NSView 转换成NSImage，并保存

来源：互联网发布：sql server能卸载吗编辑：程序博客网时间：2024/06/07 09:18

[zwViewlockFocus];//zwView为继承NSView类的一个对象

NSImage *image = [[NSImagealloc] initWithData:[zwViewdataWithPDFInsideRect:[zwViewbounds]]];

[zwViewunlockFocus];

[imagelockFocus];

//先设置下面一个实例

NSBitmapImageRep *bits = [[NSBitmapImageRepalloc]initWithFocusedViewRect:[zwViewframe]];

[imageunlockFocus];

//再设置后面要用到得 props属性

NSDictionary *imageProps = [NSDictionarydictionaryWithObject:[NSNumbernumberWithBool:0]forKey:NSImageCompressionFactor];

//之后转化为NSData 以便存到文件中

NSData *imageData = [bitsrepresentationUsingType:NSPNGFileTypeproperties:imageProps];

//设定好文件路径后进行存储就ok了

[imageData writeToFile:[[[NSStringalloc] initWithFormat:@"~/Documents/test%d.jpg",1]stringByExpandingTildeInPath]atomically:YES]; //保存的文件路径一定要是绝对路径，相对路径不行

0 0