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再学GDI+[81]: TGPImage（1） - 显示图像2012-05-21 博客园 万一已知 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;