再學GDI+[81]: TGPImage(1) - 顯示圖像

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

TGPGraphics.DrawImage 函數有太多重載了, 一起列在這吧: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;