0xffff0000表红色,意思是: A:ff=255 R:ff=255 G:00=0 B:00=0 可如下将(255,0,0,255)转成0xffff0000并输出: inline DWORD RGBAToHexARGB(unsigned char r,unsigned char g,unsigned char b,unsigned char a){ DWORD rs=(r<<16)|(g<<8)|b|(a<<24); return rs;} DWORD color=