我有一个unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
uses MMSystem;
{$R *.dfm}
var
buf: Array of byte;
wh: TWaveHdr;
hOut: HWAVEOUT;
fmt: TWaveFormatEx;
count: integer;
function GetWaveFmtData(path: string; var fmt: TWaveFormatEx ): Boolean;
var
hFile: HMMIO;
ckiRIFF,ckiFmt,ckiData: TMMCKInfo;
begin
Result := False;
hFile := mmioOpen(PChar(path), nil, MMIO_READ);
if hFile = 0 then Exit;
ZeroMemory(@ckiRIFF, SizeOf(TMMCKInfo));
ZeroMemory(@ckiFmt, SizeOf(TMMCKInfo));
ZeroMemory(@ckiData, SizeOf(TMMCKInfo));
ckiRIFF.fccType := mmioStringToFOURCC('WAVE', 0);
ckiFmt.ckid := mmioStringToFOURCC('fmt', 0);
ckiData.ckid := mmioStringToFOURCC('data', 0);
ZeroMemory(@fmt, SizeOf(TWaveFormatEx));
mmioDescend(hFile, @ckiRIFF, nil, MMIO_FINDRIFF);
if (ckiRIFF.ckid = FOURCC_RIFF) and (ckiRIFF.fccType = mmioStringToFOURCC('WAVE',0)) and
(mmioDescend(hFile, @ckiFmt, @ckiRIFF, MMIO_FINDCHUNK) = MMSYSERR_NOERROR) and
(mmioRead(hFile, @fmt, ckiFmt.cksize) = ckiFmt.cksize) and
(mmioAscend(hFile, @ckiFmt, 0) = MMSYSERR_NOERROR) and
(mmioDescend(hFile, @ckiData, @ckiRIFF, MMIO_FINDCHUNK) = MMSYSERR_NOERROR) then
begin
SetLength(buf, ckiData.cksize);
Result := (mmioRead(hFile, PAnsiChar(buf), ckiData.cksize) = ckiData.cksize);
end;
mmioClose(hFile, 0);
end;
Procedure CallBack(
hwo :HWAVEOUT;
uMsg :UINT ;
dwInstance :DWORD;
dwParam1 :DWORD;
dwParam2 :DWORD
);stdcall;
begin
{Need check the message here but for now lets just make sure
that we get called }
ShowMessage('WaveOut');
end;
procedure TForm1.Button1Click(Sender: TObject);
const
path = 'fire.wav';
begin
GetWaveFmtData(path, fmt);
wh.lpData := PAnsiChar(buf);
wh.dwBufferLength := Length(buf);
wh.dwBytesRecorded := 0;
wh.dwUser := 0;
wh.dwFlags := 0;
wh.dwLoops := 1;
wh.lpNext := nil;
wh.reserved := 0;
//waveOutClose(hOut);
if waveOutOpen(@hOut, WAVE_MAPPER, @fmt, DWORD(@CallBack),
Handle,WAVE_MAPPED and CALLBACK_FUNCTION) = MMSYSERR_NOERROR then
begin
count:=count+1;
Edit1.Text:=IntToStr(count);
end;
waveOutPrepareHeader(hOut, @wh, SizeOf(TWaveHdr));
waveOutWrite(hOut, @wh, SizeOf(TWaveHdr));
end;
end.
，有一个CListCtrl，即有行和列。我希望在网格单元格中显示Grid layout文本，但它们会被截断并且不会完整显示，即它们会以省略号显示。
我已将单元格的限制设置为32.如果要插入的multiline文本超过一半，我会在中途插入换行符和回车符CString。< / p>
不幸的是，这导致两行的截断CString
如何确保顶部的字符串不会被截断并从第二行正确继续，如果超过32，它可能会被...截断？