public void SetBits()
{
//绘制绘图层背景
Bitmap bitmap = new Bitmap(Main.Width + 10, Main.Height + 10);
Rectangle _BacklightLTRB = new Rectangle(20, 20, 20, 20);//窗体光泽重绘边界
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.HighQuality; //高质量
g.PixelOffsetMode = PixelOffsetMode.HighQuality; //高像素偏移质量
ImageDrawRect.DrawRect(g, Properties.Resources.main_light_bkg_top123, ClientRectangle, Rectangle.FromLTRB(_BacklightLTRB.X, _BacklightLTRB.Y, _BacklightLTRB.Width, _BacklightLTRB.Height), 1, 1);
if (!Bitmap.IsCanonicalPixelFormat(bitmap.PixelFormat) || !Bitmap.IsAlphaPixelFormat(bitmap.PixelFormat))
{
throw new ApplicationException("图片必须是32位带Alhpa通道的图片。");
}
IntPtr oldBits = IntPtr.Zero;
IntPtr screenDC = FormWin32.GetDC(IntPtr.Zero);
IntPtr hBitmap = IntPtr.Zero;
IntPtr memDc = FormWin32.CreateCompatibleDC(screenDC);
try
{
FormWin32.Point topLoc = new FormWin32.Point(Left, Top);
FormWin32.Size bitMapSize = new FormWin32.Size(Width, Height);
FormWin32.BLENDFUNCTION blendFunc = new FormWin32.BLENDFUNCTION();
FormWin32.Point srcLoc = new FormWin32.Point(0, 0);
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
oldBits = FormWin32.SelectObject(memDc, hBitmap);
blendFunc.BlendOp = FormWin32.AC_SRC_OVER;
blendFunc.SourceConstantAlpha = Byte.Parse("255");
blendFunc.AlphaFormat = FormWin32.AC_SRC_ALPHA;
blendFunc.BlendFlags = 0;
FormWin32.UpdateLayeredWindow(Handle, screenDC, ref topLoc, ref bitMapSize, memDc, ref srcLoc, 0, ref blendFunc, FormWin32.ULW_ALPHA);
}
catch (Exception ex)
{
}
finally
{
if (hBitmap != IntPtr.Zero)
{
FormWin32.SelectObject(memDc, oldBits);
FormWin32.DeleteObject(hBitmap);
}
FormWin32.ReleaseDC(IntPtr.Zero, screenDC);
FormWin32.DeleteDC(memDc);
}
}
public void SetBits()
{
//绘制绘图层背景
Bitmap bitmap = new Bitmap(Main.Width + 10, Main.Height + 10);
Rectangle _BacklightLTRB = new Rectangle(20, 20, 20, 20);//窗体光泽重绘边界
Graphics g = Graphics.FromImage(bitmap);
g.SmoothingMode = SmoothingMode.HighQuality; //高质量
g.PixelOffsetMode = PixelOffsetMode.HighQuality; //高像素偏移质量
ImageDrawRect.DrawRect(g, Properties.Resources.main_light_bkg_top123, ClientRectangle, Rectangle.FromLTRB(_BacklightLTRB.X, _BacklightLTRB.Y, _BacklightLTRB.Width, _BacklightLTRB.Height), 1, 1);
if (!Bitmap.IsCanonicalPixelFormat(bitmap.PixelFormat) || !Bitmap.IsAlphaPixelFormat(bitmap.PixelFormat))
throw new ApplicationException("图片必须是32位带Alhpa通道的图片。");
IntPtr oldBits = IntPtr.Zero;
IntPtr screenDC = FormWin32.GetDC(IntPtr.Zero);
IntPtr hBitmap = IntPtr.Zero;
IntPtr memDc = FormWin32.CreateCompatibleDC(screenDC);
try
{
FormWin32.Point topLoc = new FormWin32.Point(Left, Top);
FormWin32.Size bitMapSize = new FormWin32.Size(Width, Height);
FormWin32.BLENDFUNCTION blendFunc = new FormWin32.BLENDFUNCTION();
FormWin32.Point srcLoc = new FormWin32.Point(0, 0);
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));
oldBits = FormWin32.SelectObject(memDc, hBitmap);
blendFunc.BlendOp = FormWin32.AC_SRC_OVER;
blendFunc.SourceConstantAlpha = Byte.Parse("255");
blendFunc.AlphaFormat = FormWin32.AC_SRC_ALPHA;
blendFunc.BlendFlags = 0;
FormWin32.UpdateLayeredWindow(Handle, screenDC, ref topLoc, ref bitMapSize, memDc, ref srcLoc, 0, ref blendFunc, FormWin32.ULW_ALPHA);
}
catch (Exception ex)
{
}
finally
{
if (hBitmap != IntPtr.Zero)
{
FormWin32.SelectObject(memDc, oldBits);
FormWin32.DeleteObject(hBitmap);
}
FormWin32.ReleaseDC(IntPtr.Zero, screenDC);
FormWin32.DeleteDC(memDc);
}
}
