怎样实现截图到剪贴板？

rock_wolf · 发表于 2015-10-12 14:38:17

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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？

高冷小Q · 发表于 2016-1-14 16:31:24

橡皮筋谁鸡，巴能看

高冷小Q · 发表于 2016-1-14 16:31:17

橡皮筋谁鸡，巴能看

高冷小Q · 发表于 2016-1-14 16:31:16

橡皮筋谁鸡，巴能看

wjyzl0569 · 发表于 2016-1-14 11:02:57

很好，学习了

rock_wolf · 发表于 2015-10-15 12:01:02

非常感谢!程序目前已经正常运行!

sanmaodo · 发表于 2015-10-14 23:07:05

这论坛多几个你这样慷慨解答的大神，必定会兴旺起来。

kevinqq · 发表于 2015-10-14 11:09:35

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
function SetClipboardBmp(left,top,right,button)
var CF_TEXT=1
var CF_BITMAP=2
var DesktopWindowHwnd = dllcall("user32.dll","int","GetDesktopWindow") //取桌面窗口句柄
var DesktopWindowDC = dllcall("user32.dll","int","GetWindowDC","int", DesktopWindowHwnd) //取窗口设备场景
var ClipDc = dllcall("gdi32.dll","int","CreateCompatibleDC","int",DesktopWindowDC) //创建一个内存DC，
var hBitmap = dllcall("gdi32.dll","int","CreateCompatibleBitmap","int",DesktopWindowDC,"int",right-left,"int",button-top)
var hOldBitmap=dllcall("gdi32.dll","int","SelectObject","int",ClipDc,"int",hBitmap)
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
hBitmap=dllcall("gdi32.dll","int","SelectObject","int",ClipDc,"int",hOldBitmap)
dllcall("user32.dll","int","OpenClipboard","int",0) //打开剪切板
dllcall("user32.dll","int","EmptyClipboard") //清空剪切板
ret=dllcall("user32.dll","int","SetClipboardData","int",CF_BITMAP,"int",hBitmap) //复制图片
dllcall("user32.dll","int","CloseClipboard") //清空剪切板
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
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
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
end

复制代码

rock_wolf · 发表于 2015-10-13 21:32:49

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?

rock_wolf · 发表于 2015-10-13 10:49:29

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

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[已解决] 怎样实现截图到剪贴板？

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