怎样实现截图到剪贴板？

rock_wolf

类似qq截图的功能。看了下自带截图只能保存为文件。是不是需要用到win32 api了？需要用哪些函数呢？

kevinqq

TC自带的像皮筋的示例里面 有写好的现成的方法 SetClipboardBmp

续花丶

http://bbs.tyuyan.com/forum.php? ... A%E5%88%87%E6%9D%BF   是不是要这个..

rock_wolf

续花丶 发表于 2015-10-12 16:03
http://bbs.tyuyan.com/forum.php?mod=viewthread&tid=46562&highlight=%E5%89%AA%E5%88%87%E6%9D%BF   是 ...

这个插件跟TC自带截图函数结合使用貌似可以实现。但是中途需要在硬盘生成一个BMP文件。能否省去这一步直接在内存里完成？

rock_wolf

kevinqq 发表于 2015-10-13 09:36
TC自带的像皮筋的示例里面 有写好的现成的方法 SetClipboardBmp

非常感谢

rock_wolf

kevinqq 发表于 2015-10-13 09:36
TC自带的像皮筋的示例里面 有写好的现成的方法 SetClipboardBmp

大神!关于橡皮筋事例.SetClipboardBmp函数我用了以后截出的图是一块黑块..函数里用到hdc,memhdc这两个变量我也依照示例进行了赋值,不知道问题出在哪,能否点拨一下?

kevinqq

1. 
   
2. 直接改个源码给你吧 ,示例中内存中的图像做了一次备份,截的是最最层窗口上的图,下面直接截取当前桌面的
   
3. function SetClipboardBmp(left,top,right,button)
   
4.    
   
5.     var CF_TEXT=1
   
6.     var CF_BITMAP=2   
   
7.    
   
8.     var DesktopWindowHwnd = dllcall("user32.dll","int","GetDesktopWindow")  //取桌面窗口句柄
   
9.     var DesktopWindowDC = dllcall("user32.dll","int","GetWindowDC","int", DesktopWindowHwnd)  //取窗口设备场景
   
10.    
    
11.     var ClipDc = dllcall("gdi32.dll","int","CreateCompatibleDC","int",DesktopWindowDC)  //创建一个内存DC，
    
12.     var hBitmap = dllcall("gdi32.dll","int","CreateCompatibleBitmap","int",DesktopWindowDC,"int",right-left,"int",button-top)   
    
13.     var hOldBitmap=dllcall("gdi32.dll","int","SelectObject","int",ClipDc,"int",hBitmap)
    
14.     var ret=dllcall("gdi32.dll","int","BitBlt","int",ClipDc,"int",0,"int",0,"int",right-left,"int",button-top,"int",DesktopWindowDC,"int",left,"int",top,"int",#00CC0020) //将桌面图像拷贝进内存DC做备份   
    
15.     hBitmap=dllcall("gdi32.dll","int","SelectObject","int",ClipDc,"int",hOldBitmap)
    
16.    
    
17.     dllcall("user32.dll","int","OpenClipboard","int",0) //打开剪切板
    
18.     dllcall("user32.dll","int","EmptyClipboard") //清空剪切板
    
19.     ret=dllcall("user32.dll","int","SetClipboardData","int",CF_BITMAP,"int",hBitmap) //复制图片
    
20.     dllcall("user32.dll","int","CloseClipboard") //清空剪切板
    
21.    
    
22.     dllcall("user32.dll","int","DeleteObject","int",hOldBitmap) //释放由调用GetDC或GetWindowDC函数获取的指定设备场景
    
23.     dllcall("user32.dll","int","DeleteObject","int",hBitmap) //释放由调用GetDC或GetWindowDC函数获取的指定设备场景
    
24.     dllcall("user32.dll","int","DeleteDC","int",ClipDc) //释放由调用GetDC或GetWindowDC函数获取的指定设备场景
    
25. end
    
26. 
    
27. 
    
28. 
    

复制代码

sanmaodo

这论坛多几个你这样慷慨解答的大神，必定会兴旺起来。

rock_wolf

非常感谢!程序目前已经正常运行!

wjyzl0569

很好，学习了