獲取GDI+所支持的可編碼、可解碼的圖像格式
其實這和 TGPImage 是沒有關系的.
本例效果圖:
代碼文件:unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Memo1: TMemo;
procedure FormCreate(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
uses GDIPOBJ, GDIPAPI;
procedure TForm1.FormCreate(Sender: TObject);
var
num, size, i: Cardinal;
ImageCodecInfo: PImageCodecInfo;
Type
ArrImageCode = array of TImageCodecInfo;
begin
Memo1.Clear;
{獲取 GDI+ 可以編碼的圖像格式:}
GetImageEncodersSize(num, size);
GetMem(ImageCodecInfo, size);
GetImageEncoders(num, size, ImageCodecInfo);
Memo1.Lines.Add('GDI+ 可以編碼的圖像格式有:');
for i := 0 to num - 1 do
Memo1.Lines.Add(ArrImageCode(ImageCodecInfo)[i].MimeType);
FreeMem(ImageCodecInfo, size);
{獲取 GDI+ 可以解碼的圖像格式:}
GetImageDecodersSize(num, size);
GetMem(ImageCodecInfo, size);
GetImageDecoders(num, size, ImageCodecInfo);
Memo1.Lines.Add('');
Memo1.Lines.Add('GDI+ 可以解碼碼的圖像格式有:');
for i := 0 to num - 1 do
Memo1.Lines.Add(ArrImageCode(ImageCodecInfo)[i].MimeType);
FreeMem(ImageCodecInfo, size);
end;
end.
窗體文件:object Form1: TForm1
Left = 0
Top = 0
Caption = 'Form1'
ClientHeight = 251
ClientWidth = 206
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object Memo1: TMemo
Left = 0
Top = 0
Width = 201
Height = 251
Align = alLeft
Lines.Strings = (
'Memo1')
ScrollBars = ssBoth
TabOrder = 0
ExplicitHeight = 239
end
end