
dp.cNamedArgs = 0;. Q% { H9 J; {1 g6 P; {
1 z. @6 ?, N0 J1 `+ G1 d4 J, [: M// Call IDispatch::Invoke() : s; _( ?& I( @2 p# w# }& j8 C 8 A" G! d% w3 \5 n2 g3 E hr = m_pDisp->Invoke( 5 t! V( L& D4 B. C pokeID,1 d9 x1 E3 B& x; |& F" j. z. S
IID_NULL,' f8 y$ j: D: ^; C
LOCALE_SYSTEM_DEFAULT, ; R0 K) |3 n2 @5 z- x DISPATCH_METHOD,. e, u1 ^& G7 |- H9 A' G
&dp,& z" ?0 D* B# ^1 Q x
NULL,3 x6 j4 { T% ~: O; |3 x; Z9 i
&ei,9 d3 y5 A) z8 O3 |& K4 S
&uiErr); , `- H( Y% ~& a Z$ K; s9 Q+ E9 E! s# M( Y7 {; g8 s5 x7 z* P M; w
SysFreeString(topicStr); 2 `9 ]1 G0 M9 Z" ?4 [1 F SysFreeString(itemStr);3 u, q4 i& A4 f( @
SysFreeString(valueStr); 6 c0 l& y; f% g! `8 q" o4 H; [7 F5 I- K4 F Z, g2 h1 w
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??? . e" s/ D! Y6 S; V4 n) L7 h4 U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????) U1 x0 j" t$ |: [ e% R
& u# }. r' S+ t8 F( S0 ?" X' e % O f5 K# \+ Y: K' O2 {2.这是request的程序4 J8 I* T# K/ i( B0 v+ \
// Request a value from Extend 8 i* ~# n4 f8 i9 L$ H k' r( m// / O1 s# O! k( ]" q// Initialize the variant that will hold the BSTR. Set the variant's / Q+ A. h$ U+ l7 i& g! H// type flag to indicate the fact that this variant holds a BSTR. Place the5 b/ `/ K4 P: `( i! V
// BSTR into the variant structure.' X. Q( J# r' f0 o+ u$ m7 X1 @
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% i( ?- u0 t7 B4 B7 ~- v
$ m$ `# x! I5 N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 r8 R) m5 s, F. {
VariantInit(&requestVariant[0]); # Q% r9 J7 M- l7 N8 D requestVariant[0].vt = VT_BSTR; / g+ H$ L6 n" J2 w- P, T. r requestVariant[0].bstrVal = itemStr; $ i8 n: a) x" F% _4 a/ X* o; @( {/ M- P/ b; m! n4 Z5 k3 Z8 A: ~1 a
topicStr = SysAllocString((WCHAR *) L"system");9 S) b% ]/ h2 J' K4 t
VariantInit(&requestVariant[1]); % |6 F8 K6 ~: X( h5 B/ c requestVariant[1].vt = VT_BSTR;9 }5 |8 W- Q, d ]+ S* F
requestVariant[1].bstrVal = topicStr; 6 A0 g* y/ @7 {0 h$ c7 l0 y; H6 t3 A$ E+ |& K
// Set the DISPPARAMS structure that holds the variant. ! a+ q/ J; p9 \7 x/ l7 B* _- d3 d" l) g
dp2.rgvarg = requestVariant; 1 n6 p* U( i2 w( N dp2.cArgs = 2; & @* m7 D8 B6 s dp2.rgdispidNamedArgs = NULL;( Q0 h8 w: y- u+ N6 [; e D) Y+ N
dp2.cNamedArgs = 0;' p E" L, K( L) a8 G j0 w