/* return RGB value at specified coordinates*/ COLORREF WINAPI GetPixel(HDC hdc, int x, int y) { HWND hwnd; POINT pt; MWPIXELVAL pixel; MWPALENTRY rgb; hwnd = MwPrepareDC(hdc); if(!hwnd) return CLR_INVALID; pt.x = x; pt.y = y; if(MwIsClientDC(hdc)) ClientToScreen(hwnd, &pt); /* read pixel value*/ GdReadArea(hdc->psd, pt.x, pt.y, 1, 1, &pixel); switch(hdc->psd->pixtype) { case MWPF_TRUECOLOR0888: case MWPF_TRUECOLOR888: /* create RGB colorval from 8/8/8 pixel*/ return PIXEL888TOCOLORVAL(pixel); case MWPF_TRUECOLOR565: /* create RGB colorval from 5/6/5 pixel*/ return PIXEL565TOCOLORVAL(pixel); case MWPF_TRUECOLOR555: /* create RGB colorval from 5/5/5 pixel*/ return PIXEL555TOCOLORVAL(pixel); case MWPF_TRUECOLOR332: /* create RGB colorval from 3/3/2 pixel*/ return PIXEL332TOCOLORVAL(pixel); case MWPF_TRUECOLOR233: /* create RGB colorval from 2/3/3 pixel*/ return PIXEL233TOCOLORVAL(pixel); case MWPF_PALETTE: if(GdGetPalette(hdc->psd, pixel, 1, &rgb)) return RGB(rgb.r, rgb.g, rgb.b); } return CLR_INVALID; }
/* return RGB value at specified coordinates*/ COLORREF WINAPI GetPixel(HDC hdc, int x, int y) { HWND hwnd; POINT pt; MWPIXELVALHW pixel; hwnd = MwPrepareDC(hdc); if(!hwnd) return CLR_INVALID; pt.x = x; pt.y = y; if(MwIsClientDC(hdc)) ClientToScreen(hwnd, &pt); /* read pixel value*/ GdReadArea(hdc->psd, pt.x, pt.y, 1, 1, &pixel); return GdGetColorRGB(hdc->psd, pixel); }