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再学GDI+[81]: TGPImage(1) - 显示图像

时间:2012-05-23 | 栏目:Delphi教程 | 点击:

已知 GDI+ 可以支持的图像格式: BMP、JPEG、GIF、TIFF、PNG、ICO、WMF、EMF

TGPGraphics.DrawImage 函数有太多重载了, 一起列在这吧:function DrawImage(image: TGPImage; const point: TGPPointF): TStatus; overload;
function DrawImage(image: TGPImage; x, y: Single): TStatus; overload;
function DrawImage(image: TGPImage; const rect: TGPRectF): TStatus; overload;
function DrawImage(image: TGPImage; x, y, width, height: Single): TStatus; overload;
function DrawImage(image: TGPImage; const point: TGPPoint): TStatus; overload;
function DrawImage(image: TGPImage; x, y: Integer): TStatus; overload;
function DrawImage(image: TGPImage; const rect: TGPRect): TStatus; overload;
function DrawImage(image: TGPImage; x, y, width, height: Integer): TStatus; overload;
function DrawImage(image: TGPImage; destPoints: PGPPointF; count: Integer): TStatus; overload;
function DrawImage(image: TGPImage; destPoints: PGPPoint; count: Integer): TStatus; overload;
function DrawImage(
 image: TGPImage;
 x, y, srcx, srcy, srcwidth, srcheight: Single;
 srcUnit: TUnit
): TStatus; overload;
function DrawImage(image: TGPImage;
 const destRect: TGPRectF;
 srcx, srcy, srcwidth, srcheight: Single;
 srcUnit: TUnit;
 imageAttributes: TGPImageAttributes = nil;
 callback: DrawImageAbort = nil;
 callbackData: Pointer = nil
): TStatus; overload;
function DrawImage(
 image: TGPImage;
 destPoints: PGPPointF;
 count: Integer;
 srcx, srcy, srcwidth, srcheight: Single;
 srcUnit: TUnit;
 imageAttributes: TGPImageAttributes = nil;
 callback: DrawImageAbort = nil;
 callbackData: Pointer = nil
): TStatus; overload;
function DrawImage(image: TGPImage;
 x, y, srcx, srcy, srcwidth, srcheight: Integer;
 srcUnit: TUnit
): TStatus; overload;
function DrawImage(
 image: TGPImage;
 const destRect: TGPRect;
 srcx, srcy, srcwidth, srcheight: Integer;
 srcUnit: TUnit;
 imageAttributes: TGPImageAttributes = nil;
 callback: DrawImageAbort = nil;
 callbackData: Pointer = nil
): TStatus; overload;
function DrawImage(
 image: TGPImage;
 destPoints: PGPPoint;
 count, srcx, srcy, srcwidth, srcheight: Integer;
 srcUnit: TUnit;
 imageAttributes: TGPImageAttributes = nil;
 callback: DrawImageAbort = nil;
 callbackData: Pointer = nil
): TStatus; overload;

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