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[Delphi]再学GDI+[81]: TGPImage(1) - 显示图像 [复制链接]

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孤独雪狼
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只看楼主 倒序阅读 0 发表于: 2012-07-22

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:

复制代码
  1. function DrawImage(image: TGPImage; const point: TGPPointF): TStatus; overload;
  2. function DrawImage(image: TGPImage; x, y: Single): TStatus; overload;
  3. function DrawImage(image: TGPImage; const rect: TGPRectF): TStatus; overload;
  4. function DrawImage(image: TGPImage; x, y, width, height: Single): TStatus; overload;
  5. function DrawImage(image: TGPImage; const point: TGPPoint): TStatus; overload;
  6. function DrawImage(image: TGPImage; x, y: Integer): TStatus; overload;
  7. function DrawImage(image: TGPImage; const rect: TGPRect): TStatus; overload;
  8. function DrawImage(image: TGPImage; x, y, width, height: Integer): TStatus; overload;
  9. function DrawImage(image: TGPImage; destPoints: PGPPointF; count: Integer): TStatus; overload;
  10. function DrawImage(image: TGPImage; destPoints: PGPPoint; count: Integer): TStatus; overload;
  11. function DrawImage(
  12. 　image: TGPImage;
  13. 　x, y, srcx, srcy, srcwidth, srcheight: Single;
  14. 　srcUnit: TUnit
  15. ): TStatus; overload;
  16. function DrawImage(image: TGPImage;
  17. 　const destRect: TGPRectF;
  18. 　srcx, srcy, srcwidth, srcheight: Single;
  19. 　srcUnit: TUnit;
  20. 　imageAttributes: TGPImageAttributes = nil;
  21. 　callback: DrawImageAbort = nil;
  22. 　callbackData: Pointer = nil
  23. ): TStatus; overload;
  24. function DrawImage(
  25. 　image: TGPImage;
  26. 　destPoints: PGPPointF;
  27. 　count: Integer;
  28. 　srcx, srcy, srcwidth, srcheight: Single;
  29. 　srcUnit: TUnit;
  30. 　imageAttributes: TGPImageAttributes = nil;
  31. 　callback: DrawImageAbort = nil;
  32. 　callbackData: Pointer = nil
  33. ): TStatus; overload;
  34. function DrawImage(image: TGPImage;
  35. 　x, y, srcx, srcy, srcwidth, srcheight: Integer;
  36. 　srcUnit: TUnit
  37. ): TStatus; overload;
  38. function DrawImage(
  39. 　image: TGPImage;
  40. 　const destRect: TGPRect;
  41. 　srcx, srcy, srcwidth, srcheight: Integer;
  42. 　srcUnit: TUnit;
  43. 　imageAttributes: TGPImageAttributes = nil;
  44. 　callback: DrawImageAbort = nil;
  45. 　callbackData: Pointer = nil
  46. ): TStatus; overload;
  47. function DrawImage(
  48. 　image: TGPImage;
  49. 　destPoints: PGPPoint;
  50. 　count, srcx, srcy, srcwidth, srcheight: Integer;
  51. 　srcUnit: TUnit;
  52. 　imageAttributes: TGPImageAttributes = nil;
  53. 　callback: DrawImageAbort = nil;
  54. 　callbackData: Pointer = nil
  55. ): TStatus; overload;
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只看该作者 2 发表于: 2012-07-23
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