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TRichEdit右键滚屏! s4 F8 X+ g( r0 U1 L6 i9 n7 ]
- p' F. q, E# T$ j6 E! @ void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,
9 s; R: [# B; F% }TShiftState Shift, int X, int Y)
0 J- \: p1 u4 e! j" q3 C' n! w{2 a! [" _) n1 i) A5 `
if(RightButtonFlag)( Q. y! h' `$ \" T# b
{2 {8 C" _* e* e% @8 f
if(RightY>(Y+8))& c5 }) @2 B" o/ Y+ s9 _
{
9 q, r( w2 B& M: D9 {+ X6 n& C) zRightY=Y;9 y" G. |- z* t( M; E# v5 B/ k, I
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);8 c( @" A/ s* g0 k: |- b
}
4 W. l" E n2 F# H" d+ belse if(RightY<(Y-8))$ ]# P; Q4 x1 {! I4 I0 s- o
{; B9 _3 }7 V3 L" L6 B! H9 R( U& ~
RightY=Y;
1 v: |3 T7 i. C7 t; H2 f r: ESendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); o) T9 o t! k
}
: v) j, ^* w1 u. gRichEditDragFlag=true;
% [9 D' N# g! {8 n( B/ M; J}
U. {3 Z) K' {3 D9 d1 h! d" J}
$ _$ z, W8 G7 l//--------------------------------------------------------------% e* Q. m' d# Q* `4 c3 @7 {
void __fastcall TMainForm::RichEditMouseDown(TObject *Sender," I2 y- ^2 T% i% Q
TMouseButton Button, TShiftState Shift, int X, int Y) m5 h6 _2 Q! C2 J4 ?) Q7 q$ X: }
{. F' _ a' d6 R5 F4 c. p
if(Button==mbRight)% t: }9 [5 }; y5 J
{: S- P$ J' ^0 W7 q+ {/ a7 ~
RightButtonFlag=true;
$ j# M' t3 M6 \3 q4 G( P! m+ |! IScreen->Cursor=crHandPoint;
1 y8 T2 l* M0 P$ m3 RRightX=X;* L6 E8 \; k& Q' K2 `4 n
RightY=Y;
7 }9 B! k$ n% I. d& RSetCapture(RichEdit->Handle);6 g9 j2 h9 T4 f y: ]2 \+ U. ~. L8 b
}
* O7 r5 @5 A( K* b( zelse
5 M% N- h- [( c+ t6 B8 _: e0 iRightButtonFlag=false;
* g9 p- V: _5 I$ D3 B, B! c}
3 g! H; G3 y! \+ j//--------------------------------------------------------------1 H# F4 L! W$ s
void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,5 s% N% F( V; f" a1 L* I- Y, [- A
TMouseButton Button, TShiftState Shift, int X, int Y)
# V9 |2 f3 l" k, _4 e{
. l. d! `1 S2 Zif(RightButtonFlag)
4 X" N: L6 F0 `$ m+ c7 {ReleaseCapture();) a) v* Q3 w9 u! ^
if(RichEditDragFlag)5 L& [% z+ i. }# |, \4 l
{
: E9 v( [& n0 V. p" S9 xRightButtonFlag=false;
) S( B& }: l5 S6 @RichEditDragFlag=false;: h$ Z$ E9 I! w4 W0 v0 _
Screen->Cursor=crDefault;
8 e' e7 O# ?7 r* P3 }" y) MRichEdit-> opupMenu=NULL;
$ C( C1 U- y& J; z5 X8 K}
9 t7 w% @+ z2 melse
! L3 |3 V' K ~' Z: S: H7 L{
! M/ O6 u; }# _ k# N9 {RichEdit->opupMenu=RichEditPopupMenu;
5 }1 t* D) z- h}" h" D' M" Y% U% ~! v
}
2 G% d2 Y' n" x8 [" D# S | 
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发表于 2005-1-26 12:25
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