/// <summary>
/// Function: Strech text
/// Author : Jerry Xu
/// Date : 2008-8-2
/// </summary>
/// <param name="g">Graphics:destination graphics</param>
/// <param name="drawText">string:destination text</param>
/// <param name="font">Font</param>
/// <param name="sourceBounds">source rectangle</param>
/// <param name="antiAliasing">bool</param>
private static void StrechText(Graphics g, string drawText, Font font, Color foreColor, Color backColor, Rectangle sourceBounds, float zoom, bool antiAliasing)
{
//Define InPtr(point)
IntPtr destDC = IntPtr.Zero;
//IntPtr destDC1 = IntPtr.Zero;
IntPtr dcMemery = IntPtr.Zero;
IntPtr pbitmap = IntPtr.Zero;
IntPtr hFont = IntPtr.Zero;
//Define destination bound
Rectangle destBounds;
try
{
//Destionation DC
destDC = g.GetHdc();
//destDC1 = g.GetHdc();
//Temp DC
dcMemery = SafeNativeMethods.CreateCompatibleDC(destDC);
//Init font
//font = new Font("宋体", 14.0f, FontStyle.Regular, GraphicsUnit.Pixel);
//Set font to temp DC
hFont = font.ToHfont();
SafeNativeMethods.SelectObject(dcMemery, hFont);
//Create image and get image DC
pbitmap = SafeNativeMethods.CreateCompatibleBitmap(destDC, sourceBounds.Width, sourceBounds.Height);
//Set image DC to temp DC
SafeNativeMethods.SelectObject(dcMemery, pbitmap);
//Set fore color
NativeStructs.RGBQUAD rgb = new NativeStructs.RGBQUAD();
rgb.rgbBlue = foreColor.B;
rgb.rgbRed = foreColor.R;
rgb.rgbGreen = foreColor.G;
SafeNativeMethods.SetTextColor(dcMemery, rgb);
//Set back color
NativeStructs.RGBQUAD rgbBG = new NativeStructs.RGBQUAD();
rgbBG.rgbBlue = backColor.B;
rgbBG.rgbRed = backColor.R;
rgbBG.rgbGreen = backColor.G;
SafeNativeMethods.SetBkColor(dcMemery, rgbBG);
//Draw text to temp Rectangle
NativeStructs.RECT rect = ConvertRectangleToRECT(sourceBounds);
SafeNativeMethods.DrawTextW(dcMemery, drawText, drawText.Length, ref rect, NativeConstants.DT_CENTER);
//Zoom Rectangle
destBounds = new Rectangle(sourceBounds.X, sourceBounds.Y, (int)(sourceBounds.Width * zoom), (int)(sourceBounds.Height * zoom));
//Draw temp Rectangle to zoom Rectangle
SafeNativeMethods.StretchBlt(destDC, destBounds.X, destBounds.Y, destBounds.Width, destBounds.Height, dcMemery, sourceBounds.X, sourceBounds.Y, sourceBounds.Width, sourceBounds.Height, NativeConstants.SRCCOPY);
//SafeNativeMethods.TransparentBlt(destDC1, destBounds.X, destBounds.Y, destBounds.Width, destBounds.Height, destDC, sourceBounds.X, sourceBounds.Y, sourceBounds.Width, sourceBounds.Height, rgbBG);
}
catch
{
}
finally
{
//Disponse resource
if (pbitmap != IntPtr.Zero)
{
SafeNativeMethods.SelectObject(dcMemery, pbitmap);
pbitmap = IntPtr.Zero;
}
if (dcMemery != IntPtr.Zero)
{
SafeNativeMethods.SelectObject(destDC, dcMemery);
dcMemery = IntPtr.Zero;
}
if (hFont != IntPtr.Zero)
{
SafeNativeMethods.DeleteObject(hFont);
hFont = IntPtr.Zero;
}
if (destDC != IntPtr.Zero)
{
g.ReleaseHdc(destDC);
destDC = IntPtr.Zero;
}
//if (destDC1 != IntPtr.Zero)
//{
// g.ReleaseHdc(destDC1);
// destDC1 = IntPtr.Zero;
//}
}
}
private void DrawFunction(PaintEventArgs e)
{
//Define font
//Define string
string drawText = "ABC";
//Define XY
Point pt = new Point(0, 0);
//Define anti
bool antiAliasing = false;
//Define Smoothing
FontSmoothing smoothType = FontSmoothing.Sharp;
//Fonts.DrawText(e.Graphics, font, "A", new Point(0, 0), false, FontSmoothing.Sharp);
// Panel handle
IntPtr destDC = IntPtr.Zero;
IntPtr hOldObject = IntPtr.Zero;
IntPtr dcMemery = IntPtr.Zero;
IntPtr pbitmap = IntPtr.Zero;
//IntPtr pTemp = IntPtr.Zero;
Graphics g = e.Graphics;
NativeStructs.RECT destBounds = new NativeStructs.RECT();
destBounds.left = 0;
destBounds.top = 0;
destBounds.bottom = 20;
destBounds.right = 20;
destDC = g.GetHdc();
//pTemp = SafeNativeMethods.CreateCompatibleDC(destDC);
dcMemery = SafeNativeMethods.CreateCompatibleDC(destDC);
// Font
Font font = new Font("宋体", 10.0f, FontStyle.Regular, GraphicsUnit.Pixel);
IntPtr hFont = IntPtr.Zero;
hFont = Fonts.CreateFontObject(font, antiAliasing);
SafeNativeMethods.SelectObject(dcMemery, hFont);
pbitmap = SafeNativeMethods.CreateCompatibleBitmap(destDC, 20, 20);
SafeNativeMethods.SelectObject(dcMemery, pbitmap);
NativeStructs.RGBQUAD rgb = new NativeStructs.RGBQUAD();
rgb.rgbBlue = 255;
NativeStructs.RGBQUAD rgbBG = new NativeStructs.RGBQUAD();
rgbBG.rgbBlue = 0;
rgbBG.rgbRed = 0;
rgbBG.rgbGreen = 0;
//Graphics gSource = new Graphics();
//gSource.
//IntPtr gPtr = gSource.GetHdc();
//gPtr = dcMemery;
//gSource
SafeNativeMethods.SetTextColor(dcMemery, rgb);
SafeNativeMethods.SetBkColor(dcMemery, rgbBG);
SafeNativeMethods.DrawTextW(dcMemery, drawText, drawText.Length, ref destBounds, NativeConstants.DT_CENTER);
//SafeNativeMethods.TransparentBlt(pTemp, destBounds.left, destBounds.top, destBounds.right, destBounds.bottom, dcMemery, destBounds.left, destBounds.top, destBounds.right, destBounds.bottom, 0);
SafeNativeMethods.StretchBlt(destDC, 0, 0, 20 * 10, 20 * 10, dcMemery, 0, 0, 20, 20, NativeConstants.SRCCOPY);
//dcMemery.
//pbitmap = bit.GetHbitmap();
//dcMemery = SafeNativeMethods.CreateCompatibleBitmap(pdc, 20, 20);
//SafeNativeMethods.
//hFont = CreateFontObject(font, antiAliasing);
//hOldObject = SafeNativeMethods.SelectObject(pdc, hFont);
//SafeNativeMethods.CreateCompatibleDC(pdc);
//uint result1 = SafeNativeMethods.StretchBlt(
// 0,
// 0,
// 20,
// 20,
// pdc,
// 0,
// 0,
// 20 * 1000,
// 20 * 1000,
// NativeConstants.SRCCOPY);
}
