/// <summary>
/// レイヤード ウィンドウを設定します。
/// </summary>
/// <param name="srcBitmap">表示する画像</param>
public void SetLayeredWindow(Bitmap srcBitmap)
{
// デバイスコンテキストを取得
var screenDc = IntPtr.Zero;
var memDc = IntPtr.Zero;
var hBitmap = IntPtr.Zero;
var hOldBitmap = IntPtr.Zero;
try
{
screenDc = API.GetDC(IntPtr.Zero);
memDc = API.CreateCompatibleDC(screenDc);
hBitmap = srcBitmap.GetHbitmap(Color.FromArgb(0));
hOldBitmap = API.SelectObject(memDc, hBitmap);
// BLENDFUNCTION を初期化
var blend = new API.BLENDFUNCTION()
{
BlendOp = API.AC_SRC_OVER,
BlendFlags = 0,
SourceConstantAlpha = 255,
AlphaFormat = API.AC_SRC_ALPHA,
};
// レイヤードウィンドウを更新
Size = new Size(srcBitmap.Width, srcBitmap.Height);
var pptDst = new Point(Left, Top);
var psize = new Size(Width, Height);
var pptSrc = new Point(0, 0);
// 更新
API.UpdateLayeredWindow(
Handle, screenDc, ref pptDst, ref psize,
memDc, ref pptSrc, 0, ref blend, API.ULW_ALPHA);
}
finally
{
if (screenDc != IntPtr.Zero)
{
API.ReleaseDC(IntPtr.Zero, screenDc);
}
if (hBitmap != IntPtr.Zero)
{
API.SelectObject(memDc, hOldBitmap);
API.DeleteObject(hBitmap);
}
if (memDc != IntPtr.Zero)
{
API.DeleteDC(memDc);
}
}
}
//The usual SINGLE-COLOR TransKey method for making the background transparent has failed due to random white pixels which are not removed
//because their colors are slightly off the TransKey.
//So an alternate way of drawing on form is utilised here using API calls
#region CUSTOM PAINT METHODS ----------------------------------------------
//Updates the Form's display using API calls
static public void UpdateFormDisplay(Image backgroundImage, Form canvas)
{
IntPtr screenDc = API.GetDC(IntPtr.Zero);
IntPtr memDc = API.CreateCompatibleDC(screenDc);
IntPtr hBitmap = IntPtr.Zero;
IntPtr oldBitmap = IntPtr.Zero;
try
{
//Display-image
using (Bitmap bmp = new Bitmap(backgroundImage))
{
hBitmap = bmp.GetHbitmap(Color.FromArgb(0)); //Set the fact that background is transparent
oldBitmap = API.SelectObject(memDc, hBitmap);
//Display-rectangle
Size size = bmp.Size;
Point pointSource = new Point(0, 0);
Point topPos = new Point(canvas.Left, canvas.Top);
//Set up blending options
API.BLENDFUNCTION blend = new API.BLENDFUNCTION();
blend.BlendOp = API.AC_SRC_OVER;
blend.BlendFlags = 0;
blend.SourceConstantAlpha = 255;
blend.AlphaFormat = API.AC_SRC_ALPHA;
//Draw image
API.UpdateLayeredWindow(canvas.Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, API.ULW_ALPHA);
//Clean-up
bmp.Dispose();
API.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
API.SelectObject(memDc, oldBitmap);
API.DeleteObject(hBitmap);
}
API.DeleteDC(memDc);
}
}
catch (Exception)
{
}
}
//Updates the Form's display using API calls
public static void UpdateFormDisplay(Image backgroundImage, Form canvas)
{
IntPtr screenDc = API.GetDC(IntPtr.Zero);
IntPtr memDc = API.CreateCompatibleDC(screenDc);
IntPtr hBitmap = IntPtr.Zero;
IntPtr oldBitmap = IntPtr.Zero;
try
{
//Display-image
using (Bitmap bmp = new Bitmap(backgroundImage))
{
hBitmap = bmp.GetHbitmap(Color.FromArgb(0)); //Set the fact that background is transparent
oldBitmap = API.SelectObject(memDc, hBitmap);
//Display-rectangle
Size size = bmp.Size;
Point pointSource = new Point(0, 0);
Point topPos = new Point(canvas.Left, canvas.Top);
//Set up blending options
API.BLENDFUNCTION blend = new API.BLENDFUNCTION();
blend.BlendOp = API.AC_SRC_OVER;
blend.BlendFlags = 0;
blend.SourceConstantAlpha = 255;
blend.AlphaFormat = API.AC_SRC_ALPHA;
//Draw image
API.UpdateLayeredWindow(canvas.Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, API.ULW_ALPHA);
//Clean-up
bmp.Dispose();
API.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
API.SelectObject(memDc, oldBitmap);
API.DeleteObject(hBitmap);
}
API.DeleteDC(memDc);
}
}
catch (Exception)
{
}
}
public void UpdateFormDisplay(Image backgroundImage)
{
IntPtr screenDc = API.GetDC(IntPtr.Zero);
IntPtr memDc = API.CreateCompatibleDC(screenDc);
IntPtr hBitmap;
IntPtr oldBitmap;
//Display-image
Bitmap bmp = new Bitmap(backgroundImage);
Graphics g = Graphics.FromImage(bmp);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
for (int i = 0; i < Controls.Count; i++)
{
if (!Controls[i].Visible)
{
continue;
}
Bitmap bmmp = new Bitmap(Controls[i].Width, Controls[i].Height);
Controls[i].DrawToBitmap(bmmp, Controls[i].ClientRectangle);
g.DrawImage(bmmp, Controls[i].Location);
}
PointF mousepos = new PointF(MousePosition.X - Left, MousePosition.Y - Top);
for (int i = 0; i < 10; i++)
{
if (i + 1 == Program.curDay)
{
g.FillRectangle(new SolidBrush(Color.FromArgb(150, 120, 120, 120)), 110 * i, 0, 120, 590);
}
for (int j = 0; j < 7; j++)
{
Brush pencolourl = Brushes.Aqua;
PointF curloc = new PointF(110 * i + 10, 82 * j + 10);
RectangleF containerF = new RectangleF(curloc.X, curloc.Y, 100, 80);
int alpha = 255;
if (Program.TimetableList.ContainsKey((i + 1) + j.ToString()))
{
Period curp = Program.TimetableList[(i + 1) + j.ToString()];
pencolourl = new SolidBrush(Color.FromArgb(alpha, Program.ColorRef[curp.ClassCode]));
Brush textbrush = new SolidBrush(Color.FromArgb(alpha, Color.Black));
g.FillRectangle(pencolourl, containerF);
g.DrawString(curp.Room, SystemFonts.DefaultFont, textbrush, curloc.X + 60, curloc.Y + 65);
g.DrawString(curp.ClassCode, SystemFonts.DefaultFont, textbrush, curloc.X, curloc.Y + 65);
g.DrawString(curp.SchoolStaffCode, SystemFonts.DefaultFont, textbrush, curloc.X, curloc.Y + 55);
g.DrawString(curp.ClassDescription, SystemFonts.DefaultFont, textbrush, new RectangleF(curloc.X, curloc.Y + 1, 98, 50));
textbrush.Dispose();
}
if (mouseclick.X != -10000 && containerF.Contains(mouseclick) && Program.TimetableList.ContainsKey((i + 1) + j.ToString()))
{
mouseclick = new PointF(-10000, 0);
colorbox = true;
colorDialog1.Color = Program.ColorRef[Program.TimetableList[(i + 1) + j.ToString()].ClassCode];
var results = colorDialog1.ShowDialog();
if (results == DialogResult.OK)
{
Program.ColorRef[Program.TimetableList[(i + 1) + j.ToString()].ClassCode] = colorDialog1.Color;
}
colorbox = false;
}
pencolourl.Dispose();
}
}
using (Font bigfont = new Font("Trebuchet MS", dx * 18))
{
g.DrawString("Term " + Program.SettingsData.Curterm, bigfont, Brushes.White, 1098, 5);
}
mouseclick = new PointF(-10000, 0);
hBitmap = bmp.GetHbitmap(Color.FromArgb(0)); //Set the fact that background is transparent
oldBitmap = API.SelectObject(memDc, hBitmap);
//Display-rectangle
Size size = bmp.Size;
Point pointSource = new Point(0, 0);
Point topPos = new Point(Left, Top);
//Set up blending options
API.BLENDFUNCTION blend = new API.BLENDFUNCTION();
blend.BlendOp = API.AC_SRC_OVER;
blend.BlendFlags = 0;
blend.SourceConstantAlpha = Convert.ToByte(255);
blend.AlphaFormat = API.AC_SRC_ALPHA;
API.UpdateLayeredWindow(Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, API.ULW_ALPHA);
//Clean-up
g.Dispose();
bmp.Dispose();
API.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero)
{
API.SelectObject(memDc, oldBitmap);
API.DeleteObject(hBitmap);
}
API.DeleteDC(memDc);
}
