diff options
| author | Michael R Sweet <michael.r.sweet@gmail.com> | 2002-05-31 12:47:49 +0000 |
|---|---|---|
| committer | Michael R Sweet <michael.r.sweet@gmail.com> | 2002-05-31 12:47:49 +0000 |
| commit | 778d528093f4314bdc96f9600d0698479e8b7eb1 (patch) | |
| tree | 1c37248b4119863de75c06f557f0bc0ea4d75b21 /src | |
| parent | d5541b5cd6a2584cd8f2470bdfd53b616b954462 (diff) | |
Add Matthias's WIN32 code to get an image from the current window; needs
testing!
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2272 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src')
| -rw-r--r-- | src/fl_read_image_win32.cxx | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/src/fl_read_image_win32.cxx b/src/fl_read_image_win32.cxx index d7e35b58b..6c9617369 100644 --- a/src/fl_read_image_win32.cxx +++ b/src/fl_read_image_win32.cxx @@ -1,5 +1,5 @@ // -// "$Id: fl_read_image_win32.cxx,v 1.1.2.1 2002/05/30 15:09:03 easysw Exp $" +// "$Id: fl_read_image_win32.cxx,v 1.1.2.2 2002/05/31 12:47:49 easysw Exp $" // // WIN32 image reading routines for the Fast Light Tool Kit (FLTK). // @@ -29,15 +29,42 @@ uchar * // O - Pixel buffer or NULL if failed fl_read_image(uchar *p, // I - Pixel buffer or NULL to allocate - int x, // I - Left position - int y, // I - Top position + int X, // I - Left position + int Y, // I - Top position int w, // I - Width of area to read int h, // I - Height of area to read int alpha) { // I - Alpha value for image (0 for none) - return 0; + int x, y; // Looping vars + int d; // Depth of image + uchar *ptr; // Pointer in image data + + + // Allocate the image data array as needed... + d = alpha ? 4 : 3; + + if (!p) p = new uchar[w * h * d]; + + // Initialize the default colors/alpha in the whole image... + memset(p, alpha, w * h * d); + + // Grab all of the pixels in the image, one at a time... + // MRS: there has to be a better way than this! + for (y = 0, ptr = p; y < h; y ++) { + for (x = 0; x < w; x ++, ptr += d) { + COLORREF c = GetPixel(fl_gc, X + x, Y + y); + + ptr[0] = c; + c >>= 8; + ptr[1] = c; + c >>= 8; + ptr[2] = c; + } + } + + return p; } // -// End of "$Id: fl_read_image_win32.cxx,v 1.1.2.1 2002/05/30 15:09:03 easysw Exp $". +// End of "$Id: fl_read_image_win32.cxx,v 1.1.2.2 2002/05/31 12:47:49 easysw Exp $". // |