diff options
| -rw-r--r-- | areaplan.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/areaplan.md b/areaplan.md index 3651f0b..324a594 100644 --- a/areaplan.md +++ b/areaplan.md @@ -80,12 +80,12 @@ func repaint(s *sysData) HRESULT { We can use GDI+ (gdiplus.dll) and its flat API for drawing... ```c GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride, PixelFormat format, BYTE* scan0, GpBitmap** bitmap); -GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics) -GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x, INT y) -GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics) -GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image) +GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics); +GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x, INT y); +GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics); +GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image); ``` -(`GpBitmap` extends `GpImage`.) The only problem is the pixel format: the most appropriate one is `PixelFormat32bppARGB`, which is not premultiplied, but the components are in the wrong order... (there is no RGBA pixel format in any bit width) (TODO `GdipDisposeImage` seems wrong since it bypasses `~Bitmap()` and goes right for `~Image()` but I don't see an explicit `~Bitmap`...) +(`GpBitmap` extends `GpImage`.) The only problem is the pixel format: the most appropriate one is `PixelFormat32bppARGB`, which is not premultiplied, but the components are in the wrong order... (there is no RGBA pixel format in any bit width) (TODO `GdipDisposeImage` seems wrong since it bypasses `~Bitmap()` and goes right for `~Image()` but I don't see an explicit `~Bitmap()`...) Disregarding the RGBA issue, the draw code would be ```go |