本文整理汇总了C#中System.Drawing.Bitmap.GetHbitmap方法的典型用法代码示例。如果您正苦于以下问题：C# Bitmap.GetHbitmap方法的具体用法？C# Bitmap.GetHbitmap怎么用？C# Bitmap.GetHbitmap使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Drawing.Bitmap的用法示例。
在下文中一共展示了Bitmap.GetHbitmap方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: FormDisplay
public FormDisplay(Root root)
{
Root = root;
InitializeComponent();
this.Left = SystemInformation.VirtualScreen.Left;
this.Top = SystemInformation.VirtualScreen.Top;
int targetbottom = 0;
foreach (Screen screen in Screen.AllScreens)
{
if (screen.WorkingArea.Bottom > targetbottom)
targetbottom = screen.WorkingArea.Bottom;
}
int virwidth = SystemInformation.VirtualScreen.Width;
this.Width = virwidth;
this.Height = targetbottom - this.Top;
Bitmap InitCanvus = new Bitmap(this.Width, this.Height);
Canvus = InitCanvus.GetHbitmap(Color.FromArgb(0));
OneStrokeCanvus = InitCanvus.GetHbitmap(Color.FromArgb(0));
//BlankCanvus = InitCanvus.GetHbitmap(Color.FromArgb(0));
IntPtr screenDc = GetDC(IntPtr.Zero);
canvusDc = CreateCompatibleDC(screenDc);
SelectObject(canvusDc, Canvus);
onestrokeDc = CreateCompatibleDC(screenDc);
SelectObject(onestrokeDc, OneStrokeCanvus);
//blankcanvusDc = CreateCompatibleDC(screenDc);
//SelectObject(blankcanvusDc, BlankCanvus);
gCanvus = Graphics.FromHdc(canvusDc);
gCanvus.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
gOneStrokeCanvus = Graphics.FromHdc(onestrokeDc);
gOneStrokeCanvus.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
if (Root.AutoScroll)
{
hScreenBitmap = InitCanvus.GetHbitmap(Color.FromArgb(0));
memscreenDc = CreateCompatibleDC(screenDc);
SelectObject(memscreenDc, hScreenBitmap);
screenbits = new byte[50000000];
lastscreenbits = new byte[50000000];
}
ReleaseDC(IntPtr.Zero, screenDc);
InitCanvus.Dispose();
//this.DoubleBuffered = true;
gpButtonsImage = new Bitmap(2400, 100);
TransparentBrush = new SolidBrush(Color.Transparent);
SemiTransparentBrush = new SolidBrush(Color.FromArgb(120, 255, 255, 255));
ToTopMostThrough();
}示例2: BorderPaint
public BorderPaint(Bitmap image, bool imageIsOwned, BorderPaintMode flags, params Rectangle[] slices)
{
_flags = flags;
_slices = slices;
_bitmap = image;
_imageIsOwned = imageIsOwned;
if (IsFlagSet(flags, BorderPaintMode.GDI))
{
_hBitmap = image.GetHbitmap();
}
else if (IsFlagSet(flags, BorderPaintMode.Cached))
{
_sliceCache = new Bitmap[SLICECOUNT];
for (int i = 0; i < SLICECOUNT; i++)
{
if (slices[i].Width > 0 && slices[i].Height > 0)
{
Bitmap cachedSlice = new Bitmap(slices[i].Width, slices[i].Height, image.PixelFormat);
using (Graphics g = Graphics.FromImage(cachedSlice))
g.DrawImage(image, new Rectangle(0, 0, slices[i].Width, slices[i].Height), slices[i], GraphicsUnit.Pixel);
_sliceCache[i] = cachedSlice;
}
}
}
}示例3: Convert
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
//convert GDI+ bitmap to image source
Bitmap bmp = value as Bitmap;
if (bmp != null)
{
BitmapSource bitmapsource = null;
try
{
bitmapsource = Imaging.CreateBitmapSourceFromHBitmap(bmp.GetHbitmap(), IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions
());
}
catch (Exception exp)
{
Bitmap tempbmp = new Bitmap(32, 32);
Graphics g = Graphics.FromImage(tempbmp);
g.Clear(Color.Magenta);
bitmapsource = Imaging.CreateBitmapSourceFromHBitmap(tempbmp.GetHbitmap(Color.Magenta),
IntPtr.Zero, Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
}
return bitmapsource;
}
return null;
}示例4: Tile
public Tile(Image image, TileCoordinate tile, RenderMode mode)
{
this.tile = tile;
if(image != null)
{
this.mode = mode;
switch(mode)
{
case RenderMode.GDI:
{
using(Bitmap bitmap = new Bitmap(image))
{
this.ptrHbitmap = bitmap.GetHbitmap();
}
}
break;
case RenderMode.GDI_PLUS:
{
this.image = image;
}
break;
}
}
}示例5: GetHbitmap
public void GetHbitmap ()
{
Bitmap b = new Bitmap (10, 10);
try {
Assert.IsTrue (b.GetHbitmap () != IntPtr.Zero, "GetHbitmap");
}
catch (NotImplementedException) {
// not available on Mono
}
try {
Assert.IsTrue (b.GetHbitmap (Color.Aqua) != IntPtr.Zero, "GetHbitmap(Color)");
}
catch (NotImplementedException) {
// not available on Mono
}
}示例6: Convert
/// <summary>
/// Converts an System.Drawing.Image to a BitmapSource.
/// </summary>
/// <param name="value">Image to convert.</param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns>Submitted value as a Bitmapsource.</returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
Image myImage = value as Image;
BitmapSource bitmapSource = null;
if (myImage != null)
{
IntPtr bmpPt = IntPtr.Zero;
try
{
var bitmap = new Bitmap(myImage);
bmpPt = bitmap.GetHbitmap();
bitmapSource =
System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
bmpPt,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
bitmapSource.Freeze();
}
finally
{
if (bmpPt != IntPtr.Zero)
DeleteObject(bmpPt);
}
}
return bitmapSource;
}示例7: Fill_Image_Buffer
public static byte[,,] Fill_Image_Buffer(Bitmap bmp, IProgress progress, ICurrentOperation operation)
{
if (operation != null)
operation.SetOperation(CurrentOperation.FillImageBuffer);
Point originalSize = GetActualDimension(new Point(bmp.Width, bmp.Height));
byte[,,] Bitmap_Buffer = new byte[originalSize.X,originalSize.Y, 3];
IntPtr hbmScreen = IntPtr.Zero;
IntPtr hBmpInput = bmp.GetHbitmap();
InteropGDI.BITMAP bmpInput = new InteropGDI.BITMAP();
InteropGDI.GetObject(hBmpInput, 24, ref bmpInput);
InteropGDI.BITMAPINFOHEADER bi;
bi.biSize = 40;
bi.biWidth = bmpInput.bmWidth;
bi.biHeight = -bmpInput.bmHeight; // Negative to reverse the scan order.
bi.biPlanes = 1;
bi.biBitCount = 32;
bi.biCompression = (uint)InteropGDI.BMP_Compression_Modes.BI_RGB;
bi.biSizeImage = 0;
bi.biXPelsPerMeter = 0;
bi.biYPelsPerMeter = 0;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
ulong bitmapLengthBytes = (ulong)(((bmpInput.bmWidth * bi.biBitCount + 31) / 32) * 4 * bmpInput.bmHeight);
byte[] bitmap_array = new byte[bitmapLengthBytes];
IntPtr hdcWindow = InteropGDI.CreateCompatibleDC(IntPtr.Zero);
InteropGDI.GetDIBits(hdcWindow, hBmpInput, (uint)0,
(uint)bmpInput.bmHeight,
bitmap_array,
ref bi, (uint)InteropGDI.DIB_COLORS.DIB_RGB_COLORS);
int k = 0, wd = bmpInput.bmWidth, ht = bmpInput.bmHeight;
for (int j = 0; j < ht; j++)
{
if (progress != null)
progress.SetProgress((int)bitmapLengthBytes, k);
for (int i = 0; i < wd; i++)
{
Bitmap_Buffer[i, j, 2] = bitmap_array[k++];
Bitmap_Buffer[i, j, 1] = bitmap_array[k++];
Bitmap_Buffer[i, j, 0] = bitmap_array[k++];
k++;
}
}
InteropGDI.DeleteObject(hdcWindow);
InteropGDI.DeleteObject(hbmScreen);
InteropGDI.DeleteObject(hBmpInput);
return Bitmap_Buffer;
}示例8: OpenButton_OnClick
//打开图片
private void OpenButton_OnClick(object sender, RoutedEventArgs e)
{
var openFile = new OpenFileDialog
{
InitialDirectory = Environment.CurrentDirectory,
Filter = "JPEG图片|*.jpg|PNG图片|*.png",
RestoreDirectory = false,
FilterIndex = 1
};
if (openFile.ShowDialog() != true) return;
_srcImage?.Dispose();
_dstImage?.Dispose();
_dstImage = null;
GC.Collect();
//强行回收内存
_srcImage = new Bitmap(openFile.FileName, false);
//将源图像转化为BitmapSource，并用Image控件显示
var ip = _srcImage.GetHbitmap();
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(ip, IntPtr.Zero, Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
Rescale.CenterX = 0;
Rescale.CenterY = 0;
Rescale.ScaleX = Rescale.ScaleY = 1;
CurrentImage.Source = bitmapSource;
}示例9: DisplayAndShowIcon
/// <summary>
/// The display and show icon.
/// </summary>
/// <param name="message">
/// The message.
/// </param>
public void DisplayAndShowIcon(string message)
{
var b =
new Bitmap(
@"E:\Development\SonarQube\VssonarExtension\VSSonarQubeExtension\VSSonarExtension\PackageImplementation\Resources\sonariconsource.bmp");
IntPtr hdc = IntPtr.Zero;
hdc = b.GetHbitmap();
object hdcObject = hdc;
vssStatusBar.Bar.Animation(1, ref hdcObject);
Thread.Sleep(10000);
vssStatusBar.Bar.Animation(0, ref hdcObject);
DeleteObject(hdc);
return;
object icon = Constants.SBAI_Build;
vssStatusBar.dte.StatusBar.Animate(true, icon);
// this.Bar.Animation(1, ref icon);
vssStatusBar.dte.StatusBar.Text = message;
// this.Bar.SetText(message);
vssStatusBar.dte.StatusBar.Animate(false, icon);
// this.Bar.Animation(0, ref icon);
vssStatusBar.dte.StatusBar.Text = "Build Succeeded";
}示例10: SetBitmap
/// <summary>
/// Set overlay bitmap with a custom opacity level.
/// </summary>
public void SetBitmap(Bitmap bitmap, byte opacity)
{
if (bitmap.PixelFormat != PixelFormat.Format32bppArgb)
throw new ApplicationException("The bitmap must be 32ppp with alpha-channel.");
var screenDc = Win32.GetDC(IntPtr.Zero);
var memDc = Win32.CreateCompatibleDC(screenDc);
var hBitmap = IntPtr.Zero;
var oldBitmap = IntPtr.Zero;
try {
hBitmap = bitmap.GetHbitmap(Color.FromArgb(0)); // grab a GDI handle from this GDI+ bitmap
oldBitmap = Win32.SelectObject(memDc, hBitmap);
var size = new Win32.Size(bitmap.Width, bitmap.Height);
var pointSource = new Win32.Point(0, 0);
var topPos = new Win32.Point(Left, Top);
var blend = new Win32.BLENDFUNCTION{
BlendOp = Win32.AC_SRC_OVER,
BlendFlags = 0,
SourceConstantAlpha = opacity,
AlphaFormat = Win32.AC_SRC_ALPHA
};
Win32.UpdateLayeredWindow(Handle, screenDc, ref topPos, ref size, memDc, ref pointSource, 0, ref blend, Win32.ULW_ALPHA);
} finally {
Win32.ReleaseDC(IntPtr.Zero, screenDc);
if (hBitmap != IntPtr.Zero) {
Win32.SelectObject(memDc, oldBitmap);
Win32.DeleteObject(hBitmap);
}
Win32.DeleteDC(memDc);
}
}示例11: ToBitmapSource
//Code within this region is credited to user "Alastair Pitts" in the thread http://stackoverflow.com/questions/94456/load-a-wpf-bitmapimage-from-a-system-drawing-bitmap
/// <summary>
/// Converts a <see cref="System.Drawing.Bitmap"/> into a WPF <see cref="BitmapSource"/>.
/// </summary>
/// <remarks>Uses GDI to do the conversion. Hence the call to the marshalled DeleteObject.
/// </remarks>
/// <param name="source">The source bitmap.</param>
/// <returns>A BitmapSource</returns>
public static BitmapSource ToBitmapSource(Bitmap source)
{
BitmapSource bitSrc = null;
var hBitmap = source.GetHbitmap();
try
{
bitSrc = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hBitmap,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
}
catch (Win32Exception)
{
bitSrc = null;
}
finally
{
NativeMethods.DeleteObject(hBitmap);
}
return bitSrc;
}示例12: Freeze
// freeze the form
public void Freeze()
{
// Remember we have frozen the form once more
// Do nothing if it was already frozen
if (++FreezeCount > 1)
return;
Rectangle rect = form.ClientRectangle;
if (rect.IsEmpty || form.WindowState == FormWindowState.Minimized)
return;
Point topLeft = form.PointToScreen(new Point(rect.Left, rect.Top));
// Create a PictureBox that resizes with its contents
pictureBox = new PictureBox();
pictureBox.SizeMode = PictureBoxSizeMode.AutoSize;
// create a bitmap as large as the form's client area and with same color depth
using (Graphics frmGraphics = form.CreateGraphics()) {
Bitmap bitmap = new Bitmap(rect.Width, rect.Height, frmGraphics);
hBitmap = bitmap.GetHbitmap();
pictureBox.Image = Image.FromHbitmap(hBitmap);
}
// copy the screen contents, from the form's client area to the hidden bitmap
using (Graphics picGraphics = Graphics.FromImage(pictureBox.Image)) {
picGraphics.CopyFromScreen(topLeft, Point.Empty, rect.Size, CopyPixelOperation.SourceCopy);
}
// Display the bitmap in the picture box, and show the picture box in front of all other controls
form.Controls.Add(pictureBox);
pictureBox.BringToFront();
}示例13: btnProcess_Click
private void btnProcess_Click(object sender, RoutedEventArgs e)
{
double[,] matrix = new double[3, 3];
matrix[0, 0] = double.Parse(txt00.Text, CultureInfo.InvariantCulture);
matrix[0, 1] = double.Parse(txt01.Text, CultureInfo.InvariantCulture);
matrix[0, 2] = double.Parse(txt02.Text, CultureInfo.InvariantCulture);
matrix[1, 0] = double.Parse(txt10.Text, CultureInfo.InvariantCulture);
matrix[1, 1] = double.Parse(txt11.Text, CultureInfo.InvariantCulture);
matrix[1, 2] = double.Parse(txt12.Text, CultureInfo.InvariantCulture);
matrix[2, 0] = double.Parse(txt20.Text, CultureInfo.InvariantCulture);
matrix[2, 1] = double.Parse(txt21.Text, CultureInfo.InvariantCulture);
matrix[2, 2] = double.Parse(txt22.Text, CultureInfo.InvariantCulture);
GenericFilter sharpen = new GenericFilter();
sharpen.FilterName = "Sharpen";
sharpen.FilterMatrix = matrix;
//sharpen.FilterMatrix = new double[,] {{ 0.0, 0.2, 0.0 },
// { 0.2, 0.2, 0.2 },
// { 0.0, 0.2, 0.2 }};
resultImage = previewImage.ConvolutionFilter(sharpen);
image.Source = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(resultImage.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
previewImage = resultImage;
}示例14: BitmapSourceFromBitmap
public static BitmapSource BitmapSourceFromBitmap(Bitmap bitmap)
{
BitmapSource bitSrc = null;
var hBitmap = bitmap.GetHbitmap();
bitSrc = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(hBitmap, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
return bitSrc;
}示例15: CreateCursor
/// <summary>
/// カーソルを作成する
/// </summary>
/// <param name="bitmap">カーソル画像</param>
/// <param name="xHotSpot">ホットスポットのX座標</param>
/// <param name="yHotSpot">ホットスポットのY座標</param>
/// <returns>作成したカーソル</returns>
public static Cursor CreateCursor(Bitmap bitmap, int xHotSpot, int yHotSpot)
{
Bitmap andMask = new Bitmap(bitmap.Width, bitmap.Height);
Bitmap xorMask = new Bitmap(bitmap.Width, bitmap.Height);
Color transparent = bitmap.GetPixel(bitmap.Width - 1, bitmap.Height - 1);
for (int x = 0; x < bitmap.Width; x++)
{
for (int y = 0; y < bitmap.Height; y++)
{
Color pixel = bitmap.GetPixel(x, y);
if (pixel == transparent)
{
andMask.SetPixel(x, y, Color.White);
xorMask.SetPixel(x, y, Color.Transparent);
}
else
{
andMask.SetPixel(x, y, Color.Black);
xorMask.SetPixel(x, y, pixel);
}
}
}
IntPtr hIcon = bitmap.GetHicon();
IconInfo info = new IconInfo();
NativeMethods.GetIconInfo(hIcon, ref info);
info.xHotspot = xHotSpot;
info.yHotspot = yHotSpot;
info.hbmMask = andMask.GetHbitmap();
info.hbmColor = xorMask.GetHbitmap();
info.fIcon = false;
hIcon = NativeMethods.CreateIconIndirect(ref info);
return new Cursor(hIcon);
}