节选的库中判断图片格式的代码(判断jpg,png,gif,tiff)

load = function(path){ 
				//var fullpath = ..io.exist(path)
				//if( fullpath ) return dll.ImageLoadW(owner.hImage,fullpath); 
				 
				var buffer = ..string.loadBuffer(path);  
				if( buffer ){
					if( buffer[1] == 0xFF &&  buffer[2] == 0xD8 ){
						path="*.jpg"
					}
					elseif( buffer[1] == 0x89 &&  buffer[2] == 0x50 &&  buffer[3] == 0x4e &&  buffer[4] == 0x47){
						path="*.png"
					} 
					elseif( buffer[1] == 0x47 &&  buffer[2] == 0x49 &&  buffer[3] == 0x46){
						path="*.gif"
					}
					elseif( buffer[1] == 0x0C &&  buffer[2] == 0xED){
						path="*.tiff"
					}
					return dll.ImageFromStringB(owner.hImage,buffer,#buffer,path);
				}
			}