本文介绍了如何更改对话框的不透明度?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个对话框,用于在:: OnCreate中创建一个窗口.我想更改该对话框的不透明度,而不是窗口.我也将此代码放在:: Oncreate中(在创建CWnd的代码之前):
I have a Dialog that creates a window in ::OnCreate. I want to change the opacity of this dialog not the window. I Put this code in ::Oncreate too (before the code creating CWnd):
LONG ExtendedStyle = GetWindowLong( GetSafeHwnd(), GWL_EXSTYLE );
SetWindowLong( GetSafeHwnd(), GWL_EXSTYLE, ExtendedStyle | WS_EX_LAYERED );
SetLayeredWindowAttributes( 0, 100, LWA_ALPHA );
该代码使Dialog和Window都透明.
this code makes both Dialog and Window transparent.
How can I set this attribute in my desired way?
推荐答案
ModifyStyleEx(0, WS_EX_LAYERED);
SetLayeredWindowAttributes(0, 255 * 0.50, LWA_ALPHA);
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