Yev*_*lov 0 .net c# user32 winforms
我有一个 C# 应用程序可以防止屏幕捕获,但我想禁用“黑屏”。
这是我的代码:
[DllImport("user32.dll")]
public static extern uint SetWindowDisplayAffinity(IntPtr hWnd, uint dwAffinity);
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
SetWindowDisplayAffinity(this.Handle, WDA_MONITOR);
}
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我可以通过什么方式禁用它?
使用SetWindowDisplayAffinity,从捕获中排除窗口,传递WDA_EXCLUDEFROMCAPTURE或WDA_MONITOR作为参数,并撤消(包含在捕获中),传递WDA_NONE:
[DllImport("user32.dll")]
static extern uint SetWindowDisplayAffinity(IntPtr hWnd, uint dwAffinity);
const uint WDA_NONE = 0x00000000;
const uint WDA_MONITOR = 0x00000001;
const uint WDA_EXCLUDEFROMCAPTURE = 0x00000011;
private void includeButton_Click(object sender, EventArgs e)
{
SetWindowDisplayAffinity(this.Handle, WDA_NONE);
}
private void excludeButton_Click(object sender, EventArgs e)
{
SetWindowDisplayAffinity(this.Handle, WDA_MONITOR);
}
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以下屏幕截图显示该窗口包含在捕获中:
以下屏幕截图显示该窗口被排除在捕获之外:
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