csharp HImage 转 bitmap
时间: 2023-08-28 14:08:08 浏览: 99
可以使用以下代码将HImage转换为Bitmap:
```csharp
public Bitmap HImageToBitmap(HImage image)
{
IntPtr ptr = image.GetImagePointer1();
int width = image.GetWidth();
int height = image.GetHeight();
Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format8bppIndexed);
BitmapData bitmapData = bitmap.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format8bppIndexed);
int stride = bitmapData.Stride;
byte[] imageData = new byte[stride * height];
Marshal.Copy(ptr, imageData, 0, imageData.Length);
for (int y = 0; y < height; y++)
{
IntPtr row = bitmapData.Scan0 + (y * stride);
Marshal.Copy(imageData, y * stride, row, stride);
}
bitmap.UnlockBits(bitmapData);
ColorPalette palette = bitmap.Palette;
for (int i = 0; i < palette.Entries.Length; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
bitmap.Palette = palette;
return bitmap;
}
```
此代码将HImage转换为8位灰度图像。如果HImage是彩色图像,则需要进行其他操作。